/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-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-block-paride-pt.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 17:42:13,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 17:42:13,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 17:42:13,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 17:42:13,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 17:42:13,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 17:42:13,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 17:42:13,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 17:42:13,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 17:42:13,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 17:42:13,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 17:42:13,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 17:42:13,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 17:42:13,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 17:42:13,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 17:42:13,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 17:42:13,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 17:42:13,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 17:42:13,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 17:42:13,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 17:42:13,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 17:42:13,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 17:42:13,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 17:42:13,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 17:42:13,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 17:42:13,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 17:42:13,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 17:42:13,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 17:42:13,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 17:42:13,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 17:42:13,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 17:42:13,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 17:42:13,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 17:42:13,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 17:42:13,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 17:42:13,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 17:42:13,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 17:42:13,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 17:42:13,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 17:42:13,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 17:42:13,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 17:42:13,762 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-13 17:42:13,797 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 17:42:13,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 17:42:13,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 17:42:13,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 17:42:13,800 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 17:42:13,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 17:42:13,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 17:42:13,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 17:42:13,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 17:42:13,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 17:42:13,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 17:42:13,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 17:42:13,802 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 17:42:13,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 17:42:13,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 17:42:13,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 17:42:13,803 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 17:42:13,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 17:42:13,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 17:42:13,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 17:42:13,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 17:42:13,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 17:42:13,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 17:42:13,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 17:42:13,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 17:42:13,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 17:42:13,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 17:42:13,805 INFO L138 SettingsManager]: * To the following directory=dump/ 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 17:42:14,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 17:42:14,105 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 17:42:14,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 17:42:14,110 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 17:42:14,110 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 17:42:14,111 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-block-paride-pt.ko.cil.out.i [2020-10-13 17:42:14,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/feb27c2f7/b4247faab2b5471998fbfaed66301879/FLAGc9865ac8a [2020-10-13 17:42:14,845 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 17:42:14,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-block-paride-pt.ko.cil.out.i [2020-10-13 17:42:14,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/feb27c2f7/b4247faab2b5471998fbfaed66301879/FLAGc9865ac8a [2020-10-13 17:42:14,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/feb27c2f7/b4247faab2b5471998fbfaed66301879 [2020-10-13 17:42:14,951 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 17:42:14,953 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 17:42:14,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 17:42:14,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 17:42:14,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 17:42:14,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:42:14" (1/1) ... [2020-10-13 17:42:14,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfd413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:42:14, skipping insertion in model container [2020-10-13 17:42:14,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:42:14" (1/1) ... [2020-10-13 17:42:14,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 17:42:15,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 17:42:15,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:42:15,994 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 17:42:16,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:42:16,497 INFO L208 MainTranslator]: Completed translation [2020-10-13 17:42:16,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:42:16 WrapperNode [2020-10-13 17:42:16,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 17:42:16,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 17:42:16,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 17:42:16,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 17:42:16,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:42:16" (1/1) ... [2020-10-13 17:42:16,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:42:16" (1/1) ... [2020-10-13 17:42:16,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:42:16" (1/1) ... [2020-10-13 17:42:16,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:42:16" (1/1) ... [2020-10-13 17:42:16,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:42:16" (1/1) ... [2020-10-13 17:42:16,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:42:16" (1/1) ... [2020-10-13 17:42:16,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:42:16" (1/1) ... [2020-10-13 17:42:16,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 17:42:16,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 17:42:16,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 17:42:16,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 17:42:16,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:42:16" (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 17:42:16,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 17:42:16,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 17:42:16,847 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-13 17:42:16,847 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-13 17:42:16,847 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-13 17:42:16,847 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-13 17:42:16,848 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-13 17:42:16,848 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2020-10-13 17:42:16,848 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2020-10-13 17:42:16,848 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2020-10-13 17:42:16,848 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2020-10-13 17:42:16,849 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 17:42:16,849 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-13 17:42:16,849 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-13 17:42:16,849 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2020-10-13 17:42:16,850 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2020-10-13 17:42:16,850 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2020-10-13 17:42:16,850 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2020-10-13 17:42:16,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2020-10-13 17:42:16,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2020-10-13 17:42:16,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2020-10-13 17:42:16,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2020-10-13 17:42:16,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2020-10-13 17:42:16,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2020-10-13 17:42:16,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2020-10-13 17:42:16,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2020-10-13 17:42:16,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2020-10-13 17:42:16,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2020-10-13 17:42:16,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2020-10-13 17:42:16,853 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_ready_wait [2020-10-13 17:42:16,853 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2020-10-13 17:42:16,853 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2020-10-13 17:42:16,853 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2020-10-13 17:42:16,853 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2020-10-13 17:42:16,854 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_detect [2020-10-13 17:42:16,854 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_open [2020-10-13 17:42:16,854 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_ioctl [2020-10-13 17:42:16,854 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_release [2020-10-13 17:42:16,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_read [2020-10-13 17:42:16,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2020-10-13 17:42:16,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_init [2020-10-13 17:42:16,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_exit [2020-10-13 17:42:16,855 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 17:42:16,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2020-10-13 17:42:16,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-10-13 17:42:16,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-10-13 17:42:16,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-10-13 17:42:16,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-10-13 17:42:16,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-10-13 17:42:16,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 17:42:16,857 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 17:42:16,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 17:42:16,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2020-10-13 17:42:16,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-13 17:42:16,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 17:42:16,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2020-10-13 17:42:16,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2020-10-13 17:42:16,858 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-13 17:42:16,858 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-13 17:42:16,858 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2020-10-13 17:42:16,858 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2020-10-13 17:42:16,859 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2020-10-13 17:42:16,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2020-10-13 17:42:16,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 17:42:16,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2020-10-13 17:42:16,860 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-13 17:42:16,860 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-13 17:42:16,860 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-13 17:42:16,860 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2020-10-13 17:42:16,860 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2020-10-13 17:42:16,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2020-10-13 17:42:16,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2020-10-13 17:42:16,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2020-10-13 17:42:16,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2020-10-13 17:42:16,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2020-10-13 17:42:16,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_regr [2020-10-13 17:42:16,862 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 17:42:16,862 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-13 17:42:16,862 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-13 17:42:16,862 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 17:42:16,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 17:42:16,863 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 17:42:16,863 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-13 17:42:16,863 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-13 17:42:16,863 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-13 17:42:16,863 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-13 17:42:16,864 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-13 17:42:16,864 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-13 17:42:16,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 17:42:16,864 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-13 17:42:16,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 17:42:16,864 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-13 17:42:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2020-10-13 17:42:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-13 17:42:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-13 17:42:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 17:42:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-10-13 17:42:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-10-13 17:42:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-10-13 17:42:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-10-13 17:42:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-10-13 17:42:16,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 17:42:16,867 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2020-10-13 17:42:16,867 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2020-10-13 17:42:16,867 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2020-10-13 17:42:16,867 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2020-10-13 17:42:16,868 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2020-10-13 17:42:16,868 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2020-10-13 17:42:16,868 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-13 17:42:16,868 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 17:42:16,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 17:42:16,868 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 17:42:16,869 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2020-10-13 17:42:16,869 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-13 17:42:16,869 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2020-10-13 17:42:16,869 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2020-10-13 17:42:16,870 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-13 17:42:16,870 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-13 17:42:16,870 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-13 17:42:16,870 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-13 17:42:16,870 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-13 17:42:16,870 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2020-10-13 17:42:16,870 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2020-10-13 17:42:16,871 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_regr [2020-10-13 17:42:16,871 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2020-10-13 17:42:16,871 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2020-10-13 17:42:16,871 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2020-10-13 17:42:16,871 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2020-10-13 17:42:16,872 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2020-10-13 17:42:16,872 INFO L130 BoogieDeclarations]: Found specification of procedure pt_open [2020-10-13 17:42:16,872 INFO L130 BoogieDeclarations]: Found specification of procedure pt_ioctl [2020-10-13 17:42:16,872 INFO L130 BoogieDeclarations]: Found specification of procedure pt_release [2020-10-13 17:42:16,872 INFO L130 BoogieDeclarations]: Found specification of procedure pt_read [2020-10-13 17:42:16,872 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2020-10-13 17:42:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure pt_detect [2020-10-13 17:42:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2020-10-13 17:42:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2020-10-13 17:42:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2020-10-13 17:42:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2020-10-13 17:42:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2020-10-13 17:42:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2020-10-13 17:42:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 17:42:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2020-10-13 17:42:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2020-10-13 17:42:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2020-10-13 17:42:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 17:42:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2020-10-13 17:42:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2020-10-13 17:42:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2020-10-13 17:42:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2020-10-13 17:42:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2020-10-13 17:42:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2020-10-13 17:42:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2020-10-13 17:42:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure pt_ready_wait [2020-10-13 17:42:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2020-10-13 17:42:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2020-10-13 17:42:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 17:42:16,877 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2020-10-13 17:42:16,877 INFO L130 BoogieDeclarations]: Found specification of procedure pt_init [2020-10-13 17:42:16,877 INFO L130 BoogieDeclarations]: Found specification of procedure pt_exit [2020-10-13 17:42:16,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 17:42:16,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2020-10-13 17:42:16,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 17:42:16,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 17:42:16,878 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 17:42:16,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2020-10-13 17:42:16,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2020-10-13 17:42:16,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 17:42:16,879 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 17:42:16,879 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 17:42:16,879 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 17:42:16,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 17:42:16,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 17:42:16,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-13 17:42:16,880 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 17:42:16,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 17:42:16,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 17:42:16,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 17:42:16,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 17:42:24,712 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-13 17:42:24,758 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2020-10-13 17:42:24,758 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2020-10-13 17:42:24,787 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-10-13 17:42:25,155 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-13 17:42:25,155 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-13 17:42:25,179 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false;call ULTIMATE.dealloc(~#mtop~0.base, ~#mtop~0.offset);havoc ~#mtop~0.base, ~#mtop~0.offset; [2020-10-13 17:42:25,180 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-10-13 17:42:25,180 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-13 17:42:25,180 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-10-13 17:42:26,316 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 17:42:26,317 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-13 17:42:26,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:42:26 BoogieIcfgContainer [2020-10-13 17:42:26,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 17:42:26,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 17:42:26,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 17:42:26,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 17:42:26,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:42:14" (1/3) ... [2020-10-13 17:42:26,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8f6fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:42:26, skipping insertion in model container [2020-10-13 17:42:26,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:42:16" (2/3) ... [2020-10-13 17:42:26,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8f6fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:42:26, skipping insertion in model container [2020-10-13 17:42:26,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:42:26" (3/3) ... [2020-10-13 17:42:26,331 INFO L109 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-paride-pt.ko.cil.out.i [2020-10-13 17:42:26,341 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 17:42:26,348 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 17:42:26,360 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 17:42:26,384 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 17:42:26,384 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 17:42:26,385 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 17:42:26,385 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 17:42:26,385 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 17:42:26,385 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 17:42:26,385 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 17:42:26,385 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 17:42:26,420 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states. [2020-10-13 17:42:26,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-13 17:42:26,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:42:26,429 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] [2020-10-13 17:42:26,429 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:42:26,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:42:26,435 INFO L82 PathProgramCache]: Analyzing trace with hash -998779677, now seen corresponding path program 1 times [2020-10-13 17:42:26,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:42:26,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250945116] [2020-10-13 17:42:26,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:42:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:42:27,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:42:27,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:42:28,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:42:28,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 17:42:28,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:42:28,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1543 [2020-10-13 17:42:28,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:42:28,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:42:28,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:42:28,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 17:42:28,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 17:42:29,797 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 433 [2020-10-13 17:42:29,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:42:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:42:29,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:42:30,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:42:30,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:42:30,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:42:30,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-10-13 17:42:30,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:42:30,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:42:30,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:42:30,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:42:30,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:42:30,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:42:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:42:30,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:42:30,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:42:30,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:42:30,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:42:30,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 17:42:30,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:42:30,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:42:30,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:42:30,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:42:30,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 17:42:30,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 17:42:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:42:30,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:42:30,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:42:30,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 17:42:30,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:42:30,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 17:42:30,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:42:30,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:42:30,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 17:42:30,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:42:30,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:42:30,503 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 17:42:30,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250945116] [2020-10-13 17:42:30,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:42:30,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:42:30,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680831468] [2020-10-13 17:42:30,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:42:30,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:42:30,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:42:30,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:42:30,552 INFO L87 Difference]: Start difference. First operand 741 states. Second operand 6 states. [2020-10-13 17:42:36,651 WARN L193 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2020-10-13 17:43:02,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:43:02,539 INFO L93 Difference]: Finished difference Result 1635 states and 2271 transitions. [2020-10-13 17:43:02,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 17:43:02,548 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-13 17:43:02,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:43:02,572 INFO L225 Difference]: With dead ends: 1635 [2020-10-13 17:43:02,573 INFO L226 Difference]: Without dead ends: 908 [2020-10-13 17:43:02,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 17:43:02,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2020-10-13 17:43:02,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 857. [2020-10-13 17:43:02,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2020-10-13 17:43:02,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1148 transitions. [2020-10-13 17:43:02,977 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1148 transitions. Word has length 21 [2020-10-13 17:43:02,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:43:02,978 INFO L479 AbstractCegarLoop]: Abstraction has 857 states and 1148 transitions. [2020-10-13 17:43:02,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:43:02,978 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1148 transitions. [2020-10-13 17:43:02,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 17:43:02,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:43:02,981 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] [2020-10-13 17:43:02,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 17:43:02,982 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:43:02,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:43:02,983 INFO L82 PathProgramCache]: Analyzing trace with hash 721808433, now seen corresponding path program 1 times [2020-10-13 17:43:02,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:43:02,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783490999] [2020-10-13 17:43:02,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:43:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:43:03,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:03,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:04,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:04,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:05,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:07,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:43:07,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 17:43:07,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 17:43:07,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3929 [2020-10-13 17:43:07,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:43:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:43:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 17:43:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:43:07,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:43:08,111 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 433 [2020-10-13 17:43:08,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:43:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:43:08,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:08,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:43:08,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:43:08,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:43:08,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-13 17:43:08,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:43:08,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:43:08,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:43:08,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:43:08,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:43:08,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:43:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:43:08,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:08,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:43:08,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:43:08,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:43:08,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:43:08,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:43:08,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:43:08,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:43:08,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:43:08,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:43:08,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 17:43:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:43:08,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:08,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:08,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:08,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:08,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:43:08,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 17:43:08,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:43:08,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-13 17:43:08,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:43:08,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:43:08,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 17:43:08,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:43:08,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:43:08,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:43:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:43:08,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:08,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:08,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:08,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:43:08,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 17:43:08,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:43:08,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 17:43:08,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:43:08,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:43:08,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:43:08,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:43:08,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:43:08,587 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 17:43:08,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783490999] [2020-10-13 17:43:08,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:43:08,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:43:08,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432903480] [2020-10-13 17:43:08,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:43:08,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:43:08,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:43:08,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:43:08,591 INFO L87 Difference]: Start difference. First operand 857 states and 1148 transitions. Second operand 6 states. [2020-10-13 17:43:15,744 WARN L193 SmtUtils]: Spent 918.00 ms on a formula simplification that was a NOOP. DAG size: 436 [2020-10-13 17:43:42,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:43:42,534 INFO L93 Difference]: Finished difference Result 1738 states and 2338 transitions. [2020-10-13 17:43:42,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 17:43:42,539 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-13 17:43:42,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:43:42,549 INFO L225 Difference]: With dead ends: 1738 [2020-10-13 17:43:42,550 INFO L226 Difference]: Without dead ends: 912 [2020-10-13 17:43:42,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:43:42,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-10-13 17:43:42,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 858. [2020-10-13 17:43:42,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 858 states. [2020-10-13 17:43:42,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1149 transitions. [2020-10-13 17:43:42,948 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1149 transitions. Word has length 30 [2020-10-13 17:43:42,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:43:42,949 INFO L479 AbstractCegarLoop]: Abstraction has 858 states and 1149 transitions. [2020-10-13 17:43:42,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:43:42,949 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1149 transitions. [2020-10-13 17:43:42,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-13 17:43:42,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:43:42,953 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] [2020-10-13 17:43:42,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 17:43:42,954 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:43:42,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:43:42,954 INFO L82 PathProgramCache]: Analyzing trace with hash -2115381202, now seen corresponding path program 1 times [2020-10-13 17:43:42,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:43:42,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [491226944] [2020-10-13 17:43:42,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:43:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:43:43,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:43,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:43,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:47,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:48,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:43:48,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 17:43:48,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:43:48,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5257 [2020-10-13 17:43:48,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:43:48,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:43:48,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-13 17:43:48,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:43:48,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:43:49,317 WARN L193 SmtUtils]: Spent 926.00 ms on a formula simplification that was a NOOP. DAG size: 433 [2020-10-13 17:43:49,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:43:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:43:49,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:49,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:43:49,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:43:49,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:43:49,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-13 17:43:49,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:43:49,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:43:49,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:43:49,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:43:49,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:43:49,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:43:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:43:49,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:49,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:43:49,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:43:49,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:43:49,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 17:43:49,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:43:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:43:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:43:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:43:49,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:43:49,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 17:43:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:43:49,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:49,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:49,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:49,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:50,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:43:50,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 17:43:50,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:43:50,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-13 17:43:50,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:43:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:43:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 17:43:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:43:50,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:43:50,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:43:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:43:50,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:50,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:50,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:50,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:50,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:43:50,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 17:43:50,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:43:50,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-13 17:43:50,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:43:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:43:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:43:50,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 17:43:50,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:43:50,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 17:43:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:43:50,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:43:50,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:43:50,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:43:50,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:43:50,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:43:50,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:43:50,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:43:50,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:43:50,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:43:50,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:43:50,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:43:50,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [491226944] [2020-10-13 17:43:50,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 17:43:50,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 17:43:50,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715106355] [2020-10-13 17:43:50,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 17:43:50,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:43:50,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 17:43:50,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-13 17:43:50,446 INFO L87 Difference]: Start difference. First operand 858 states and 1149 transitions. Second operand 10 states. [2020-10-13 17:43:53,807 WARN L193 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 436 [2020-10-13 17:44:37,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:44:37,371 INFO L93 Difference]: Finished difference Result 1758 states and 2365 transitions. [2020-10-13 17:44:37,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 17:44:37,376 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2020-10-13 17:44:37,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:44:37,383 INFO L225 Difference]: With dead ends: 1758 [2020-10-13 17:44:37,383 INFO L226 Difference]: Without dead ends: 932 [2020-10-13 17:44:37,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:44:37,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2020-10-13 17:44:37,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 872. [2020-10-13 17:44:37,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 872 states. [2020-10-13 17:44:37,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1170 transitions. [2020-10-13 17:44:37,622 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1170 transitions. Word has length 39 [2020-10-13 17:44:37,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:44:37,623 INFO L479 AbstractCegarLoop]: Abstraction has 872 states and 1170 transitions. [2020-10-13 17:44:37,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 17:44:37,624 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1170 transitions. [2020-10-13 17:44:37,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-13 17:44:37,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:44:37,635 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:44:37,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 17:44:37,636 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:44:37,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:44:37,637 INFO L82 PathProgramCache]: Analyzing trace with hash 299047121, now seen corresponding path program 2 times [2020-10-13 17:44:37,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:44:37,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752558639] [2020-10-13 17:44:37,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:44:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:44:37,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:37,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:42,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:42,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:43,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:44:43,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 17:44:43,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:44:43,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5641 [2020-10-13 17:44:43,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:44:43,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:44:43,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-13 17:44:43,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:44:43,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:44:44,370 WARN L193 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 433 [2020-10-13 17:44:44,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:44:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:44:44,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:44,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:44:44,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:44:44,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:44:44,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-13 17:44:44,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:44:44,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:44:44,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:44:44,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:44:44,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:44:44,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:44:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:44:44,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:44,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:44:44,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:44:44,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:44:44,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:44:44,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:44:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:44:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:44:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:44:44,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:44:44,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 17:44:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:44:44,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:44,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:44,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:44,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:45,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:44:45,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-13 17:44:45,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:44:45,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 508 [2020-10-13 17:44:45,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:44:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:44:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-13 17:44:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:44:45,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:44:45,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:44:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:44:45,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:45,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:45,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:45,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:45,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:44:45,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 17:44:45,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:44:45,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-13 17:44:45,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:44:45,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:44:45,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:44:45,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 17:44:45,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:44:45,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 17:44:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:44:45,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:45,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:44:45,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:44:45,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:44:45,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:44:45,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:44:45,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:44:45,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:44:45,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:44:45,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:44:45,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:44:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:44:45,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:44:45,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:44:45,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:44:45,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:44:45,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:44:45,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:44:45,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:44:45,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:44:45,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:44:45,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:44:45,824 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 17:44:45,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1752558639] [2020-10-13 17:44:45,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 17:44:45,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 17:44:45,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673828661] [2020-10-13 17:44:45,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 17:44:45,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:44:45,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 17:44:45,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:44:45,826 INFO L87 Difference]: Start difference. First operand 872 states and 1170 transitions. Second operand 11 states. [2020-10-13 17:45:02,176 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 436 [2020-10-13 17:45:50,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:45:50,251 INFO L93 Difference]: Finished difference Result 1772 states and 2386 transitions. [2020-10-13 17:45:50,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 17:45:50,256 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2020-10-13 17:45:50,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:45:50,262 INFO L225 Difference]: With dead ends: 1772 [2020-10-13 17:45:50,262 INFO L226 Difference]: Without dead ends: 946 [2020-10-13 17:45:50,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-13 17:45:50,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2020-10-13 17:45:50,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 886. [2020-10-13 17:45:50,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2020-10-13 17:45:50,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1191 transitions. [2020-10-13 17:45:50,497 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1191 transitions. Word has length 48 [2020-10-13 17:45:50,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:45:50,498 INFO L479 AbstractCegarLoop]: Abstraction has 886 states and 1191 transitions. [2020-10-13 17:45:50,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 17:45:50,498 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1191 transitions. [2020-10-13 17:45:50,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-13 17:45:50,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:45:50,500 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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 17:45:50,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 17:45:50,501 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:45:50,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:45:50,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1058332558, now seen corresponding path program 3 times [2020-10-13 17:45:50,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:45:50,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785842744] [2020-10-13 17:45:50,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:45:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:45:50,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:50,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:50,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:56,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:45:56,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 17:45:56,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:45:56,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5441 [2020-10-13 17:45:56,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:45:56,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 17:45:56,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 17:45:56,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 17:45:56,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:45:56,976 WARN L193 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 433 [2020-10-13 17:45:56,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:45:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:45:57,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:57,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:45:57,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:45:57,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:45:57,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 17:45:57,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:45:57,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:45:57,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:45:57,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:45:57,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:45:57,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:45:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:45:57,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:57,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:45:57,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:45:57,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:45:57,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:45:57,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:45:57,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:45:57,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:45:57,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:45:57,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:45:57,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 17:45:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:45:57,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:57,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:57,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:57,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:57,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:45:57,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 17:45:57,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:45:57,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 745 [2020-10-13 17:45:57,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:45:57,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:45:57,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-13 17:45:57,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:45:57,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:45:58,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:45:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:45:58,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:58,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:58,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:58,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:58,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:45:58,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 17:45:58,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:45:58,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 441 [2020-10-13 17:45:58,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:45:58,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 17:45:58,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:45:58,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 17:45:58,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:45:58,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 17:45:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:45:58,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:58,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:45:58,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:45:58,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:45:58,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:45:58,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:45:58,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:45:58,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:45:58,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:45:58,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:45:58,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:45:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:45:58,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:58,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:45:58,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:45:58,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:45:58,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:45:58,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:45:58,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:45:58,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:45:58,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:45:58,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:45:58,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 17:45:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:45:58,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:45:58,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:45:58,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:45:58,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:45:58,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:45:58,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:45:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:45:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:45:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:45:58,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:45:58,726 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 17:45:58,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785842744] [2020-10-13 17:45:58,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 17:45:58,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 17:45:58,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796832446] [2020-10-13 17:45:58,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 17:45:58,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:45:58,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 17:45:58,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-13 17:45:58,730 INFO L87 Difference]: Start difference. First operand 886 states and 1191 transitions. Second operand 12 states.