/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options 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-c90d42b [2020-09-24 16:39:25,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:39:25,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:39:25,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:39:25,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:39:25,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:39:25,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:39:25,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:39:25,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:39:25,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:39:25,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:39:25,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:39:25,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:39:25,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:39:25,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:39:25,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:39:25,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:39:25,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:39:25,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:39:25,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:39:25,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:39:25,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:39:25,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:39:25,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:39:25,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:39:25,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:39:25,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:39:25,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:39:25,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:39:25,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:39:25,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:39:25,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:39:25,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:39:25,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:39:25,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:39:25,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:39:25,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:39:25,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:39:25,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:39:25,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:39:25,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:39:25,583 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 [2020-09-24 16:39:25,612 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:39:25,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:39:25,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:39:25,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:39:25,616 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:39:25,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:39:25,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:39:25,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:39:25,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:39:25,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:39:25,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:39:25,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:39:25,618 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:39:25,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:39:25,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:39:25,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:39:25,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:39:25,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:39:25,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:39:25,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:39:25,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:39:25,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:39:25,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:39:25,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:39:25,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:39:25,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:39:25,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 16:39:25,621 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;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; [2020-09-24 16:39:26,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:39:26,136 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:39:26,141 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:39:26,143 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:39:26,143 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:39:26,144 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 16:39:26,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b6104a9a/50db479a6ef74f7e96689e50dc95b5e9/FLAG5f5480e39 [2020-09-24 16:39:27,160 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:39:27,161 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 16:39:27,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b6104a9a/50db479a6ef74f7e96689e50dc95b5e9/FLAG5f5480e39 [2020-09-24 16:39:27,627 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b6104a9a/50db479a6ef74f7e96689e50dc95b5e9 [2020-09-24 16:39:27,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:39:27,647 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:39:27,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:39:27,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:39:27,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:39:27,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:39:27" (1/1) ... [2020-09-24 16:39:27,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a0cc214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:27, skipping insertion in model container [2020-09-24 16:39:27,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:39:27" (1/1) ... [2020-09-24 16:39:27,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:39:27,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:39:29,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:39:29,179 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:39:29,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:39:29,554 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:39:29,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29 WrapperNode [2020-09-24 16:39:29,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:39:29,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:39:29,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:39:29,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:39:29,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (1/1) ... [2020-09-24 16:39:29,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (1/1) ... [2020-09-24 16:39:29,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (1/1) ... [2020-09-24 16:39:29,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (1/1) ... [2020-09-24 16:39:29,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (1/1) ... [2020-09-24 16:39:29,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (1/1) ... [2020-09-24 16:39:29,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (1/1) ... [2020-09-24 16:39:29,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:39:29,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:39:29,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:39:29,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:39:29,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (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 [2020-09-24 16:39:29,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:39:29,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:39:29,889 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2020-09-24 16:39:29,890 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2020-09-24 16:39:29,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-09-24 16:39:29,890 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2020-09-24 16:39:29,891 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2020-09-24 16:39:29,892 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-24 16:39:29,892 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-24 16:39:29,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-24 16:39:29,893 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-24 16:39:29,893 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-24 16:39:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 16:39:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 16:39:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 16:39:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 16:39:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 16:39:29,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 16:39:29,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 16:39:29,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 16:39:29,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 16:39:29,898 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-09-24 16:39:29,898 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-24 16:39:29,898 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2020-09-24 16:39:29,898 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2020-09-24 16:39:29,898 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2020-09-24 16:39:29,899 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2020-09-24 16:39:29,899 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2020-09-24 16:39:29,899 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2020-09-24 16:39:29,899 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2020-09-24 16:39:29,899 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2020-09-24 16:39:29,899 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2020-09-24 16:39:29,900 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2020-09-24 16:39:29,900 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2020-09-24 16:39:29,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-09-24 16:39:29,900 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-09-24 16:39:29,900 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-09-24 16:39:29,901 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-09-24 16:39:29,901 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-09-24 16:39:29,901 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:39:29,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-24 16:39:29,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-24 16:39:29,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-24 16:39:29,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-24 16:39:29,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-24 16:39:29,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_12 [2020-09-24 16:39:29,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_13 [2020-09-24 16:39:29,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_14 [2020-09-24 16:39:29,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-24 16:39:29,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 16:39:29,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-24 16:39:29,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-24 16:39:29,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-24 16:39:29,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 16:39:29,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 16:39:29,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 16:39:29,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 16:39:29,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-24 16:39:29,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 16:39:29,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-24 16:39:29,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-24 16:39:29,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-24 16:39:29,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-24 16:39:29,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-24 16:39:29,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 16:39:29,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-24 16:39:29,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-24 16:39:29,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-24 16:39:29,908 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2020-09-24 16:39:29,908 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2020-09-24 16:39:29,908 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-09-24 16:39:29,908 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-09-24 16:39:29,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-09-24 16:39:29,910 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-09-24 16:39:29,910 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-24 16:39:29,911 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2020-09-24 16:39:29,911 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2020-09-24 16:39:29,911 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-09-24 16:39:29,912 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-09-24 16:39:29,912 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-09-24 16:39:29,912 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 16:39:29,912 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 16:39:29,913 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-24 16:39:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:39:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 16:39:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-24 16:39:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-24 16:39:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-24 16:39:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-09-24 16:39:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-09-24 16:39:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-09-24 16:39:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-09-24 16:39:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-24 16:39:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-09-24 16:39:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2020-09-24 16:39:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-24 16:39:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2020-09-24 16:39:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-24 16:39:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-24 16:39:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 16:39:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 16:39:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-24 16:39:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-24 16:39:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 16:39:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-24 16:39:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-24 16:39:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-24 16:39:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-24 16:39:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-24 16:39:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-24 16:39:29,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-24 16:39:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:39:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 16:39:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:39:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 16:39:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 16:39:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 16:39:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:39:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 16:39:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 16:39:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 16:39:29,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 16:39:29,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 16:39:29,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 16:39:29,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-09-24 16:39:29,922 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-09-24 16:39:29,925 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-09-24 16:39:29,926 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-09-24 16:39:29,926 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-09-24 16:39:29,926 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-09-24 16:39:29,926 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-09-24 16:39:29,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_12 [2020-09-24 16:39:29,927 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-09-24 16:39:29,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_13 [2020-09-24 16:39:29,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_14 [2020-09-24 16:39:29,927 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-09-24 16:39:29,927 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-09-24 16:39:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-24 16:39:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-24 16:39:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-09-24 16:39:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-09-24 16:39:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-09-24 16:39:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2020-09-24 16:39:29,929 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2020-09-24 16:39:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2020-09-24 16:39:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2020-09-24 16:39:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2020-09-24 16:39:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2020-09-24 16:39:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2020-09-24 16:39:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2020-09-24 16:39:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2020-09-24 16:39:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2020-09-24 16:39:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:39:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:39:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:39:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:39:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:39:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:39:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2020-09-24 16:39:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2020-09-24 16:39:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2020-09-24 16:39:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 16:39:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 16:39:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:39:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-24 16:39:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 16:39:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-24 16:39:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-24 16:39:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-24 16:39:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 16:39:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 16:39:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 16:39:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 16:39:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-24 16:39:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-24 16:39:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-24 16:39:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-24 16:39:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-24 16:39:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:39:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:39:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:39:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:39:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-24 16:39:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-24 16:39:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-24 16:39:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-24 16:39:30,820 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 16:39:33,351 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:39:33,352 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:39:33,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:39:33 BoogieIcfgContainer [2020-09-24 16:39:33,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:39:33,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:39:33,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:39:33,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:39:33,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:39:27" (1/3) ... [2020-09-24 16:39:33,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2cbe42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:39:33, skipping insertion in model container [2020-09-24 16:39:33,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:39:29" (2/3) ... [2020-09-24 16:39:33,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2cbe42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:39:33, skipping insertion in model container [2020-09-24 16:39:33,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:39:33" (3/3) ... [2020-09-24 16:39:33,382 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 [2020-09-24 16:39:33,394 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:39:33,407 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:39:33,431 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:39:33,477 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:39:33,477 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:39:33,478 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:39:33,478 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:39:33,478 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:39:33,478 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:39:33,478 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:39:33,479 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:39:33,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states. [2020-09-24 16:39:33,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-09-24 16:39:33,574 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:39:33,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:39:33,577 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:39:33,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:39:33,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1326592749, now seen corresponding path program 1 times [2020-09-24 16:39:33,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:39:33,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096982285] [2020-09-24 16:39:33,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:39:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:34,431 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:34,432 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:34,432 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:34,432 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:34,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-09-24 16:39:34,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:34,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 16:39:34,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:34,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:34,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 289 [2020-09-24 16:39:34,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:39:34,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:36,733 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 526 [2020-09-24 16:39:36,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:36,771 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:36,772 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:36,772 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:36,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:36,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-09-24 16:39:36,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:36,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:36,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:36,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:36,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:36,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:37,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2020-09-24 16:39:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:37,087 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:37,087 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:37,088 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:37,088 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:37,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:39:37,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:37,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:37,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:37,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:37,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:37,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:37,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:37,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:37,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:37,105 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:37,105 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:37,105 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:37,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:39:37,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:37,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:37,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:37,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:37,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:37,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:37,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:37,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2020-09-24 16:39:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:37,143 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:37,144 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:37,144 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:37,144 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:37,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:39:37,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:37,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:37,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:39:37,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:37,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:37,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-09-24 16:39:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:37,164 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:37,164 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:37,165 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:37,165 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:37,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:39:37,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:37,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:37,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:37,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:37,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:39:37,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:37,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:37,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:39:37,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096982285] [2020-09-24 16:39:37,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:39:37,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:39:37,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123608758] [2020-09-24 16:39:37,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:39:37,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:39:37,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:39:37,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:39:37,454 INFO L87 Difference]: Start difference. First operand 1502 states. Second operand 6 states. [2020-09-24 16:39:40,824 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 528 [2020-09-24 16:39:53,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:39:53,596 INFO L93 Difference]: Finished difference Result 3058 states and 3708 transitions. [2020-09-24 16:39:53,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:39:53,599 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 316 [2020-09-24 16:39:53,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:39:53,653 INFO L225 Difference]: With dead ends: 3058 [2020-09-24 16:39:53,653 INFO L226 Difference]: Without dead ends: 1953 [2020-09-24 16:39:53,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:39:53,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2020-09-24 16:39:53,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1466. [2020-09-24 16:39:53,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1466 states. [2020-09-24 16:39:53,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1690 transitions. [2020-09-24 16:39:53,994 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1690 transitions. Word has length 316 [2020-09-24 16:39:53,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:39:53,995 INFO L479 AbstractCegarLoop]: Abstraction has 1466 states and 1690 transitions. [2020-09-24 16:39:53,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:39:53,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1690 transitions. [2020-09-24 16:39:54,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2020-09-24 16:39:54,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:39:54,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:39:54,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:39:54,004 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:39:54,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:39:54,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1550398358, now seen corresponding path program 1 times [2020-09-24 16:39:54,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:39:54,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366342235] [2020-09-24 16:39:54,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:39:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:54,238 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:54,238 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:54,239 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:54,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:54,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 404 [2020-09-24 16:39:54,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:54,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:54,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 367 [2020-09-24 16:39:54,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:39:54,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:55,959 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 526 [2020-09-24 16:39:55,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:55,996 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:55,996 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:55,997 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:55,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:55,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-09-24 16:39:55,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:55,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:55,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:55,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:55,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:56,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2020-09-24 16:39:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:56,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:56,237 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:56,237 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:56,238 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:56,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:39:56,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:56,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:39:56,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:56,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:56,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:56,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:56,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:56,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:39:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:56,256 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:56,257 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:56,258 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:56,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:56,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:39:56,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:56,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:39:56,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:56,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:56,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:39:56,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:56,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:56,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-09-24 16:39:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:56,397 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:56,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:56,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:56,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:56,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 16:39:56,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:56,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:56,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:56,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:56,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-24 16:39:56,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:39:56,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:39:56,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:39:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:56,539 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:56,540 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:56,540 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:56,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:56,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 16:39:56,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:56,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:39:56,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:56,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:39:56,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-24 16:39:56,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:39:56,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:56,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-09-24 16:39:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:39:56,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:39:56,649 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:39:56,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:39:56,650 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:39:56,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:39:56,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:39:56,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:39:56,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:39:56,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:39:56,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:39:56,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:39:56,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:39:57,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:39:57,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366342235] [2020-09-24 16:39:57,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:39:57,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:39:57,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857592842] [2020-09-24 16:39:57,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:39:57,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:39:57,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:39:57,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:39:57,060 INFO L87 Difference]: Start difference. First operand 1466 states and 1690 transitions. Second operand 7 states. [2020-09-24 16:39:58,705 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 529 [2020-09-24 16:40:15,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:40:15,957 INFO L93 Difference]: Finished difference Result 2848 states and 3366 transitions. [2020-09-24 16:40:15,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 16:40:15,958 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 383 [2020-09-24 16:40:15,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:40:15,971 INFO L225 Difference]: With dead ends: 2848 [2020-09-24 16:40:15,971 INFO L226 Difference]: Without dead ends: 1661 [2020-09-24 16:40:15,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:40:15,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2020-09-24 16:40:16,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1467. [2020-09-24 16:40:16,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1467 states. [2020-09-24 16:40:16,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1691 transitions. [2020-09-24 16:40:16,149 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1691 transitions. Word has length 383 [2020-09-24 16:40:16,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:40:16,150 INFO L479 AbstractCegarLoop]: Abstraction has 1467 states and 1691 transitions. [2020-09-24 16:40:16,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:40:16,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1691 transitions. [2020-09-24 16:40:16,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2020-09-24 16:40:16,157 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:40:16,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:40:16,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:40:16,158 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:40:16,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:40:16,159 INFO L82 PathProgramCache]: Analyzing trace with hash 348022099, now seen corresponding path program 1 times [2020-09-24 16:40:16,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:40:16,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202236319] [2020-09-24 16:40:16,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:40:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:16,397 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:16,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:16,398 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:16,398 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:16,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 406 [2020-09-24 16:40:16,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:16,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:16,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:16,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:16,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-09-24 16:40:16,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 16:40:16,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:18,241 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 526 [2020-09-24 16:40:18,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:40:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:18,361 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:18,361 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:18,361 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:18,361 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:18,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-09-24 16:40:18,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:18,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:18,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:18,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:18,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:18,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-09-24 16:40:18,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:18,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2020-09-24 16:40:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:18,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:18,603 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:18,603 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:18,603 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:18,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:40:18,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:18,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:18,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:18,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:18,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:18,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:40:18,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:18,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:40:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:18,617 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:18,617 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:18,617 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:18,617 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:18,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:40:18,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:18,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:18,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:18,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:18,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:18,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:18,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-09-24 16:40:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:18,728 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:18,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:18,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:18,728 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:18,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 16:40:18,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:18,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:18,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:18,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:18,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-24 16:40:18,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:40:18,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:18,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:40:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:18,860 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:18,860 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:18,861 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:18,861 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:18,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 16:40:18,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:18,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:18,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:18,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-24 16:40:18,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:18,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2020-09-24 16:40:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:18,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:18,919 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:18,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:18,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:18,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:40:18,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:18,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:18,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:18,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:18,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:40:18,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:18,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:19,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:40:19,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202236319] [2020-09-24 16:40:19,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:40:19,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:40:19,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335673823] [2020-09-24 16:40:19,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:40:19,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:40:19,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:40:19,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:40:19,224 INFO L87 Difference]: Start difference. First operand 1467 states and 1691 transitions. Second operand 8 states. [2020-09-24 16:40:20,776 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 529