/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -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 0.2.0-0f64333 [2020-10-28 23:26:48,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 23:26:48,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 23:26:48,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 23:26:48,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 23:26:48,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 23:26:48,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 23:26:48,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 23:26:48,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 23:26:48,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 23:26:48,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 23:26:48,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 23:26:48,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 23:26:48,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 23:26:48,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 23:26:48,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 23:26:48,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 23:26:48,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 23:26:48,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 23:26:48,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 23:26:48,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 23:26:48,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 23:26:48,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 23:26:48,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 23:26:48,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 23:26:48,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 23:26:48,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 23:26:48,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 23:26:48,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 23:26:48,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 23:26:48,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 23:26:48,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 23:26:48,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 23:26:48,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 23:26:48,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 23:26:48,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 23:26:48,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 23:26:48,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 23:26:48,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 23:26:48,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 23:26:48,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 23:26:48,782 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 [2020-10-28 23:26:48,845 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 23:26:48,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 23:26:48,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 23:26:48,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 23:26:48,852 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 23:26:48,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 23:26:48,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 23:26:48,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 23:26:48,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 23:26:48,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 23:26:48,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 23:26:48,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 23:26:48,855 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 23:26:48,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 23:26:48,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 23:26:48,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 23:26:48,856 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 23:26:48,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 23:26:48,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 23:26:48,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 23:26:48,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 23:26:48,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 23:26:48,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 23:26:48,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 23:26:48,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 23:26:48,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 23:26:48,859 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 23:26:48,859 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 23:26:49,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 23:26:49,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 23:26:49,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 23:26:49,394 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 23:26:49,396 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 23:26:49,397 INFO L432 ainManager$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 [2020-10-28 23:26:49,491 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2bac3bb85/f7531b61a58e4cbf88a880f061df6664/FLAGaad869b79 [2020-10-28 23:26:50,595 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 23:26:50,596 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 [2020-10-28 23:26:50,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2bac3bb85/f7531b61a58e4cbf88a880f061df6664/FLAGaad869b79 [2020-10-28 23:26:51,045 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2bac3bb85/f7531b61a58e4cbf88a880f061df6664 [2020-10-28 23:26:51,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 23:26:51,055 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 23:26:51,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 23:26:51,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 23:26:51,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 23:26:51,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:26:51" (1/1) ... [2020-10-28 23:26:51,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d833cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:51, skipping insertion in model container [2020-10-28 23:26:51,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:26:51" (1/1) ... [2020-10-28 23:26:51,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 23:26:51,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 23:26:52,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 23:26:52,588 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 23:26:52,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 23:26:52,931 INFO L208 MainTranslator]: Completed translation [2020-10-28 23:26:52,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:52 WrapperNode [2020-10-28 23:26:52,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 23:26:52,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 23:26:52,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 23:26:52,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 23:26:52,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:52" (1/1) ... [2020-10-28 23:26:52,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:52" (1/1) ... [2020-10-28 23:26:53,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:52" (1/1) ... [2020-10-28 23:26:53,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:52" (1/1) ... [2020-10-28 23:26:53,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:52" (1/1) ... [2020-10-28 23:26:53,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:52" (1/1) ... [2020-10-28 23:26:53,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:52" (1/1) ... [2020-10-28 23:26:53,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 23:26:53,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 23:26:53,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 23:26:53,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 23:26:53,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:52" (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 [2020-10-28 23:26:53,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 23:26:53,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 23:26:53,369 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 23:26:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2020-10-28 23:26:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2020-10-28 23:26:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-10-28 23:26:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2020-10-28 23:26:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2020-10-28 23:26:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-10-28 23:26:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-10-28 23:26:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 23:26:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 23:26:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-28 23:26:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 23:26:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 23:26:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-28 23:26:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-28 23:26:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-28 23:26:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 23:26:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-28 23:26:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 23:26:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 23:26:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-28 23:26:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-28 23:26:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2020-10-28 23:26:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2020-10-28 23:26:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2020-10-28 23:26:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2020-10-28 23:26:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2020-10-28 23:26:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2020-10-28 23:26:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2020-10-28 23:26:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2020-10-28 23:26:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2020-10-28 23:26:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2020-10-28 23:26:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2020-10-28 23:26:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-10-28 23:26:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-10-28 23:26:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-10-28 23:26:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-10-28 23:26:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-10-28 23:26:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 23:26:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-28 23:26:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-28 23:26:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-28 23:26:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-28 23:26:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-28 23:26:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_12 [2020-10-28 23:26:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_13 [2020-10-28 23:26:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_14 [2020-10-28 23:26:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-28 23:26:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-28 23:26:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-28 23:26:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-28 23:26:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-28 23:26:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-28 23:26:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-28 23:26:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-28 23:26:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-28 23:26:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-28 23:26:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 23:26:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-28 23:26:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-28 23:26:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-28 23:26:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-28 23:26:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-28 23:26:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 23:26:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-28 23:26:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-10-28 23:26:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-10-28 23:26:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2020-10-28 23:26:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2020-10-28 23:26:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-28 23:26:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-10-28 23:26:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-10-28 23:26:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-10-28 23:26:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 23:26:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2020-10-28 23:26:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2020-10-28 23:26:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-10-28 23:26:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-28 23:26:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-10-28 23:26:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 23:26:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-28 23:26:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-28 23:26:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 23:26:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 23:26:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 23:26:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 23:26:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 23:26:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 23:26:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 23:26:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 23:26:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-10-28 23:26:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-10-28 23:26:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-10-28 23:26:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-10-28 23:26:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-10-28 23:26:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-10-28 23:26:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 23:26:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-10-28 23:26:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2020-10-28 23:26:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-28 23:26:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2020-10-28 23:26:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-10-28 23:26:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-10-28 23:26:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 23:26:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 23:26:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 23:26:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 23:26:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 23:26:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-28 23:26:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-28 23:26:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-28 23:26:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-28 23:26:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-28 23:26:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-28 23:26:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-28 23:26:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 23:26:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 23:26:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 23:26:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 23:26:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 23:26:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 23:26:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-28 23:26:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-28 23:26:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-28 23:26:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 23:26:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-28 23:26:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 23:26:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-10-28 23:26:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-10-28 23:26:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-10-28 23:26:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-10-28 23:26:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-10-28 23:26:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-28 23:26:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-28 23:26:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_12 [2020-10-28 23:26:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-28 23:26:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_13 [2020-10-28 23:26:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_14 [2020-10-28 23:26:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-10-28 23:26:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-10-28 23:26:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-28 23:26:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-28 23:26:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-10-28 23:26:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-10-28 23:26:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-10-28 23:26:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2020-10-28 23:26:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2020-10-28 23:26:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2020-10-28 23:26:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2020-10-28 23:26:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2020-10-28 23:26:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2020-10-28 23:26:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2020-10-28 23:26:53,395 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2020-10-28 23:26:53,395 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2020-10-28 23:26:53,395 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2020-10-28 23:26:53,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 23:26:53,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 23:26:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 23:26:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 23:26:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 23:26:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2020-10-28 23:26:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2020-10-28 23:26:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2020-10-28 23:26:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 23:26:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 23:26:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 23:26:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-28 23:26:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-28 23:26:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-28 23:26:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-28 23:26:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-28 23:26:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-28 23:26:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-28 23:26:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-28 23:26:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-28 23:26:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-28 23:26:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-28 23:26:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-28 23:26:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-28 23:26:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-28 23:26:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 23:26:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 23:26:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 23:26:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 23:26:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 23:26:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-28 23:26:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 23:26:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-28 23:26:54,273 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-28 23:26:57,936 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 23:26:57,936 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 23:26:57,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:26:57 BoogieIcfgContainer [2020-10-28 23:26:57,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 23:26:57,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 23:26:57,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 23:26:57,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 23:26:57,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:26:51" (1/3) ... [2020-10-28 23:26:57,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5959b90b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:26:57, skipping insertion in model container [2020-10-28 23:26:57,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:52" (2/3) ... [2020-10-28 23:26:57,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5959b90b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:26:57, skipping insertion in model container [2020-10-28 23:26:57,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:26:57" (3/3) ... [2020-10-28 23:26:57,953 INFO L111 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 [2020-10-28 23:26:57,967 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 23:26:57,974 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 23:26:57,991 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 23:26:58,026 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 23:26:58,027 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 23:26:58,027 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 23:26:58,027 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 23:26:58,027 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 23:26:58,027 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 23:26:58,027 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 23:26:58,028 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 23:26:58,063 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states. [2020-10-28 23:26:58,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-28 23:26:58,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 23:26:58,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 23:26:58,076 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 23:26:58,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 23:26:58,083 INFO L82 PathProgramCache]: Analyzing trace with hash -497735011, now seen corresponding path program 1 times [2020-10-28 23:26:58,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 23:26:58,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438937384] [2020-10-28 23:26:58,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 23:26:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:26:58,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:26:59,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:03,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:27:03,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 23:27:03,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 23:27:03,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5165 [2020-10-28 23:27:03,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:27:03,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:27:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:27:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-28 23:27:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 23:27:03,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 23:27:05,958 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-28 23:27:05,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:27:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:27:06,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:06,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:27:06,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:27:06,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:27:06,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-28 23:27:06,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:27:06,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:27:06,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:27:06,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:27:06,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:27:06,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:27:06,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 23:27:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:27:06,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:06,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:27:06,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 23:27:06,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:27:06,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 23:27:06,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:27:06,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:27:06,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:27:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:27:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:27:06,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 23:27:06,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:27:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:27:06,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:06,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:27:06,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:27:06,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:27:06,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 23:27:06,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:27:06,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:27:06,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:27:06,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:27:06,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:27:06,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-28 23:27:06,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 23:27:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:27:06,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:06,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:27:06,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:27:06,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:27:06,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 23:27:06,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:27:06,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:27:06,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:27:06,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 23:27:06,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:27:06,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:27:06,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 23:27:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:27:06,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:06,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:27:06,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:27:06,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:27:06,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 23:27:06,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:27:06,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:27:06,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:27:06,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 23:27:06,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:27:06,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:27:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 23:27:06,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438937384] [2020-10-28 23:27:06,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 23:27:06,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 23:27:06,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073830915] [2020-10-28 23:27:06,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 23:27:06,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 23:27:06,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 23:27:06,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 23:27:06,485 INFO L87 Difference]: Start difference. First operand 628 states. Second operand 6 states. [2020-10-28 23:27:10,528 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 540 [2020-10-28 23:27:25,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 23:27:25,289 INFO L93 Difference]: Finished difference Result 1426 states and 2079 transitions. [2020-10-28 23:27:25,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 23:27:25,292 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-10-28 23:27:25,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 23:27:25,319 INFO L225 Difference]: With dead ends: 1426 [2020-10-28 23:27:25,319 INFO L226 Difference]: Without dead ends: 866 [2020-10-28 23:27:25,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-28 23:27:25,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-10-28 23:27:25,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 602. [2020-10-28 23:27:25,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2020-10-28 23:27:25,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 826 transitions. [2020-10-28 23:27:25,624 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 826 transitions. Word has length 38 [2020-10-28 23:27:25,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 23:27:25,625 INFO L481 AbstractCegarLoop]: Abstraction has 602 states and 826 transitions. [2020-10-28 23:27:25,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 23:27:25,626 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 826 transitions. [2020-10-28 23:27:25,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-28 23:27:25,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 23:27:25,630 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] [2020-10-28 23:27:25,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 23:27:25,631 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 23:27:25,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 23:27:25,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1217157432, now seen corresponding path program 1 times [2020-10-28 23:27:25,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 23:27:25,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298268192] [2020-10-28 23:27:25,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 23:27:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:27:25,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:26,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:27,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:27,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:30,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:30,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:27:30,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-28 23:27:30,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 23:27:30,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-28 23:27:30,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:27:30,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:27:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:27:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 23:27:30,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 23:27:30,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 23:27:32,874 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-28 23:27:32,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:27:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:27:32,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:33,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:27:33,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:27:33,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:27:33,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-28 23:27:33,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:27:33,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:27:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:27:33,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:27:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 23:27:33,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:27:33,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 23:27:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:27:33,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:33,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:27:33,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 23:27:33,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:27:33,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 23:27:33,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:27:33,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:27:33,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:27:33,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:27:33,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 23:27:33,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:27:33,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:27:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:27:33,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:33,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:27:33,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:27:33,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:27:33,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 23:27:33,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:27:33,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:27:33,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:27:33,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:27:33,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:27:33,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:27:33,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 23:27:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:27:33,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:33,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:33,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:33,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:27:33,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 23:27:33,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 23:27:33,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-28 23:27:33,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:27:33,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:27:33,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 23:27:33,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 23:27:33,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 23:27:33,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:27:33,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:27:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:27:33,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:33,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:33,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:27:33,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 23:27:33,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 23:27:33,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-28 23:27:33,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:27:33,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:27:33,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 23:27:33,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 23:27:33,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 23:27:33,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:27:34,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-28 23:27:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:27:34,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:34,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:27:34,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:27:34,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:27:34,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 23:27:34,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:27:34,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:27:34,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:27:34,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 23:27:34,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:27:34,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:27:34,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 23:27:34,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298268192] [2020-10-28 23:27:34,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 23:27:34,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 23:27:34,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176037014] [2020-10-28 23:27:34,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 23:27:34,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 23:27:34,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 23:27:34,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-28 23:27:34,089 INFO L87 Difference]: Start difference. First operand 602 states and 826 transitions. Second operand 10 states. [2020-10-28 23:27:36,058 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification that was a NOOP. DAG size: 541 [2020-10-28 23:27:39,860 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 544 [2020-10-28 23:27:54,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 23:27:54,059 INFO L93 Difference]: Finished difference Result 1316 states and 1831 transitions. [2020-10-28 23:27:54,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 23:27:54,060 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2020-10-28 23:27:54,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 23:27:54,069 INFO L225 Difference]: With dead ends: 1316 [2020-10-28 23:27:54,069 INFO L226 Difference]: Without dead ends: 728 [2020-10-28 23:27:54,073 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-28 23:27:54,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-10-28 23:27:54,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 602. [2020-10-28 23:27:54,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2020-10-28 23:27:54,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 824 transitions. [2020-10-28 23:27:54,289 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 824 transitions. Word has length 50 [2020-10-28 23:27:54,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 23:27:54,289 INFO L481 AbstractCegarLoop]: Abstraction has 602 states and 824 transitions. [2020-10-28 23:27:54,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 23:27:54,290 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 824 transitions. [2020-10-28 23:27:54,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-28 23:27:54,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 23:27:54,293 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] [2020-10-28 23:27:54,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 23:27:54,294 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 23:27:54,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 23:27:54,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1027805276, now seen corresponding path program 1 times [2020-10-28 23:27:54,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 23:27:54,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177751583] [2020-10-28 23:27:54,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 23:27:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:27:54,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:54,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:27:59,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:27:59,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 23:27:59,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 23:27:59,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5114 [2020-10-28 23:27:59,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:27:59,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:27:59,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:27:59,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-28 23:27:59,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 23:27:59,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:28:01,597 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-28 23:28:01,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:28:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:01,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:01,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:01,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:28:01,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:01,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-28 23:28:01,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:01,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:01,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:01,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:28:01,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:01,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:01,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 23:28:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:01,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:01,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:01,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 23:28:01,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:01,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 23:28:01,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:01,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:01,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:01,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:28:01,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:01,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:28:01,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:28:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:01,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:01,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:01,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:28:01,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:01,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 23:28:01,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:01,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:01,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:01,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:28:01,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:01,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:01,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 23:28:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:01,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:02,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:02,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-28 23:28:02,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:02,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-28 23:28:02,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:02,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:02,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:28:02,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 23:28:02,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 23:28:02,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:28:02,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:28:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:02,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:02,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:02,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-28 23:28:02,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:02,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 23:28:02,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:02,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:02,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:28:02,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 23:28:02,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 23:28:02,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:28:02,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 23:28:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:02,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:02,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:02,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 23:28:02,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:02,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 23:28:02,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:02,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 23:28:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:02,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:02,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:28:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:02,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:02,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:02,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 23:28:02,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:02,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 23:28:02,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:02,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:02,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:02,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:28:02,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:02,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:02,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:28:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:02,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:02,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:02,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 23:28:02,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:02,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:28:02,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:02,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:02,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:02,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:28:02,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:02,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:02,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:28:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:02,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:02,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:02,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:28:02,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:02,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 23:28:02,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:02,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:02,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:28:02,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:02,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:02,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-28 23:28:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:02,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:02,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:02,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:28:02,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:02,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 23:28:02,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:02,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:02,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:02,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 23:28:02,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:02,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:02,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 23:28:02,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177751583] [2020-10-28 23:28:02,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 23:28:02,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 23:28:02,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630838938] [2020-10-28 23:28:02,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 23:28:02,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 23:28:02,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 23:28:02,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-28 23:28:02,428 INFO L87 Difference]: Start difference. First operand 602 states and 824 transitions. Second operand 8 states. [2020-10-28 23:28:04,390 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification that was a NOOP. DAG size: 541 [2020-10-28 23:28:18,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 23:28:18,635 INFO L93 Difference]: Finished difference Result 1366 states and 1911 transitions. [2020-10-28 23:28:18,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 23:28:18,636 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 72 [2020-10-28 23:28:18,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 23:28:18,644 INFO L225 Difference]: With dead ends: 1366 [2020-10-28 23:28:18,645 INFO L226 Difference]: Without dead ends: 778 [2020-10-28 23:28:18,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 23:28:18,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2020-10-28 23:28:18,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 604. [2020-10-28 23:28:18,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2020-10-28 23:28:18,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 826 transitions. [2020-10-28 23:28:18,831 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 826 transitions. Word has length 72 [2020-10-28 23:28:18,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 23:28:18,831 INFO L481 AbstractCegarLoop]: Abstraction has 604 states and 826 transitions. [2020-10-28 23:28:18,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 23:28:18,832 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 826 transitions. [2020-10-28 23:28:18,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-28 23:28:18,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 23:28:18,835 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 23:28:18,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 23:28:18,835 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 23:28:18,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 23:28:18,836 INFO L82 PathProgramCache]: Analyzing trace with hash -20066881, now seen corresponding path program 1 times [2020-10-28 23:28:18,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 23:28:18,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913208601] [2020-10-28 23:28:18,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 23:28:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:18,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:19,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:23,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:23,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-28 23:28:23,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 23:28:23,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-28 23:28:23,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:23,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 23:28:23,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-28 23:28:23,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 23:28:23,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:25,894 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-28 23:28:25,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:28:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:25,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:26,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:26,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:28:26,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:26,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-28 23:28:26,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:26,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:26,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:28:26,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:26,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:26,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 23:28:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:26,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:26,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:26,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 23:28:26,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:26,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 23:28:26,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:26,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:26,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:26,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:28:26,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:26,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:28:26,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:28:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:26,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:26,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:26,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:28:26,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:26,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 23:28:26,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:26,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:26,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:26,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:28:26,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:26,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:26,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 23:28:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:26,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:26,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:26,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 23:28:26,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:26,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-28 23:28:26,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:26,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:26,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 23:28:26,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 23:28:26,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 23:28:26,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:26,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:28:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:26,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:26,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:26,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 23:28:26,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:26,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-28 23:28:26,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:26,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:26,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 23:28:26,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 23:28:26,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 23:28:26,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:28:26,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 23:28:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:26,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:26,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:26,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 23:28:26,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:26,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 23:28:26,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:26,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:26,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:26,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 23:28:26,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:26,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:26,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:28:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:26,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:26,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:26,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 23:28:26,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:26,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:28:26,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:26,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:26,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:28:26,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:26,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:26,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:28:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:26,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:26,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:26,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 23:28:26,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:26,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 23:28:26,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:26,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:26,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:26,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:28:26,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:26,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:26,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:28:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:26,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:26,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:26,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:28:26,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:26,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 23:28:26,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:26,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:26,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:26,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:28:26,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:26,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:28:26,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 23:28:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:26,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:26,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:28:26,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:28:26,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:28:26,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 23:28:26,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:28:26,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:28:26,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:28:26,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 23:28:26,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:28:26,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:28:26,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 23:28:26,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913208601] [2020-10-28 23:28:26,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 23:28:26,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 23:28:26,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80991907] [2020-10-28 23:28:26,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 23:28:26,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 23:28:26,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 23:28:26,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-28 23:28:26,937 INFO L87 Difference]: Start difference. First operand 604 states and 826 transitions. Second operand 9 states. [2020-10-28 23:28:28,931 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 541 [2020-10-28 23:28:56,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 23:28:56,123 INFO L93 Difference]: Finished difference Result 1370 states and 1915 transitions. [2020-10-28 23:28:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 23:28:56,124 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 74 [2020-10-28 23:28:56,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 23:28:56,132 INFO L225 Difference]: With dead ends: 1370 [2020-10-28 23:28:56,132 INFO L226 Difference]: Without dead ends: 780 [2020-10-28 23:28:56,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-28 23:28:56,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2020-10-28 23:28:56,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 606. [2020-10-28 23:28:56,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 606 states. [2020-10-28 23:28:56,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 828 transitions. [2020-10-28 23:28:56,337 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 828 transitions. Word has length 74 [2020-10-28 23:28:56,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 23:28:56,337 INFO L481 AbstractCegarLoop]: Abstraction has 606 states and 828 transitions. [2020-10-28 23:28:56,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 23:28:56,337 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 828 transitions. [2020-10-28 23:28:56,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-28 23:28:56,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 23:28:56,339 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 23:28:56,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 23:28:56,340 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 23:28:56,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 23:28:56,340 INFO L82 PathProgramCache]: Analyzing trace with hash 2048889114, now seen corresponding path program 2 times [2020-10-28 23:28:56,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 23:28:56,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523953541] [2020-10-28 23:28:56,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 23:28:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:28:56,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:28:56,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:29:01,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:29:01,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-28 23:29:01,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 23:29:01,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-28 23:29:01,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:29:01,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:29:01,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 23:29:01,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 23:29:01,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 23:29:01,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:29:03,644 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 538 [2020-10-28 23:29:03,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:29:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:29:03,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:29:03,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:29:03,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:29:03,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:29:03,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-28 23:29:03,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:29:03,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:29:03,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:29:03,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:29:03,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:29:03,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:29:03,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 23:29:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:29:03,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:29:03,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:29:03,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 23:29:03,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:29:03,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:29:03,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:29:03,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:29:03,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:29:03,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:29:03,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 23:29:03,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:29:03,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:29:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:29:03,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:29:03,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:29:03,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:29:03,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:29:03,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 23:29:03,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:29:03,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:29:03,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:29:03,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:29:03,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 23:29:03,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:29:03,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 23:29:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:29:04,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:29:04,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:29:04,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:29:04,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 23:29:04,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 23:29:04,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-10-28 23:29:04,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:29:04,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:29:04,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:29:04,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:29:04,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-28 23:29:04,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:29:04,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:29:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:29:04,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:29:04,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:29:04,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:29:04,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-28 23:29:04,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 23:29:04,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-28 23:29:04,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:29:04,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:29:04,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:29:04,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:29:04,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:29:04,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:29:04,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 23:29:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:29:04,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:29:04,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:29:04,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 23:29:04,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:29:04,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 23:29:04,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:29:04,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:29:04,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:29:04,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:29:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:29:04,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:29:04,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:29:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:29:04,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:29:04,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:29:04,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 23:29:04,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:29:04,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 23:29:04,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:29:04,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:29:04,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:29:04,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:29:04,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:29:04,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:29:04,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:29:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:29:04,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:29:04,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:29:04,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 23:29:04,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:29:04,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 23:29:04,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:29:04,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:29:04,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:29:04,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:29:04,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:29:04,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:29:04,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 23:29:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:29:04,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:29:04,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:29:04,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:29:04,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:29:04,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 23:29:04,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:29:04,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:29:04,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:29:04,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:29:04,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:29:04,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:29:04,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 23:29:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:29:04,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:29:04,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:29:04,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:29:04,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:29:04,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 23:29:04,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:29:04,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:29:04,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 23:29:04,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:29:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 23:29:04,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:29:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-28 23:29:04,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523953541] [2020-10-28 23:29:04,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 23:29:04,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 23:29:04,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032460681] [2020-10-28 23:29:04,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 23:29:04,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 23:29:04,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 23:29:04,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-28 23:29:04,837 INFO L87 Difference]: Start difference. First operand 606 states and 828 transitions. Second operand 11 states. [2020-10-28 23:29:06,934 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 541 [2020-10-28 23:29:13,532 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 543 [2020-10-28 23:29:19,832 WARN L193 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 548 DAG size of output: 546 [2020-10-28 23:29:22,047 WARN L193 SmtUtils]: Spent 2.11 s on a formula simplification that was a NOOP. DAG size: 546 [2020-10-28 23:29:24,175 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 546 [2020-10-28 23:29:35,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 23:29:35,627 INFO L93 Difference]: Finished difference Result 780 states and 1098 transitions. [2020-10-28 23:29:35,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 23:29:35,628 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2020-10-28 23:29:35,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 23:29:35,630 INFO L225 Difference]: With dead ends: 780 [2020-10-28 23:29:35,630 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 23:29:35,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-28 23:29:35,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 23:29:35,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 23:29:35,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 23:29:35,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 23:29:35,634 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-10-28 23:29:35,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 23:29:35,635 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 23:29:35,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 23:29:35,635 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 23:29:35,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 23:29:35,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 23:29:35,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 23:29:35,892 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 547 [2020-10-28 23:29:36,514 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 19 [2020-10-28 23:29:36,773 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2020-10-28 23:29:37,040 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 550 DAG size of output: 548 [2020-10-28 23:29:37,322 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 550 DAG size of output: 548 [2020-10-28 23:29:37,582 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 550 DAG size of output: 548 [2020-10-28 23:29:37,876 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:39,249 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:39,785 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 19 [2020-10-28 23:29:40,049 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:40,267 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:40,527 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:40,724 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:40,871 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:41,035 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:41,182 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:41,347 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:43,131 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:43,416 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:45,708 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:45,868 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:46,014 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:46,161 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:46,305 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:46,461 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:46,617 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:46,769 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:49,524 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 19 [2020-10-28 23:29:50,996 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:51,533 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:51,791 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:52,044 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:52,202 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:52,348 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:52,500 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:52,645 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:52,792 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:56,099 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 19 [2020-10-28 23:29:56,261 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:56,551 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:29:56,811 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 19 [2020-10-28 23:29:57,094 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 19 [2020-10-28 23:29:58,387 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 19 [2020-10-28 23:29:58,524 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 19 [2020-10-28 23:30:00,045 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:30:00,195 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:30:00,338 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:30:00,482 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:30:00,625 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:30:00,770 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:30:00,919 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:30:01,076 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:30:01,237 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:30:01,623 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 23 [2020-10-28 23:30:01,767 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 23 [2020-10-28 23:30:01,912 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 23 [2020-10-28 23:30:02,049 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 19 [2020-10-28 23:30:02,737 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:30:02,892 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 29 [2020-10-28 23:30:03,035 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 19 [2020-10-28 23:30:05,142 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 396 DAG size of output: 84 [2020-10-28 23:30:06,973 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 374 DAG size of output: 22 [2020-10-28 23:30:08,791 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 394 DAG size of output: 82 [2020-10-28 23:30:10,466 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 374 DAG size of output: 22 [2020-10-28 23:30:12,113 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 374 DAG size of output: 22 [2020-10-28 23:30:13,930 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 394 DAG size of output: 82 [2020-10-28 23:30:17,305 WARN L193 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 376 DAG size of output: 14 [2020-10-28 23:30:19,063 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 373 DAG size of output: 24 [2020-10-28 23:30:20,790 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 373 DAG size of output: 24 [2020-10-28 23:30:22,566 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 374 DAG size of output: 22 [2020-10-28 23:30:24,605 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 404 DAG size of output: 100