/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=SHALLOWEST --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_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 10:20:18,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 10:20:18,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 10:20:18,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 10:20:18,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 10:20:18,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 10:20:18,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 10:20:18,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 10:20:18,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 10:20:18,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 10:20:18,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 10:20:18,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 10:20:18,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 10:20:18,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 10:20:18,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 10:20:18,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 10:20:18,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 10:20:18,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 10:20:18,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 10:20:18,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 10:20:18,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 10:20:18,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 10:20:18,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 10:20:18,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 10:20:18,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 10:20:18,725 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 10:20:18,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 10:20:18,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 10:20:18,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 10:20:18,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 10:20:18,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 10:20:18,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 10:20:18,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 10:20:18,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 10:20:18,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 10:20:18,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 10:20:18,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 10:20:18,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 10:20:18,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 10:20:18,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 10:20:18,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 10:20:18,747 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 [2020-10-27 10:20:18,794 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 10:20:18,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 10:20:18,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 10:20:18,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 10:20:18,799 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 10:20:18,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 10:20:18,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 10:20:18,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 10:20:18,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 10:20:18,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 10:20:18,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 10:20:18,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 10:20:18,801 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 10:20:18,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 10:20:18,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 10:20:18,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 10:20:18,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 10:20:18,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 10:20:18,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 10:20:18,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 10:20:18,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 10:20:18,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 10:20:18,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 10:20:18,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 10:20:18,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 10:20:18,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 10:20:18,804 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-27 10:20:18,804 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 10:20:19,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 10:20:19,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 10:20:19,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 10:20:19,220 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 10:20:19,221 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 10:20:19,221 INFO L432 ainManager$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_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2020-10-27 10:20:19,297 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d38bfb5e/9259464ec1814bf69d470aa84a0be7f1/FLAG0a6368661 [2020-10-27 10:20:20,385 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 10:20:20,386 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2020-10-27 10:20:20,430 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d38bfb5e/9259464ec1814bf69d470aa84a0be7f1/FLAG0a6368661 [2020-10-27 10:20:20,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d38bfb5e/9259464ec1814bf69d470aa84a0be7f1 [2020-10-27 10:20:20,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 10:20:20,844 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 10:20:20,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 10:20:20,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 10:20:20,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 10:20:20,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:20:20" (1/1) ... [2020-10-27 10:20:20,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c258695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:20:20, skipping insertion in model container [2020-10-27 10:20:20,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:20:20" (1/1) ... [2020-10-27 10:20:20,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 10:20:20,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 10:20:22,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 10:20:22,114 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 10:20:22,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 10:20:22,403 INFO L208 MainTranslator]: Completed translation [2020-10-27 10:20:22,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:20:22 WrapperNode [2020-10-27 10:20:22,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 10:20:22,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 10:20:22,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 10:20:22,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 10:20:22,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:20:22" (1/1) ... [2020-10-27 10:20:22,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:20:22" (1/1) ... [2020-10-27 10:20:22,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:20:22" (1/1) ... [2020-10-27 10:20:22,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:20:22" (1/1) ... [2020-10-27 10:20:22,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:20:22" (1/1) ... [2020-10-27 10:20:22,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:20:22" (1/1) ... [2020-10-27 10:20:22,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:20:22" (1/1) ... [2020-10-27 10:20:22,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 10:20:22,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 10:20:22,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 10:20:22,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 10:20:22,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:20:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 10:20:22,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 10:20:22,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 10:20:22,801 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 10:20:22,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-27 10:20:22,802 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-27 10:20:22,802 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-27 10:20:22,803 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-10-27 10:20:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 10:20:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 10:20:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-27 10:20:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-27 10:20:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-27 10:20:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-27 10:20:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-27 10:20:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-27 10:20:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-27 10:20:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-10-27 10:20:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-27 10:20:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_cmd [2020-10-27 10:20:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_bind [2020-10-27 10:20:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_unbind [2020-10-27 10:20:22,810 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_rx_fixup [2020-10-27 10:20:22,810 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_tx_fixup [2020-10-27 10:20:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_driver_init [2020-10-27 10:20:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_driver_exit [2020-10-27 10:20:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2020-10-27 10:20:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-27 10:20:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 10:20:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-27 10:20:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-27 10:20:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-27 10:20:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-27 10:20:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-27 10:20:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2020-10-27 10:20:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_14 [2020-10-27 10:20:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_15 [2020-10-27 10:20:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-27 10:20:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-27 10:20:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-27 10:20:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-27 10:20:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-27 10:20:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-27 10:20:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-27 10:20:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-27 10:20:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-27 10:20:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-27 10:20:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 10:20:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-27 10:20:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-27 10:20:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-27 10:20:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-27 10:20:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-27 10:20:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 10:20:22,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-10-27 10:20:22,816 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-27 10:20:22,816 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-27 10:20:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2020-10-27 10:20:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2020-10-27 10:20:22,817 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-27 10:20:22,818 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-27 10:20:22,818 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-27 10:20:22,818 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-10-27 10:20:22,819 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2020-10-27 10:20:22,819 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-27 10:20:22,819 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-27 10:20:22,819 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2020-10-27 10:20:22,819 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-10-27 10:20:22,819 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2020-10-27 10:20:22,819 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-10-27 10:20:22,820 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-10-27 10:20:22,820 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2020-10-27 10:20:22,820 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-10-27 10:20:22,820 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-27 10:20:22,821 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-27 10:20:22,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-27 10:20:22,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-27 10:20:22,822 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 10:20:22,823 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 10:20:22,823 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 10:20:22,823 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 10:20:22,823 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 10:20:22,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 10:20:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-27 10:20:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-27 10:20:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-27 10:20:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-27 10:20:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 10:20:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-27 10:20:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-27 10:20:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-27 10:20:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-27 10:20:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-27 10:20:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-27 10:20:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-27 10:20:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-27 10:20:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-27 10:20:22,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-27 10:20:22,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-27 10:20:22,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2020-10-27 10:20:22,827 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2020-10-27 10:20:22,827 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-27 10:20:22,827 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-27 10:20:22,827 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-27 10:20:22,827 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-10-27 10:20:22,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 10:20:22,828 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-10-27 10:20:22,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-27 10:20:22,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-27 10:20:22,828 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 10:20:22,829 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 10:20:22,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 10:20:22,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 10:20:22,830 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 10:20:22,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 10:20:22,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-27 10:20:22,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-27 10:20:22,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-27 10:20:22,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-27 10:20:22,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-27 10:20:22,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-27 10:20:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2020-10-27 10:20:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-27 10:20:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-10-27 10:20:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-10-27 10:20:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-27 10:20:22,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_14 [2020-10-27 10:20:22,833 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-27 10:20:22,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_15 [2020-10-27 10:20:22,833 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2020-10-27 10:20:22,833 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2020-10-27 10:20:22,834 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-27 10:20:22,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 10:20:22,836 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-27 10:20:22,837 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-10-27 10:20:22,839 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-10-27 10:20:22,840 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-10-27 10:20:22,840 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-10-27 10:20:22,840 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2020-10-27 10:20:22,840 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2020-10-27 10:20:22,841 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_cmd [2020-10-27 10:20:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-27 10:20:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 10:20:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 10:20:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_bind [2020-10-27 10:20:22,845 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_unbind [2020-10-27 10:20:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_rx_fixup [2020-10-27 10:20:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_tx_fixup [2020-10-27 10:20:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_driver_init [2020-10-27 10:20:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_driver_exit [2020-10-27 10:20:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2020-10-27 10:20:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 10:20:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 10:20:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 10:20:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-27 10:20:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 10:20:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-27 10:20:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-27 10:20:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-27 10:20:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-27 10:20:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-27 10:20:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-27 10:20:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-27 10:20:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-27 10:20:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-27 10:20:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-27 10:20:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-27 10:20:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-27 10:20:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-27 10:20:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 10:20:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 10:20:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 10:20:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 10:20:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-27 10:20:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 10:20:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-27 10:20:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-27 10:20:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-27 10:20:23,645 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-27 10:20:27,091 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 10:20:27,092 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-27 10:20:27,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:20:27 BoogieIcfgContainer [2020-10-27 10:20:27,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 10:20:27,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 10:20:27,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 10:20:27,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 10:20:27,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:20:20" (1/3) ... [2020-10-27 10:20:27,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c3f033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:20:27, skipping insertion in model container [2020-10-27 10:20:27,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:20:22" (2/3) ... [2020-10-27 10:20:27,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c3f033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:20:27, skipping insertion in model container [2020-10-27 10:20:27,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:20:27" (3/3) ... [2020-10-27 10:20:27,104 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2020-10-27 10:20:27,116 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 10:20:27,122 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 10:20:27,135 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 10:20:27,165 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 10:20:27,165 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 10:20:27,166 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 10:20:27,166 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 10:20:27,166 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 10:20:27,166 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 10:20:27,166 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 10:20:27,166 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 10:20:27,196 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states. [2020-10-27 10:20:27,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-27 10:20:27,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:20:27,212 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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] [2020-10-27 10:20:27,212 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:20:27,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:20:27,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1626882681, now seen corresponding path program 1 times [2020-10-27 10:20:27,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:20:27,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634648804] [2020-10-27 10:20:27,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:20:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:20:27,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:27,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:28,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:30,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:32,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:20:32,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-27 10:20:32,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 10:20:32,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 10:20:32,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:20:32,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:20:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-27 10:20:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 10:20:32,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 10:20:33,285 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-27 10:20:33,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:20:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:20:33,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:33,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:20:33,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:20:33,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:20:33,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 10:20:33,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:20:33,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:20:33,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:20:33,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:20:33,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:20:33,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:20:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:20:33,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:33,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:20:33,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:20:33,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:20:33,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 10:20:33,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:20:33,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:20:33,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:20:33,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:20:33,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:20:33,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 10:20:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:20:33,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:33,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:20:33,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:20:33,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:20:33,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 10:20:33,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:20:33,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:20:33,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:20:33,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:20:33,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 10:20:33,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:20:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:20:33,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:33,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:20:33,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:20:33,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:20:33,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 10:20:33,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:20:33,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:20:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:20:33,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 10:20:33,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 10:20:33,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:20:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:20:33,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:33,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:33,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:20:33,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:20:33,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:20:33,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 10:20:33,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:20:33,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:20:33,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:20:33,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:20:33,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:20:33,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 10:20:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:20:33,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:33,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:33,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:20:33,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:20:33,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:20:33,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 10:20:33,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:20:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:20:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:20:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:20:33,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:20:33,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 10:20:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:20:33,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:33,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:20:33,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 10:20:33,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:20:33,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 10:20:33,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:20:33,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:20:33,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:20:33,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 10:20:33,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:20:33,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:20:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:20:33,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:33,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:20:33,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 10:20:33,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:20:33,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 10:20:33,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:20:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:20:33,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:20:33,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:20:33,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:20:33,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:20:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:20:33,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:33,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:20:33,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:20:33,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:20:33,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:20:33,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:20:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:20:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:20:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:20:33,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:20:33,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 10:20:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:20:33,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:33,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:20:33,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:20:33,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:20:33,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 10:20:33,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:20:33,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:20:33,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:20:33,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:20:33,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:20:33,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 10:20:33,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634648804] [2020-10-27 10:20:33,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:20:33,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 10:20:33,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492840755] [2020-10-27 10:20:33,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 10:20:33,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:20:33,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 10:20:33,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-27 10:20:33,913 INFO L87 Difference]: Start difference. First operand 427 states. Second operand 11 states. [2020-10-27 10:20:38,906 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-27 10:20:43,027 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 257 DAG size of output: 255 [2020-10-27 10:20:43,650 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-27 10:20:44,238 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-27 10:20:48,053 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-27 10:20:56,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:20:56,357 INFO L93 Difference]: Finished difference Result 1569 states and 2284 transitions. [2020-10-27 10:20:56,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 10:20:56,360 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2020-10-27 10:20:56,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:20:56,392 INFO L225 Difference]: With dead ends: 1569 [2020-10-27 10:20:56,393 INFO L226 Difference]: Without dead ends: 1102 [2020-10-27 10:20:56,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=201, Invalid=501, Unknown=0, NotChecked=0, Total=702 [2020-10-27 10:20:56,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2020-10-27 10:20:56,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 811. [2020-10-27 10:20:56,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-10-27 10:20:56,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1058 transitions. [2020-10-27 10:20:56,745 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1058 transitions. Word has length 62 [2020-10-27 10:20:56,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:20:56,745 INFO L481 AbstractCegarLoop]: Abstraction has 811 states and 1058 transitions. [2020-10-27 10:20:56,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 10:20:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1058 transitions. [2020-10-27 10:20:56,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-27 10:20:56,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:20:56,764 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:20:56,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 10:20:56,765 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:20:56,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:20:56,765 INFO L82 PathProgramCache]: Analyzing trace with hash 917115717, now seen corresponding path program 1 times [2020-10-27 10:20:56,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:20:56,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016519160] [2020-10-27 10:20:56,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:20:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:20:56,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:56,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:57,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:57,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:57,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:58,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:20:58,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:01,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:01,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-27 10:21:01,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 10:21:01,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-27 10:21:01,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:01,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:21:01,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 10:21:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 10:21:01,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:02,424 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-27 10:21:02,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:21:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:02,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:02,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:02,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:21:02,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:02,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-27 10:21:02,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:02,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:02,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:02,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:02,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:02,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:21:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:02,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:02,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:02,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:21:02,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:02,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:21:02,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:02,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:02,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 10:21:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:02,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:02,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:02,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:21:02,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:02,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:21:02,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:02,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:02,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:02,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:02,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:02,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:21:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:02,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:02,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:02,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:21:02,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:02,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:21:02,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:02,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:02,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:02,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:02,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:02,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:21:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:02,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:02,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:02,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:21:02,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:02,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 10:21:02,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:02,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:21:02,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:21:02,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:21:02,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:02,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 10:21:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:02,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:02,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:02,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:02,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:21:02,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:21:02,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 10:21:02,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:02,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:21:02,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:21:02,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:21:02,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:21:02,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 10:21:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:02,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:02,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:02,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:03,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:04,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:04,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-27 10:21:04,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 10:21:04,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1372 [2020-10-27 10:21:04,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:04,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:21:04,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 10:21:04,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 10:21:04,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:21:04,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 10:21:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:04,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:04,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:04,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 10:21:04,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:04,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:21:04,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:04,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:04,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:04,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:04,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:04,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:21:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:04,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:04,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:04,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:21:04,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:04,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:21:04,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:04,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:04,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:04,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:04,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:04,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 10:21:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:04,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:04,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:04,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:04,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:04,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 10:21:04,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 10:21:04,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-27 10:21:04,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:04,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:21:04,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 10:21:04,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:21:04,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:04,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:21:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:04,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:04,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:04,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 10:21:04,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:04,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 10:21:04,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:04,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:21:04,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 10:21:04,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:21:04,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:04,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:21:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:04,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:04,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:04,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:21:04,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:04,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 10:21:04,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:04,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:21:04,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:21:04,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 10:21:04,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 10:21:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:04,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:04,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:04,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:21:04,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:04,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:21:04,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:04,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 10:21:04,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:04,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:04,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 10:21:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:04,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:04,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:04,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 10:21:04,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:04,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:21:04,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:04,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:04,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 10:21:04,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:04,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:04,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:21:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:04,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:04,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:04,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 10:21:04,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:04,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:21:04,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:04,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:04,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:04,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:04,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:04,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:21:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:04,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:04,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:04,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:21:04,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:04,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:21:04,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:04,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:04,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:04,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:04,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:04,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 10:21:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:04,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:04,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:04,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:21:04,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:04,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:21:04,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:04,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:04,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:21:04,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:04,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:04,980 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-27 10:21:04,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016519160] [2020-10-27 10:21:04,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:21:04,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-27 10:21:04,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916724884] [2020-10-27 10:21:04,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 10:21:04,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:21:04,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 10:21:04,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-27 10:21:04,984 INFO L87 Difference]: Start difference. First operand 811 states and 1058 transitions. Second operand 16 states. [2020-10-27 10:21:12,762 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-27 10:21:13,717 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-27 10:21:14,312 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-27 10:21:16,508 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 251 [2020-10-27 10:21:17,648 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-27 10:21:18,240 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-27 10:21:25,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:21:25,127 INFO L93 Difference]: Finished difference Result 1917 states and 2671 transitions. [2020-10-27 10:21:25,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 10:21:25,128 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 122 [2020-10-27 10:21:25,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:21:25,141 INFO L225 Difference]: With dead ends: 1917 [2020-10-27 10:21:25,141 INFO L226 Difference]: Without dead ends: 1120 [2020-10-27 10:21:25,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 10:21:25,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2020-10-27 10:21:25,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 823. [2020-10-27 10:21:25,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2020-10-27 10:21:25,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1079 transitions. [2020-10-27 10:21:25,297 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1079 transitions. Word has length 122 [2020-10-27 10:21:25,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:21:25,297 INFO L481 AbstractCegarLoop]: Abstraction has 823 states and 1079 transitions. [2020-10-27 10:21:25,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 10:21:25,298 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1079 transitions. [2020-10-27 10:21:25,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-27 10:21:25,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:21:25,302 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:21:25,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 10:21:25,303 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:21:25,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:21:25,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1483157846, now seen corresponding path program 1 times [2020-10-27 10:21:25,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:21:25,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804085533] [2020-10-27 10:21:25,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:21:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:25,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:25,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:25,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:25,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:25,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:25,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:30,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:30,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-27 10:21:30,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 10:21:30,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-27 10:21:30,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:30,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:21:30,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 10:21:30,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:21:30,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:30,888 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-27 10:21:30,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:21:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:30,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:30,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:30,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:21:30,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:30,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 10:21:30,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:30,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:30,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:30,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:30,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:30,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:21:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:30,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:30,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:30,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:21:30,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:30,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:21:30,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:30,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:30,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:30,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:30,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:31,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 10:21:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:31,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:31,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:31,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:21:31,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:31,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:21:31,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:31,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:31,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:21:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:31,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:31,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:31,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:21:31,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:31,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:21:31,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:31,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:31,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:31,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:31,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:31,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:21:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:31,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:31,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:31,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:21:31,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:31,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-27 10:21:31,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:31,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:21:31,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:21:31,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 10:21:31,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-27 10:21:31,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-27 10:21:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:31,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:31,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:31,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:31,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:21:31,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:21:31,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 10:21:31,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:31,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:21:31,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:21:31,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 10:21:31,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:31,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 10:21:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:31,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:31,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:31,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:31,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:32,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:33,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:33,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 10:21:33,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 10:21:33,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2716 [2020-10-27 10:21:33,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:33,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 10:21:33,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-27 10:21:33,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 10:21:33,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:34,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 10:21:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:34,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:34,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:34,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 10:21:34,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:34,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:21:34,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:34,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:34,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:34,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:34,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:34,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:21:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:34,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:34,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:34,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:21:34,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:34,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:21:34,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:34,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:34,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 10:21:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:34,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:34,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:34,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:34,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:34,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 10:21:34,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 10:21:34,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 633 [2020-10-27 10:21:34,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:34,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 10:21:34,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 10:21:34,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 10:21:34,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:34,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:21:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:34,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:34,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:34,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 10:21:34,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:34,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-27 10:21:34,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 10:21:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 10:21:34,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:34,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:21:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:34,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:35,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:35,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 10:21:35,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:35,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 10:21:35,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:35,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:21:35,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:35,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 10:21:35,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:35,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 10:21:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:35,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:35,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:35,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:21:35,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:35,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 10:21:35,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:21:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:35,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:21:35,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:35,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:21:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:35,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:35,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:35,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:21:35,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:35,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:21:35,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:35,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:21:35,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:35,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:21:35,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:35,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:21:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:35,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:35,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:35,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:21:35,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:35,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 10:21:35,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:35,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:21:35,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:35,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 10:21:35,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:35,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 10:21:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:35,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:35,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:35,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 10:21:35,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:35,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:21:35,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 10:21:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:35,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:35,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:21:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:35,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:35,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:35,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 10:21:35,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:35,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:21:35,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:35,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:35,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:21:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:35,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:35,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:35,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:21:35,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:35,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:21:35,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:35,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:35,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:35,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:35,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-27 10:21:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:35,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:35,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:35,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:21:35,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:35,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:21:35,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:35,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:35,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:21:35,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:35,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:35,401 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-27 10:21:35,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804085533] [2020-10-27 10:21:35,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 10:21:35,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-27 10:21:35,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070225331] [2020-10-27 10:21:35,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 10:21:35,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:21:35,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 10:21:35,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2020-10-27 10:21:35,404 INFO L87 Difference]: Start difference. First operand 823 states and 1079 transitions. Second operand 22 states. [2020-10-27 10:21:44,956 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-27 10:21:53,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:21:53,766 INFO L93 Difference]: Finished difference Result 1932 states and 2690 transitions. [2020-10-27 10:21:53,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 10:21:53,768 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 135 [2020-10-27 10:21:53,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:21:53,779 INFO L225 Difference]: With dead ends: 1932 [2020-10-27 10:21:53,779 INFO L226 Difference]: Without dead ends: 1123 [2020-10-27 10:21:53,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=255, Invalid=1725, Unknown=0, NotChecked=0, Total=1980 [2020-10-27 10:21:53,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2020-10-27 10:21:53,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 832. [2020-10-27 10:21:53,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-10-27 10:21:53,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1085 transitions. [2020-10-27 10:21:53,999 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1085 transitions. Word has length 135 [2020-10-27 10:21:54,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:21:54,002 INFO L481 AbstractCegarLoop]: Abstraction has 832 states and 1085 transitions. [2020-10-27 10:21:54,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 10:21:54,003 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1085 transitions. [2020-10-27 10:21:54,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-27 10:21:54,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:21:54,009 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:21:54,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 10:21:54,009 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:21:54,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:21:54,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1994065699, now seen corresponding path program 1 times [2020-10-27 10:21:54,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:21:54,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1172758424] [2020-10-27 10:21:54,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:21:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:54,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:54,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:54,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:54,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:54,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:57,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:59,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:59,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-27 10:21:59,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 10:21:59,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-10-27 10:21:59,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:21:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 10:21:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:21:59,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:59,683 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-27 10:21:59,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:21:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:59,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:59,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:59,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:21:59,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:59,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 10:21:59,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:59,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:59,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:59,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:21:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:59,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:59,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:59,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:21:59,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:59,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:21:59,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:59,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:59,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:59,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:59,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:59,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 10:21:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:59,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:59,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:59,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:21:59,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:59,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:21:59,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:59,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:59,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:59,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:59,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:21:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:59,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:59,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:59,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:21:59,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:59,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:21:59,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:59,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:21:59,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:21:59,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:21:59,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:59,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:21:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:21:59,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:21:59,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:21:59,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:21:59,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:21:59,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 10:21:59,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:21:59,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:21:59,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:21:59,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 10:21:59,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:21:59,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 10:21:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:00,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:00,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:00,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:00,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:22:00,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:22:00,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 10:22:00,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:00,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:22:00,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:22:00,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 10:22:00,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:00,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 10:22:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:00,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:00,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:00,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:00,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-27 10:22:00,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:22:00,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 627 [2020-10-27 10:22:00,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:00,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 10:22:00,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 10:22:00,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 10:22:00,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:00,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 10:22:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:00,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:01,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:01,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 10:22:01,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:01,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-10-27 10:22:01,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:01,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 10:22:01,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:01,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 10:22:01,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:01,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:22:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:01,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:01,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:01,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 10:22:01,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:01,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-27 10:22:01,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:01,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 10:22:01,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:01,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 10:22:01,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:01,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:22:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:01,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:01,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:01,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 10:22:01,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:01,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-27 10:22:01,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:01,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 10:22:01,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:01,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 10:22:01,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:02,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 10:22:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:02,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:02,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:02,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:22:02,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:02,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:22:02,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:02,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:02,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:02,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:02,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:02,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:22:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:02,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:02,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:02,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:22:02,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:02,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 10:22:02,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:02,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:22:02,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:02,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 10:22:02,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:02,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:22:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:02,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:02,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:02,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:22:02,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:02,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 10:22:02,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:22:02,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:02,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 10:22:02,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:02,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 10:22:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:02,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:02,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:02,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:22:02,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:02,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 10:22:02,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:22:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:22:02,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:02,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 10:22:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:02,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:02,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:02,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 10:22:02,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:02,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:22:02,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:02,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:02,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 10:22:02,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:02,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:02,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:22:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:02,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:02,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:02,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 10:22:02,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:02,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:22:02,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:02,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:02,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:02,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:02,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:02,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:22:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:02,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:02,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:02,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:22:02,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:02,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:22:02,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:02,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:02,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:02,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:02,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:02,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 10:22:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:02,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:02,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:02,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:22:02,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:02,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:22:02,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:02,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:02,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:22:02,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:02,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:02,447 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-27 10:22:02,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1172758424] [2020-10-27 10:22:02,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 10:22:02,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-27 10:22:02,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351726280] [2020-10-27 10:22:02,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-27 10:22:02,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:22:02,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-27 10:22:02,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=628, Unknown=0, NotChecked=0, Total=702 [2020-10-27 10:22:02,456 INFO L87 Difference]: Start difference. First operand 832 states and 1085 transitions. Second operand 27 states. [2020-10-27 10:22:16,241 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-27 10:22:16,908 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-27 10:22:17,714 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-27 10:22:22,293 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-27 10:22:32,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:22:32,314 INFO L93 Difference]: Finished difference Result 1981 states and 2732 transitions. [2020-10-27 10:22:32,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-27 10:22:32,315 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 125 [2020-10-27 10:22:32,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:22:32,324 INFO L225 Difference]: With dead ends: 1981 [2020-10-27 10:22:32,324 INFO L226 Difference]: Without dead ends: 1163 [2020-10-27 10:22:32,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=383, Invalid=3157, Unknown=0, NotChecked=0, Total=3540 [2020-10-27 10:22:32,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2020-10-27 10:22:32,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 847. [2020-10-27 10:22:32,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 847 states. [2020-10-27 10:22:32,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1104 transitions. [2020-10-27 10:22:32,480 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1104 transitions. Word has length 125 [2020-10-27 10:22:32,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:22:32,480 INFO L481 AbstractCegarLoop]: Abstraction has 847 states and 1104 transitions. [2020-10-27 10:22:32,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-27 10:22:32,480 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1104 transitions. [2020-10-27 10:22:32,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-27 10:22:32,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:22:32,485 INFO L422 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:22:32,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 10:22:32,485 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:22:32,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:22:32,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1789614890, now seen corresponding path program 1 times [2020-10-27 10:22:32,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:22:32,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303354013] [2020-10-27 10:22:32,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:22:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:32,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:32,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:32,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:33,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:37,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:37,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-27 10:22:37,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 10:22:37,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5090 [2020-10-27 10:22:37,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 10:22:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 10:22:37,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 10:22:37,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:38,215 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-27 10:22:38,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:22:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:38,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:38,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:38,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:22:38,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:38,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 10:22:38,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:38,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:38,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:38,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:38,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:38,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:22:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:38,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:38,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:38,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:22:38,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:38,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:22:38,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:38,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:38,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:38,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:38,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:38,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 10:22:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:38,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:38,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:38,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:22:38,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:38,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:22:38,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:38,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:38,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:22:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:38,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:38,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:38,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:22:38,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:38,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:22:38,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:38,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:38,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:22:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:38,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:38,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:38,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 10:22:38,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:38,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 10:22:38,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 10:22:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:22:38,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 10:22:38,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:38,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 10:22:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:38,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:38,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:38,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:38,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 10:22:38,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:22:38,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 10:22:38,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 10:22:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:22:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 10:22:38,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:38,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 10:22:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:38,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:38,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:39,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:39,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 10:22:39,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:22:39,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 584 [2020-10-27 10:22:39,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:39,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 10:22:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-27 10:22:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 10:22:39,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:39,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 10:22:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:39,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:39,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:39,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 10:22:39,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:39,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 10:22:39,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:39,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:39,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:39,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:22:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:39,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:39,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:39,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:22:39,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:39,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:22:39,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:39,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:39,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 10:22:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:39,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:39,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:39,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 10:22:39,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:39,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-27 10:22:39,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 10:22:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 10:22:39,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:39,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:22:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:39,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:39,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:39,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 10:22:39,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:39,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-27 10:22:39,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:39,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 10:22:39,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:39,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 10:22:39,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:40,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:22:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:40,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:40,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:40,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 10:22:40,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:40,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 10:22:40,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:40,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 10:22:40,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:40,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 10:22:40,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:40,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 10:22:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:40,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:40,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:40,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:22:40,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:40,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:22:40,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:40,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:40,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:40,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:40,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:40,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:22:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:40,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:40,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:40,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:22:40,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:40,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 10:22:40,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:40,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:22:40,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:40,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 10:22:40,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:40,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:22:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:40,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:40,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:40,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:22:40,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:40,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 10:22:40,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:22:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:40,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 10:22:40,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:40,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 10:22:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:40,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:40,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:40,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:22:40,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:40,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:22:40,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:40,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:22:40,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:40,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:22:40,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:40,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 10:22:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:40,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:40,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:40,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 10:22:40,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:40,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:22:40,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 10:22:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:40,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:40,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:22:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:40,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:40,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:40,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 10:22:40,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:40,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:22:40,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:40,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:40,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:40,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:40,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:40,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:22:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:40,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:40,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:40,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:22:40,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:40,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:22:40,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:22:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:40,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:40,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-27 10:22:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:22:40,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:22:40,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:22:40,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:22:40,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:22:40,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:22:40,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:22:40,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:22:40,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:22:40,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:22:40,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:22:40,770 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-27 10:22:40,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303354013] [2020-10-27 10:22:40,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 10:22:40,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-27 10:22:40,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145887710] [2020-10-27 10:22:40,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-27 10:22:40,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:22:40,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-27 10:22:40,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2020-10-27 10:22:40,773 INFO L87 Difference]: Start difference. First operand 847 states and 1104 transitions. Second operand 28 states. [2020-10-27 10:22:58,293 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-27 10:22:58,973 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-27 10:22:59,820 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-27 10:23:05,134 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2020-10-27 10:23:19,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:23:19,454 INFO L93 Difference]: Finished difference Result 2005 states and 2760 transitions. [2020-10-27 10:23:19,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-27 10:23:19,455 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 145 [2020-10-27 10:23:19,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:23:19,463 INFO L225 Difference]: With dead ends: 2005 [2020-10-27 10:23:19,463 INFO L226 Difference]: Without dead ends: 1172 [2020-10-27 10:23:19,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=422, Invalid=3610, Unknown=0, NotChecked=0, Total=4032 [2020-10-27 10:23:19,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2020-10-27 10:23:19,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 854. [2020-10-27 10:23:19,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 854 states. [2020-10-27 10:23:19,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1111 transitions. [2020-10-27 10:23:19,607 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1111 transitions. Word has length 145 [2020-10-27 10:23:19,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:23:19,607 INFO L481 AbstractCegarLoop]: Abstraction has 854 states and 1111 transitions. [2020-10-27 10:23:19,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-27 10:23:19,608 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1111 transitions. [2020-10-27 10:23:19,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-27 10:23:19,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:23:19,614 INFO L422 BasicCegarLoop]: trace histogram [8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:23:19,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 10:23:19,614 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:23:19,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:23:19,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1454200305, now seen corresponding path program 1 times [2020-10-27 10:23:19,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:23:19,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [859165371] [2020-10-27 10:23:19,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:23:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:19,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:19,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:19,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:21,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:24,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:24,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-27 10:23:24,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 10:23:24,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 10:23:24,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:24,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-27 10:23:24,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:23:24,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-27 10:23:24,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:25,291 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-27 10:23:25,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:23:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:25,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:25,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:25,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:23:25,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:25,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 10:23:25,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:25,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:23:25,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:25,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 10:23:25,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:25,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:23:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:25,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:25,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:25,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:23:25,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:25,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:23:25,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:23:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:23:25,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:25,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 10:23:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:25,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:25,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:25,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:23:25,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:25,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:23:25,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:25,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:23:25,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:25,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 10:23:25,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:25,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:23:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:25,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:25,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:25,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:23:25,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:25,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:23:25,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:25,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:23:25,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:25,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:23:25,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:25,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:23:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:25,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:25,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:25,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:23:25,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:25,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 10:23:25,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:25,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:23:25,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:25,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 10:23:25,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:25,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 10:23:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:25,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:25,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:25,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 10:23:25,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:25,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 10:23:25,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:25,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:23:25,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:25,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 10:23:25,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:25,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-27 10:23:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:25,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:26,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:26,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:28,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:30,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:30,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 10:23:30,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 10:23:30,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 10:23:30,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:30,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 10:23:30,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:23:30,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-27 10:23:30,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:31,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 10:23:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:31,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:31,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:31,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 10:23:31,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:31,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 10:23:31,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:31,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:23:31,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:31,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 10:23:31,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:31,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:23:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:31,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:31,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:31,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:23:31,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:31,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:23:31,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:31,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:23:31,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:31,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:23:31,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:31,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 10:23:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:31,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:31,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:31,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 10:23:31,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:31,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 492 [2020-10-27 10:23:31,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:31,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 10:23:31,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 10:23:31,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 10:23:31,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:32,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:23:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:32,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:32,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:32,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 10:23:32,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:32,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-27 10:23:32,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:32,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 10:23:32,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 10:23:32,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 10:23:32,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:33,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:23:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:33,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:33,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:33,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 10:23:33,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:33,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-27 10:23:33,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:33,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 10:23:33,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 10:23:33,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 10:23:33,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:33,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 10:23:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:33,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:33,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:33,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:23:33,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:33,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 10:23:33,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 10:23:33,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 10:23:33,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 10:23:33,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:33,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 10:23:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:33,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:33,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:33,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:23:33,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:33,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:23:33,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:33,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:23:33,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:33,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:23:33,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:33,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 10:23:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:33,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:33,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:33,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 10:23:33,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:33,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 10:23:33,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:33,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 10:23:33,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 10:23:33,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 10:23:33,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:33,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 10:23:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:33,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:33,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:33,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:23:33,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:33,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:23:33,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:33,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:23:33,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:33,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:23:33,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:33,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 10:23:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:33,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:33,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:33,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:23:33,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:33,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 10:23:33,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:33,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 10:23:33,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 10:23:33,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 10:23:33,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:34,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 10:23:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:34,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:34,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:34,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:23:34,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:34,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 10:23:34,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:34,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:23:34,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 10:23:34,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 10:23:34,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:34,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 10:23:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:34,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:34,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:34,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:23:34,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:34,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:23:34,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:23:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:23:34,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:34,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 10:23:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:34,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:34,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:34,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 10:23:34,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:34,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:23:34,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:34,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:23:34,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:34,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 10:23:34,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:34,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:23:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:34,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:34,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:34,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:23:34,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:34,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:23:34,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:34,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:23:34,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:34,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:23:34,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:34,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 10:23:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:34,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:34,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:34,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 10:23:34,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:34,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:23:34,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:34,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:23:34,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 10:23:34,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:23:34,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:34,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:23:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:34,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:34,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:34,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 10:23:34,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:34,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:23:34,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:34,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:23:34,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:34,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:23:34,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:34,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:23:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:34,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:34,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:34,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:23:34,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:34,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 10:23:34,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:34,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:23:34,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:23:34,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:23:34,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:34,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-27 10:23:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:23:34,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:23:34,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:23:34,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:23:34,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:23:34,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 10:23:34,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:23:34,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:23:34,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:23:34,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:23:34,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:23:34,419 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-27 10:23:34,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [859165371] [2020-10-27 10:23:34,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 10:23:34,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-27 10:23:34,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425872010] [2020-10-27 10:23:34,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-27 10:23:34,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:23:34,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-27 10:23:34,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1141, Unknown=0, NotChecked=0, Total=1260 [2020-10-27 10:23:34,422 INFO L87 Difference]: Start difference. First operand 854 states and 1111 transitions. Second operand 36 states. [2020-10-27 10:23:48,661 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-27 10:23:51,806 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-27 10:23:52,992 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-27 10:23:53,983 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 270