/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:50:18,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:50:18,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:50:18,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:50:18,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:50:18,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:50:18,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:50:18,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:50:18,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:50:18,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:50:18,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:50:18,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:50:18,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:50:18,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:50:18,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:50:18,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:50:18,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:50:18,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:50:18,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:50:18,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:50:18,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:50:18,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:50:18,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:50:18,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:50:18,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:50:18,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:50:18,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:50:18,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:50:18,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:50:18,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:50:18,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:50:18,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:50:18,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:50:18,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:50:18,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:50:18,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:50:18,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:50:18,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:50:18,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:50:18,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:50:18,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:50:18,969 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 [2020-09-25 02:50:18,996 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:50:18,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:50:18,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:50:18,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:50:18,998 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:50:18,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:50:18,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:50:18,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:50:18,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:50:18,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:50:19,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:50:19,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:50:19,000 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:50:19,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:50:19,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:50:19,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:50:19,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:50:19,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:50:19,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:50:19,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:50:19,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:50:19,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:50:19,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:50:19,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:50:19,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:50:19,003 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:50:19,003 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 02:50:19,003 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 02:50:19,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:50:19,601 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:50:19,605 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:50:19,607 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:50:19,608 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:50:19,610 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-25 02:50:19,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a38785d8a/2c7439403ac34040818be9a131f8c81c/FLAGd84237cff [2020-09-25 02:50:20,674 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:50:20,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-25 02:50:20,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a38785d8a/2c7439403ac34040818be9a131f8c81c/FLAGd84237cff [2020-09-25 02:50:21,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a38785d8a/2c7439403ac34040818be9a131f8c81c [2020-09-25 02:50:21,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:50:21,097 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:50:21,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:50:21,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:50:21,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:50:21,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:50:21" (1/1) ... [2020-09-25 02:50:21,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e077697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:50:21, skipping insertion in model container [2020-09-25 02:50:21,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:50:21" (1/1) ... [2020-09-25 02:50:21,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:50:21,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:50:22,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:50:22,761 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:50:23,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:50:23,144 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:50:23,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:50:23 WrapperNode [2020-09-25 02:50:23,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:50:23,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:50:23,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:50:23,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:50:23,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:50:23" (1/1) ... [2020-09-25 02:50:23,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:50:23" (1/1) ... [2020-09-25 02:50:23,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:50:23" (1/1) ... [2020-09-25 02:50:23,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:50:23" (1/1) ... [2020-09-25 02:50:23,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:50:23" (1/1) ... [2020-09-25 02:50:23,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:50:23" (1/1) ... [2020-09-25 02:50:23,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:50:23" (1/1) ... [2020-09-25 02:50:23,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:50:23,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:50:23,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:50:23,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:50:23,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:50:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:50:23,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:50:23,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:50:23,551 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2020-09-25 02:50:23,551 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2020-09-25 02:50:23,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-09-25 02:50:23,552 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2020-09-25 02:50:23,553 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2020-09-25 02:50:23,554 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-25 02:50:23,554 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-25 02:50:23,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-25 02:50:23,555 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-25 02:50:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-25 02:50:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 02:50:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 02:50:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 02:50:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-09-25 02:50:23,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-09-25 02:50:23,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 02:50:23,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 02:50:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 02:50:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-09-25 02:50:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-25 02:50:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2020-09-25 02:50:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2020-09-25 02:50:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2020-09-25 02:50:23,561 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2020-09-25 02:50:23,561 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2020-09-25 02:50:23,561 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2020-09-25 02:50:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2020-09-25 02:50:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2020-09-25 02:50:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2020-09-25 02:50:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2020-09-25 02:50:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2020-09-25 02:50:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-09-25 02:50:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-09-25 02:50:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-09-25 02:50:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-09-25 02:50:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-09-25 02:50:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:50:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_5 [2020-09-25 02:50:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_6 [2020-09-25 02:50:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_7 [2020-09-25 02:50:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 02:50:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 02:50:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 02:50:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 02:50:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 02:50:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-09-25 02:50:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-09-25 02:50:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-09-25 02:50:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-09-25 02:50:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-09-25 02:50:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 02:50:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-25 02:50:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-25 02:50:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-25 02:50:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2020-09-25 02:50:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2020-09-25 02:50:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-09-25 02:50:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-09-25 02:50:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-09-25 02:50:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-09-25 02:50:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 02:50:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-25 02:50:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2020-09-25 02:50:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2020-09-25 02:50:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-09-25 02:50:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-09-25 02:50:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-09-25 02:50:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 02:50:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 02:50:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 02:50:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-25 02:50:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:50:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-25 02:50:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-25 02:50:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 02:50:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-25 02:50:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-25 02:50:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-09-25 02:50:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-09-25 02:50:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-09-25 02:50:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-09-25 02:50:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-09-25 02:50:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2020-09-25 02:50:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-25 02:50:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2020-09-25 02:50:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-25 02:50:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-25 02:50:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 02:50:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 02:50:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-25 02:50:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-25 02:50:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 02:50:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-25 02:50:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:50:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 02:50:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:50:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 02:50:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:50:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 02:50:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:50:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 02:50:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-09-25 02:50:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-09-25 02:50:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 02:50:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 02:50:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 02:50:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 02:50:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-09-25 02:50:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-09-25 02:50:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-09-25 02:50:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-09-25 02:50:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-09-25 02:50:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-09-25 02:50:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-09-25 02:50:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_5 [2020-09-25 02:50:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-09-25 02:50:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_6 [2020-09-25 02:50:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_7 [2020-09-25 02:50:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-09-25 02:50:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-09-25 02:50:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-25 02:50:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-25 02:50:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-09-25 02:50:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-09-25 02:50:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-09-25 02:50:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2020-09-25 02:50:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2020-09-25 02:50:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2020-09-25 02:50:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2020-09-25 02:50:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2020-09-25 02:50:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2020-09-25 02:50:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2020-09-25 02:50:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2020-09-25 02:50:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2020-09-25 02:50:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2020-09-25 02:50:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:50:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:50:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:50:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:50:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:50:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:50:23,595 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2020-09-25 02:50:23,596 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2020-09-25 02:50:23,603 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2020-09-25 02:50:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 02:50:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 02:50:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:50:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 02:50:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 02:50:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 02:50:23,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 02:50:23,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 02:50:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-09-25 02:50:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-09-25 02:50:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-09-25 02:50:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-09-25 02:50:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-09-25 02:50:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:50:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:50:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:50:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:50:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-25 02:50:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-25 02:50:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-25 02:50:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-25 02:50:24,575 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 02:50:24,581 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-09-25 02:50:26,157 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:50:26,158 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 02:50:26,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:50:26 BoogieIcfgContainer [2020-09-25 02:50:26,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:50:26,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:50:26,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:50:26,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:50:26,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:50:21" (1/3) ... [2020-09-25 02:50:26,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485125af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:50:26, skipping insertion in model container [2020-09-25 02:50:26,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:50:23" (2/3) ... [2020-09-25 02:50:26,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485125af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:50:26, skipping insertion in model container [2020-09-25 02:50:26,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:50:26" (3/3) ... [2020-09-25 02:50:26,184 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-25 02:50:26,197 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:50:26,209 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:50:26,234 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:50:26,278 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:50:26,279 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:50:26,279 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:50:26,279 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:50:26,279 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:50:26,279 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:50:26,279 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:50:26,279 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:50:26,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-09-25 02:50:26,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-09-25 02:50:26,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:50:26,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:50:26,360 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:50:26,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:50:26,371 INFO L82 PathProgramCache]: Analyzing trace with hash 462327911, now seen corresponding path program 1 times [2020-09-25 02:50:26,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:50:26,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254190755] [2020-09-25 02:50:26,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:50:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:27,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:28,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:30,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:30,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-09-25 02:50:30,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:50:30,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3211 [2020-09-25 02:50:30,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:30,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:50:30,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 278 [2020-09-25 02:50:30,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:50:30,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:50:32,429 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-25 02:50:32,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:50:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:32,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:33,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:33,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-25 02:50:33,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:33,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-09-25 02:50:33,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:33,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:33,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:33,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-25 02:50:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:33,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:33,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:33,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:50:33,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:33,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 02:50:33,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:33,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:33,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:33,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2020-09-25 02:50:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:33,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:33,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:33,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:50:33,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:33,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 02:50:33,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:33,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:33,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:50:33,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:33,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:33,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:50:33,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1254190755] [2020-09-25 02:50:33,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:50:33,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:50:33,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930577341] [2020-09-25 02:50:33,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:50:33,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:50:33,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:50:33,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:50:33,687 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 5 states. [2020-09-25 02:50:36,997 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 516 [2020-09-25 02:50:51,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:50:51,063 INFO L93 Difference]: Finished difference Result 3046 states and 3696 transitions. [2020-09-25 02:50:51,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 02:50:51,065 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 298 [2020-09-25 02:50:51,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:50:51,101 INFO L225 Difference]: With dead ends: 3046 [2020-09-25 02:50:51,101 INFO L226 Difference]: Without dead ends: 1945 [2020-09-25 02:50:51,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:50:51,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2020-09-25 02:50:51,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1458. [2020-09-25 02:50:51,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1458 states. [2020-09-25 02:50:51,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1682 transitions. [2020-09-25 02:50:51,392 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1682 transitions. Word has length 298 [2020-09-25 02:50:51,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:50:51,394 INFO L479 AbstractCegarLoop]: Abstraction has 1458 states and 1682 transitions. [2020-09-25 02:50:51,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:50:51,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1682 transitions. [2020-09-25 02:50:51,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-09-25 02:50:51,403 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:50:51,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:50:51,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:50:51,404 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:50:51,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:50:51,405 INFO L82 PathProgramCache]: Analyzing trace with hash -95169640, now seen corresponding path program 1 times [2020-09-25 02:50:51,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:50:51,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957831443] [2020-09-25 02:50:51,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:50:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:51,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:52,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:53,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:53,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:54,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:56,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:56,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-09-25 02:50:56,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:50:56,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5209 [2020-09-25 02:50:56,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:50:56,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-09-25 02:50:56,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:50:56,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:50:58,465 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-25 02:50:58,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:50:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:58,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:58,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:58,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-25 02:50:58,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:58,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 478 [2020-09-25 02:50:58,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:58,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:58,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:58,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:58,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:59,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-25 02:50:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:59,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:59,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:59,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:50:59,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:59,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:50:59,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:59,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:59,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2020-09-25 02:50:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:59,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:59,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:59,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:59,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 02:50:59,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:50:59,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-09-25 02:50:59,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:59,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:50:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 02:50:59,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:50:59,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:59,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:50:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:59,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:59,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:59,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:59,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 02:50:59,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:50:59,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-25 02:50:59,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:59,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:50:59,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 02:50:59,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:50:59,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:51:00,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:51:00,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957831443] [2020-09-25 02:51:00,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:51:00,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:51:00,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513979346] [2020-09-25 02:51:00,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:51:00,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:51:00,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:51:00,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:51:00,460 INFO L87 Difference]: Start difference. First operand 1458 states and 1682 transitions. Second operand 6 states. [2020-09-25 02:51:01,986 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 517