/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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:02:26,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:02:26,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:02:26,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:02:26,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:02:26,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:02:26,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:02:26,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:02:26,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:02:26,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:02:26,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:02:26,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:02:26,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:02:26,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:02:26,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:02:26,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:02:26,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:02:26,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:02:26,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:02:26,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:02:26,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:02:26,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:02:26,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:02:26,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:02:26,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:02:26,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:02:26,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:02:26,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:02:26,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:02:26,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:02:26,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:02:26,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:02:26,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:02:26,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:02:26,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:02:26,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:02:26,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:02:26,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:02:26,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:02:26,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:02:26,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:02:26,989 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 12:02:27,043 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:02:27,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:02:27,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:02:27,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:02:27,047 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:02:27,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:02:27,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:02:27,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:02:27,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:02:27,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:02:27,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:02:27,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:02:27,049 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:02:27,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:02:27,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:02:27,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:02:27,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:02:27,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:02:27,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:02:27,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:02:27,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:02:27,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:02:27,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:02:27,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:02:27,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:02:27,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:02:27,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-21 12:02:27,053 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 12:02:27,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:02:27,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:02:27,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:02:27,564 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:02:27,564 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:02:27,565 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-21 12:02:27,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee05e969d/60c9d323654f4b119cb8defdbce77449/FLAG5dc0bfc01 [2020-09-21 12:02:28,521 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:02:28,523 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-21 12:02:28,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee05e969d/60c9d323654f4b119cb8defdbce77449/FLAG5dc0bfc01 [2020-09-21 12:02:28,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee05e969d/60c9d323654f4b119cb8defdbce77449 [2020-09-21 12:02:29,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:02:29,013 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:02:29,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:02:29,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:02:29,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:02:29,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:02:28" (1/1) ... [2020-09-21 12:02:29,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbdf966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:02:29, skipping insertion in model container [2020-09-21 12:02:29,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:02:28" (1/1) ... [2020-09-21 12:02:29,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:02:29,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:02:30,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:02:30,636 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:02:30,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:02:30,898 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:02:30,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:02:30 WrapperNode [2020-09-21 12:02:30,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:02:30,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:02:30,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:02:30,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:02:30,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:02:30" (1/1) ... [2020-09-21 12:02:30,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:02:30" (1/1) ... [2020-09-21 12:02:30,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:02:30" (1/1) ... [2020-09-21 12:02:30,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:02:30" (1/1) ... [2020-09-21 12:02:31,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:02:30" (1/1) ... [2020-09-21 12:02:31,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:02:30" (1/1) ... [2020-09-21 12:02:31,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:02:30" (1/1) ... [2020-09-21 12:02:31,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:02:31,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:02:31,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:02:31,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:02:31,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:02:30" (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 12:02:31,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:02:31,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:02:31,274 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2020-09-21 12:02:31,275 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2020-09-21 12:02:31,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-09-21 12:02:31,275 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2020-09-21 12:02:31,276 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2020-09-21 12:02:31,276 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-21 12:02:31,276 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-21 12:02:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-21 12:02:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-21 12:02:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-21 12:02:31,278 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 12:02:31,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-21 12:02:31,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-21 12:02:31,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-21 12:02:31,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-21 12:02:31,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-21 12:02:31,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-21 12:02:31,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-21 12:02:31,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-21 12:02:31,280 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-09-21 12:02:31,280 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-21 12:02:31,280 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2020-09-21 12:02:31,281 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2020-09-21 12:02:31,281 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2020-09-21 12:02:31,281 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2020-09-21 12:02:31,282 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2020-09-21 12:02:31,282 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2020-09-21 12:02:31,282 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2020-09-21 12:02:31,282 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2020-09-21 12:02:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2020-09-21 12:02:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2020-09-21 12:02:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2020-09-21 12:02:31,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-09-21 12:02:31,284 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-09-21 12:02:31,284 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-09-21 12:02:31,284 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-09-21 12:02:31,285 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-09-21 12:02:31,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:02:31,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-21 12:02:31,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-21 12:02:31,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-21 12:02:31,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-21 12:02:31,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-21 12:02:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_12 [2020-09-21 12:02:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_13 [2020-09-21 12:02:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_14 [2020-09-21 12:02:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-21 12:02:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-21 12:02:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-21 12:02:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-21 12:02:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-21 12:02:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-21 12:02:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-21 12:02:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-21 12:02:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-21 12:02:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-21 12:02:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-21 12:02:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-21 12:02:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-21 12:02:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-21 12:02:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-21 12:02:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-21 12:02:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-21 12:02:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-21 12:02:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-21 12:02:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-21 12:02:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2020-09-21 12:02:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2020-09-21 12:02:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-09-21 12:02:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-09-21 12:02:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-09-21 12:02:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-09-21 12:02:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-21 12:02:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2020-09-21 12:02:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2020-09-21 12:02:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-09-21 12:02:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-09-21 12:02:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-09-21 12:02:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-21 12:02:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-21 12:02:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-21 12:02:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:02:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-21 12:02:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-21 12:02:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-21 12:02:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-21 12:02:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-09-21 12:02:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-09-21 12:02:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-09-21 12:02:31,299 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-09-21 12:02:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-21 12:02:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-09-21 12:02:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2020-09-21 12:02:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-21 12:02:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2020-09-21 12:02:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-21 12:02:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-21 12:02:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-21 12:02:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-21 12:02:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-21 12:02:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-21 12:02:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-21 12:02:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-21 12:02:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-21 12:02:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-21 12:02:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-21 12:02:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-21 12:02:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-21 12:02:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-21 12:02:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:02:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-21 12:02:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:02:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-21 12:02:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 12:02:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 12:02:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:02:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-21 12:02:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-21 12:02:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-21 12:02:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-21 12:02:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-21 12:02:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-21 12:02:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-09-21 12:02:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-09-21 12:02:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-09-21 12:02:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-09-21 12:02:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-09-21 12:02:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-09-21 12:02:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-09-21 12:02:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_12 [2020-09-21 12:02:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-09-21 12:02:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_13 [2020-09-21 12:02:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_14 [2020-09-21 12:02:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-09-21 12:02:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-09-21 12:02:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-21 12:02:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-21 12:02:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-09-21 12:02:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-09-21 12:02:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-09-21 12:02:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2020-09-21 12:02:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2020-09-21 12:02:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2020-09-21 12:02:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2020-09-21 12:02:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2020-09-21 12:02:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2020-09-21 12:02:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2020-09-21 12:02:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2020-09-21 12:02:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2020-09-21 12:02:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2020-09-21 12:02:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:02:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:02:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:02:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:02:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:02:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:02:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2020-09-21 12:02:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2020-09-21 12:02:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2020-09-21 12:02:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-21 12:02:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-21 12:02:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:02:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-21 12:02:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-21 12:02:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-21 12:02:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-21 12:02:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-21 12:02:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-21 12:02:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-21 12:02:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-21 12:02:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-21 12:02:31,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-21 12:02:31,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-21 12:02:31,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-21 12:02:31,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-21 12:02:31,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-21 12:02:31,322 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:02:31,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:02:31,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:02:31,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:02:31,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-21 12:02:31,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-21 12:02:31,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-21 12:02:31,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-21 12:02:32,218 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-21 12:02:36,308 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:02:36,308 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:02:36,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:02:36 BoogieIcfgContainer [2020-09-21 12:02:36,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:02:36,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:02:36,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:02:36,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:02:36,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:02:28" (1/3) ... [2020-09-21 12:02:36,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ada5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:02:36, skipping insertion in model container [2020-09-21 12:02:36,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:02:30" (2/3) ... [2020-09-21 12:02:36,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ada5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:02:36, skipping insertion in model container [2020-09-21 12:02:36,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:02:36" (3/3) ... [2020-09-21 12:02:36,328 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-21 12:02:36,341 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:02:36,352 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:02:36,375 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:02:36,410 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:02:36,411 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:02:36,411 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:02:36,411 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:02:36,411 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:02:36,411 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:02:36,411 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:02:36,412 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:02:36,449 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states. [2020-09-21 12:02:36,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-21 12:02:36,461 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:02:36,462 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] [2020-09-21 12:02:36,463 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:02:36,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:02:36,471 INFO L82 PathProgramCache]: Analyzing trace with hash -337560205, now seen corresponding path program 1 times [2020-09-21 12:02:36,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:02:36,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278741978] [2020-09-21 12:02:36,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:02:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:02:37,088 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:02:37,088 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:02:37,089 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:02:37,089 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:02:37,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:02:37,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:02:37,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:02:37,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:02:37,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:02:37,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-21 12:02:37,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:02:37,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:02:38,897 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 526 [2020-09-21 12:02:38,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:02:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:02:38,933 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:02:38,933 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:02:38,933 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:02:38,936 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:02:38,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:02:38,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:02:38,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:02:38,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:02:38,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:02:38,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:02:38,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:02:38,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:02:39,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:02:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:02:39,134 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:02:39,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:02:39,135 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:02:39,135 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:02:39,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 12:02:39,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:02:39,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:02:39,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:02:39,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:02:39,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:02:39,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:02:39,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:02:39,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:02:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:02:39,155 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:02:39,156 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:02:39,156 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:02:39,156 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:02:39,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:02:39,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:02:39,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:02:39,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:02:39,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:02:39,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:02:39,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:02:39,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:02:39,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 12:02:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:02:39,199 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:02:39,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:02:39,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:02:39,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:02:39,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:02:39,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:02:39,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:02:39,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:02:39,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:02:39,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:02:39,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:02:39,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:02:39,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 12:02:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:02:39,221 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:02:39,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:02:39,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:02:39,222 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:02:39,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:02:39,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:02:39,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:02:39,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:02:39,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:02:39,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:02:39,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:02:39,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:02:39,257 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 12:02:39,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278741978] [2020-09-21 12:02:39,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:02:39,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:02:39,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579740074] [2020-09-21 12:02:39,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:02:39,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:02:39,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:02:39,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:02:39,289 INFO L87 Difference]: Start difference. First operand 624 states. Second operand 6 states. [2020-09-21 12:02:43,123 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 528 [2020-09-21 12:02:56,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:02:56,071 INFO L93 Difference]: Finished difference Result 1420 states and 2070 transitions. [2020-09-21 12:02:56,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 12:02:56,075 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-09-21 12:02:56,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:02:56,106 INFO L225 Difference]: With dead ends: 1420 [2020-09-21 12:02:56,107 INFO L226 Difference]: Without dead ends: 864 [2020-09-21 12:02:56,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:02:56,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-09-21 12:02:56,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 600. [2020-09-21 12:02:56,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2020-09-21 12:02:56,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 824 transitions. [2020-09-21 12:02:56,375 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 824 transitions. Word has length 36 [2020-09-21 12:02:56,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:02:56,376 INFO L479 AbstractCegarLoop]: Abstraction has 600 states and 824 transitions. [2020-09-21 12:02:56,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:02:56,376 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 824 transitions. [2020-09-21 12:02:56,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-21 12:02:56,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:02:56,380 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] [2020-09-21 12:02:56,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:02:56,381 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:02:56,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:02:56,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1418341137, now seen corresponding path program 1 times [2020-09-21 12:02:56,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:02:56,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687869629] [2020-09-21 12:02:56,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:02:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:02:57,291 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:02:57,291 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:02:57,291 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:02:57,292 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:02:57,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-21 12:02:57,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:02:57,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 730 [2020-09-21 12:02:57,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:02:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:02:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:02:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:02:57,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:02:59,064 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 526 [2020-09-21 12:02:59,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:02:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:02:59,296 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:02:59,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:02:59,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:02:59,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:02:59,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:02:59,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:02:59,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-21 12:02:59,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:02:59,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:02:59,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:02:59,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:02:59,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:02:59,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:02:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:02:59,435 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:02:59,435 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:02:59,435 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:02:59,435 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:02:59,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 12:02:59,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:02:59,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:02:59,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:02:59,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:02:59,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:02:59,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:02:59,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:02:59,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:02:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:02:59,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:02:59,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:02:59,449 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:02:59,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:02:59,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:02:59,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:02:59,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:02:59,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:02:59,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:02:59,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:02:59,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:02:59,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:02:59,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 12:02:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:02:59,563 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:02:59,564 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:02:59,564 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:02:59,564 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:02:59,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 12:02:59,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:02:59,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:02:59,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:02:59,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:02:59,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:02:59,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 12:02:59,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:02:59,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:02:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:02:59,706 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:02:59,706 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:02:59,706 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:02:59,707 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:02:59,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 12:02:59,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:02:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:02:59,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:02:59,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:02:59,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:02:59,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:02:59,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:02:59,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:02:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:02:59,734 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:02:59,735 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:02:59,735 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:02:59,735 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:02:59,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:02:59,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:02:59,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:02:59,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:02:59,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:02:59,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:02:59,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:02:59,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:02:59,767 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 12:02:59,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687869629] [2020-09-21 12:02:59,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:02:59,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:02:59,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139708062] [2020-09-21 12:02:59,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:02:59,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:02:59,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:02:59,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:02:59,771 INFO L87 Difference]: Start difference. First operand 600 states and 824 transitions. Second operand 8 states. [2020-09-21 12:03:01,488 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 529 [2020-09-21 12:03:04,698 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 531 [2020-09-21 12:03:17,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:03:17,123 INFO L93 Difference]: Finished difference Result 1312 states and 1827 transitions. [2020-09-21 12:03:17,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:03:17,124 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2020-09-21 12:03:17,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:03:17,132 INFO L225 Difference]: With dead ends: 1312 [2020-09-21 12:03:17,132 INFO L226 Difference]: Without dead ends: 726 [2020-09-21 12:03:17,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-21 12:03:17,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2020-09-21 12:03:17,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 600. [2020-09-21 12:03:17,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2020-09-21 12:03:17,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 822 transitions. [2020-09-21 12:03:17,264 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 822 transitions. Word has length 48 [2020-09-21 12:03:17,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:03:17,264 INFO L479 AbstractCegarLoop]: Abstraction has 600 states and 822 transitions. [2020-09-21 12:03:17,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:03:17,265 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 822 transitions. [2020-09-21 12:03:17,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-21 12:03:17,267 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:03:17,267 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] [2020-09-21 12:03:17,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:03:17,268 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:03:17,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:03:17,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1356301523, now seen corresponding path program 1 times [2020-09-21 12:03:17,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:03:17,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305471214] [2020-09-21 12:03:17,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:03:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:17,460 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:17,460 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:17,460 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:17,461 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:17,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-21 12:03:17,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:17,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:03:17,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:17,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:03:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-21 12:03:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:03:17,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:19,162 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 526 [2020-09-21 12:03:19,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:03:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:19,184 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:19,184 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:19,184 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:19,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:19,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:19,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:19,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:03:19,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:19,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:19,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:19,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:03:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:19,320 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:19,320 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:19,320 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:19,320 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:19,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 12:03:19,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:19,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:19,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:19,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:19,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:19,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:19,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:19,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:03:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:19,331 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:19,331 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:19,331 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:19,332 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:19,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:19,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:19,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:03:19,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:03:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:19,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:19,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 12:03:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:19,436 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:19,437 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:19,437 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:19,437 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:19,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 12:03:19,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:19,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:03:19,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:19,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:03:19,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:03:19,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:03:19,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:19,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:03:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:19,552 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:19,552 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:19,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:19,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:19,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 12:03:19,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:19,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:03:19,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:03:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:03:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:03:19,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:19,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:03:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:03:19,631 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 12:03:19,631 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 12:03:19,631 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 12:03:19,631 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 12:03:19,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:03:19,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:03:19,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:03:19,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 12:03:19,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:03:19,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:03:19,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:03:19,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:03:19,660 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 12:03:19,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305471214] [2020-09-21 12:03:19,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:03:19,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:03:19,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433079498] [2020-09-21 12:03:19,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:03:19,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:03:19,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:03:19,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:03:19,662 INFO L87 Difference]: Start difference. First operand 600 states and 822 transitions. Second operand 7 states. [2020-09-21 12:03:21,222 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 529