/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-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-eb0fd7c [2020-09-21 12:03:38,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:03:38,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:03:38,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:03:38,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:03:38,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:03:38,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:03:38,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:03:38,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:03:38,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:03:38,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:03:38,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:03:38,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:03:38,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:03:38,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:03:38,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:03:38,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:03:38,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:03:38,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:03:38,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:03:38,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:03:38,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:03:38,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:03:38,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:03:38,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:03:38,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:03:38,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:03:38,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:03:38,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:03:38,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:03:38,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:03:38,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:03:38,950 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:03:38,951 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:03:38,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:03:38,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:03:38,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:03:38,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:03:38,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:03:38,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:03:38,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:03:38,957 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 [2020-09-21 12:03:38,990 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:03:38,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:03:38,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:03:38,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:03:38,993 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:03:38,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:03:38,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:03:38,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:03:38,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:03:38,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:03:38,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:03:38,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:03:38,994 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:03:38,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:03:38,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:03:38,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:03:38,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:03:38,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:03:38,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:03:38,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:03:38,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:03:38,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:03:38,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:03:38,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:03:38,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:03:38,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:03:38,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-21 12:03:38,998 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 12:03:39,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:03:39,456 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:03:39,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:03:39,463 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:03:39,463 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:03:39,465 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-21 12:03:39,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11479421d/33caad0c44f542adb22e083cbfa463a1/FLAG58cc7815f [2020-09-21 12:03:40,413 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:03:40,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-21 12:03:40,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11479421d/33caad0c44f542adb22e083cbfa463a1/FLAG58cc7815f [2020-09-21 12:03:40,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11479421d/33caad0c44f542adb22e083cbfa463a1 [2020-09-21 12:03:40,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:03:40,985 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:03:40,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:03:40,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:03:40,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:03:40,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:03:40" (1/1) ... [2020-09-21 12:03:40,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0c700e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:40, skipping insertion in model container [2020-09-21 12:03:40,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:03:40" (1/1) ... [2020-09-21 12:03:41,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:03:41,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:03:42,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:03:42,827 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:03:43,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:03:43,187 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:03:43,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:43 WrapperNode [2020-09-21 12:03:43,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:03:43,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:03:43,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:03:43,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:03:43,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:43" (1/1) ... [2020-09-21 12:03:43,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:43" (1/1) ... [2020-09-21 12:03:43,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:43" (1/1) ... [2020-09-21 12:03:43,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:43" (1/1) ... [2020-09-21 12:03:43,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:43" (1/1) ... [2020-09-21 12:03:43,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:43" (1/1) ... [2020-09-21 12:03:43,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:43" (1/1) ... [2020-09-21 12:03:43,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:03:43,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:03:43,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:03:43,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:03:43,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:03:43,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:03:43,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:03:43,549 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2020-09-21 12:03:43,549 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2020-09-21 12:03:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-09-21 12:03:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2020-09-21 12:03:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2020-09-21 12:03:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-21 12:03:43,551 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-21 12:03:43,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-21 12:03:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-21 12:03:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-21 12:03:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 12:03:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-21 12:03:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-21 12:03:43,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-09-21 12:03:43,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-09-21 12:03:43,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-21 12:03:43,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-21 12:03:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-21 12:03:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-09-21 12:03:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-21 12:03:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2020-09-21 12:03:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2020-09-21 12:03:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2020-09-21 12:03:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2020-09-21 12:03:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2020-09-21 12:03:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2020-09-21 12:03:43,556 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2020-09-21 12:03:43,556 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2020-09-21 12:03:43,556 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2020-09-21 12:03:43,556 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2020-09-21 12:03:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2020-09-21 12:03:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-09-21 12:03:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-09-21 12:03:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-09-21 12:03:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-09-21 12:03:43,558 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-09-21 12:03:43,558 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:03:43,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_5 [2020-09-21 12:03:43,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_6 [2020-09-21 12:03:43,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_7 [2020-09-21 12:03:43,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-21 12:03:43,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-21 12:03:43,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-21 12:03:43,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-21 12:03:43,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-21 12:03:43,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-09-21 12:03:43,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-09-21 12:03:43,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-09-21 12:03:43,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-09-21 12:03:43,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-09-21 12:03:43,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-21 12:03:43,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-21 12:03:43,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-21 12:03:43,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-21 12:03:43,561 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2020-09-21 12:03:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2020-09-21 12:03:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-09-21 12:03:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-09-21 12:03:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-09-21 12:03:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-09-21 12:03:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-21 12:03:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-21 12:03:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2020-09-21 12:03:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2020-09-21 12:03:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-09-21 12:03:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-09-21 12:03:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-09-21 12:03:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-21 12:03:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-21 12:03:43,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-21 12:03:43,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-21 12:03:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:03:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-21 12:03:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-21 12:03:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-21 12:03:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-21 12:03:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-21 12:03:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-09-21 12:03:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-09-21 12:03:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-09-21 12:03:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-09-21 12:03:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-09-21 12:03:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2020-09-21 12:03:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-21 12:03:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2020-09-21 12:03:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-21 12:03:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-21 12:03:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-21 12:03:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-21 12:03:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-21 12:03:43,569 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-21 12:03:43,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-21 12:03:43,569 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-21 12:03:43,569 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:03:43,569 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-21 12:03:43,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:03:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-21 12:03:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 12:03:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 12:03:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:03:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-21 12:03:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-09-21 12:03:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-09-21 12:03:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-21 12:03:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-21 12:03:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-21 12:03:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-21 12:03:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-09-21 12:03:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-09-21 12:03:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-09-21 12:03:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-09-21 12:03:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-09-21 12:03:43,573 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-09-21 12:03:43,573 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-09-21 12:03:43,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_5 [2020-09-21 12:03:43,573 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-09-21 12:03:43,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_6 [2020-09-21 12:03:43,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_7 [2020-09-21 12:03:43,574 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-09-21 12:03:43,574 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-09-21 12:03:43,574 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-21 12:03:43,574 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-21 12:03:43,574 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-09-21 12:03:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-09-21 12:03:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-09-21 12:03:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2020-09-21 12:03:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2020-09-21 12:03:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2020-09-21 12:03:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2020-09-21 12:03:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2020-09-21 12:03:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2020-09-21 12:03:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2020-09-21 12:03:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2020-09-21 12:03:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2020-09-21 12:03:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2020-09-21 12:03:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:03:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:03:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:03:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:03:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:03:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:03:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2020-09-21 12:03:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2020-09-21 12:03:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2020-09-21 12:03:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-21 12:03:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-21 12:03:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:03:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-21 12:03:43,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-21 12:03:43,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-21 12:03:43,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-21 12:03:43,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-21 12:03:43,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-09-21 12:03:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-09-21 12:03:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-09-21 12:03:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-09-21 12:03:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-09-21 12:03:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:03:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:03:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:03:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:03:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-21 12:03:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-21 12:03:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-21 12:03:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-21 12:03:44,478 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-21 12:03:44,492 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-09-21 12:03:47,388 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:03:47,389 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 12:03:47,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:03:47 BoogieIcfgContainer [2020-09-21 12:03:47,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:03:47,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:03:47,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:03:47,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:03:47,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:03:40" (1/3) ... [2020-09-21 12:03:47,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a49e208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:03:47, skipping insertion in model container [2020-09-21 12:03:47,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:03:43" (2/3) ... [2020-09-21 12:03:47,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a49e208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:03:47, skipping insertion in model container [2020-09-21 12:03:47,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:03:47" (3/3) ... [2020-09-21 12:03:47,407 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-21 12:03:47,418 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:03:47,429 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:03:47,452 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:03:47,485 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:03:47,486 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:03:47,486 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:03:47,486 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:03:47,486 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:03:47,486 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:03:47,487 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:03:47,487 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:03:47,523 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states. [2020-09-21 12:03:47,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-21 12:03:47,534 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:03:47,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:03:47,536 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:03:47,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:03:47,544 INFO L82 PathProgramCache]: Analyzing trace with hash 915174829, now seen corresponding path program 1 times [2020-09-21 12:03:47,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:03:47,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1877516895] [2020-09-21 12:03:47,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:03:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:48,127 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:48,128 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:48,128 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:48,128 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:48,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:03:48,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:48,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 12:03:48,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:48,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:03:48,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:03:48,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:03:48,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:03:50,120 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-21 12:03:50,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:03:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:50,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:50,152 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:50,152 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:50,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:50,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:50,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:50,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:50,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:50,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:50,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:50,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:50,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:50,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:03:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:50,346 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:50,346 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:50,346 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:50,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:50,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:03:50,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:50,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:03:50,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:50,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:50,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:50,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:50,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:50,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:03:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:50,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:50,402 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:50,402 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:50,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:50,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:03:50,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:50,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:50,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:50,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:50,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:03:50,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:50,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:50,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:03:50,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1877516895] [2020-09-21 12:03:50,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:03:50,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:03:50,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990464488] [2020-09-21 12:03:50,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:03:50,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:03:50,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:03:50,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:03:50,475 INFO L87 Difference]: Start difference. First operand 599 states. Second operand 5 states. [2020-09-21 12:03:52,979 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 516 [2020-09-21 12:04:05,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:04:05,031 INFO L93 Difference]: Finished difference Result 1404 states and 2054 transitions. [2020-09-21 12:04:05,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:04:05,034 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-09-21 12:04:05,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:04:05,065 INFO L225 Difference]: With dead ends: 1404 [2020-09-21 12:04:05,065 INFO L226 Difference]: Without dead ends: 854 [2020-09-21 12:04:05,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:04:05,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2020-09-21 12:04:05,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 590. [2020-09-21 12:04:05,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-09-21 12:04:05,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 814 transitions. [2020-09-21 12:04:05,342 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 814 transitions. Word has length 26 [2020-09-21 12:04:05,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:04:05,342 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 814 transitions. [2020-09-21 12:04:05,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:04:05,342 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 814 transitions. [2020-09-21 12:04:05,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-21 12:04:05,346 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:04:05,346 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] [2020-09-21 12:04:05,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:04:05,347 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:04:05,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:04:05,347 INFO L82 PathProgramCache]: Analyzing trace with hash 568046743, now seen corresponding path program 1 times [2020-09-21 12:04:05,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:04:05,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001446443] [2020-09-21 12:04:05,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:04:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:04:06,091 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:04:06,092 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:04:06,092 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:04:06,092 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:04:06,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:04:06,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:04:06,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 590 [2020-09-21 12:04:06,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:04:06,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:04:06,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:04:06,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:04:06,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:04:07,843 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-21 12:04:07,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:04:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:04:08,176 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:04:08,177 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:04:08,177 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:04:08,178 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:04:08,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:04:08,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:04:08,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-21 12:04:08,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:04:08,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:04:08,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:04:08,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:04:08,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:04:08,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:04:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:04:08,363 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:04:08,363 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:04:08,363 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:04:08,364 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:04:08,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:04:08,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:04:08,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:04:08,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:04:08,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:04:08,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:04:08,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:04:08,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 12:04:08,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 12:04:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:04:08,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:04:08,505 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:04:08,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:04:08,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:04:08,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 12:04:08,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:04:08,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:04:08,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:04:08,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:04:08,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:04:08,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:04:08,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:04:08,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:04:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:04:08,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:04:08,666 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:04:08,667 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:04:08,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:04:08,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 12:04:08,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:04:08,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:04:08,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:04:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:04:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:04:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:04:08,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:04:08,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:04:08,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1001446443] [2020-09-21 12:04:08,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:04:08,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:04:08,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344608987] [2020-09-21 12:04:08,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:04:08,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:04:08,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:04:08,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:04:08,752 INFO L87 Difference]: Start difference. First operand 590 states and 814 transitions. Second operand 7 states. [2020-09-21 12:04:10,127 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 517 [2020-09-21 12:04:15,971 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification that was a NOOP. DAG size: 519 [2020-09-21 12:04:26,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:04:26,953 INFO L93 Difference]: Finished difference Result 1298 states and 1814 transitions. [2020-09-21 12:04:26,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:04:26,953 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-21 12:04:26,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:04:26,961 INFO L225 Difference]: With dead ends: 1298 [2020-09-21 12:04:26,962 INFO L226 Difference]: Without dead ends: 718 [2020-09-21 12:04:26,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:04:26,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2020-09-21 12:04:27,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 592. [2020-09-21 12:04:27,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-21 12:04:27,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 814 transitions. [2020-09-21 12:04:27,122 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 814 transitions. Word has length 38 [2020-09-21 12:04:27,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:04:27,122 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 814 transitions. [2020-09-21 12:04:27,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:04:27,123 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 814 transitions. [2020-09-21 12:04:27,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-21 12:04:27,124 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:04:27,125 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:04:27,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:04:27,125 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:04:27,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:04:27,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1713732304, now seen corresponding path program 1 times [2020-09-21 12:04:27,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:04:27,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1149551090] [2020-09-21 12:04:27,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:04:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:04:27,509 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:04:27,509 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:04:27,509 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:04:27,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:04:27,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-21 12:04:27,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:04:27,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-21 12:04:27,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:04:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:04:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:04:27,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-21 12:04:27,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:04:29,327 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-21 12:04:29,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:04:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:04:29,530 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:04:29,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:04:29,531 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:04:29,531 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:04:29,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:04:29,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:04:29,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-21 12:04:29,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:04:29,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:04:29,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:04:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:04:29,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:04:29,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:04:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:04:29,641 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:04:29,641 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:04:29,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:04:29,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:04:29,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:04:29,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:04:29,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:04:29,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:04:29,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:04:29,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:04:29,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:04:29,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:04:29,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 12:04:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:04:29,747 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:04:29,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:04:29,748 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:04:29,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:04:29,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 12:04:29,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:04:29,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:04:29,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:04:29,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:04:29,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 12:04:29,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:04:29,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:04:29,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:04:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:04:29,953 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:04:29,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:04:29,954 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:04:29,954 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:04:29,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:04:29,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:04:29,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:04:29,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:04:29,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:04:29,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:04:29,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 12:04:29,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:04:30,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-21 12:04:30,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1149551090] [2020-09-21 12:04:30,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:04:30,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:04:30,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003263785] [2020-09-21 12:04:30,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:04:30,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:04:30,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:04:30,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:04:30,040 INFO L87 Difference]: Start difference. First operand 592 states and 814 transitions. Second operand 7 states. [2020-09-21 12:04:31,568 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 517 [2020-09-21 12:04:35,875 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 519