/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 --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-rb-sentinel-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:24:26,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:24:26,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:24:26,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:24:26,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:24:26,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:24:26,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:24:26,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:24:26,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:24:26,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:24:26,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:24:26,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:24:26,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:24:26,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:24:26,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:24:26,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:24:26,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:24:26,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:24:26,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:24:26,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:24:26,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:24:26,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:24:26,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:24:26,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:24:26,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:24:26,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:24:26,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:24:26,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:24:26,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:24:26,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:24:26,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:24:26,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:24:26,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:24:26,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:24:26,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:24:26,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:24:26,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:24:26,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:24:26,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:24:26,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:24:26,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:24:26,991 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 [2020-09-21 11:24:27,035 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:24:27,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:24:27,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:24:27,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:24:27,037 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:24:27,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:24:27,038 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:24:27,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:24:27,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:24:27,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:24:27,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:24:27,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:24:27,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:24:27,039 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:24:27,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:24:27,040 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:24:27,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:24:27,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:24:27,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:24:27,041 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:24:27,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:24:27,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:24:27,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:24:27,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:24:27,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:24:27,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:24:27,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:24:27,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:24:27,042 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:24:27,043 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:24:27,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:24:27,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:24:27,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:24:27,583 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:24:27,584 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:24:27,585 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-rb-sentinel-2.i [2020-09-21 11:24:27,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/acd6d9aac/104856cdf876447bbbe5799592117cf4/FLAG5f0cd158b [2020-09-21 11:24:28,329 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:24:28,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/sll-rb-sentinel-2.i [2020-09-21 11:24:28,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/acd6d9aac/104856cdf876447bbbe5799592117cf4/FLAG5f0cd158b [2020-09-21 11:24:28,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/acd6d9aac/104856cdf876447bbbe5799592117cf4 [2020-09-21 11:24:28,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:24:28,565 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:24:28,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:24:28,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:24:28,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:24:28,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:24:28" (1/1) ... [2020-09-21 11:24:28,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:28, skipping insertion in model container [2020-09-21 11:24:28,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:24:28" (1/1) ... [2020-09-21 11:24:28,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:24:28,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:24:29,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:24:29,146 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:24:29,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:24:29,291 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:24:29,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:29 WrapperNode [2020-09-21 11:24:29,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:24:29,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:24:29,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:24:29,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:24:29,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:29" (1/1) ... [2020-09-21 11:24:29,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:29" (1/1) ... [2020-09-21 11:24:29,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:29" (1/1) ... [2020-09-21 11:24:29,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:29" (1/1) ... [2020-09-21 11:24:29,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:29" (1/1) ... [2020-09-21 11:24:29,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:29" (1/1) ... [2020-09-21 11:24:29,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:29" (1/1) ... [2020-09-21 11:24:29,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:24:29,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:24:29,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:24:29,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:24:29,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:24:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:24:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:24:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:24:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-21 11:24:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-21 11:24:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-21 11:24:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-21 11:24:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-21 11:24:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-21 11:24:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-21 11:24:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-21 11:24:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-21 11:24:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-21 11:24:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-21 11:24:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-21 11:24:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-21 11:24:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-21 11:24:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-21 11:24:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-21 11:24:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-21 11:24:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-21 11:24:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-21 11:24:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-21 11:24:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-21 11:24:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-21 11:24:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-21 11:24:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-21 11:24:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-21 11:24:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-21 11:24:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-21 11:24:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-21 11:24:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-21 11:24:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-21 11:24:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-21 11:24:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-21 11:24:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-21 11:24:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-21 11:24:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-21 11:24:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-21 11:24:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-21 11:24:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-21 11:24:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-21 11:24:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-21 11:24:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-21 11:24:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-21 11:24:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-21 11:24:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-21 11:24:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-21 11:24:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-21 11:24:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-21 11:24:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-21 11:24:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-21 11:24:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-21 11:24:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:24:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-21 11:24:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-21 11:24:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:24:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-21 11:24:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-21 11:24:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-21 11:24:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-21 11:24:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-21 11:24:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 11:24:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-21 11:24:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-21 11:24:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-21 11:24:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:24:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-21 11:24:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-21 11:24:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-21 11:24:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-21 11:24:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-21 11:24:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-21 11:24:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-21 11:24:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-21 11:24:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-21 11:24:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-21 11:24:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-21 11:24:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-21 11:24:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-21 11:24:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-21 11:24:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-21 11:24:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-21 11:24:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-21 11:24:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-21 11:24:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-21 11:24:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-21 11:24:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-21 11:24:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-21 11:24:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-21 11:24:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-21 11:24:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-21 11:24:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-21 11:24:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-21 11:24:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-21 11:24:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-21 11:24:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-21 11:24:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-21 11:24:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-21 11:24:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-21 11:24:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-21 11:24:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-21 11:24:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-21 11:24:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-21 11:24:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-21 11:24:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-21 11:24:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:24:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:24:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:24:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:24:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:24:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:24:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:24:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:24:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:24:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:24:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:24:30,058 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:24:30,059 INFO L295 CfgBuilder]: Removed 11 assume(true) statements. [2020-09-21 11:24:30,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:24:30 BoogieIcfgContainer [2020-09-21 11:24:30,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:24:30,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:24:30,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:24:30,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:24:30,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:24:28" (1/3) ... [2020-09-21 11:24:30,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4d4d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:24:30, skipping insertion in model container [2020-09-21 11:24:30,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:29" (2/3) ... [2020-09-21 11:24:30,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4d4d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:24:30, skipping insertion in model container [2020-09-21 11:24:30,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:24:30" (3/3) ... [2020-09-21 11:24:30,077 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-rb-sentinel-2.i [2020-09-21 11:24:30,088 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:24:30,099 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-09-21 11:24:30,122 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-21 11:24:30,151 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:24:30,152 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:24:30,152 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:24:30,152 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:24:30,152 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:24:30,152 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:24:30,152 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:24:30,153 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:24:30,174 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-09-21 11:24:30,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-21 11:24:30,181 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:30,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:30,183 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:30,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:30,190 INFO L82 PathProgramCache]: Analyzing trace with hash -742552803, now seen corresponding path program 1 times [2020-09-21 11:24:30,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:30,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1002308784] [2020-09-21 11:24:30,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:30,366 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:30,366 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:30,366 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:30,367 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:30,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:24:30,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:30,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:24:30,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:30,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:30,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:24:30,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:30,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:30,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:30,457 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:30,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:30,458 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:30,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:30,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:30,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:30,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:24:30,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:30,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:30,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:30,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:30,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:30,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:24:30,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1002308784] [2020-09-21 11:24:30,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:24:30,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:24:30,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646954362] [2020-09-21 11:24:30,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:24:30,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:30,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:24:30,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:24:30,505 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2020-09-21 11:24:30,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:30,688 INFO L93 Difference]: Finished difference Result 67 states and 104 transitions. [2020-09-21 11:24:30,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:24:30,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-21 11:24:30,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:30,740 INFO L225 Difference]: With dead ends: 67 [2020-09-21 11:24:30,741 INFO L226 Difference]: Without dead ends: 31 [2020-09-21 11:24:30,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:24:30,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-21 11:24:30,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-21 11:24:30,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-21 11:24:30,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-09-21 11:24:30,813 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 10 [2020-09-21 11:24:30,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:30,814 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-09-21 11:24:30,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:24:30,814 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-09-21 11:24:30,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-21 11:24:30,814 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:30,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:30,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:24:30,815 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:30,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:30,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1556669446, now seen corresponding path program 1 times [2020-09-21 11:24:30,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:30,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608359728] [2020-09-21 11:24:30,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:30,944 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:30,945 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:30,945 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:30,945 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:30,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:24:30,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:30,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 11:24:30,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:30,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:24:30,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:24:30,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:24:30,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:31,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:31,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:31,008 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:31,008 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:31,009 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:31,009 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:31,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:31,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:31,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:31,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:31,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:31,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:31,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:31,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:31,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:24:31,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608359728] [2020-09-21 11:24:31,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:24:31,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:24:31,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32802965] [2020-09-21 11:24:31,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:24:31,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:31,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:24:31,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:24:31,023 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 5 states. [2020-09-21 11:24:31,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:31,140 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2020-09-21 11:24:31,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:24:31,140 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-09-21 11:24:31,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:31,142 INFO L225 Difference]: With dead ends: 37 [2020-09-21 11:24:31,142 INFO L226 Difference]: Without dead ends: 35 [2020-09-21 11:24:31,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:24:31,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-21 11:24:31,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2020-09-21 11:24:31,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-09-21 11:24:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2020-09-21 11:24:31,150 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 11 [2020-09-21 11:24:31,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:31,150 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2020-09-21 11:24:31,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:24:31,151 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2020-09-21 11:24:31,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-21 11:24:31,151 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:31,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:31,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:24:31,152 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:31,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:31,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1973625457, now seen corresponding path program 1 times [2020-09-21 11:24:31,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:31,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037101288] [2020-09-21 11:24:31,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:31,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:31,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:31,249 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:31,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:31,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 11:24:31,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:31,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 11:24:31,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:31,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:24:31,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:24:31,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:24:31,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:31,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:31,336 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:31,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:31,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:31,337 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:31,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:31,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:31,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:31,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:31,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:31,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:31,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:31,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:31,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:24:31,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037101288] [2020-09-21 11:24:31,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:24:31,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:24:31,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928866404] [2020-09-21 11:24:31,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:24:31,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:31,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:24:31,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:24:31,349 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 6 states. [2020-09-21 11:24:31,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:31,511 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2020-09-21 11:24:31,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:24:31,511 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-09-21 11:24:31,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:31,513 INFO L225 Difference]: With dead ends: 54 [2020-09-21 11:24:31,513 INFO L226 Difference]: Without dead ends: 52 [2020-09-21 11:24:31,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:24:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-21 11:24:31,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 36. [2020-09-21 11:24:31,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-21 11:24:31,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-09-21 11:24:31,523 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 14 [2020-09-21 11:24:31,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:31,523 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-09-21 11:24:31,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:24:31,524 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-09-21 11:24:31,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-21 11:24:31,525 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:31,525 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:31,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:24:31,525 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:31,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:31,526 INFO L82 PathProgramCache]: Analyzing trace with hash -954667545, now seen corresponding path program 1 times [2020-09-21 11:24:31,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:31,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187649593] [2020-09-21 11:24:31,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:31,739 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:31,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:31,740 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:31,740 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:31,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 11:24:31,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:31,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-21 11:24:31,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:24:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:24:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:24:31,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:31,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:31,946 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:31,946 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:31,946 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:31,947 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:31,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:31,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:31,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:31,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:31,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:31,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:31,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:31,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:31,956 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:24:31,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187649593] [2020-09-21 11:24:31,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:24:31,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:24:31,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205254831] [2020-09-21 11:24:31,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:24:31,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:31,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:24:31,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:24:31,959 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 8 states. [2020-09-21 11:24:32,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:32,332 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2020-09-21 11:24:32,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:24:32,333 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-09-21 11:24:32,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:32,334 INFO L225 Difference]: With dead ends: 70 [2020-09-21 11:24:32,334 INFO L226 Difference]: Without dead ends: 68 [2020-09-21 11:24:32,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:24:32,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-21 11:24:32,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 42. [2020-09-21 11:24:32,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-21 11:24:32,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2020-09-21 11:24:32,343 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 17 [2020-09-21 11:24:32,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:32,344 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2020-09-21 11:24:32,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:24:32,344 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-09-21 11:24:32,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-21 11:24:32,345 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:32,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:32,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:24:32,346 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:32,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:32,346 INFO L82 PathProgramCache]: Analyzing trace with hash 903516662, now seen corresponding path program 1 times [2020-09-21 11:24:32,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:32,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1947635126] [2020-09-21 11:24:32,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:32,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:24:32,368 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Something went wrong, the set of all crits should be unsatisfiable! at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.Shrinking.shrink(Shrinking.java:196) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.shrinkVanillaUnsatCore(MusEnumerationScript.java:414) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:205) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:150) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-09-21 11:24:32,376 INFO L168 Benchmark]: Toolchain (without parser) took 3814.61 ms. Allocated memory was 138.9 MB in the beginning and 250.1 MB in the end (delta: 111.1 MB). Free memory was 100.9 MB in the beginning and 208.7 MB in the end (delta: -107.9 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:24:32,376 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:24:32,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.68 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.2 MB in the beginning and 169.3 MB in the end (delta: -69.1 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:24:32,378 INFO L168 Benchmark]: Boogie Preprocessor took 71.24 ms. Allocated memory is still 201.9 MB. Free memory was 169.3 MB in the beginning and 165.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:24:32,379 INFO L168 Benchmark]: RCFGBuilder took 699.82 ms. Allocated memory is still 201.9 MB. Free memory was 165.9 MB in the beginning and 119.4 MB in the end (delta: 46.5 MB). Peak memory consumption was 46.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:24:32,380 INFO L168 Benchmark]: TraceAbstraction took 2306.74 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 118.7 MB in the beginning and 208.7 MB in the end (delta: -90.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:24:32,384 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 726.68 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.2 MB in the beginning and 169.3 MB in the end (delta: -69.1 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.24 ms. Allocated memory is still 201.9 MB. Free memory was 169.3 MB in the beginning and 165.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 699.82 ms. Allocated memory is still 201.9 MB. Free memory was 165.9 MB in the beginning and 119.4 MB in the end (delta: 46.5 MB). Peak memory consumption was 46.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2306.74 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 118.7 MB in the beginning and 208.7 MB in the end (delta: -90.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Something went wrong, the set of all crits should be unsatisfiable! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Something went wrong, the set of all crits should be unsatisfiable!: de.uni_freiburg.informatik.ultimate.smtinterpol.muses.Shrinking.shrink(Shrinking.java:196) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...