/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=NARROWEST --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/ldv-regression/rule57_ebda_blast_2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:29:33,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:29:33,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:29:33,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:29:33,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:29:33,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:29:33,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:29:33,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:29:33,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:29:33,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:29:33,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:29:33,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:29:33,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:29:33,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:29:33,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:29:33,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:29:33,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:29:33,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:29:33,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:29:33,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:29:33,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:29:33,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:29:33,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:29:33,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:29:33,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:29:33,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:29:33,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:29:33,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:29:33,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:29:33,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:29:33,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:29:33,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:29:33,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:29:33,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:29:33,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:29:33,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:29:33,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:29:33,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:29:33,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:29:33,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:29:33,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:29:33,883 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 [2020-10-13 10:29:33,905 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:29:33,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:29:33,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:29:33,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:29:33,906 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:29:33,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:29:33,907 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:29:33,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:29:33,907 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:29:33,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:29:33,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:29:33,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:29:33,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:29:33,908 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:29:33,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:29:33,908 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:29:33,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:29:33,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:29:33,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:29:33,909 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:29:33,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:29:33,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:29:33,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:29:33,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:29:33,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:29:33,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:29:33,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:29:33,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:29:33,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:29:33,911 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:29:34,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:29:34,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:29:34,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:29:34,203 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:29:34,204 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:29:34,204 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-10-13 10:29:34,263 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbe94f74b/91114838f13d4ca4a70b0f36da25073b/FLAG9204b0b92 [2020-10-13 10:29:34,670 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:29:34,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-10-13 10:29:34,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbe94f74b/91114838f13d4ca4a70b0f36da25073b/FLAG9204b0b92 [2020-10-13 10:29:35,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbe94f74b/91114838f13d4ca4a70b0f36da25073b [2020-10-13 10:29:35,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:29:35,095 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:29:35,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:29:35,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:29:35,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:29:35,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:29:35" (1/1) ... [2020-10-13 10:29:35,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2584cbd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:35, skipping insertion in model container [2020-10-13 10:29:35,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:29:35" (1/1) ... [2020-10-13 10:29:35,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:29:35,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:29:35,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:29:35,425 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:29:35,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:29:35,589 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:29:35,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:35 WrapperNode [2020-10-13 10:29:35,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:29:35,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:29:35,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:29:35,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:29:35,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:35" (1/1) ... [2020-10-13 10:29:35,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:35" (1/1) ... [2020-10-13 10:29:35,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:35" (1/1) ... [2020-10-13 10:29:35,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:35" (1/1) ... [2020-10-13 10:29:35,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:35" (1/1) ... [2020-10-13 10:29:35,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:35" (1/1) ... [2020-10-13 10:29:35,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:35" (1/1) ... [2020-10-13 10:29:35,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:29:35,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:29:35,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:29:35,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:29:35,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:35" (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 [2020-10-13 10:29:35,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:29:35,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:29:35,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-13 10:29:35,756 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 10:29:35,756 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 10:29:35,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-10-13 10:29:35,757 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-10-13 10:29:35,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-10-13 10:29:35,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-10-13 10:29:35,758 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:29:35,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 10:29:35,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:29:35,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 10:29:35,759 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-13 10:29:35,759 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 10:29:35,759 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 10:29:35,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 10:29:35,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 10:29:35,760 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 10:29:35,760 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-10-13 10:29:35,760 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-10-13 10:29:35,761 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-10-13 10:29:35,761 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-10-13 10:29:35,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 10:29:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 10:29:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 10:29:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:29:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:29:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:29:35,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 10:29:35,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:29:36,148 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:29:36,148 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 10:29:36,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:29:36 BoogieIcfgContainer [2020-10-13 10:29:36,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:29:36,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:29:36,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:29:36,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:29:36,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:29:35" (1/3) ... [2020-10-13 10:29:36,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed39f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:29:36, skipping insertion in model container [2020-10-13 10:29:36,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:29:35" (2/3) ... [2020-10-13 10:29:36,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed39f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:29:36, skipping insertion in model container [2020-10-13 10:29:36,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:29:36" (3/3) ... [2020-10-13 10:29:36,161 INFO L109 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-10-13 10:29:36,169 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:29:36,176 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:29:36,189 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:29:36,209 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:29:36,209 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:29:36,210 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:29:36,210 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:29:36,210 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:29:36,210 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:29:36,210 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:29:36,211 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:29:36,228 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2020-10-13 10:29:36,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-13 10:29:36,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:29:36,236 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] [2020-10-13 10:29:36,236 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:29:36,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:29:36,242 INFO L82 PathProgramCache]: Analyzing trace with hash 502124135, now seen corresponding path program 1 times [2020-10-13 10:29:36,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:29:36,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123480018] [2020-10-13 10:29:36,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:29:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:36,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:36,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:37,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:37,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 10:29:37,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:29:37,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 766 [2020-10-13 10:29:37,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:37,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:29:37,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 10:29:37,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 10:29:37,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:29:37,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:29:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:37,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:37,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:37,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:29:37,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:37,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:29:37,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:37,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:29:37,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:37,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:29:37,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:29:37,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:29:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:37,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:37,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:37,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 10:29:37,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:37,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 10:29:37,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:29:37,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 10:29:37,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 10:29:37,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:29:37,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:29:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:37,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:37,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:37,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:29:37,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:37,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 10:29:37,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:37,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:29:37,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:37,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 10:29:37,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:37,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:29:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:37,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:37,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:37,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:29:37,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:37,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:29:37,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:29:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:37,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:29:37,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:29:37,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:29:37,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123480018] [2020-10-13 10:29:37,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:29:37,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 10:29:37,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282993283] [2020-10-13 10:29:37,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 10:29:37,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:29:37,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 10:29:37,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-13 10:29:37,488 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 10 states. [2020-10-13 10:29:37,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:29:37,905 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2020-10-13 10:29:37,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 10:29:37,906 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-10-13 10:29:37,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:29:37,917 INFO L225 Difference]: With dead ends: 81 [2020-10-13 10:29:37,918 INFO L226 Difference]: Without dead ends: 62 [2020-10-13 10:29:37,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-10-13 10:29:37,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-13 10:29:37,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-10-13 10:29:37,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-13 10:29:37,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2020-10-13 10:29:37,975 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 26 [2020-10-13 10:29:37,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:29:37,980 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2020-10-13 10:29:37,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 10:29:37,981 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2020-10-13 10:29:37,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-13 10:29:37,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:29:37,983 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:29:37,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:29:37,984 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:29:37,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:29:37,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1817820821, now seen corresponding path program 1 times [2020-10-13 10:29:37,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:29:37,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1171374008] [2020-10-13 10:29:37,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:29:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:38,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:38,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:38,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:38,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 10:29:38,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:29:38,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 428 [2020-10-13 10:29:38,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:29:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-13 10:29:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 10:29:38,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:29:38,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:29:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:38,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:38,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:38,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:29:38,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:38,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:29:38,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:38,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:29:38,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:38,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:29:38,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:38,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:29:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:38,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:38,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:38,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-13 10:29:38,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:38,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 10:29:38,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:38,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:29:38,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 10:29:38,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 10:29:38,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:38,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:29:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:38,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:38,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:38,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:29:38,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:38,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:29:38,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:38,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:29:38,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:38,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:29:38,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:38,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:29:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:38,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:38,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:38,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:29:38,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:38,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:29:38,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:38,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:29:38,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:38,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:29:38,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:38,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 10:29:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:38,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:38,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:38,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:29:38,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:38,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 10:29:38,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:38,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:29:38,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:38,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 10:29:38,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:38,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:29:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:38,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:38,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:38,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:29:38,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:38,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:29:38,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:38,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:29:38,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:38,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 10:29:38,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 10:29:38,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1171374008] [2020-10-13 10:29:38,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:29:38,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 10:29:38,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646494541] [2020-10-13 10:29:38,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 10:29:38,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:29:38,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 10:29:38,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-13 10:29:38,735 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand 10 states. [2020-10-13 10:29:39,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:29:39,271 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2020-10-13 10:29:39,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 10:29:39,272 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-10-13 10:29:39,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:29:39,277 INFO L225 Difference]: With dead ends: 79 [2020-10-13 10:29:39,278 INFO L226 Difference]: Without dead ends: 70 [2020-10-13 10:29:39,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2020-10-13 10:29:39,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-13 10:29:39,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-10-13 10:29:39,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-13 10:29:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2020-10-13 10:29:39,302 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 37 [2020-10-13 10:29:39,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:29:39,303 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2020-10-13 10:29:39,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 10:29:39,306 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2020-10-13 10:29:39,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 10:29:39,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:29:39,309 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:29:39,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:29:39,309 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:29:39,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:29:39,310 INFO L82 PathProgramCache]: Analyzing trace with hash -759518161, now seen corresponding path program 1 times [2020-10-13 10:29:39,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:29:39,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643476243] [2020-10-13 10:29:39,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:29:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:39,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:39,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:39,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 10:29:39,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:39,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-13 10:29:39,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:39,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:29:39,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-13 10:29:39,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:29:39,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:39,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:29:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:39,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:39,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:39,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:29:39,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:39,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:29:39,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:39,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:29:39,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:39,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:29:39,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:29:39,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:29:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:39,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:39,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:39,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 10:29:39,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:39,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 10:29:39,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:39,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:29:39,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:39,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 10:29:39,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:39,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:29:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:39,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:39,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:39,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:29:39,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:39,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:29:39,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:29:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:29:39,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:39,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:29:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:39,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:39,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:39,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:29:39,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:39,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:29:39,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:39,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:29:39,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:39,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:29:39,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:39,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 10:29:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:39,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:39,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:39,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:29:39,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:39,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:29:39,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:39,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:29:39,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:39,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:29:39,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:39,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:29:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:39,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:39,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:39,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:29:39,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:39,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:29:39,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:39,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:29:39,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:39,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:29:39,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:39,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 10:29:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:39,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:39,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:39,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:29:39,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:39,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:29:39,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:39,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:29:39,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:39,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:29:39,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:39,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:29:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:39,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:39,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:39,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 10:29:39,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:29:39,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:29:39,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:39,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:29:39,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:39,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 10:29:39,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:39,723 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 10:29:39,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643476243] [2020-10-13 10:29:39,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:29:39,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 10:29:39,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184251038] [2020-10-13 10:29:39,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 10:29:39,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:29:39,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 10:29:39,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:29:39,726 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 8 states. [2020-10-13 10:29:40,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:29:40,141 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions. [2020-10-13 10:29:40,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 10:29:40,142 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-10-13 10:29:40,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:29:40,144 INFO L225 Difference]: With dead ends: 80 [2020-10-13 10:29:40,144 INFO L226 Difference]: Without dead ends: 68 [2020-10-13 10:29:40,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-10-13 10:29:40,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-13 10:29:40,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-10-13 10:29:40,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-13 10:29:40,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-10-13 10:29:40,157 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 51 [2020-10-13 10:29:40,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:29:40,157 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-10-13 10:29:40,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 10:29:40,157 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-10-13 10:29:40,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 10:29:40,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:29:40,159 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:29:40,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 10:29:40,160 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:29:40,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:29:40,160 INFO L82 PathProgramCache]: Analyzing trace with hash -501352723, now seen corresponding path program 1 times [2020-10-13 10:29:40,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:29:40,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106146321] [2020-10-13 10:29:40,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:29:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 10:29:40,183 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 10:29:40,184 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 10:29:40,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 10:29:40,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:29:40 BoogieIcfgContainer [2020-10-13 10:29:40,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 10:29:40,210 INFO L168 Benchmark]: Toolchain (without parser) took 5114.63 ms. Allocated memory was 139.5 MB in the beginning and 283.1 MB in the end (delta: 143.7 MB). Free memory was 101.7 MB in the beginning and 168.4 MB in the end (delta: -66.7 MB). Peak memory consumption was 77.0 MB. Max. memory is 7.1 GB. [2020-10-13 10:29:40,211 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 10:29:40,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.65 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 179.6 MB in the end (delta: -78.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-10-13 10:29:40,213 INFO L168 Benchmark]: Boogie Preprocessor took 89.04 ms. Allocated memory is still 202.4 MB. Free memory was 179.6 MB in the beginning and 177.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-13 10:29:40,213 INFO L168 Benchmark]: RCFGBuilder took 470.56 ms. Allocated memory is still 202.4 MB. Free memory was 177.6 MB in the beginning and 153.3 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-10-13 10:29:40,214 INFO L168 Benchmark]: TraceAbstraction took 4052.71 ms. Allocated memory was 202.4 MB in the beginning and 283.1 MB in the end (delta: 80.7 MB). Free memory was 152.7 MB in the beginning and 168.4 MB in the end (delta: -15.7 MB). Peak memory consumption was 65.0 MB. Max. memory is 7.1 GB. [2020-10-13 10:29:40,218 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 494.65 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 179.6 MB in the end (delta: -78.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.04 ms. Allocated memory is still 202.4 MB. Free memory was 179.6 MB in the beginning and 177.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 470.56 ms. Allocated memory is still 202.4 MB. Free memory was 177.6 MB in the beginning and 153.3 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4052.71 ms. Allocated memory was 202.4 MB in the beginning and 283.1 MB in the end (delta: 80.7 MB). Free memory was 152.7 MB in the beginning and 168.4 MB in the end (delta: -15.7 MB). Peak memory consumption was 65.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] struct slot *tmp_slot; [L41] int used_tmp_slot = 0; [L42] int freed_tmp_slot = 1; [L136] CALL ebda_rsrc_controller() [L73] struct hotplug_slot *hp_slot_ptr; [L75] struct bus_info *bus_info_ptr1; [L76] int rc; [L78] CALL, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) [L47] EXPR, FCALL calloc(1, size) [L47] return calloc(1, size); [L78] RET, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) [L78] hp_slot_ptr = kzalloc(sizeof(*hp_slot_ptr), 1) [L79] COND FALSE !(!hp_slot_ptr) [L83] hp_slot_ptr->b = 5 [L85] CALL, EXPR kzalloc(sizeof(*tmp_slot), 1) [L47] EXPR, FCALL calloc(1, size) [L47] return calloc(1, size); [L85] RET, EXPR kzalloc(sizeof(*tmp_slot), 1) [L85] tmp_slot = kzalloc(sizeof(*tmp_slot), 1) [L87] COND FALSE !(!tmp_slot) [L92] used_tmp_slot = 0 [L93] freed_tmp_slot = 0 [L95] tmp_slot->a = 2 [L96] tmp_slot->b = 3 [L98] CALL, EXPR ibmphp_find_same_bus_num() [L56] COND TRUE __VERIFIER_nondet_int() [L57] return 0; [L98] RET, EXPR ibmphp_find_same_bus_num() [L98] bus_info_ptr1 = ibmphp_find_same_bus_num() [L99] COND TRUE !bus_info_ptr1 [L100] rc = -3 [L127] EXPR hp_slot_ptr->private [L127] CALL kfree(hp_slot_ptr->private) [L50] COND FALSE !(p!=0 && p==tmp_slot) [L127] RET kfree(hp_slot_ptr->private) [L132] return rc; [L136] RET ebda_rsrc_controller() [L137] COND TRUE !used_tmp_slot [L138] (freed_tmp_slot) ? (0) : __blast_assert () [L138] CALL __blast_assert () [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.9s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 174 SDtfs, 206 SDslu, 436 SDs, 0 SdLazy, 521 SolverSat, 143 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 14464 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...