/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block 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=NARROWEST --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 -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 0.1.25-adbd35c [2020-10-13 17:50:57,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 17:50:57,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 17:50:57,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 17:50:57,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 17:50:57,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 17:50:57,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 17:50:57,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 17:50:57,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 17:50:57,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 17:50:58,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 17:50:58,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 17:50:58,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 17:50:58,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 17:50:58,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 17:50:58,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 17:50:58,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 17:50:58,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 17:50:58,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 17:50:58,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 17:50:58,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 17:50:58,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 17:50:58,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 17:50:58,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 17:50:58,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 17:50:58,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 17:50:58,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 17:50:58,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 17:50:58,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 17:50:58,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 17:50:58,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 17:50:58,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 17:50:58,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 17:50:58,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 17:50:58,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 17:50:58,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 17:50:58,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 17:50:58,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 17:50:58,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 17:50:58,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 17:50:58,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 17:50:58,038 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 [2020-10-13 17:50:58,077 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 17:50:58,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 17:50:58,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 17:50:58,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 17:50:58,080 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 17:50:58,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 17:50:58,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 17:50:58,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 17:50:58,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 17:50:58,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 17:50:58,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 17:50:58,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 17:50:58,082 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 17:50:58,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 17:50:58,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 17:50:58,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 17:50:58,083 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 17:50:58,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 17:50:58,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 17:50:58,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 17:50:58,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 17:50:58,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 17:50:58,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 17:50:58,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 17:50:58,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 17:50:58,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 17:50:58,085 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 17:50:58,085 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> 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=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 17:50:58,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 17:50:58,443 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 17:50:58,446 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 17:50:58,448 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 17:50:58,448 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 17:50:58,449 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2020-10-13 17:50:58,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1ee26158/fc6ccba6b325430db0a9f092cfcb4bfb/FLAGf6b9fa288 [2020-10-13 17:50:59,387 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 17:50:59,388 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2020-10-13 17:50:59,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1ee26158/fc6ccba6b325430db0a9f092cfcb4bfb/FLAGf6b9fa288 [2020-10-13 17:50:59,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1ee26158/fc6ccba6b325430db0a9f092cfcb4bfb [2020-10-13 17:50:59,937 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 17:50:59,939 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 17:50:59,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 17:50:59,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 17:50:59,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 17:50:59,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:50:59" (1/1) ... [2020-10-13 17:50:59,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6340f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:50:59, skipping insertion in model container [2020-10-13 17:50:59,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:50:59" (1/1) ... [2020-10-13 17:50:59,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 17:51:00,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 17:51:01,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:51:01,808 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 17:51:02,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:51:02,484 INFO L208 MainTranslator]: Completed translation [2020-10-13 17:51:02,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:51:02 WrapperNode [2020-10-13 17:51:02,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 17:51:02,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 17:51:02,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 17:51:02,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 17:51:02,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:51:02" (1/1) ... [2020-10-13 17:51:02,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:51:02" (1/1) ... [2020-10-13 17:51:02,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:51:02" (1/1) ... [2020-10-13 17:51:02,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:51:02" (1/1) ... [2020-10-13 17:51:02,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:51:02" (1/1) ... [2020-10-13 17:51:02,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:51:02" (1/1) ... [2020-10-13 17:51:02,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:51:02" (1/1) ... [2020-10-13 17:51:02,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 17:51:02,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 17:51:02,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 17:51:02,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 17:51:02,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:51:02" (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 [2020-10-13 17:51:02,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 17:51:02,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 17:51:02,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-13 17:51:02,908 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-13 17:51:02,909 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 17:51:02,909 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-13 17:51:02,910 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2020-10-13 17:51:02,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-13 17:51:02,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 17:51:02,911 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 17:51:02,912 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 17:51:02,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 17:51:02,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 17:51:02,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 17:51:02,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 17:51:02,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 17:51:02,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 17:51:02,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 17:51:02,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 17:51:02,916 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2020-10-13 17:51:02,916 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2020-10-13 17:51:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2020-10-13 17:51:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_up [2020-10-13 17:51:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocm_to_gigaset [2020-10-13 17:51:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2020-10-13 17:51:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure set_value [2020-10-13 17:51:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2020-10-13 17:51:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2020-10-13 17:51:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2020-10-13 17:51:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2020-10-13 17:51:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_modem_fill [2020-10-13 17:51:02,919 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_read_int_callback [2020-10-13 17:51:02,919 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_bulk_callback [2020-10-13 17:51:02,919 INFO L138 BoogieDeclarations]: Found implementation of procedure send_cb [2020-10-13 17:51:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_cmd [2020-10-13 17:51:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2020-10-13 17:51:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2020-10-13 17:51:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2020-10-13 17:51:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2020-10-13 17:51:02,921 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2020-10-13 17:51:02,921 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2020-10-13 17:51:02,921 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2020-10-13 17:51:02,921 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2020-10-13 17:51:02,921 INFO L138 BoogieDeclarations]: Found implementation of procedure write_modem [2020-10-13 17:51:02,921 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_probe [2020-10-13 17:51:02,921 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2020-10-13 17:51:02,922 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2020-10-13 17:51:02,922 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2020-10-13 17:51:02,922 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_pre_reset [2020-10-13 17:51:02,922 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gigaset_init [2020-10-13 17:51:02,922 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gigaset_exit [2020-10-13 17:51:02,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2020-10-13 17:51:02,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gigaset_ops_1 [2020-10-13 17:51:02,923 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 17:51:02,924 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-13 17:51:02,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2020-10-13 17:51:02,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2020-10-13 17:51:02,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2020-10-13 17:51:02,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2020-10-13 17:51:02,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_7 [2020-10-13 17:51:02,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2020-10-13 17:51:02,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2020-10-13 17:51:02,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_10 [2020-10-13 17:51:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_11 [2020-10-13 17:51:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2020-10-13 17:51:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_13 [2020-10-13 17:51:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_14 [2020-10-13 17:51:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_16 [2020-10-13 17:51:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_17 [2020-10-13 17:51:02,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_19 [2020-10-13 17:51:02,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_20 [2020-10-13 17:51:02,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_21 [2020-10-13 17:51:02,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_24 [2020-10-13 17:51:02,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_25 [2020-10-13 17:51:02,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_26 [2020-10-13 17:51:02,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-13 17:51:02,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-13 17:51:02,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-13 17:51:02,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-13 17:51:02,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-13 17:51:02,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-13 17:51:02,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-13 17:51:02,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-13 17:51:02,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-13 17:51:02,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-13 17:51:02,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-13 17:51:02,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-13 17:51:02,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-13 17:51:02,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-13 17:51:02,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-13 17:51:02,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-13 17:51:02,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 17:51:02,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __tasklet_schedule [2020-10-13 17:51:02,934 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-13 17:51:02,934 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-13 17:51:02,935 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-13 17:51:02,935 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-13 17:51:02,935 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-10-13 17:51:02,935 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2020-10-13 17:51:02,935 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2020-10-13 17:51:02,935 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2020-10-13 17:51:02,935 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_blockdriver [2020-10-13 17:51:02,936 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2020-10-13 17:51:02,936 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_fill_inbuf [2020-10-13 17:51:02,936 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2020-10-13 17:51:02,936 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2020-10-13 17:51:02,936 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcs [2020-10-13 17:51:02,936 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initdriver [2020-10-13 17:51:02,937 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_input [2020-10-13 17:51:02,937 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_send_skb [2020-10-13 17:51:02,937 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_shutdown [2020-10-13 17:51:02,938 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_skb_sent [2020-10-13 17:51:02,938 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_start [2020-10-13 17:51:02,938 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_stop [2020-10-13 17:51:02,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 17:51:02,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-10-13 17:51:02,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-10-13 17:51:02,940 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 17:51:02,941 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2020-10-13 17:51:02,941 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-13 17:51:02,941 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2020-10-13 17:51:02,942 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2020-10-13 17:51:02,943 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-10-13 17:51:02,943 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-13 17:51:02,943 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-13 17:51:02,944 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-13 17:51:02,944 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 17:51:02,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 17:51:02,946 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 17:51:02,949 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 17:51:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 17:51:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 17:51:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 17:51:02,950 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 17:51:02,950 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-13 17:51:02,950 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 17:51:02,951 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-13 17:51:02,951 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-13 17:51:02,951 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 17:51:02,951 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-13 17:51:02,951 INFO L130 BoogieDeclarations]: Found specification of procedure __tasklet_schedule [2020-10-13 17:51:02,951 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2020-10-13 17:51:02,951 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2020-10-13 17:51:02,951 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2020-10-13 17:51:02,952 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-13 17:51:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2020-10-13 17:51:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2020-10-13 17:51:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-13 17:51:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_17 [2020-10-13 17:51:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2020-10-13 17:51:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-13 17:51:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_7 [2020-10-13 17:51:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_16 [2020-10-13 17:51:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_21 [2020-10-13 17:51:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-13 17:51:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_25 [2020-10-13 17:51:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-13 17:51:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_26 [2020-10-13 17:51:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2020-10-13 17:51:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_11 [2020-10-13 17:51:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2020-10-13 17:51:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_10 [2020-10-13 17:51:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_13 [2020-10-13 17:51:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_14 [2020-10-13 17:51:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_19 [2020-10-13 17:51:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_20 [2020-10-13 17:51:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2020-10-13 17:51:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2020-10-13 17:51:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2020-10-13 17:51:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2020-10-13 17:51:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_24 [2020-10-13 17:51:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-13 17:51:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-10-13 17:51:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-13 17:51:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 17:51:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-13 17:51:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-13 17:51:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-13 17:51:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-13 17:51:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-13 17:51:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-13 17:51:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-13 17:51:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-13 17:51:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-13 17:51:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-13 17:51:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 17:51:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 17:51:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 17:51:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 17:51:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 17:51:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 17:51:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 17:51:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 17:51:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 17:51:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 17:51:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 17:51:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 17:51:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 17:51:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 17:51:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 17:51:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 17:51:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 17:51:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 17:51:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 17:51:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2020-10-13 17:51:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gigaset_ops_1 [2020-10-13 17:51:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2020-10-13 17:51:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-13 17:51:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2020-10-13 17:51:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 17:51:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 17:51:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-10-13 17:51:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2020-10-13 17:51:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_send_skb [2020-10-13 17:51:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_input [2020-10-13 17:51:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_skb_sent [2020-10-13 17:51:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initdriver [2020-10-13 17:51:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2020-10-13 17:51:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_blockdriver [2020-10-13 17:51:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcs [2020-10-13 17:51:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2020-10-13 17:51:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_start [2020-10-13 17:51:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_stop [2020-10-13 17:51:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_shutdown [2020-10-13 17:51:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2020-10-13 17:51:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2020-10-13 17:51:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2020-10-13 17:51:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_up [2020-10-13 17:51:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_fill_inbuf [2020-10-13 17:51:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_probe [2020-10-13 17:51:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2020-10-13 17:51:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2020-10-13 17:51:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2020-10-13 17:51:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_pre_reset [2020-10-13 17:51:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 17:51:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure tiocm_to_gigaset [2020-10-13 17:51:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2020-10-13 17:51:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 17:51:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure set_value [2020-10-13 17:51:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2020-10-13 17:51:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2020-10-13 17:51:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2020-10-13 17:51:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2020-10-13 17:51:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure write_modem [2020-10-13 17:51:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure send_cb [2020-10-13 17:51:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_modem_fill [2020-10-13 17:51:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_read_int_callback [2020-10-13 17:51:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_bulk_callback [2020-10-13 17:51:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 17:51:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_cmd [2020-10-13 17:51:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2020-10-13 17:51:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2020-10-13 17:51:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2020-10-13 17:51:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 17:51:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2020-10-13 17:51:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2020-10-13 17:51:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2020-10-13 17:51:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2020-10-13 17:51:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2020-10-13 17:51:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gigaset_init [2020-10-13 17:51:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gigaset_exit [2020-10-13 17:51:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-10-13 17:51:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-10-13 17:51:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 17:51:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 17:51:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 17:51:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 17:51:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-13 17:51:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-13 17:51:02,979 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-13 17:51:02,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-13 17:51:02,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-13 17:51:02,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-13 17:51:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-13 17:51:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 17:51:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 17:51:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 17:51:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 17:51:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 17:51:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 17:51:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 17:51:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 17:51:02,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 17:51:04,147 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 17:51:08,676 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-13 17:51:09,503 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 17:51:09,504 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 17:51:09,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:51:09 BoogieIcfgContainer [2020-10-13 17:51:09,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 17:51:09,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 17:51:09,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 17:51:09,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 17:51:09,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:50:59" (1/3) ... [2020-10-13 17:51:09,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf67933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:51:09, skipping insertion in model container [2020-10-13 17:51:09,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:51:02" (2/3) ... [2020-10-13 17:51:09,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf67933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:51:09, skipping insertion in model container [2020-10-13 17:51:09,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:51:09" (3/3) ... [2020-10-13 17:51:09,522 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2020-10-13 17:51:09,533 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 17:51:09,543 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 17:51:09,555 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 17:51:09,582 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 17:51:09,583 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 17:51:09,583 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 17:51:09,583 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 17:51:09,583 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 17:51:09,583 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 17:51:09,583 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 17:51:09,583 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 17:51:09,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states. [2020-10-13 17:51:09,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 17:51:09,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:51:09,645 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] [2020-10-13 17:51:09,646 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:51:09,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:51:09,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1646051602, now seen corresponding path program 1 times [2020-10-13 17:51:09,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:51:09,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881037989] [2020-10-13 17:51:09,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:51:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:10,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:11,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:15,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:15,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 17:51:15,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:51:15,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5153 [2020-10-13 17:51:15,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:15,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:51:15,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 17:51:15,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:51:15,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 17:51:17,090 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-13 17:51:17,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:51:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:17,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:17,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:17,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:51:17,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:17,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-13 17:51:17,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:17,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:17,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:17,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:17,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:17,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:51:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:17,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:17,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:17,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:17,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:17,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 17:51:17,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:17,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:17,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:17,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:17,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:51:17,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:51:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:17,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:17,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:17,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:17,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:17,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 17:51:17,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:17,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 17:51:17,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:51:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:17,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:17,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:17,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:17,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:17,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 17:51:17,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:17,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:17,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 17:51:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:17,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:17,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:17,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:17,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:17,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 17:51:17,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:17,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:17,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:17,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:17,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:17,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 17:51:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:17,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:17,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:17,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:17,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:17,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 17:51:17,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:17,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:17,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:17,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:17,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:51:17,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 17:51:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:17,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:17,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:17,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:51:17,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:17,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:51:17,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:17,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:17,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:17,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:17,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:17,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 17:51:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:17,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:17,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:17,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:17,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:17,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 17:51:17,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:17,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:51:17,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:51:17,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:51:17,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:17,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 17:51:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:17,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:17,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:17,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 17:51:17,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:17,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 17:51:17,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 17:51:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:17,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:51:17,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:51:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:17,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:17,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:17,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:51:17,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:17,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 17:51:17,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:17,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:17,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:17,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:17,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:51:17,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:51:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:17,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:17,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:17,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:17,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:17,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 17:51:17,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:17,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:17,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:17,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:17,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:51:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-13 17:51:18,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881037989] [2020-10-13 17:51:18,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:51:18,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 17:51:18,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846419339] [2020-10-13 17:51:18,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 17:51:18,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:51:18,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 17:51:18,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-13 17:51:18,082 INFO L87 Difference]: Start difference. First operand 1111 states. Second operand 9 states. [2020-10-13 17:51:22,051 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-13 17:51:23,427 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 570 [2020-10-13 17:51:38,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:51:38,592 INFO L93 Difference]: Finished difference Result 2150 states and 2963 transitions. [2020-10-13 17:51:38,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 17:51:38,594 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-10-13 17:51:38,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:51:38,628 INFO L225 Difference]: With dead ends: 2150 [2020-10-13 17:51:38,628 INFO L226 Difference]: Without dead ends: 1217 [2020-10-13 17:51:38,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-10-13 17:51:38,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2020-10-13 17:51:38,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 906. [2020-10-13 17:51:38,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 906 states. [2020-10-13 17:51:38,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1192 transitions. [2020-10-13 17:51:38,987 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1192 transitions. Word has length 77 [2020-10-13 17:51:38,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:51:38,987 INFO L479 AbstractCegarLoop]: Abstraction has 906 states and 1192 transitions. [2020-10-13 17:51:38,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 17:51:38,988 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1192 transitions. [2020-10-13 17:51:38,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 17:51:38,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:51:38,995 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] [2020-10-13 17:51:38,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 17:51:38,995 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:51:38,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:51:38,996 INFO L82 PathProgramCache]: Analyzing trace with hash 2087743928, now seen corresponding path program 1 times [2020-10-13 17:51:38,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:51:38,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116350968] [2020-10-13 17:51:38,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:51:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:39,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:40,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:44,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:44,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-13 17:51:44,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:51:44,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-13 17:51:44,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:44,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:51:44,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 17:51:44,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:51:44,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:45,675 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-13 17:51:45,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:51:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:45,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:45,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:45,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:51:45,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:45,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-13 17:51:45,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:45,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:45,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:45,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:45,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:45,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:51:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:45,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:45,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:45,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:45,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:51:45,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:45,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:45,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:45,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:51:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:45,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:45,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:45,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:45,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:45,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:51:45,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:45,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:45,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:45,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:45,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:51:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:45,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:45,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:45,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:45,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:45,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:51:45,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:45,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:45,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:45,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:45,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:45,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 17:51:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:46,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:46,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:46,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:46,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:46,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:51:46,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:46,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:46,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:46,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:46,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:46,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 17:51:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:46,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:46,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:46,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:46,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:46,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 17:51:46,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:46,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:46,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 17:51:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:46,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:46,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:46,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:51:46,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:46,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:51:46,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:46,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:46,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:46,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:46,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:51:46,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 17:51:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:46,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:46,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:46,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 17:51:46,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:46,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 17:51:46,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:46,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:51:46,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:51:46,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:51:46,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:46,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 17:51:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:46,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:46,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:46,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 17:51:46,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:46,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 17:51:46,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 17:51:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:46,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:51:46,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:51:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:46,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:46,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:46,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:51:46,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:46,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 17:51:46,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:46,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:46,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:46,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:46,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 17:51:46,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:51:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:51:46,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:51:46,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:51:46,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:51:46,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:51:46,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 17:51:46,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:51:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:51:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:51:46,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:51:46,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:51:46,345 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-13 17:51:46,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116350968] [2020-10-13 17:51:46,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 17:51:46,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 17:51:46,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607948021] [2020-10-13 17:51:46,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 17:51:46,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:51:46,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 17:51:46,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-13 17:51:46,350 INFO L87 Difference]: Start difference. First operand 906 states and 1192 transitions. Second operand 10 states. [2020-10-13 17:51:50,569 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-13 17:52:10,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:52:10,101 INFO L93 Difference]: Finished difference Result 2101 states and 2828 transitions. [2020-10-13 17:52:10,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 17:52:10,101 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-10-13 17:52:10,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:52:10,110 INFO L225 Difference]: With dead ends: 2101 [2020-10-13 17:52:10,111 INFO L226 Difference]: Without dead ends: 1218 [2020-10-13 17:52:10,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-13 17:52:10,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2020-10-13 17:52:10,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 907. [2020-10-13 17:52:10,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 907 states. [2020-10-13 17:52:10,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1193 transitions. [2020-10-13 17:52:10,374 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1193 transitions. Word has length 78 [2020-10-13 17:52:10,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:52:10,375 INFO L479 AbstractCegarLoop]: Abstraction has 907 states and 1193 transitions. [2020-10-13 17:52:10,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 17:52:10,375 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1193 transitions. [2020-10-13 17:52:10,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 17:52:10,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:52:10,379 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:52:10,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 17:52:10,379 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:52:10,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:52:10,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1871288366, now seen corresponding path program 2 times [2020-10-13 17:52:10,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:52:10,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811077027] [2020-10-13 17:52:10,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:52:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:10,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:11,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:15,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:15,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-13 17:52:15,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:52:15,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5079 [2020-10-13 17:52:15,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:15,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 17:52:15,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 17:52:15,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:52:15,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:16,947 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-13 17:52:16,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:52:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:16,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:17,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:17,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:52:17,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:17,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-13 17:52:17,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:17,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:17,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:17,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:17,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:17,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:52:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:17,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:17,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:17,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:52:17,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:17,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:52:17,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:17,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:17,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:17,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:17,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:52:17,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:52:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:17,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:17,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:17,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:52:17,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:17,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:52:17,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:17,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:17,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:52:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:17,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:17,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:17,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:52:17,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:17,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:52:17,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:17,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:17,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 17:52:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:17,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:17,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:17,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:52:17,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:17,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 17:52:17,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:17,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:17,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:17,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:17,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:17,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 17:52:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:17,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:17,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:17,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:52:17,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:17,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:52:17,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:17,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:17,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:17,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:17,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:17,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 17:52:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:17,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:17,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:17,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:52:17,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:17,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:52:17,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:17,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:17,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:17,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:17,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:17,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 17:52:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:17,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:17,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:17,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 17:52:17,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:17,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 17:52:17,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 17:52:17,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:52:17,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 17:52:17,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:17,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 17:52:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:17,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:17,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:17,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 17:52:17,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:17,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 17:52:17,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 17:52:17,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:17,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:17,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:52:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:17,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:17,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:17,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:52:17,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:17,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 17:52:17,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:17,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:17,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:17,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:17,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:17,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:52:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:17,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:17,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:17,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:52:17,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:17,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:52:17,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:17,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:17,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:17,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:17,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:17,635 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-13 17:52:17,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811077027] [2020-10-13 17:52:17,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 17:52:17,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 17:52:17,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480291580] [2020-10-13 17:52:17,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 17:52:17,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:52:17,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 17:52:17,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:52:17,639 INFO L87 Difference]: Start difference. First operand 907 states and 1193 transitions. Second operand 11 states. [2020-10-13 17:52:21,463 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-13 17:52:37,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:52:37,037 INFO L93 Difference]: Finished difference Result 2102 states and 2829 transitions. [2020-10-13 17:52:37,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 17:52:37,038 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-10-13 17:52:37,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:52:37,045 INFO L225 Difference]: With dead ends: 2102 [2020-10-13 17:52:37,046 INFO L226 Difference]: Without dead ends: 1219 [2020-10-13 17:52:37,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-13 17:52:37,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2020-10-13 17:52:37,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 908. [2020-10-13 17:52:37,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2020-10-13 17:52:37,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1194 transitions. [2020-10-13 17:52:37,243 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1194 transitions. Word has length 79 [2020-10-13 17:52:37,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:52:37,244 INFO L479 AbstractCegarLoop]: Abstraction has 908 states and 1194 transitions. [2020-10-13 17:52:37,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 17:52:37,244 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1194 transitions. [2020-10-13 17:52:37,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 17:52:37,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:52:37,247 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:52:37,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 17:52:37,247 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:52:37,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:52:37,247 INFO L82 PathProgramCache]: Analyzing trace with hash -543866760, now seen corresponding path program 3 times [2020-10-13 17:52:37,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:52:37,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334191048] [2020-10-13 17:52:37,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:52:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:37,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:38,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:41,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:41,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 17:52:41,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:52:41,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3700 [2020-10-13 17:52:41,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:41,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 17:52:41,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 17:52:41,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:52:41,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:42,667 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-13 17:52:42,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:52:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:42,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:42,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:42,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:52:42,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:42,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 17:52:42,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:42,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:42,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:42,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:42,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:42,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:52:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:42,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:42,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:42,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:52:42,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:42,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:52:42,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:42,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:42,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:42,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:42,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:42,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:52:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:42,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:42,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:42,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:52:42,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:42,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:52:42,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:42,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:42,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:42,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:42,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:42,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:52:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:42,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:42,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:42,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:52:42,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:42,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:52:42,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:42,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:42,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:42,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:42,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:42,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 17:52:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:42,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:42,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:42,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:52:42,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:42,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:52:42,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:42,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:42,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:42,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 17:52:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:42,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:42,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:42,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:52:42,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:42,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:52:42,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:42,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:42,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:42,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:42,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:42,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 17:52:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:42,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:42,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:42,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:52:42,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:42,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:52:42,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:42,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:42,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:42,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:42,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:42,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 17:52:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:42,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:42,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:42,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 17:52:42,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:42,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 17:52:42,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 17:52:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:52:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 17:52:42,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:43,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 17:52:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:43,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:43,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:43,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 17:52:43,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:43,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 17:52:43,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:43,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:43,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 17:52:43,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:43,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:43,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:52:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:43,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:43,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:43,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:52:43,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:43,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:52:43,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:43,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:43,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:43,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:43,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:43,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:52:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:52:43,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:52:43,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:52:43,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:52:43,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:52:43,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:52:43,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:52:43,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:52:43,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:52:43,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:52:43,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:52:43,178 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-13 17:52:43,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334191048] [2020-10-13 17:52:43,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 17:52:43,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 17:52:43,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315069397] [2020-10-13 17:52:43,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 17:52:43,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:52:43,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 17:52:43,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-13 17:52:43,180 INFO L87 Difference]: Start difference. First operand 908 states and 1194 transitions. Second operand 12 states. [2020-10-13 17:52:46,977 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-13 17:53:03,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:53:03,338 INFO L93 Difference]: Finished difference Result 2103 states and 2830 transitions. [2020-10-13 17:53:03,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 17:53:03,340 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 80 [2020-10-13 17:53:03,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:53:03,351 INFO L225 Difference]: With dead ends: 2103 [2020-10-13 17:53:03,351 INFO L226 Difference]: Without dead ends: 1220 [2020-10-13 17:53:03,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2020-10-13 17:53:03,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2020-10-13 17:53:03,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 909. [2020-10-13 17:53:03,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2020-10-13 17:53:03,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1195 transitions. [2020-10-13 17:53:03,772 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1195 transitions. Word has length 80 [2020-10-13 17:53:03,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:53:03,773 INFO L479 AbstractCegarLoop]: Abstraction has 909 states and 1195 transitions. [2020-10-13 17:53:03,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 17:53:03,773 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1195 transitions. [2020-10-13 17:53:03,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-13 17:53:03,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:53:03,778 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:53:03,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 17:53:03,778 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:53:03,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:53:03,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1895735662, now seen corresponding path program 4 times [2020-10-13 17:53:03,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:53:03,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019190618] [2020-10-13 17:53:03,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:53:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:04,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:06,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:06,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 17:53:06,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:06,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2400 [2020-10-13 17:53:06,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:06,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:53:06,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:53:06,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 17:53:06,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:53:07,899 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-13 17:53:07,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:53:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:07,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:08,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:08,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:53:08,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:08,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-13 17:53:08,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:08,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:53:08,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:08,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:53:08,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:08,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:08,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:08,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:53:08,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:08,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:53:08,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:08,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:08,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:08,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:53:08,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:08,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:53:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:08,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:08,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:08,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:53:08,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:08,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 17:53:08,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:08,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:53:08,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:08,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:53:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:08,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:08,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:08,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:53:08,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:08,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 17:53:08,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:08,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:53:08,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:08,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 17:53:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:08,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:08,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:08,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:53:08,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:08,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 17:53:08,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:08,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:08,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:08,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:53:08,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:08,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 17:53:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:08,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:08,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:08,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:53:08,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:08,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 17:53:08,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:53:08,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:08,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 17:53:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:08,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:08,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:08,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:53:08,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:08,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:53:08,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:08,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:08,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:08,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:53:08,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:08,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 17:53:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:08,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:08,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:08,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 17:53:08,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:08,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 17:53:08,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:08,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:08,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:08,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 17:53:08,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:08,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 17:53:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:08,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:08,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:08,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 17:53:08,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:08,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 17:53:08,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:08,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:08,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:08,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 17:53:08,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:08,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:53:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:08,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:08,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:08,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:53:08,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:08,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 17:53:08,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:08,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:53:08,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:08,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:53:08,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:08,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:53:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:08,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:08,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:08,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:53:08,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:08,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:53:08,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:08,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:53:08,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:08,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:53:08,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:08,719 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-13 17:53:08,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019190618] [2020-10-13 17:53:08,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:53:08,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 17:53:08,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113766582] [2020-10-13 17:53:08,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 17:53:08,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:53:08,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 17:53:08,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 17:53:08,721 INFO L87 Difference]: Start difference. First operand 909 states and 1195 transitions. Second operand 8 states. [2020-10-13 17:53:12,219 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-13 17:53:35,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:53:35,625 INFO L93 Difference]: Finished difference Result 3260 states and 4488 transitions. [2020-10-13 17:53:35,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 17:53:35,626 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-13 17:53:35,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:53:35,642 INFO L225 Difference]: With dead ends: 3260 [2020-10-13 17:53:35,643 INFO L226 Difference]: Without dead ends: 2380 [2020-10-13 17:53:35,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-10-13 17:53:35,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2020-10-13 17:53:36,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 1963. [2020-10-13 17:53:36,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1963 states. [2020-10-13 17:53:36,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 2646 transitions. [2020-10-13 17:53:36,214 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 2646 transitions. Word has length 81 [2020-10-13 17:53:36,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:53:36,215 INFO L479 AbstractCegarLoop]: Abstraction has 1963 states and 2646 transitions. [2020-10-13 17:53:36,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 17:53:36,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 2646 transitions. [2020-10-13 17:53:36,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 17:53:36,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:53:36,218 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:53:36,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 17:53:36,219 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:53:36,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:53:36,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1362367783, now seen corresponding path program 1 times [2020-10-13 17:53:36,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:53:36,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455594617] [2020-10-13 17:53:36,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:53:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:36,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:37,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:37,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 17:53:37,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:37,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1348 [2020-10-13 17:53:37,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:37,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:53:37,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:53:37,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 17:53:37,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:39,129 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-13 17:53:39,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:53:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:39,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:39,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:39,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:53:39,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:39,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-13 17:53:39,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:39,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:39,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:39,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:53:39,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:39,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:53:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:39,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:39,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:39,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:53:39,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:39,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:53:39,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:39,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:39,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:39,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:53:39,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:39,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:53:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:39,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:39,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:39,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:53:39,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:39,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:53:39,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:39,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:39,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:39,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:53:39,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:39,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:53:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:39,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:39,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:39,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:53:39,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:39,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:53:39,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:39,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:39,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:53:39,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:39,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 17:53:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:39,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:39,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:39,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:53:39,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:39,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:53:39,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:39,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:39,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:39,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:53:39,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:39,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 17:53:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:39,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:39,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:39,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:53:39,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:39,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:53:39,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:39,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:39,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:39,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:53:39,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:39,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 17:53:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:39,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:39,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:39,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:53:39,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:39,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:53:39,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:53:39,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:39,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 17:53:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:39,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:39,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:39,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 17:53:39,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:39,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 17:53:39,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:39,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:39,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 17:53:39,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:39,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 17:53:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:39,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:39,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:39,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 17:53:39,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:39,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 17:53:39,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:39,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:53:39,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:39,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 17:53:39,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:39,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:53:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:39,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:39,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:39,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:53:39,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:39,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:53:39,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:39,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:53:39,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:39,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:53:39,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:39,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:53:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:53:39,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:53:39,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:53:39,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:53:39,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:53:39,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:53:39,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:53:39,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:53:39,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:53:39,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:53:39,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:53:39,733 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-13 17:53:39,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455594617] [2020-10-13 17:53:39,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:53:39,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 17:53:39,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786266524] [2020-10-13 17:53:39,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 17:53:39,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:53:39,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 17:53:39,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 17:53:39,736 INFO L87 Difference]: Start difference. First operand 1963 states and 2646 transitions. Second operand 8 states. [2020-10-13 17:53:43,265 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-13 17:54:12,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:54:12,285 INFO L93 Difference]: Finished difference Result 6617 states and 9266 transitions. [2020-10-13 17:54:12,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 17:54:12,287 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2020-10-13 17:54:12,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:54:12,317 INFO L225 Difference]: With dead ends: 6617 [2020-10-13 17:54:12,317 INFO L226 Difference]: Without dead ends: 4683 [2020-10-13 17:54:12,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-10-13 17:54:12,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4683 states. [2020-10-13 17:54:13,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4683 to 4059. [2020-10-13 17:54:13,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4059 states. [2020-10-13 17:54:13,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4059 states to 4059 states and 5567 transitions. [2020-10-13 17:54:13,369 INFO L78 Accepts]: Start accepts. Automaton has 4059 states and 5567 transitions. Word has length 82 [2020-10-13 17:54:13,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:54:13,370 INFO L479 AbstractCegarLoop]: Abstraction has 4059 states and 5567 transitions. [2020-10-13 17:54:13,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 17:54:13,370 INFO L276 IsEmpty]: Start isEmpty. Operand 4059 states and 5567 transitions. [2020-10-13 17:54:13,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-13 17:54:13,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:54:13,373 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:54:13,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 17:54:13,373 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:54:13,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:54:13,373 INFO L82 PathProgramCache]: Analyzing trace with hash 715645393, now seen corresponding path program 1 times [2020-10-13 17:54:13,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:54:13,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278479439] [2020-10-13 17:54:13,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:54:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:13,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:14,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:14,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 17:54:14,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:14,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 833 [2020-10-13 17:54:14,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:14,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:54:14,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:54:14,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-13 17:54:14,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:16,465 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-13 17:54:16,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:54:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:16,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:16,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:16,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:54:16,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:16,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-13 17:54:16,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:16,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:54:16,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:16,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:54:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:16,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:16,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:16,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:54:16,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:16,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:54:16,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:16,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:16,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:16,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:54:16,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:16,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:54:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:16,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:16,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:16,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:54:16,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:16,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:54:16,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:16,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:16,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:16,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:54:16,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:16,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:54:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:16,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:16,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:16,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:54:16,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:16,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:54:16,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:16,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:16,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:16,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:54:16,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:16,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 17:54:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:16,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:16,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:16,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:54:16,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:16,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:54:16,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:16,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:16,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:16,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:54:16,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:16,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 17:54:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:16,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:16,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:16,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:54:16,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:16,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:54:16,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:16,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:16,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:16,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:54:16,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:16,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 17:54:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:16,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:16,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:16,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:54:16,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:16,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:54:16,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:54:16,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:16,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 17:54:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:16,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:16,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:16,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 17:54:16,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:16,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 17:54:16,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:16,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 17:54:16,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:17,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 17:54:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:17,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:17,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:17,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 17:54:17,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:17,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 17:54:17,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:17,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:17,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:17,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 17:54:17,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:17,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:54:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:17,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:17,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:17,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:54:17,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:17,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:54:17,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:17,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:54:17,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:17,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:54:17,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:17,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:54:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:17,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:17,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:17,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:54:17,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:17,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:54:17,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:54:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:54:17,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:17,130 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-13 17:54:17,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278479439] [2020-10-13 17:54:17,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:54:17,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 17:54:17,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367827579] [2020-10-13 17:54:17,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 17:54:17,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:54:17,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 17:54:17,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 17:54:17,132 INFO L87 Difference]: Start difference. First operand 4059 states and 5567 transitions. Second operand 8 states. [2020-10-13 17:54:20,694 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 567