/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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 08:39:20,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 08:39:20,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 08:39:20,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 08:39:20,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 08:39:20,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 08:39:20,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 08:39:20,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 08:39:20,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 08:39:20,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 08:39:20,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 08:39:20,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 08:39:20,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 08:39:20,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 08:39:20,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 08:39:20,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 08:39:20,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 08:39:20,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 08:39:20,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 08:39:20,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 08:39:20,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 08:39:20,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 08:39:20,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 08:39:20,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 08:39:20,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 08:39:20,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 08:39:20,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 08:39:20,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 08:39:20,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 08:39:20,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 08:39:20,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 08:39:20,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 08:39:20,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 08:39:20,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 08:39:20,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 08:39:20,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 08:39:20,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 08:39:20,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 08:39:20,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 08:39:20,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 08:39:20,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 08:39:20,729 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 08:39:20,785 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 08:39:20,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 08:39:20,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 08:39:20,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 08:39:20,788 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 08:39:20,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 08:39:20,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 08:39:20,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 08:39:20,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 08:39:20,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 08:39:20,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 08:39:20,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 08:39:20,793 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 08:39:20,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 08:39:20,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 08:39:20,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 08:39:20,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 08:39:20,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 08:39:20,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 08:39:20,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 08:39:20,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 08:39:20,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 08:39:20,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 08:39:20,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 08:39:20,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 08:39:20,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 08:39:20,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-27 08:39:20,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 08:39:21,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 08:39:21,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 08:39:21,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 08:39:21,317 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 08:39:21,319 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 08:39:21,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2020-10-27 08:39:21,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82fa1e82e/2f43797ba54e4c2694ee8aa40df58674/FLAG733bda102 [2020-10-27 08:39:22,299 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 08:39:22,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2020-10-27 08:39:22,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82fa1e82e/2f43797ba54e4c2694ee8aa40df58674/FLAG733bda102 [2020-10-27 08:39:22,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82fa1e82e/2f43797ba54e4c2694ee8aa40df58674 [2020-10-27 08:39:22,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 08:39:22,814 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 08:39:22,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 08:39:22,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 08:39:22,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 08:39:22,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:39:22" (1/1) ... [2020-10-27 08:39:22,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71d50217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:39:22, skipping insertion in model container [2020-10-27 08:39:22,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:39:22" (1/1) ... [2020-10-27 08:39:22,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 08:39:22,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 08:39:24,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 08:39:24,343 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 08:39:24,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 08:39:25,080 INFO L208 MainTranslator]: Completed translation [2020-10-27 08:39:25,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:39:25 WrapperNode [2020-10-27 08:39:25,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 08:39:25,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 08:39:25,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 08:39:25,082 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 08:39:25,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:39:25" (1/1) ... [2020-10-27 08:39:25,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:39:25" (1/1) ... [2020-10-27 08:39:25,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:39:25" (1/1) ... [2020-10-27 08:39:25,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:39:25" (1/1) ... [2020-10-27 08:39:25,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:39:25" (1/1) ... [2020-10-27 08:39:25,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:39:25" (1/1) ... [2020-10-27 08:39:25,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:39:25" (1/1) ... [2020-10-27 08:39:25,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 08:39:25,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 08:39:25,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 08:39:25,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 08:39:25,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:39:25" (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 08:39:25,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 08:39:25,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 08:39:25,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-27 08:39:25,460 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 08:39:25,460 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-27 08:39:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-27 08:39:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-27 08:39:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2020-10-27 08:39:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-27 08:39:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-27 08:39:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-27 08:39:25,462 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 08:39:25,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 08:39:25,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-27 08:39:25,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-27 08:39:25,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-27 08:39:25,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-27 08:39:25,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-27 08:39:25,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-27 08:39:25,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-27 08:39:25,463 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2020-10-27 08:39:25,463 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2020-10-27 08:39:25,463 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2020-10-27 08:39:25,464 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_up [2020-10-27 08:39:25,464 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocm_to_gigaset [2020-10-27 08:39:25,464 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2020-10-27 08:39:25,464 INFO L138 BoogieDeclarations]: Found implementation of procedure set_value [2020-10-27 08:39:25,464 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2020-10-27 08:39:25,464 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2020-10-27 08:39:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2020-10-27 08:39:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2020-10-27 08:39:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_modem_fill [2020-10-27 08:39:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_read_int_callback [2020-10-27 08:39:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_bulk_callback [2020-10-27 08:39:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure send_cb [2020-10-27 08:39:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_cmd [2020-10-27 08:39:25,466 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2020-10-27 08:39:25,466 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2020-10-27 08:39:25,466 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2020-10-27 08:39:25,466 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2020-10-27 08:39:25,466 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2020-10-27 08:39:25,466 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2020-10-27 08:39:25,466 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2020-10-27 08:39:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2020-10-27 08:39:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure write_modem [2020-10-27 08:39:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_probe [2020-10-27 08:39:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2020-10-27 08:39:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2020-10-27 08:39:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2020-10-27 08:39:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_pre_reset [2020-10-27 08:39:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gigaset_init [2020-10-27 08:39:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gigaset_exit [2020-10-27 08:39:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2020-10-27 08:39:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gigaset_ops_1 [2020-10-27 08:39:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 08:39:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-27 08:39:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2020-10-27 08:39:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2020-10-27 08:39:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2020-10-27 08:39:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2020-10-27 08:39:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_7 [2020-10-27 08:39:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2020-10-27 08:39:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2020-10-27 08:39:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_10 [2020-10-27 08:39:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_11 [2020-10-27 08:39:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2020-10-27 08:39:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_13 [2020-10-27 08:39:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_14 [2020-10-27 08:39:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_16 [2020-10-27 08:39:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_17 [2020-10-27 08:39:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_19 [2020-10-27 08:39:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_20 [2020-10-27 08:39:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_21 [2020-10-27 08:39:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_24 [2020-10-27 08:39:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_25 [2020-10-27 08:39:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_26 [2020-10-27 08:39:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-27 08:39:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-27 08:39:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-27 08:39:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-27 08:39:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-27 08:39:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-27 08:39:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-27 08:39:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-27 08:39:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-27 08:39:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-27 08:39:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-27 08:39:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-27 08:39:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-27 08:39:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-27 08:39:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-27 08:39:25,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-27 08:39:25,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 08:39:25,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __tasklet_schedule [2020-10-27 08:39:25,474 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-27 08:39:25,474 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-27 08:39:25,474 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-27 08:39:25,475 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-27 08:39:25,475 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-10-27 08:39:25,475 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2020-10-27 08:39:25,475 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2020-10-27 08:39:25,475 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2020-10-27 08:39:25,475 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_blockdriver [2020-10-27 08:39:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2020-10-27 08:39:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_fill_inbuf [2020-10-27 08:39:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2020-10-27 08:39:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2020-10-27 08:39:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcs [2020-10-27 08:39:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initdriver [2020-10-27 08:39:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_input [2020-10-27 08:39:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_send_skb [2020-10-27 08:39:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_shutdown [2020-10-27 08:39:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_skb_sent [2020-10-27 08:39:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_start [2020-10-27 08:39:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_stop [2020-10-27 08:39:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 08:39:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-10-27 08:39:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-10-27 08:39:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-27 08:39:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2020-10-27 08:39:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-27 08:39:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2020-10-27 08:39:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2020-10-27 08:39:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-10-27 08:39:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-27 08:39:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-27 08:39:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-27 08:39:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-27 08:39:25,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-27 08:39:25,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-27 08:39:25,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-27 08:39:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 08:39:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 08:39:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 08:39:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 08:39:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 08:39:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 08:39:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-27 08:39:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-27 08:39:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-27 08:39:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-27 08:39:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-27 08:39:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-27 08:39:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-27 08:39:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-27 08:39:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-27 08:39:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure __tasklet_schedule [2020-10-27 08:39:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2020-10-27 08:39:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2020-10-27 08:39:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2020-10-27 08:39:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-27 08:39:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2020-10-27 08:39:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2020-10-27 08:39:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-27 08:39:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_17 [2020-10-27 08:39:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2020-10-27 08:39:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-27 08:39:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_7 [2020-10-27 08:39:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_16 [2020-10-27 08:39:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_21 [2020-10-27 08:39:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-27 08:39:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_25 [2020-10-27 08:39:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-27 08:39:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_26 [2020-10-27 08:39:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2020-10-27 08:39:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_11 [2020-10-27 08:39:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2020-10-27 08:39:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_10 [2020-10-27 08:39:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_13 [2020-10-27 08:39:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_14 [2020-10-27 08:39:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_19 [2020-10-27 08:39:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_20 [2020-10-27 08:39:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2020-10-27 08:39:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2020-10-27 08:39:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2020-10-27 08:39:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2020-10-27 08:39:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_24 [2020-10-27 08:39:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-27 08:39:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-10-27 08:39:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-27 08:39:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 08:39:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-27 08:39:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-27 08:39:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-27 08:39:25,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-27 08:39:25,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-27 08:39:25,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-27 08:39:25,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-27 08:39:25,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-27 08:39:25,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-27 08:39:25,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-27 08:39:25,488 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-27 08:39:25,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 08:39:25,489 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-27 08:39:25,489 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-27 08:39:25,489 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 08:39:25,489 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 08:39:25,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 08:39:25,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-27 08:39:25,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 08:39:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 08:39:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 08:39:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-27 08:39:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-27 08:39:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-27 08:39:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-27 08:39:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-27 08:39:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-27 08:39:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-27 08:39:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2020-10-27 08:39:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gigaset_ops_1 [2020-10-27 08:39:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2020-10-27 08:39:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-27 08:39:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2020-10-27 08:39:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-27 08:39:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 08:39:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-10-27 08:39:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2020-10-27 08:39:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_send_skb [2020-10-27 08:39:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_input [2020-10-27 08:39:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_skb_sent [2020-10-27 08:39:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initdriver [2020-10-27 08:39:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2020-10-27 08:39:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_blockdriver [2020-10-27 08:39:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcs [2020-10-27 08:39:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2020-10-27 08:39:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_start [2020-10-27 08:39:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_stop [2020-10-27 08:39:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_shutdown [2020-10-27 08:39:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2020-10-27 08:39:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2020-10-27 08:39:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2020-10-27 08:39:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_up [2020-10-27 08:39:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_fill_inbuf [2020-10-27 08:39:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_probe [2020-10-27 08:39:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2020-10-27 08:39:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2020-10-27 08:39:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2020-10-27 08:39:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_pre_reset [2020-10-27 08:39:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure tiocm_to_gigaset [2020-10-27 08:39:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2020-10-27 08:39:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 08:39:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure set_value [2020-10-27 08:39:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2020-10-27 08:39:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2020-10-27 08:39:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2020-10-27 08:39:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2020-10-27 08:39:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure write_modem [2020-10-27 08:39:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure send_cb [2020-10-27 08:39:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_modem_fill [2020-10-27 08:39:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_read_int_callback [2020-10-27 08:39:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_bulk_callback [2020-10-27 08:39:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 08:39:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_cmd [2020-10-27 08:39:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2020-10-27 08:39:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2020-10-27 08:39:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2020-10-27 08:39:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 08:39:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2020-10-27 08:39:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2020-10-27 08:39:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2020-10-27 08:39:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2020-10-27 08:39:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2020-10-27 08:39:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gigaset_init [2020-10-27 08:39:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gigaset_exit [2020-10-27 08:39:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-10-27 08:39:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-10-27 08:39:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 08:39:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 08:39:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 08:39:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-27 08:39:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-27 08:39:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-27 08:39:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-27 08:39:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-27 08:39:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-27 08:39:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-27 08:39:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-27 08:39:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 08:39:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 08:39:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 08:39:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-27 08:39:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 08:39:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 08:39:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-27 08:39:25,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-27 08:39:25,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-27 08:39:27,208 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-27 08:39:32,462 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-27 08:39:33,736 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 08:39:33,736 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 08:39:33,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:39:33 BoogieIcfgContainer [2020-10-27 08:39:33,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 08:39:33,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 08:39:33,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 08:39:33,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 08:39:33,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:39:22" (1/3) ... [2020-10-27 08:39:33,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772cce2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:39:33, skipping insertion in model container [2020-10-27 08:39:33,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:39:25" (2/3) ... [2020-10-27 08:39:33,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772cce2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:39:33, skipping insertion in model container [2020-10-27 08:39:33,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:39:33" (3/3) ... [2020-10-27 08:39:33,749 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2020-10-27 08:39:33,761 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 08:39:33,767 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 08:39:33,780 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 08:39:33,823 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 08:39:33,823 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 08:39:33,823 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 08:39:33,823 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 08:39:33,823 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 08:39:33,824 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 08:39:33,824 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 08:39:33,824 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 08:39:33,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states. [2020-10-27 08:39:33,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-27 08:39:33,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:39:33,922 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:33,925 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:39:33,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:39:33,932 INFO L82 PathProgramCache]: Analyzing trace with hash 470186598, now seen corresponding path program 1 times [2020-10-27 08:39:33,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:39:33,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602242526] [2020-10-27 08:39:33,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:39:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:39:34,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:39:36,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:39:39,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:39:39,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 08:39:39,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:39:39,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5158 [2020-10-27 08:39:39,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:39:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 08:39:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 08:39:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-27 08:39:39,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 08:39:44,087 WARN L193 SmtUtils]: Spent 4.22 s on a formula simplification that was a NOOP. DAG size: 577 [2020-10-27 08:39:44,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:39:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:39:44,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:39:44,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:39:44,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:39:44,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:39:44,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 573 [2020-10-27 08:39:44,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:39:44,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:39:44,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:39:44,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:39:44,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:39:44,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:39:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:39:44,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:39:44,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:39:44,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:39:44,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:39:44,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 08:39:44,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:39:44,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:39:44,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:39:44,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:39:44,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:39:44,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 08:39:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:39:44,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:39:44,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:39:44,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:39:44,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:39:44,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 08:39:44,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:39:44,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:39:44,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:39:44,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:39:44,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:39:44,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 08:39:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:39:44,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:39:44,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:39:44,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:39:44,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:39:44,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 08:39:44,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:39:44,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:39:44,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:39:44,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:39:44,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 08:39:44,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 08:39:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:39:45,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:39:45,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:39:45,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:39:45,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:39:45,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 08:39:45,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:39:45,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:39:45,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:39:45,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:39:45,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:39:45,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 08:39:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:39:45,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:39:45,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:39:45,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:39:45,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:39:45,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 08:39:45,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:39:45,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:39:45,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:39:45,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:39:45,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:39:45,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 08:39:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:39:45,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:39:45,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:39:45,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 08:39:45,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:39:45,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 08:39:45,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:39:45,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:39:45,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:39:45,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 08:39:45,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:39:45,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 08:39:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:39:45,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:39:45,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:39:45,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:39:45,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:39:45,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:39:45,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 08:39:45,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:39:45,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:39:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:39:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:39:45,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:39:45,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 08:39:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:39:45,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:39:45,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:39:45,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 08:39:45,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:39:45,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 08:39:45,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:39:45,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:39:45,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:39:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 08:39:45,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:39:45,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:39:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:39:45,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:39:45,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:39:45,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 08:39:45,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:39:45,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 08:39:45,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:39:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:39:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:39:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:39:45,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:39:45,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:39:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:39:45,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:39:45,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:39:45,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:39:45,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:39:45,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 08:39:45,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:39:45,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:39:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:39:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:39:45,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:39:45,538 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-27 08:39:45,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602242526] [2020-10-27 08:39:45,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:39:45,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 08:39:45,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322569582] [2020-10-27 08:39:45,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 08:39:45,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:39:45,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 08:39:45,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-27 08:39:45,569 INFO L87 Difference]: Start difference. First operand 1115 states. Second operand 8 states. [2020-10-27 08:39:52,104 WARN L193 SmtUtils]: Spent 4.38 s on a formula simplification that was a NOOP. DAG size: 580 [2020-10-27 08:40:37,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:40:37,486 INFO L93 Difference]: Finished difference Result 3492 states and 5022 transitions. [2020-10-27 08:40:37,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 08:40:37,489 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-27 08:40:37,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:40:37,541 INFO L225 Difference]: With dead ends: 3492 [2020-10-27 08:40:37,542 INFO L226 Difference]: Without dead ends: 2534 [2020-10-27 08:40:37,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-10-27 08:40:37,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2534 states. [2020-10-27 08:40:38,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2534 to 1961. [2020-10-27 08:40:38,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1961 states. [2020-10-27 08:40:38,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2644 transitions. [2020-10-27 08:40:38,494 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2644 transitions. Word has length 79 [2020-10-27 08:40:38,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:40:38,495 INFO L481 AbstractCegarLoop]: Abstraction has 1961 states and 2644 transitions. [2020-10-27 08:40:38,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 08:40:38,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2644 transitions. [2020-10-27 08:40:38,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-27 08:40:38,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:40:38,508 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:38,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 08:40:38,509 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:40:38,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:40:38,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1033657607, now seen corresponding path program 1 times [2020-10-27 08:40:38,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:40:38,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554829571] [2020-10-27 08:40:38,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:40:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:40:38,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:40:39,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:40:42,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:40:42,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-27 08:40:42,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:40:42,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3488 [2020-10-27 08:40:42,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:40:42,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 08:40:42,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 08:40:42,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-27 08:40:42,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:40:46,509 WARN L193 SmtUtils]: Spent 4.21 s on a formula simplification that was a NOOP. DAG size: 577 [2020-10-27 08:40:46,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:40:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:40:46,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:40:47,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:40:47,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:40:47,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:40:47,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 436 [2020-10-27 08:40:47,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:40:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:40:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:40:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:40:47,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:40:47,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:40:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:40:47,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:40:47,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:40:47,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:40:47,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:40:47,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 08:40:47,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:40:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:40:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:40:47,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:40:47,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:40:47,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 08:40:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:40:47,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:40:47,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:40:47,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:40:47,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:40:47,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 08:40:47,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:40:47,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:40:47,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:40:47,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:40:47,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:40:47,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 08:40:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:40:47,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:40:47,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:40:47,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:40:47,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:40:47,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 08:40:47,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:40:47,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:40:47,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:40:47,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:40:47,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:40:47,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 08:40:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:40:47,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:40:47,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:40:47,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:40:47,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:40:47,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 08:40:47,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:40:47,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:40:47,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:40:47,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:40:47,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:40:47,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 08:40:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:40:47,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:40:47,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:40:47,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:40:47,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:40:47,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 08:40:47,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:40:47,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:40:47,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:40:47,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:40:47,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:40:47,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 08:40:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:40:47,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:40:47,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:40:47,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 08:40:47,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:40:47,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 08:40:47,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:40:47,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:40:47,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:40:47,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 08:40:47,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:40:47,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 08:40:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:40:47,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:40:47,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:40:47,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:40:47,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:40:47,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:40:47,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 08:40:47,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:40:47,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:40:47,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:40:47,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:40:47,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:40:47,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 08:40:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:40:47,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:40:47,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:40:47,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 08:40:47,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:40:47,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 08:40:47,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:40:47,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:40:47,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:40:47,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 08:40:47,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:40:47,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:40:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:40:47,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:40:47,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:40:47,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 08:40:47,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:40:47,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 08:40:47,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:40:47,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:40:47,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:40:47,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:40:47,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:40:47,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:40:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:40:47,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:40:47,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:40:47,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:40:47,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:40:47,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 08:40:47,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:40:47,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:40:47,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:40:47,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:40:47,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:40:47,675 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-27 08:40:47,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554829571] [2020-10-27 08:40:47,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:40:47,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 08:40:47,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080200624] [2020-10-27 08:40:47,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 08:40:47,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:40:47,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 08:40:47,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-27 08:40:47,679 INFO L87 Difference]: Start difference. First operand 1961 states and 2644 transitions. Second operand 8 states. [2020-10-27 08:40:54,112 WARN L193 SmtUtils]: Spent 4.34 s on a formula simplification that was a NOOP. DAG size: 580 [2020-10-27 08:41:47,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:41:47,706 INFO L93 Difference]: Finished difference Result 6773 states and 9568 transitions. [2020-10-27 08:41:47,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 08:41:47,713 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-27 08:41:47,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:41:47,747 INFO L225 Difference]: With dead ends: 6773 [2020-10-27 08:41:47,748 INFO L226 Difference]: Without dead ends: 4837 [2020-10-27 08:41:47,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-10-27 08:41:47,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4837 states. [2020-10-27 08:41:48,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4837 to 4057. [2020-10-27 08:41:48,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4057 states. [2020-10-27 08:41:48,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4057 states to 4057 states and 5565 transitions. [2020-10-27 08:41:48,725 INFO L78 Accepts]: Start accepts. Automaton has 4057 states and 5565 transitions. Word has length 80 [2020-10-27 08:41:48,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:41:48,726 INFO L481 AbstractCegarLoop]: Abstraction has 4057 states and 5565 transitions. [2020-10-27 08:41:48,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 08:41:48,726 INFO L276 IsEmpty]: Start isEmpty. Operand 4057 states and 5565 transitions. [2020-10-27 08:41:48,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-27 08:41:48,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:41:48,730 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:41:48,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 08:41:48,730 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:41:48,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:41:48,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1326066889, now seen corresponding path program 1 times [2020-10-27 08:41:48,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:41:48,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788597140] [2020-10-27 08:41:48,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:41:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:41:48,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:41:49,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:41:52,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:41:52,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 08:41:52,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:41:52,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3396 [2020-10-27 08:41:52,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:41:52,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 08:41:52,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 08:41:52,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-27 08:41:52,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:41:56,756 WARN L193 SmtUtils]: Spent 4.36 s on a formula simplification that was a NOOP. DAG size: 577 [2020-10-27 08:41:56,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:41:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:41:56,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:41:57,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:41:57,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:41:57,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:41:57,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-10-27 08:41:57,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:41:57,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:41:57,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:41:57,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:41:57,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:41:57,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:41:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:41:57,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:41:57,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:41:57,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:41:57,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:41:57,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 08:41:57,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:41:57,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:41:57,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:41:57,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:41:57,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:41:57,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 08:41:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:41:57,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:41:57,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:41:57,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:41:57,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:41:57,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 08:41:57,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:41:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:41:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:41:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:41:57,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:41:57,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 08:41:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:41:57,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:41:57,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:41:57,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:41:57,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:41:57,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 08:41:57,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:41:57,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:41:57,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:41:57,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:41:57,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:41:57,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 08:41:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:41:57,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:41:57,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:41:57,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:41:57,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:41:57,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 08:41:57,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:41:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:41:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:41:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:41:57,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:41:57,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 08:41:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:41:57,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:41:57,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:41:57,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:41:57,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:41:57,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 08:41:57,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:41:57,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:41:57,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:41:57,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:41:57,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:41:57,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 08:41:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:41:57,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:41:57,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:41:57,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 08:41:57,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:41:57,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 08:41:57,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:41:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:41:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:41:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 08:41:57,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:41:57,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 08:41:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:41:57,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:41:57,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:41:57,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:41:57,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:41:57,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:41:57,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 08:41:57,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:41:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:41:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:41:57,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:41:57,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:41:57,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 08:41:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:41:57,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:41:57,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:41:57,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 08:41:57,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:41:57,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 08:41:57,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:41:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:41:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:41:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 08:41:57,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:41:57,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:41:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:41:57,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:41:57,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:41:57,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 08:41:57,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:41:57,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 08:41:57,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:41:57,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:41:57,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:41:57,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:41:57,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:41:57,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:41:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:41:57,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:41:57,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:41:57,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:41:57,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:41:57,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 08:41:57,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:41:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:41:57,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:41:57,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:41:57,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:41:57,939 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-27 08:41:57,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788597140] [2020-10-27 08:41:57,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:41:57,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 08:41:57,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091794272] [2020-10-27 08:41:57,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 08:41:57,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:41:57,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 08:41:57,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-27 08:41:57,944 INFO L87 Difference]: Start difference. First operand 4057 states and 5565 transitions. Second operand 8 states. [2020-10-27 08:42:04,806 WARN L193 SmtUtils]: Spent 4.72 s on a formula simplification that was a NOOP. DAG size: 580 [2020-10-27 08:42:59,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:42:59,659 INFO L93 Difference]: Finished difference Result 4837 states and 6807 transitions. [2020-10-27 08:42:59,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 08:42:59,662 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-27 08:42:59,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:42:59,695 INFO L225 Difference]: With dead ends: 4837 [2020-10-27 08:42:59,695 INFO L226 Difference]: Without dead ends: 4832 [2020-10-27 08:42:59,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-10-27 08:42:59,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4832 states. [2020-10-27 08:43:01,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4832 to 4058. [2020-10-27 08:43:01,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4058 states. [2020-10-27 08:43:01,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4058 states to 4058 states and 5566 transitions. [2020-10-27 08:43:01,155 INFO L78 Accepts]: Start accepts. Automaton has 4058 states and 5566 transitions. Word has length 81 [2020-10-27 08:43:01,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:43:01,156 INFO L481 AbstractCegarLoop]: Abstraction has 4058 states and 5566 transitions. [2020-10-27 08:43:01,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 08:43:01,156 INFO L276 IsEmpty]: Start isEmpty. Operand 4058 states and 5566 transitions. [2020-10-27 08:43:01,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-27 08:43:01,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:43:01,160 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:01,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 08:43:01,161 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:43:01,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:43:01,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1805497226, now seen corresponding path program 1 times [2020-10-27 08:43:01,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:43:01,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546035714] [2020-10-27 08:43:01,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:43:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:43:01,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:43:01,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:43:03,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:43:03,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-27 08:43:03,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:43:03,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1884 [2020-10-27 08:43:03,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:43:03,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:43:03,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 08:43:03,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 08:43:03,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:43:07,796 WARN L193 SmtUtils]: Spent 4.53 s on a formula simplification that was a NOOP. DAG size: 577 [2020-10-27 08:43:07,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:43:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:43:07,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:43:08,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:43:08,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:43:08,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:43:08,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-27 08:43:08,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:43:08,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:43:08,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:43:08,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:43:08,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:43:08,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:43:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:43:08,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:43:08,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:43:08,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:43:08,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:43:08,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 08:43:08,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:43:08,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:43:08,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:43:08,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:43:08,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:43:08,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 08:43:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:43:08,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:43:08,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:43:08,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:43:08,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:43:08,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 08:43:08,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:43:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:43:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:43:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:43:08,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:43:08,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 08:43:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:43:08,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:43:08,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:43:08,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:43:08,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:43:08,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 08:43:08,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:43:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:43:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:43:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:43:08,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:43:08,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 08:43:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:43:08,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:43:08,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:43:08,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:43:08,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:43:08,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 08:43:08,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:43:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:43:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:43:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:43:08,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:43:08,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 08:43:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:43:08,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:43:08,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:43:08,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:43:08,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:43:08,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 08:43:08,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:43:08,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:43:08,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:43:08,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:43:08,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:43:08,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 08:43:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:43:08,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:43:08,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:43:08,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 08:43:08,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:43:08,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 08:43:08,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:43:08,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:43:08,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:43:08,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 08:43:08,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:43:08,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 08:43:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:43:08,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:43:08,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:43:08,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:43:08,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:43:08,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 08:43:08,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 08:43:08,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:43:08,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:43:08,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:43:08,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 08:43:08,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:43:08,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 08:43:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:43:08,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:43:08,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:43:08,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 08:43:08,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:43:08,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 08:43:08,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:43:08,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:43:08,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:43:08,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 08:43:08,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:43:08,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:43:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:43:08,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:43:08,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:43:08,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 08:43:08,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:43:08,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 08:43:08,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:43:08,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:43:08,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:43:08,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:43:08,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:43:08,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 08:43:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:43:08,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:43:08,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:43:08,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 08:43:08,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:43:08,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 08:43:08,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:43:08,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:43:08,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:43:08,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:43:08,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:43:08,740 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-27 08:43:08,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546035714] [2020-10-27 08:43:08,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:43:08,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 08:43:08,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491220891] [2020-10-27 08:43:08,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 08:43:08,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:43:08,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 08:43:08,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-27 08:43:08,743 INFO L87 Difference]: Start difference. First operand 4058 states and 5566 transitions. Second operand 8 states.