/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-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 [2020-09-25 02:49:18,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:49:18,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:49:18,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:49:18,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:49:18,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:49:18,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:49:18,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:49:18,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:49:18,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:49:18,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:49:18,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:49:18,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:49:18,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:49:18,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:49:18,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:49:18,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:49:18,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:49:18,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:49:18,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:49:18,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:49:18,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:49:18,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:49:18,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:49:18,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:49:18,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:49:18,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:49:18,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:49:18,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:49:18,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:49:18,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:49:18,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:49:18,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:49:18,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:49:18,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:49:18,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:49:18,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:49:18,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:49:18,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:49:18,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:49:18,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:49:18,152 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-25 02:49:18,205 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:49:18,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:49:18,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:49:18,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:49:18,208 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:49:18,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:49:18,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:49:18,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:49:18,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:49:18,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:49:18,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:49:18,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:49:18,211 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:49:18,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:49:18,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:49:18,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:49:18,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:49:18,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:49:18,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:49:18,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:49:18,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:49:18,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:49:18,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:49:18,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:49:18,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:49:18,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:49:18,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 02:49:18,215 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 02:49:18,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:49:18,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:49:18,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:49:18,689 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:49:18,690 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:49:18,692 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-25 02:49:18,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/145fb8fd0/f3b69936f75645399e62b3899271a100/FLAG84659e375 [2020-09-25 02:49:19,724 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:49:19,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-25 02:49:19,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/145fb8fd0/f3b69936f75645399e62b3899271a100/FLAG84659e375 [2020-09-25 02:49:20,180 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/145fb8fd0/f3b69936f75645399e62b3899271a100 [2020-09-25 02:49:20,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:49:20,197 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:49:20,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:49:20,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:49:20,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:49:20,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:49:20" (1/1) ... [2020-09-25 02:49:20,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248847c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:20, skipping insertion in model container [2020-09-25 02:49:20,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:49:20" (1/1) ... [2020-09-25 02:49:20,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:49:20,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:49:21,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:49:21,874 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:49:22,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:49:22,352 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:49:22,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:22 WrapperNode [2020-09-25 02:49:22,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:49:22,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:49:22,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:49:22,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:49:22,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:22" (1/1) ... [2020-09-25 02:49:22,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:22" (1/1) ... [2020-09-25 02:49:22,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:22" (1/1) ... [2020-09-25 02:49:22,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:22" (1/1) ... [2020-09-25 02:49:22,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:22" (1/1) ... [2020-09-25 02:49:22,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:22" (1/1) ... [2020-09-25 02:49:22,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:22" (1/1) ... [2020-09-25 02:49:22,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:49:22,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:49:22,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:49:22,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:49:22,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:49:22,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:49:22,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:49:22,746 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2020-09-25 02:49:22,747 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2020-09-25 02:49:22,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-09-25 02:49:22,747 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2020-09-25 02:49:22,747 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2020-09-25 02:49:22,748 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-25 02:49:22,748 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-25 02:49:22,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-25 02:49:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-25 02:49:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-25 02:49:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 02:49:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 02:49:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 02:49:22,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 02:49:22,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 02:49:22,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 02:49:22,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 02:49:22,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 02:49:22,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 02:49:22,751 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-09-25 02:49:22,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-25 02:49:22,751 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2020-09-25 02:49:22,752 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2020-09-25 02:49:22,752 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2020-09-25 02:49:22,752 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2020-09-25 02:49:22,752 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2020-09-25 02:49:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2020-09-25 02:49:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2020-09-25 02:49:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2020-09-25 02:49:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2020-09-25 02:49:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2020-09-25 02:49:22,754 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2020-09-25 02:49:22,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-09-25 02:49:22,754 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-09-25 02:49:22,754 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-09-25 02:49:22,754 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-09-25 02:49:22,755 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-09-25 02:49:22,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:49:22,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 02:49:22,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 02:49:22,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 02:49:22,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 02:49:22,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 02:49:22,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_12 [2020-09-25 02:49:22,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_13 [2020-09-25 02:49:22,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_14 [2020-09-25 02:49:22,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 02:49:22,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 02:49:22,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 02:49:22,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 02:49:22,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 02:49:22,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 02:49:22,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 02:49:22,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 02:49:22,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 02:49:22,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 02:49:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 02:49:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 02:49:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 02:49:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 02:49:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 02:49:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 02:49:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 02:49:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-25 02:49:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-25 02:49:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-25 02:49:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2020-09-25 02:49:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2020-09-25 02:49:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-09-25 02:49:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-09-25 02:49:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-09-25 02:49:22,762 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-09-25 02:49:22,762 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-25 02:49:22,762 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2020-09-25 02:49:22,762 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2020-09-25 02:49:22,762 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-09-25 02:49:22,763 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-09-25 02:49:22,763 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-09-25 02:49:22,763 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 02:49:22,763 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 02:49:22,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-25 02:49:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:49:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 02:49:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-25 02:49:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-25 02:49:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-25 02:49:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-09-25 02:49:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-09-25 02:49:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-09-25 02:49:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-09-25 02:49:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-25 02:49:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-09-25 02:49:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2020-09-25 02:49:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-25 02:49:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2020-09-25 02:49:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-25 02:49:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-25 02:49:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 02:49:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 02:49:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-25 02:49:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-25 02:49:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 02:49:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-25 02:49:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 02:49:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 02:49:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 02:49:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 02:49:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 02:49:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 02:49:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:49:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 02:49:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:49:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 02:49:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:49:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 02:49:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:49:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 02:49:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 02:49:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 02:49:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 02:49:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 02:49:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 02:49:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-09-25 02:49:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-09-25 02:49:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-09-25 02:49:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-09-25 02:49:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-09-25 02:49:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-09-25 02:49:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-09-25 02:49:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_12 [2020-09-25 02:49:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-09-25 02:49:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_13 [2020-09-25 02:49:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_14 [2020-09-25 02:49:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-09-25 02:49:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-09-25 02:49:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-25 02:49:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-25 02:49:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-09-25 02:49:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-09-25 02:49:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-09-25 02:49:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2020-09-25 02:49:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2020-09-25 02:49:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2020-09-25 02:49:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2020-09-25 02:49:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2020-09-25 02:49:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2020-09-25 02:49:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2020-09-25 02:49:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2020-09-25 02:49:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2020-09-25 02:49:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2020-09-25 02:49:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:49:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:49:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:49:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:49:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:49:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:49:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2020-09-25 02:49:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2020-09-25 02:49:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2020-09-25 02:49:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 02:49:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 02:49:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:49:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 02:49:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 02:49:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 02:49:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 02:49:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 02:49:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 02:49:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 02:49:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 02:49:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 02:49:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 02:49:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 02:49:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 02:49:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 02:49:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 02:49:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:49:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:49:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:49:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:49:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-25 02:49:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-25 02:49:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-25 02:49:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-25 02:49:23,685 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 02:49:25,510 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:49:25,511 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:49:25,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:49:25 BoogieIcfgContainer [2020-09-25 02:49:25,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:49:25,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:49:25,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:49:25,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:49:25,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:49:20" (1/3) ... [2020-09-25 02:49:25,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72790ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:49:25, skipping insertion in model container [2020-09-25 02:49:25,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:22" (2/3) ... [2020-09-25 02:49:25,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72790ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:49:25, skipping insertion in model container [2020-09-25 02:49:25,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:49:25" (3/3) ... [2020-09-25 02:49:25,541 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 [2020-09-25 02:49:25,553 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:49:25,566 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:49:25,584 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:49:25,616 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:49:25,617 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:49:25,617 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:49:25,617 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:49:25,617 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:49:25,617 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:49:25,617 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:49:25,617 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:49:25,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states. [2020-09-25 02:49:25,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-09-25 02:49:25,689 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:49:25,691 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] [2020-09-25 02:49:25,691 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:49:25,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:49:25,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1326592749, now seen corresponding path program 1 times [2020-09-25 02:49:25,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:49:25,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42069363] [2020-09-25 02:49:25,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:49:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:26,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:27,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:31,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:31,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-09-25 02:49:31,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:49:31,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-09-25 02:49:31,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:31,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:31,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 289 [2020-09-25 02:49:31,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:49:31,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 02:49:33,286 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 526 [2020-09-25 02:49:33,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:33,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:33,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:33,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-09-25 02:49:33,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:33,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-09-25 02:49:33,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:33,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:33,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:33,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:33,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:34,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2020-09-25 02:49:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:34,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:34,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:34,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:49:34,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:34,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 02:49:34,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:34,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:34,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:34,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:34,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:34,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:34,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:34,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:34,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:49:34,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:34,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 02:49:34,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:34,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:34,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:34,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:34,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:34,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2020-09-25 02:49:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:34,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:34,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:34,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:49:34,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:34,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 02:49:34,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:34,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:34,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:49:34,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:34,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:34,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-09-25 02:49:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:34,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:34,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:34,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:49:34,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:34,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 02:49:34,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:34,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:34,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 02:49:34,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:34,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:34,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:49:34,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42069363] [2020-09-25 02:49:34,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:49:34,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:49:34,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688549642] [2020-09-25 02:49:34,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:49:34,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:49:34,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:49:34,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:49:34,497 INFO L87 Difference]: Start difference. First operand 1502 states. Second operand 6 states. [2020-09-25 02:49:37,640 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification that was a NOOP. DAG size: 528 [2020-09-25 02:49:50,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:49:50,706 INFO L93 Difference]: Finished difference Result 3058 states and 3708 transitions. [2020-09-25 02:49:50,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 02:49:50,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 316 [2020-09-25 02:49:50,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:49:50,745 INFO L225 Difference]: With dead ends: 3058 [2020-09-25 02:49:50,745 INFO L226 Difference]: Without dead ends: 1953 [2020-09-25 02:49:50,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:49:50,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2020-09-25 02:49:51,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1466. [2020-09-25 02:49:51,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1466 states. [2020-09-25 02:49:51,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1690 transitions. [2020-09-25 02:49:51,102 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1690 transitions. Word has length 316 [2020-09-25 02:49:51,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:49:51,104 INFO L479 AbstractCegarLoop]: Abstraction has 1466 states and 1690 transitions. [2020-09-25 02:49:51,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:49:51,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1690 transitions. [2020-09-25 02:49:51,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2020-09-25 02:49:51,115 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:49:51,116 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] [2020-09-25 02:49:51,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:49:51,117 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:49:51,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:49:51,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1550398358, now seen corresponding path program 1 times [2020-09-25 02:49:51,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:49:51,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74404127] [2020-09-25 02:49:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:49:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:51,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:51,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:53,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:54,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:56,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:56,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 404 [2020-09-25 02:49:56,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:49:56,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 02:49:56,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:56,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:56,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 367 [2020-09-25 02:49:56,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:49:56,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:57,978 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 526 [2020-09-25 02:49:57,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:58,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:58,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:58,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-09-25 02:49:58,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:58,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-09-25 02:49:58,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:58,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:58,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:58,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:58,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2020-09-25 02:49:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:58,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:58,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:58,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:49:58,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 02:49:58,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:58,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:58,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:58,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:58,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:58,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:49:58,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:58,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 02:49:58,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:58,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:58,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:58,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:58,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:58,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-09-25 02:49:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:58,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:58,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:59,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:59,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 02:49:59,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:49:59,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-25 02:49:59,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:59,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:59,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 02:49:59,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:49:59,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:59,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:49:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:59,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:59,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:59,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:59,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 02:49:59,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:49:59,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 02:49:59,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:59,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:59,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 02:49:59,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:49:59,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:59,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-09-25 02:49:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:59,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:59,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:59,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:49:59,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:59,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 02:49:59,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 02:49:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:59,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:59,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:49:59,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74404127] [2020-09-25 02:49:59,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:49:59,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 02:49:59,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594977639] [2020-09-25 02:49:59,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:49:59,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:49:59,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:49:59,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:49:59,885 INFO L87 Difference]: Start difference. First operand 1466 states and 1690 transitions. Second operand 7 states. [2020-09-25 02:50:01,407 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 529