/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 SequenceOfStatements --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:39:54,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:39:54,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:39:54,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:39:54,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:39:54,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:39:54,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:39:54,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:39:54,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:39:54,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:39:54,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:39:54,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:39:54,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:39:54,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:39:54,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:39:54,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:39:54,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:39:54,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:39:54,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:39:54,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:39:54,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:39:54,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:39:54,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:39:54,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:39:54,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:39:54,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:39:54,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:39:54,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:39:54,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:39:54,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:39:54,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:39:54,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:39:54,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:39:54,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:39:54,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:39:54,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:39:54,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:39:54,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:39:54,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:39:54,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:39:54,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:39:54,404 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 [2020-10-12 15:39:54,442 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:39:54,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:39:54,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:39:54,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:39:54,445 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:39:54,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:39:54,446 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:39:54,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:39:54,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:39:54,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:39:54,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:39:54,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:39:54,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:39:54,448 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:39:54,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:39:54,448 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:39:54,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:39:54,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:39:54,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:39:54,449 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:39:54,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:39:54,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:39:54,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:39:54,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:39:54,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:39:54,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:39:54,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:39:54,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:39:54,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:39:54,451 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 -> SequenceOfStatements 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:39:54,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:39:54,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:39:54,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:39:54,813 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:39:54,813 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:39:54,814 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-2.i [2020-10-12 15:39:54,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/53b992896/b111f4d8deb14d3092d5a3cef1efc6e3/FLAGc271bb7ec [2020-10-12 15:39:55,495 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:39:55,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-2.i [2020-10-12 15:39:55,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/53b992896/b111f4d8deb14d3092d5a3cef1efc6e3/FLAGc271bb7ec [2020-10-12 15:39:55,725 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/53b992896/b111f4d8deb14d3092d5a3cef1efc6e3 [2020-10-12 15:39:55,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:39:55,736 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:39:55,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:39:55,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:39:55,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:39:55,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:39:55" (1/1) ... [2020-10-12 15:39:55,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@103260cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:55, skipping insertion in model container [2020-10-12 15:39:55,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:39:55" (1/1) ... [2020-10-12 15:39:55,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:39:55,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:39:56,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:39:56,529 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:39:56,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:39:56,729 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:39:56,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:56 WrapperNode [2020-10-12 15:39:56,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:39:56,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:39:56,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:39:56,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:39:56,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:56" (1/1) ... [2020-10-12 15:39:56,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:56" (1/1) ... [2020-10-12 15:39:56,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:56" (1/1) ... [2020-10-12 15:39:56,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:56" (1/1) ... [2020-10-12 15:39:56,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:56" (1/1) ... [2020-10-12 15:39:56,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:56" (1/1) ... [2020-10-12 15:39:56,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:56" (1/1) ... [2020-10-12 15:39:56,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:39:56,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:39:56,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:39:56,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:39:56,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:56" (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 [2020-10-12 15:39:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:39:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:39:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-12 15:39:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-12 15:39:56,925 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-10-12 15:39:56,925 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2020-10-12 15:39:56,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-12 15:39:56,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-12 15:39:56,927 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-12 15:39:56,927 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2020-10-12 15:39:56,927 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2020-10-12 15:39:56,928 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2020-10-12 15:39:56,928 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2020-10-12 15:39:56,928 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2020-10-12 15:39:56,928 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2020-10-12 15:39:56,929 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2020-10-12 15:39:56,929 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:39:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:39:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-12 15:39:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-12 15:39:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-12 15:39:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-12 15:39:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-12 15:39:56,932 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-12 15:39:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-12 15:39:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-12 15:39:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-12 15:39:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-12 15:39:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-12 15:39:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-12 15:39:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-12 15:39:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-12 15:39:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-12 15:39:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-12 15:39:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-12 15:39:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-12 15:39:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-12 15:39:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-12 15:39:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-12 15:39:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-12 15:39:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-12 15:39:56,937 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-12 15:39:56,937 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-12 15:39:56,937 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-12 15:39:56,937 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-12 15:39:56,937 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-12 15:39:56,937 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-12 15:39:56,938 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-12 15:39:56,938 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-12 15:39:56,938 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-12 15:39:56,938 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-12 15:39:56,938 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-12 15:39:56,938 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-12 15:39:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-12 15:39:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-12 15:39:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-12 15:39:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-12 15:39:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-12 15:39:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-12 15:39:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-12 15:39:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-12 15:39:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-12 15:39:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-12 15:39:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-12 15:39:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-12 15:39:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-12 15:39:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-12 15:39:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-12 15:39:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-12 15:39:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-12 15:39:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 15:39:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 15:39:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-12 15:39:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 15:39:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-12 15:39:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-12 15:39:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-12 15:39:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-12 15:39:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 15:39:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-12 15:39:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-12 15:39:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:39:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-12 15:39:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-12 15:39:56,944 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-12 15:39:56,944 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-12 15:39:56,944 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-12 15:39:56,944 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-12 15:39:56,944 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-12 15:39:56,944 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-12 15:39:56,944 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-12 15:39:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-12 15:39:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-12 15:39:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-12 15:39:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-12 15:39:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-12 15:39:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-12 15:39:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-12 15:39:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-12 15:39:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-12 15:39:56,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-12 15:39:56,946 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-12 15:39:56,946 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-12 15:39:56,946 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-12 15:39:56,946 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-12 15:39:56,946 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-12 15:39:56,946 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-12 15:39:56,946 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-12 15:39:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-12 15:39:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-12 15:39:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-12 15:39:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-12 15:39:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-12 15:39:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-12 15:39:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-12 15:39:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-12 15:39:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-12 15:39:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-12 15:39:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-12 15:39:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-12 15:39:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-10-12 15:39:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-10-12 15:39:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-10-12 15:39:56,949 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-10-12 15:39:56,949 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-10-12 15:39:56,949 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-10-12 15:39:56,950 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-10-12 15:39:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-10-12 15:39:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-10-12 15:39:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-10-12 15:39:56,955 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-10-12 15:39:56,955 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-10-12 15:39:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-10-12 15:39:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-10-12 15:39:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-10-12 15:39:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-10-12 15:39:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-10-12 15:39:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-10-12 15:39:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-10-12 15:39:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-10-12 15:39:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-10-12 15:39:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-10-12 15:39:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-10-12 15:39:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-10-12 15:39:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-10-12 15:39:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-10-12 15:39:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-10-12 15:39:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-10-12 15:39:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-12 15:39:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-10-12 15:39:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-10-12 15:39:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-10-12 15:39:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-10-12 15:39:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-10-12 15:39:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-10-12 15:39:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-10-12 15:39:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-10-12 15:39:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-10-12 15:39:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-12 15:39:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-12 15:39:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-10-12 15:39:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-10-12 15:39:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-10-12 15:39:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-12 15:39:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-10-12 15:39:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-10-12 15:39:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-10-12 15:39:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-10-12 15:39:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-10-12 15:39:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-10-12 15:39:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-10-12 15:39:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-10-12 15:39:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-10-12 15:39:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-10-12 15:39:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-10-12 15:39:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-10-12 15:39:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-10-12 15:39:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-10-12 15:39:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-10-12 15:39:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-10-12 15:39:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-10-12 15:39:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-10-12 15:39:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-10-12 15:39:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-10-12 15:39:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-10-12 15:39:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-10-12 15:39:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-10-12 15:39:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-10-12 15:39:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-10-12 15:39:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-10-12 15:39:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-10-12 15:39:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-10-12 15:39:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-10-12 15:39:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-12 15:39:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-10-12 15:39:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-10-12 15:39:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-10-12 15:39:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-10-12 15:39:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-10-12 15:39:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-10-12 15:39:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-10-12 15:39:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-10-12 15:39:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-10-12 15:39:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-10-12 15:39:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-10-12 15:39:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-10-12 15:39:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-10-12 15:39:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-10-12 15:39:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-10-12 15:39:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-10-12 15:39:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-10-12 15:39:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-10-12 15:39:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-10-12 15:39:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-10-12 15:39:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-10-12 15:39:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-10-12 15:39:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-10-12 15:39:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-10-12 15:39:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-10-12 15:39:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-10-12 15:39:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-10-12 15:39:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:39:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-10-12 15:39:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2020-10-12 15:39:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 15:39:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-12 15:39:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 15:39:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-12 15:39:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-12 15:39:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2020-10-12 15:39:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2020-10-12 15:39:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 15:39:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 15:39:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2020-10-12 15:39:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2020-10-12 15:39:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:39:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2020-10-12 15:39:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 15:39:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2020-10-12 15:39:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2020-10-12 15:39:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:39:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:39:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 15:39:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 15:39:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:39:57,818 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:39:57,819 INFO L295 CfgBuilder]: Removed 41 assume(true) statements. [2020-10-12 15:39:57,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:39:57 BoogieIcfgContainer [2020-10-12 15:39:57,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:39:57,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:39:57,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:39:57,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:39:57,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:39:55" (1/3) ... [2020-10-12 15:39:57,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c71e25d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:39:57, skipping insertion in model container [2020-10-12 15:39:57,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:39:56" (2/3) ... [2020-10-12 15:39:57,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c71e25d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:39:57, skipping insertion in model container [2020-10-12 15:39:57,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:39:57" (3/3) ... [2020-10-12 15:39:57,834 INFO L109 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2020-10-12 15:39:57,846 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:39:57,856 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:39:57,872 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:39:57,900 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:39:57,901 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:39:57,901 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:39:57,901 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:39:57,901 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:39:57,901 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:39:57,901 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:39:57,901 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:39:57,926 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2020-10-12 15:39:57,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-12 15:39:57,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:39:57,934 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:39:57,934 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:39:57,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:39:57,941 INFO L82 PathProgramCache]: Analyzing trace with hash -663354135, now seen corresponding path program 1 times [2020-10-12 15:39:57,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:39:57,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048745744] [2020-10-12 15:39:57,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:39:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:58,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:58,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:58,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:58,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 15:39:58,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:39:58,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-12 15:39:58,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:58,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:39:58,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:39:58,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 15:39:58,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 15:39:58,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:39:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:58,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:58,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:58,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:39:58,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:39:58,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 15:39:58,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:58,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:39:58,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:39:58,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:39:58,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:39:58,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:39:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:58,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:58,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:39:58,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:39:58,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:39:58,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:39:58,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:39:58,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:39:58,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:39:58,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:39:58,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:39:58,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:39:58,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:39:58,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048745744] [2020-10-12 15:39:58,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:39:58,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 15:39:58,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573874584] [2020-10-12 15:39:58,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:39:58,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:39:58,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:39:58,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:39:58,632 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 7 states. [2020-10-12 15:39:59,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:39:59,531 INFO L93 Difference]: Finished difference Result 301 states and 487 transitions. [2020-10-12 15:39:59,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 15:39:59,534 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-12 15:39:59,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:39:59,548 INFO L225 Difference]: With dead ends: 301 [2020-10-12 15:39:59,548 INFO L226 Difference]: Without dead ends: 147 [2020-10-12 15:39:59,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:39:59,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-12 15:39:59,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 129. [2020-10-12 15:39:59,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-12 15:39:59,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2020-10-12 15:39:59,635 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 14 [2020-10-12 15:39:59,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:39:59,636 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2020-10-12 15:39:59,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:39:59,637 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2020-10-12 15:39:59,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-12 15:39:59,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:39:59,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:39:59,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:39:59,640 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:39:59,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:39:59,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1411633869, now seen corresponding path program 1 times [2020-10-12 15:39:59,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:39:59,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080909724] [2020-10-12 15:39:59,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:39:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:39:59,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:00,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:00,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-12 15:40:00,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:00,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 620 [2020-10-12 15:40:00,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:00,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 15:40:00,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:40:00,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 15:40:00,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:00,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:00,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:00,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:00,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:00,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:00,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:40:00,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:00,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:00,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:00,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:40:00,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:00,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:40:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:00,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:00,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:00,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 15:40:00,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:00,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-12 15:40:00,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:00,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:40:00,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:00,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 15:40:00,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:00,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:00,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:00,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:00,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:40:00,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:00,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-12 15:40:00,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:00,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:40:00,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:00,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 15:40:00,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:01,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:40:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:01,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:01,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:01,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:40:01,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:01,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 15:40:01,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:01,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:40:01,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:01,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:40:01,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:01,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:01,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:01,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:01,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:01,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:01,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 15:40:01,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:01,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:40:01,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:01,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:01,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:01,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:40:01,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080909724] [2020-10-12 15:40:01,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:40:01,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 15:40:01,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48072970] [2020-10-12 15:40:01,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 15:40:01,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:01,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 15:40:01,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-12 15:40:01,235 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 16 states. [2020-10-12 15:40:03,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:03,660 INFO L93 Difference]: Finished difference Result 244 states and 291 transitions. [2020-10-12 15:40:03,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 15:40:03,661 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 37 [2020-10-12 15:40:03,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:03,665 INFO L225 Difference]: With dead ends: 244 [2020-10-12 15:40:03,665 INFO L226 Difference]: Without dead ends: 238 [2020-10-12 15:40:03,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=196, Invalid=860, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 15:40:03,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-12 15:40:03,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 209. [2020-10-12 15:40:03,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-12 15:40:03,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 251 transitions. [2020-10-12 15:40:03,707 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 251 transitions. Word has length 37 [2020-10-12 15:40:03,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:03,707 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 251 transitions. [2020-10-12 15:40:03,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 15:40:03,708 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 251 transitions. [2020-10-12 15:40:03,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 15:40:03,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:03,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:40:03,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:40:03,709 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:03,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:03,710 INFO L82 PathProgramCache]: Analyzing trace with hash 2082496891, now seen corresponding path program 1 times [2020-10-12 15:40:03,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:03,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38785669] [2020-10-12 15:40:03,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:03,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:04,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:04,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 15:40:04,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:04,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 898 [2020-10-12 15:40:04,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:04,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 15:40:04,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:40:04,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 15:40:04,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:04,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:04,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:04,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:04,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:04,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:04,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 15:40:04,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:04,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:04,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:04,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:40:04,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:04,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:40:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:04,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:05,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:05,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 15:40:05,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:05,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-12 15:40:05,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:05,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 15:40:05,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:05,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 15:40:05,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:05,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:05,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:05,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:05,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:40:05,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:05,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-12 15:40:05,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:05,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 15:40:05,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:05,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:40:05,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:05,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:40:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:05,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:05,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:05,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:40:05,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:05,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-12 15:40:05,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:05,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:40:05,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:05,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:40:05,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:05,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:05,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:05,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:05,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:05,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:05,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 15:40:05,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:05,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:40:05,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:05,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:05,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:06,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:40:06,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38785669] [2020-10-12 15:40:06,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:40:06,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 15:40:06,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672356908] [2020-10-12 15:40:06,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 15:40:06,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:06,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 15:40:06,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-10-12 15:40:06,034 INFO L87 Difference]: Start difference. First operand 209 states and 251 transitions. Second operand 18 states. [2020-10-12 15:40:08,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:08,966 INFO L93 Difference]: Finished difference Result 329 states and 399 transitions. [2020-10-12 15:40:08,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 15:40:08,967 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 40 [2020-10-12 15:40:08,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:08,971 INFO L225 Difference]: With dead ends: 329 [2020-10-12 15:40:08,971 INFO L226 Difference]: Without dead ends: 326 [2020-10-12 15:40:08,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=207, Invalid=1199, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 15:40:08,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-12 15:40:09,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 290. [2020-10-12 15:40:09,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-12 15:40:09,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2020-10-12 15:40:09,012 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 40 [2020-10-12 15:40:09,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:09,012 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2020-10-12 15:40:09,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 15:40:09,013 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2020-10-12 15:40:09,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-12 15:40:09,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:09,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:40:09,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:40:09,015 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:09,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:09,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1376068061, now seen corresponding path program 1 times [2020-10-12 15:40:09,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:09,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1044658104] [2020-10-12 15:40:09,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:09,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:09,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:09,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-12 15:40:09,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:09,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 579 [2020-10-12 15:40:09,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:09,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 15:40:09,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:40:09,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 15:40:09,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:09,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:09,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:09,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:09,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:09,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:09,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:40:09,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:09,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:09,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:40:09,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:09,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:40:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:09,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:10,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:10,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 15:40:10,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:10,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-10-12 15:40:10,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:10,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 15:40:10,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:10,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 15:40:10,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:10,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:10,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:10,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:10,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:40:10,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:10,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-12 15:40:10,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 15:40:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:10,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:40:10,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:10,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:40:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:10,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:10,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:10,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:40:10,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:10,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-12 15:40:10,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:10,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:40:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:40:10,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:10,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:10,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:10,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:10,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:10,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:10,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 15:40:10,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:10,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:40:10,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:10,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:10,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:40:10,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1044658104] [2020-10-12 15:40:10,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:40:10,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 15:40:10,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251667001] [2020-10-12 15:40:10,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 15:40:10,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:10,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 15:40:10,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-12 15:40:10,792 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand 18 states. [2020-10-12 15:40:13,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:13,655 INFO L93 Difference]: Finished difference Result 323 states and 390 transitions. [2020-10-12 15:40:13,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 15:40:13,658 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 43 [2020-10-12 15:40:13,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:13,662 INFO L225 Difference]: With dead ends: 323 [2020-10-12 15:40:13,662 INFO L226 Difference]: Without dead ends: 320 [2020-10-12 15:40:13,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=200, Invalid=1060, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 15:40:13,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-12 15:40:13,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 290. [2020-10-12 15:40:13,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-12 15:40:13,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 352 transitions. [2020-10-12 15:40:13,696 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 352 transitions. Word has length 43 [2020-10-12 15:40:13,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:13,697 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 352 transitions. [2020-10-12 15:40:13,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 15:40:13,697 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 352 transitions. [2020-10-12 15:40:13,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 15:40:13,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:13,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-12 15:40:13,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:40:13,699 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:13,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:13,700 INFO L82 PathProgramCache]: Analyzing trace with hash 796266502, now seen corresponding path program 1 times [2020-10-12 15:40:13,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:13,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979172300] [2020-10-12 15:40:13,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:13,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:14,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:14,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 15:40:14,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:14,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 561 [2020-10-12 15:40:14,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 15:40:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:40:14,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 15:40:14,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:14,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:14,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:14,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:14,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:14,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:14,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:40:14,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:14,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:14,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:14,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:40:14,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:14,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:40:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:14,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:14,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:14,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 15:40:14,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:14,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426 [2020-10-12 15:40:14,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:14,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 15:40:14,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:14,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 15:40:14,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:15,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:15,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:15,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:15,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:40:15,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:15,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-12 15:40:15,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:15,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 15:40:15,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:15,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:40:15,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:15,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:40:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:15,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:15,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:15,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:40:15,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:15,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-12 15:40:15,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:15,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:40:15,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:15,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:40:15,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:15,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:15,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:15,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:15,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:15,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:15,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 15:40:15,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:15,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:40:15,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:15,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:15,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:15,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:40:15,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979172300] [2020-10-12 15:40:15,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:40:15,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-12 15:40:15,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416473532] [2020-10-12 15:40:15,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 15:40:15,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:15,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 15:40:15,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2020-10-12 15:40:15,861 INFO L87 Difference]: Start difference. First operand 290 states and 352 transitions. Second operand 19 states. [2020-10-12 15:40:19,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:19,327 INFO L93 Difference]: Finished difference Result 323 states and 389 transitions. [2020-10-12 15:40:19,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 15:40:19,329 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 46 [2020-10-12 15:40:19,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:19,333 INFO L225 Difference]: With dead ends: 323 [2020-10-12 15:40:19,333 INFO L226 Difference]: Without dead ends: 320 [2020-10-12 15:40:19,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=189, Invalid=1217, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 15:40:19,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-12 15:40:19,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 290. [2020-10-12 15:40:19,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-12 15:40:19,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 351 transitions. [2020-10-12 15:40:19,366 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 351 transitions. Word has length 46 [2020-10-12 15:40:19,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:19,367 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 351 transitions. [2020-10-12 15:40:19,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 15:40:19,367 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 351 transitions. [2020-10-12 15:40:19,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-12 15:40:19,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:19,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-12 15:40:19,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:40:19,369 INFO L427 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:19,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:19,370 INFO L82 PathProgramCache]: Analyzing trace with hash 262392368, now seen corresponding path program 1 times [2020-10-12 15:40:19,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:19,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646968265] [2020-10-12 15:40:19,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:19,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:20,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:20,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:20,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-12 15:40:20,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:40:20,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1394 [2020-10-12 15:40:20,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:20,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-12 15:40:20,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:40:20,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 15:40:20,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:21,100 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-10-12 15:40:21,269 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2020-10-12 15:40:21,391 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 35 [2020-10-12 15:40:21,538 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2020-10-12 15:40:21,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:21,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:21,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:21,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:21,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:21,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:40:21,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:40:21,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:21,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:40:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:21,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:22,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:22,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 15:40:22,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:22,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-12 15:40:22,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:22,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 15:40:22,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:22,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 15:40:22,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:22,625 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2020-10-12 15:40:22,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:22,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:22,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:22,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:40:22,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:22,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-10-12 15:40:22,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:22,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 15:40:22,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:22,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:40:22,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:24,869 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 299 DAG size of output: 68 [2020-10-12 15:40:25,396 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 40 [2020-10-12 15:40:25,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:40:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:25,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:25,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:25,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:40:25,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:25,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-12 15:40:25,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:40:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:40:25,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:28,305 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 422 DAG size of output: 84 [2020-10-12 15:40:28,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:28,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:28,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:28,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:28,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:28,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 15:40:28,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:28,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:40:28,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:28,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:28,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:28,866 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2020-10-12 15:40:28,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:40:28,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646968265] [2020-10-12 15:40:28,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:40:28,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 15:40:28,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472324833] [2020-10-12 15:40:28,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-12 15:40:28,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:28,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-12 15:40:28,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2020-10-12 15:40:28,926 INFO L87 Difference]: Start difference. First operand 290 states and 351 transitions. Second operand 23 states. [2020-10-12 15:40:29,340 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-10-12 15:40:29,977 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-12 15:40:30,245 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 15:40:30,483 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 15:40:30,750 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-12 15:40:31,219 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-12 15:40:31,516 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 15:40:32,063 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 126 [2020-10-12 15:40:32,476 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 15:40:32,676 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 15:40:32,951 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 15:40:33,132 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 15:40:33,326 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 15:40:36,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:36,093 INFO L93 Difference]: Finished difference Result 317 states and 380 transitions. [2020-10-12 15:40:36,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 15:40:36,095 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 49 [2020-10-12 15:40:36,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:36,098 INFO L225 Difference]: With dead ends: 317 [2020-10-12 15:40:36,098 INFO L226 Difference]: Without dead ends: 314 [2020-10-12 15:40:36,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=284, Invalid=1608, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 15:40:36,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-10-12 15:40:36,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 290. [2020-10-12 15:40:36,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-12 15:40:36,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 350 transitions. [2020-10-12 15:40:36,132 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 350 transitions. Word has length 49 [2020-10-12 15:40:36,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:36,132 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 350 transitions. [2020-10-12 15:40:36,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-12 15:40:36,133 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 350 transitions. [2020-10-12 15:40:36,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 15:40:36,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:36,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-12 15:40:36,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 15:40:36,135 INFO L427 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:36,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:36,136 INFO L82 PathProgramCache]: Analyzing trace with hash -103719498, now seen corresponding path program 1 times [2020-10-12 15:40:36,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:36,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239091782] [2020-10-12 15:40:36,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:36,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:36,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:36,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 15:40:36,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:36,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 639 [2020-10-12 15:40:36,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:36,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-12 15:40:36,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:40:36,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 15:40:36,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:36,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:36,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:36,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:36,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:36,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:36,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:40:36,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:36,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:36,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:36,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:40:36,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:37,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:40:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:37,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:37,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:37,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 15:40:37,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:37,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-12 15:40:37,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:37,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 15:40:37,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 15:40:37,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:37,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:37,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:37,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:37,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:40:37,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:37,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-12 15:40:37,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:37,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 15:40:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:37,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:40:37,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:37,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:40:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:37,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:37,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:37,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:40:37,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:37,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 15:40:37,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:37,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:40:37,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:37,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:40:37,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:37,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:37,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:37,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:37,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:37,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:37,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 15:40:37,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:37,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:40:37,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:37,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:37,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:38,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:40:38,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239091782] [2020-10-12 15:40:38,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:40:38,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-12 15:40:38,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910447238] [2020-10-12 15:40:38,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 15:40:38,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:38,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 15:40:38,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-10-12 15:40:38,043 INFO L87 Difference]: Start difference. First operand 290 states and 350 transitions. Second operand 19 states. [2020-10-12 15:40:41,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:41,678 INFO L93 Difference]: Finished difference Result 325 states and 391 transitions. [2020-10-12 15:40:41,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 15:40:41,684 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2020-10-12 15:40:41,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:41,689 INFO L225 Difference]: With dead ends: 325 [2020-10-12 15:40:41,689 INFO L226 Difference]: Without dead ends: 322 [2020-10-12 15:40:41,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=273, Invalid=1449, Unknown=0, NotChecked=0, Total=1722 [2020-10-12 15:40:41,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-10-12 15:40:41,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 290. [2020-10-12 15:40:41,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-12 15:40:41,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 349 transitions. [2020-10-12 15:40:41,720 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 349 transitions. Word has length 52 [2020-10-12 15:40:41,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:41,721 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 349 transitions. [2020-10-12 15:40:41,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 15:40:41,721 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 349 transitions. [2020-10-12 15:40:41,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-12 15:40:41,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:41,723 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:40:41,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 15:40:41,723 INFO L427 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:41,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:41,724 INFO L82 PathProgramCache]: Analyzing trace with hash 354184987, now seen corresponding path program 1 times [2020-10-12 15:40:41,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:41,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [555033763] [2020-10-12 15:40:41,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:41,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:44,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:44,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 15:40:44,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:44,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2677 [2020-10-12 15:40:44,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-12 15:40:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:40:44,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 15:40:44,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:44,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:44,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:44,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:44,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:44,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:44,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:40:44,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:44,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:40:44,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:44,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:40:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:44,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:46,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:46,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-12 15:40:46,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:46,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1549 [2020-10-12 15:40:46,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:46,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-12 15:40:46,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:46,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 15:40:46,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:46,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:46,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:46,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:46,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:40:46,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:46,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-12 15:40:46,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:46,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 15:40:46,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:46,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:40:46,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:46,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:40:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:46,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:46,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:46,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:40:46,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:46,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-12 15:40:46,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:40:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:46,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:40:46,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:46,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:40:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:46,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:46,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:46,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:46,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:46,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:40:46,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:46,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:40:46,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:46,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:46,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:47,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:40:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:47,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:47,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:47,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 15:40:47,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:47,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-12 15:40:47,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 15:40:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:40:47,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:51,620 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 226 DAG size of output: 86 [2020-10-12 15:41:05,457 WARN L193 SmtUtils]: Spent 9.61 s on a formula simplification. DAG size of input: 526 DAG size of output: 119 [2020-10-12 15:41:09,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:41:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:09,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:10,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:10,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:41:10,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:41:10,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-10-12 15:41:10,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:10,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 15:41:10,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:41:10,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:41:10,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0