/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=BIGGEST --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 [2020-10-12 23:08:58,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 23:08:58,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 23:08:58,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 23:08:58,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 23:08:58,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 23:08:58,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 23:08:58,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 23:08:58,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 23:08:58,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 23:08:58,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 23:08:58,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 23:08:58,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 23:08:58,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 23:08:58,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 23:08:58,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 23:08:58,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 23:08:58,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 23:08:58,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 23:08:58,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 23:08:58,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 23:08:58,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 23:08:58,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 23:08:58,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 23:08:58,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 23:08:58,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 23:08:58,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 23:08:58,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 23:08:58,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 23:08:58,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 23:08:58,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 23:08:58,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 23:08:58,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 23:08:58,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 23:08:58,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 23:08:58,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 23:08:58,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 23:08:58,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 23:08:58,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 23:08:58,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 23:08:58,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 23:08:58,869 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 [2020-10-12 23:08:58,911 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 23:08:58,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 23:08:58,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 23:08:58,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 23:08:58,913 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 23:08:58,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 23:08:58,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 23:08:58,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 23:08:58,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 23:08:58,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 23:08:58,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 23:08:58,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 23:08:58,916 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 23:08:58,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 23:08:58,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 23:08:58,917 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 23:08:58,917 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 23:08:58,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 23:08:58,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 23:08:58,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 23:08:58,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 23:08:58,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 23:08:58,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 23:08:58,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 23:08:58,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 23:08:58,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 23:08:58,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-12 23:08:58,919 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 23:08:59,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 23:08:59,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 23:08:59,216 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 23:08:59,218 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 23:08:59,218 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 23:08:59,219 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2020-10-12 23:08:59,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2421c4436/220ca08c0aac40cb8f3180c3839fb868/FLAG72e31f949 [2020-10-12 23:09:00,102 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 23:09:00,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2020-10-12 23:09:00,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2421c4436/220ca08c0aac40cb8f3180c3839fb868/FLAG72e31f949 [2020-10-12 23:09:00,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2421c4436/220ca08c0aac40cb8f3180c3839fb868 [2020-10-12 23:09:00,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 23:09:00,634 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 23:09:00,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 23:09:00,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 23:09:00,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 23:09:00,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:09:00" (1/1) ... [2020-10-12 23:09:00,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c8d45d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:00, skipping insertion in model container [2020-10-12 23:09:00,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:09:00" (1/1) ... [2020-10-12 23:09:00,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 23:09:00,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 23:09:02,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 23:09:02,137 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 23:09:02,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 23:09:02,651 INFO L208 MainTranslator]: Completed translation [2020-10-12 23:09:02,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:02 WrapperNode [2020-10-12 23:09:02,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 23:09:02,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 23:09:02,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 23:09:02,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 23:09:02,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:02" (1/1) ... [2020-10-12 23:09:02,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:02" (1/1) ... [2020-10-12 23:09:02,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:02" (1/1) ... [2020-10-12 23:09:02,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:02" (1/1) ... [2020-10-12 23:09:02,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:02" (1/1) ... [2020-10-12 23:09:02,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:02" (1/1) ... [2020-10-12 23:09:02,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:02" (1/1) ... [2020-10-12 23:09:02,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 23:09:02,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 23:09:02,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 23:09:02,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 23:09:02,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:02" (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 [2020-10-12 23:09:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 23:09:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 23:09:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-12 23:09:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-12 23:09:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-12 23:09:03,073 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-12 23:09:03,073 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2020-10-12 23:09:03,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-12 23:09:03,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-12 23:09:03,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-12 23:09:03,074 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 23:09:03,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-12 23:09:03,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-12 23:09:03,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-12 23:09:03,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-12 23:09:03,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-12 23:09:03,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-12 23:09:03,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-12 23:09:03,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-12 23:09:03,076 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2020-10-12 23:09:03,076 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2020-10-12 23:09:03,076 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2020-10-12 23:09:03,076 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_up [2020-10-12 23:09:03,076 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocm_to_gigaset [2020-10-12 23:09:03,077 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2020-10-12 23:09:03,077 INFO L138 BoogieDeclarations]: Found implementation of procedure set_value [2020-10-12 23:09:03,077 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2020-10-12 23:09:03,077 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2020-10-12 23:09:03,077 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2020-10-12 23:09:03,077 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2020-10-12 23:09:03,078 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_modem_fill [2020-10-12 23:09:03,078 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_read_int_callback [2020-10-12 23:09:03,078 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_bulk_callback [2020-10-12 23:09:03,078 INFO L138 BoogieDeclarations]: Found implementation of procedure send_cb [2020-10-12 23:09:03,078 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_cmd [2020-10-12 23:09:03,078 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2020-10-12 23:09:03,079 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2020-10-12 23:09:03,079 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2020-10-12 23:09:03,079 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2020-10-12 23:09:03,079 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2020-10-12 23:09:03,079 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2020-10-12 23:09:03,080 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2020-10-12 23:09:03,080 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2020-10-12 23:09:03,080 INFO L138 BoogieDeclarations]: Found implementation of procedure write_modem [2020-10-12 23:09:03,080 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_probe [2020-10-12 23:09:03,080 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2020-10-12 23:09:03,081 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2020-10-12 23:09:03,081 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2020-10-12 23:09:03,081 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_pre_reset [2020-10-12 23:09:03,081 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gigaset_init [2020-10-12 23:09:03,081 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gigaset_exit [2020-10-12 23:09:03,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2020-10-12 23:09:03,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gigaset_ops_1 [2020-10-12 23:09:03,082 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 23:09:03,082 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-12 23:09:03,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2020-10-12 23:09:03,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2020-10-12 23:09:03,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2020-10-12 23:09:03,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2020-10-12 23:09:03,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_7 [2020-10-12 23:09:03,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2020-10-12 23:09:03,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2020-10-12 23:09:03,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_10 [2020-10-12 23:09:03,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_11 [2020-10-12 23:09:03,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2020-10-12 23:09:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_13 [2020-10-12 23:09:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_14 [2020-10-12 23:09:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_16 [2020-10-12 23:09:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_17 [2020-10-12 23:09:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_19 [2020-10-12 23:09:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_20 [2020-10-12 23:09:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_21 [2020-10-12 23:09:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_24 [2020-10-12 23:09:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_25 [2020-10-12 23:09:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_26 [2020-10-12 23:09:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-12 23:09:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-12 23:09:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-12 23:09:03,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-12 23:09:03,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-12 23:09:03,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-12 23:09:03,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-12 23:09:03,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-12 23:09:03,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-12 23:09:03,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-12 23:09:03,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-12 23:09:03,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-12 23:09:03,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-12 23:09:03,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-12 23:09:03,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-12 23:09:03,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-12 23:09:03,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-12 23:09:03,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __tasklet_schedule [2020-10-12 23:09:03,088 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-12 23:09:03,088 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-12 23:09:03,088 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-12 23:09:03,088 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-12 23:09:03,088 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-10-12 23:09:03,089 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2020-10-12 23:09:03,089 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2020-10-12 23:09:03,089 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2020-10-12 23:09:03,089 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_blockdriver [2020-10-12 23:09:03,089 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2020-10-12 23:09:03,089 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_fill_inbuf [2020-10-12 23:09:03,089 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2020-10-12 23:09:03,090 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2020-10-12 23:09:03,090 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcs [2020-10-12 23:09:03,090 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initdriver [2020-10-12 23:09:03,090 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_input [2020-10-12 23:09:03,090 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_send_skb [2020-10-12 23:09:03,090 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_shutdown [2020-10-12 23:09:03,090 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_skb_sent [2020-10-12 23:09:03,091 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_start [2020-10-12 23:09:03,091 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_stop [2020-10-12 23:09:03,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-12 23:09:03,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-10-12 23:09:03,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-10-12 23:09:03,091 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-12 23:09:03,091 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2020-10-12 23:09:03,092 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-12 23:09:03,092 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2020-10-12 23:09:03,092 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2020-10-12 23:09:03,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-10-12 23:09:03,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-12 23:09:03,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-12 23:09:03,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-12 23:09:03,093 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-12 23:09:03,093 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-12 23:09:03,093 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-12 23:09:03,093 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-12 23:09:03,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 23:09:03,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-12 23:09:03,094 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-12 23:09:03,094 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-12 23:09:03,094 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-12 23:09:03,094 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-12 23:09:03,094 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-12 23:09:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-12 23:09:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-12 23:09:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-12 23:09:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure __tasklet_schedule [2020-10-12 23:09:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2020-10-12 23:09:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2020-10-12 23:09:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2020-10-12 23:09:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-12 23:09:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2020-10-12 23:09:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2020-10-12 23:09:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-12 23:09:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_17 [2020-10-12 23:09:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2020-10-12 23:09:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-12 23:09:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_7 [2020-10-12 23:09:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_16 [2020-10-12 23:09:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_21 [2020-10-12 23:09:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-12 23:09:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_25 [2020-10-12 23:09:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-12 23:09:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_26 [2020-10-12 23:09:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2020-10-12 23:09:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_11 [2020-10-12 23:09:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2020-10-12 23:09:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_10 [2020-10-12 23:09:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_13 [2020-10-12 23:09:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_14 [2020-10-12 23:09:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_19 [2020-10-12 23:09:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_20 [2020-10-12 23:09:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2020-10-12 23:09:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2020-10-12 23:09:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2020-10-12 23:09:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2020-10-12 23:09:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_24 [2020-10-12 23:09:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-12 23:09:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-10-12 23:09:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-12 23:09:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 23:09:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-12 23:09:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-12 23:09:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-12 23:09:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-12 23:09:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-12 23:09:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-12 23:09:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-12 23:09:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-12 23:09:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-12 23:09:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-12 23:09:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-12 23:09:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-12 23:09:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-12 23:09:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-12 23:09:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 23:09:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 23:09:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 23:09:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-12 23:09:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-12 23:09:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 23:09:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 23:09:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 23:09:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-12 23:09:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-12 23:09:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-12 23:09:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-12 23:09:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-12 23:09:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-12 23:09:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-12 23:09:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2020-10-12 23:09:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gigaset_ops_1 [2020-10-12 23:09:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2020-10-12 23:09:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-12 23:09:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2020-10-12 23:09:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-12 23:09:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 23:09:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-10-12 23:09:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2020-10-12 23:09:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_send_skb [2020-10-12 23:09:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_input [2020-10-12 23:09:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_skb_sent [2020-10-12 23:09:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initdriver [2020-10-12 23:09:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2020-10-12 23:09:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_blockdriver [2020-10-12 23:09:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcs [2020-10-12 23:09:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2020-10-12 23:09:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_start [2020-10-12 23:09:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_stop [2020-10-12 23:09:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_shutdown [2020-10-12 23:09:03,107 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2020-10-12 23:09:03,107 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2020-10-12 23:09:03,107 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2020-10-12 23:09:03,107 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_up [2020-10-12 23:09:03,107 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_fill_inbuf [2020-10-12 23:09:03,107 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_probe [2020-10-12 23:09:03,107 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2020-10-12 23:09:03,107 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2020-10-12 23:09:03,108 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2020-10-12 23:09:03,108 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_pre_reset [2020-10-12 23:09:03,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 23:09:03,108 INFO L130 BoogieDeclarations]: Found specification of procedure tiocm_to_gigaset [2020-10-12 23:09:03,108 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2020-10-12 23:09:03,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 23:09:03,108 INFO L130 BoogieDeclarations]: Found specification of procedure set_value [2020-10-12 23:09:03,108 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2020-10-12 23:09:03,109 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2020-10-12 23:09:03,109 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2020-10-12 23:09:03,109 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2020-10-12 23:09:03,109 INFO L130 BoogieDeclarations]: Found specification of procedure write_modem [2020-10-12 23:09:03,109 INFO L130 BoogieDeclarations]: Found specification of procedure send_cb [2020-10-12 23:09:03,109 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_modem_fill [2020-10-12 23:09:03,109 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_read_int_callback [2020-10-12 23:09:03,109 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_bulk_callback [2020-10-12 23:09:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 23:09:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_cmd [2020-10-12 23:09:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2020-10-12 23:09:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2020-10-12 23:09:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2020-10-12 23:09:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 23:09:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2020-10-12 23:09:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2020-10-12 23:09:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2020-10-12 23:09:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2020-10-12 23:09:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2020-10-12 23:09:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gigaset_init [2020-10-12 23:09:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gigaset_exit [2020-10-12 23:09:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-10-12 23:09:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-10-12 23:09:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-12 23:09:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-12 23:09:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 23:09:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-12 23:09:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-12 23:09:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-12 23:09:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-12 23:09:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-12 23:09:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-12 23:09:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-12 23:09:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-12 23:09:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 23:09:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 23:09:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 23:09:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-12 23:09:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 23:09:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 23:09:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-12 23:09:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-12 23:09:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-12 23:09:04,380 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-12 23:09:09,219 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-12 23:09:09,993 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 23:09:09,993 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 23:09:10,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:09:10 BoogieIcfgContainer [2020-10-12 23:09:10,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 23:09:10,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 23:09:10,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 23:09:10,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 23:09:10,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:09:00" (1/3) ... [2020-10-12 23:09:10,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550f9650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:09:10, skipping insertion in model container [2020-10-12 23:09:10,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:09:02" (2/3) ... [2020-10-12 23:09:10,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550f9650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:09:10, skipping insertion in model container [2020-10-12 23:09:10,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:09:10" (3/3) ... [2020-10-12 23:09:10,015 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2020-10-12 23:09:10,029 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 23:09:10,040 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 23:09:10,059 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 23:09:10,096 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 23:09:10,096 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 23:09:10,096 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 23:09:10,096 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 23:09:10,097 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 23:09:10,097 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 23:09:10,097 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 23:09:10,097 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 23:09:10,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states. [2020-10-12 23:09:10,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 23:09:10,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:09:10,183 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] [2020-10-12 23:09:10,183 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:09:10,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:09:10,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1646051602, now seen corresponding path program 1 times [2020-10-12 23:09:10,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:09:10,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972532062] [2020-10-12 23:09:10,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:09:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:10,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:12,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:15,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:15,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 23:09:15,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:09:15,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 23:09:15,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:15,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:09:15,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:09:15,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 23:09:15,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 23:09:17,604 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-12 23:09:17,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:09:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:17,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:18,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:18,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:09:18,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:09:18,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 540 [2020-10-12 23:09:18,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:18,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:09:18,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:09:18,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:09:18,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:09:18,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:09:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:18,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:18,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:18,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:09:18,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:09:18,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 23:09:18,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:18,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:09:18,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:09:18,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:09:18,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:09:18,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:09:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:18,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:18,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:18,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:09:18,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:09:18,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 23:09:18,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:18,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:09:18,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:09:18,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:09:18,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:09:18,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 23:09:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:18,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:18,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:18,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:09:18,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:09:18,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 23:09:18,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:18,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:09:18,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:09:18,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:09:18,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:09:18,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 23:09:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:18,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:18,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:18,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:09:18,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:09:18,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 23:09:18,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:18,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:09:18,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:09:18,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:09:18,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:09:18,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 23:09:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:18,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:18,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:18,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:09:18,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:09:18,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 23:09:18,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:18,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:09:18,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:09:18,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:09:18,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 23:09:18,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 23:09:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:18,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:18,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:18,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:09:18,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:09:18,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 23:09:18,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:09:18,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:09:18,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:09:18,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:09:18,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 23:09:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:18,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:18,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:18,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:18,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:09:18,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:09:18,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 23:09:18,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:18,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 23:09:18,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 23:09:18,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:09:18,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:09:18,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 23:09:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:18,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:18,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:18,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 23:09:18,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:09:18,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-12 23:09:18,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:18,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:09:18,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:09:18,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 23:09:18,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:09:19,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:09:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:19,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:19,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:19,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:09:19,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:09:19,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 23:09:19,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:19,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:09:19,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:09:19,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:09:19,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 23:09:19,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:09:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:19,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:19,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:19,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:09:19,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:09:19,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 23:09:19,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:19,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:09:19,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:09:19,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:09:19,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:09:19,140 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-12 23:09:19,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972532062] [2020-10-12 23:09:19,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:09:19,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 23:09:19,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747782551] [2020-10-12 23:09:19,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 23:09:19,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:09:19,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 23:09:19,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 23:09:19,173 INFO L87 Difference]: Start difference. First operand 1111 states. Second operand 10 states. [2020-10-12 23:09:22,834 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-12 23:09:24,694 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 570 [2020-10-12 23:09:26,243 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 572 [2020-10-12 23:09:52,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:09:52,466 INFO L93 Difference]: Finished difference Result 3326 states and 4699 transitions. [2020-10-12 23:09:52,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 23:09:52,477 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-10-12 23:09:52,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:09:52,524 INFO L225 Difference]: With dead ends: 3326 [2020-10-12 23:09:52,524 INFO L226 Difference]: Without dead ends: 2377 [2020-10-12 23:09:52,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-10-12 23:09:52,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2377 states. [2020-10-12 23:09:53,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2377 to 1960. [2020-10-12 23:09:53,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1960 states. [2020-10-12 23:09:53,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2643 transitions. [2020-10-12 23:09:53,144 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2643 transitions. Word has length 77 [2020-10-12 23:09:53,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:09:53,145 INFO L479 AbstractCegarLoop]: Abstraction has 1960 states and 2643 transitions. [2020-10-12 23:09:53,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 23:09:53,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2643 transitions. [2020-10-12 23:09:53,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 23:09:53,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:09:53,153 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 23:09:53,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 23:09:53,153 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:09:53,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:09:53,154 INFO L82 PathProgramCache]: Analyzing trace with hash 294921167, now seen corresponding path program 1 times [2020-10-12 23:09:53,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:09:53,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [666661634] [2020-10-12 23:09:53,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:09:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:53,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:54,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:58,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:58,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 23:09:58,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:09:58,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-12 23:09:58,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:58,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:09:58,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-12 23:09:58,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 23:09:58,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:09:59,786 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-12 23:09:59,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:09:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:09:59,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:09:59,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:09:59,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:09:59,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:09:59,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-12 23:09:59,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:09:59,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:09:59,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:09:59,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:09:59,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:00,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:10:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:00,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:00,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:00,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:00,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:00,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:10:00,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:00,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:00,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:00,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:00,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:00,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:10:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:00,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:00,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:00,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:00,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:00,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:10:00,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:00,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:00,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:00,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:00,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:00,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 23:10:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:00,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:00,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:00,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:00,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:00,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:10:00,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:00,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:00,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:00,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:00,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 23:10:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:00,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:00,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:00,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:00,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:00,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:10:00,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:00,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:00,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 23:10:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:00,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:00,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:00,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:00,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:00,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:10:00,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:00,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:00,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:00,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 23:10:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:00,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:00,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:00,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:10:00,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:00,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:10:00,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:00,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:00,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:00,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:00,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:00,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 23:10:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:00,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:00,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:00,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 23:10:00,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:00,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 23:10:00,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:00,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:10:00,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 23:10:00,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 23:10:00,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:00,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 23:10:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:00,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:00,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:00,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 23:10:00,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:00,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 23:10:00,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:00,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:00,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 23:10:00,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:00,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:00,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:10:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:00,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:00,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:00,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:10:00,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:00,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 23:10:00,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:00,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:00,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:00,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:00,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:00,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:10:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:00,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:00,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:00,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:00,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:00,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:10:00,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:00,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:00,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:00,502 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-12 23:10:00,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [666661634] [2020-10-12 23:10:00,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 23:10:00,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 23:10:00,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272509869] [2020-10-12 23:10:00,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 23:10:00,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:10:00,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 23:10:00,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-12 23:10:00,506 INFO L87 Difference]: Start difference. First operand 1960 states and 2643 transitions. Second operand 10 states. [2020-10-12 23:10:04,604 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-12 23:10:19,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:10:19,989 INFO L93 Difference]: Finished difference Result 4305 states and 5878 transitions. [2020-10-12 23:10:19,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 23:10:19,989 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2020-10-12 23:10:19,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:10:20,016 INFO L225 Difference]: With dead ends: 4305 [2020-10-12 23:10:20,016 INFO L226 Difference]: Without dead ends: 2368 [2020-10-12 23:10:20,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-12 23:10:20,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2020-10-12 23:10:20,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 1961. [2020-10-12 23:10:20,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1961 states. [2020-10-12 23:10:20,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2644 transitions. [2020-10-12 23:10:20,426 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2644 transitions. Word has length 79 [2020-10-12 23:10:20,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:10:20,427 INFO L479 AbstractCegarLoop]: Abstraction has 1961 states and 2644 transitions. [2020-10-12 23:10:20,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 23:10:20,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2644 transitions. [2020-10-12 23:10:20,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-12 23:10:20,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:10:20,431 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, 1] [2020-10-12 23:10:20,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 23:10:20,431 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:10:20,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:10:20,431 INFO L82 PathProgramCache]: Analyzing trace with hash -2120233959, now seen corresponding path program 2 times [2020-10-12 23:10:20,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:10:20,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120288976] [2020-10-12 23:10:20,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:10:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:20,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:21,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:25,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:25,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 23:10:25,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:10:25,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5164 [2020-10-12 23:10:25,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:25,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 23:10:25,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-12 23:10:25,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:10:25,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:27,372 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-12 23:10:27,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:10:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:27,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:27,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:27,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:10:27,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:27,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-12 23:10:27,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:27,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:27,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:27,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:27,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:27,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:10:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:27,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:27,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:27,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:27,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:27,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:10:27,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:27,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:27,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:27,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:27,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:27,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:10:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:27,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:27,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:27,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:27,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:27,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:10:27,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:27,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:27,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 23:10:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:27,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:27,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:27,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:27,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:27,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:10:27,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:27,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:27,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:27,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:27,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:27,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 23:10:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:27,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:27,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:27,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:27,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:27,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:10:27,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:27,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:27,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 23:10:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:27,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:27,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:27,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:27,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:27,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:10:27,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:27,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:27,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:10:27,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 23:10:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:27,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:27,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:27,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:10:27,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:27,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:10:27,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:27,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:27,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:27,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:27,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:10:27,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 23:10:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:27,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:27,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:27,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 23:10:27,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:27,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 23:10:27,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:27,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 23:10:27,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 23:10:27,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 23:10:27,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:27,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 23:10:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:27,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:27,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:27,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 23:10:27,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:27,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 23:10:27,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:27,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:27,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 23:10:27,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:27,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:10:27,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:10:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:27,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:27,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:27,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:10:27,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:27,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 23:10:27,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:27,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:10:27,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:10:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:27,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:27,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:27,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:27,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:27,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:10:27,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:27,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:27,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:27,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:27,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:28,020 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-12 23:10:28,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2120288976] [2020-10-12 23:10:28,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 23:10:28,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 23:10:28,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294760101] [2020-10-12 23:10:28,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 23:10:28,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:10:28,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 23:10:28,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-12 23:10:28,023 INFO L87 Difference]: Start difference. First operand 1961 states and 2644 transitions. Second operand 11 states. [2020-10-12 23:10:31,986 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-12 23:10:47,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:10:47,442 INFO L93 Difference]: Finished difference Result 4306 states and 5879 transitions. [2020-10-12 23:10:47,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 23:10:47,443 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2020-10-12 23:10:47,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:10:47,459 INFO L225 Difference]: With dead ends: 4306 [2020-10-12 23:10:47,459 INFO L226 Difference]: Without dead ends: 2369 [2020-10-12 23:10:47,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-12 23:10:47,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2369 states. [2020-10-12 23:10:47,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2369 to 1962. [2020-10-12 23:10:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-10-12 23:10:47,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2645 transitions. [2020-10-12 23:10:47,920 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2645 transitions. Word has length 80 [2020-10-12 23:10:47,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:10:47,922 INFO L479 AbstractCegarLoop]: Abstraction has 1962 states and 2645 transitions. [2020-10-12 23:10:47,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 23:10:47,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2645 transitions. [2020-10-12 23:10:47,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-12 23:10:47,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:10:47,931 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, 1] [2020-10-12 23:10:47,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 23:10:47,932 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:10:47,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:10:47,932 INFO L82 PathProgramCache]: Analyzing trace with hash 319368463, now seen corresponding path program 3 times [2020-10-12 23:10:47,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:10:47,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158729228] [2020-10-12 23:10:47,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:10:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:48,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:49,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:52,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:52,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 23:10:52,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:10:52,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4722 [2020-10-12 23:10:52,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:52,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 23:10:52,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-12 23:10:52,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 23:10:52,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:54,956 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-12 23:10:54,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:10:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:54,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:55,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:55,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:10:55,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:55,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-12 23:10:55,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:55,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:55,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:55,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:55,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:55,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:10:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:55,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:55,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:55,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:55,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:55,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:10:55,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:55,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:55,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:55,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:55,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:55,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:10:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:55,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:55,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:55,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:55,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:55,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:10:55,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:55,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:55,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:55,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:55,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:55,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 23:10:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:55,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:55,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:55,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:55,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:55,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:10:55,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:55,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:55,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:55,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:55,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:55,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 23:10:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:55,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:55,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:55,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:55,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:55,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:10:55,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:55,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:55,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:55,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:55,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:55,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 23:10:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:55,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:55,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:55,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:55,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:55,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:10:55,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:55,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:55,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 23:10:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:55,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:55,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:55,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:10:55,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:55,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:10:55,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:55,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:55,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 23:10:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:55,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:55,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:55,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 23:10:55,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:55,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 23:10:55,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:55,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 23:10:55,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 23:10:55,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 23:10:55,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:55,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 23:10:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:55,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:55,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:55,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 23:10:55,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:55,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 23:10:55,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:55,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:55,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 23:10:55,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:55,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:10:55,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:10:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:55,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:55,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:55,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:10:55,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:55,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 23:10:55,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:55,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:55,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:55,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:55,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:55,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:10:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:10:55,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:10:55,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:10:55,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:10:55,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:10:55,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:10:55,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:10:55,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:10:55,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:10:55,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:10:55,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:10:55,642 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-12 23:10:55,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158729228] [2020-10-12 23:10:55,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 23:10:55,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 23:10:55,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011447031] [2020-10-12 23:10:55,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 23:10:55,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:10:55,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 23:10:55,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-12 23:10:55,646 INFO L87 Difference]: Start difference. First operand 1962 states and 2645 transitions. Second operand 12 states. [2020-10-12 23:10:59,949 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-12 23:11:24,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:11:24,422 INFO L93 Difference]: Finished difference Result 4307 states and 5880 transitions. [2020-10-12 23:11:24,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 23:11:24,423 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2020-10-12 23:11:24,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:11:24,438 INFO L225 Difference]: With dead ends: 4307 [2020-10-12 23:11:24,438 INFO L226 Difference]: Without dead ends: 2370 [2020-10-12 23:11:24,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2020-10-12 23:11:24,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2020-10-12 23:11:24,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 1963. [2020-10-12 23:11:24,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1963 states. [2020-10-12 23:11:24,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 2646 transitions. [2020-10-12 23:11:24,922 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 2646 transitions. Word has length 81 [2020-10-12 23:11:24,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:11:24,923 INFO L479 AbstractCegarLoop]: Abstraction has 1963 states and 2646 transitions. [2020-10-12 23:11:24,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 23:11:24,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 2646 transitions. [2020-10-12 23:11:24,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 23:11:24,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:11:24,926 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] [2020-10-12 23:11:24,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 23:11:24,926 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:11:24,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:11:24,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1362367783, now seen corresponding path program 4 times [2020-10-12 23:11:24,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:11:24,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120813941] [2020-10-12 23:11:24,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:11:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:11:25,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:11:26,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:11:26,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 23:11:26,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:11:26,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1072 [2020-10-12 23:11:26,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:11:26,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:11:26,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:11:26,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 23:11:26,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:11:27,739 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-12 23:11:27,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:11:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:11:27,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:11:28,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:11:28,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:11:28,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:11:28,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-12 23:11:28,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:11:28,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:11:28,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:11:28,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:11:28,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:11:28,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:11:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:11:28,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:11:28,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:11:28,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:11:28,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:11:28,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:11:28,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:11:28,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:11:28,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:11:28,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:11:28,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:11:28,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:11:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:11:28,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:11:28,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:11:28,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:11:28,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:11:28,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:11:28,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:11:28,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:11:28,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:11:28,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:11:28,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:11:28,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 23:11:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:11:28,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:11:28,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:11:28,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:11:28,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:11:28,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:11:28,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:11:28,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:11:28,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:11:28,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:11:28,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:11:28,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 23:11:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:11:28,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:11:28,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:11:28,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:11:28,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:11:28,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:11:28,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:11:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:11:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:11:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:11:28,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:11:28,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 23:11:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:11:28,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:11:28,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:11:28,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:11:28,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:11:28,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:11:28,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:11:28,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:11:28,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:11:28,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:11:28,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:11:28,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 23:11:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:11:28,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:11:28,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:11:28,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:11:28,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:11:28,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:11:28,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:11:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:11:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:11:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:11:28,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:11:28,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 23:11:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:11:28,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:11:28,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:11:28,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 23:11:28,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:11:28,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 23:11:28,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:11:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:11:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:11:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 23:11:28,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:11:28,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 23:11:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:11:28,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:11:28,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:11:28,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 23:11:28,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:11:28,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 23:11:28,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:11:28,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:11:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:11:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 23:11:28,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:11:28,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:11:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:11:28,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:11:28,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:11:28,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:11:28,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:11:28,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 23:11:28,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:11:28,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:11:28,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:11:28,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:11:28,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:11:28,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:11:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:11:28,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:11:28,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:11:28,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:11:28,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:11:28,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:11:28,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:11:28,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:11:28,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:11:28,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:11:28,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:11:28,394 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-12 23:11:28,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120813941] [2020-10-12 23:11:28,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:11:28,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 23:11:28,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245072349] [2020-10-12 23:11:28,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 23:11:28,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:11:28,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 23:11:28,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 23:11:28,396 INFO L87 Difference]: Start difference. First operand 1963 states and 2646 transitions. Second operand 8 states. [2020-10-12 23:11:31,959 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 568 [2020-10-12 23:12:00,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:12:00,191 INFO L93 Difference]: Finished difference Result 6617 states and 9266 transitions. [2020-10-12 23:12:00,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 23:12:00,193 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2020-10-12 23:12:00,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:12:00,221 INFO L225 Difference]: With dead ends: 6617 [2020-10-12 23:12:00,222 INFO L226 Difference]: Without dead ends: 4683 [2020-10-12 23:12:00,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-10-12 23:12:00,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4683 states. [2020-10-12 23:12:00,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4683 to 4059. [2020-10-12 23:12:00,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4059 states. [2020-10-12 23:12:00,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4059 states to 4059 states and 5567 transitions. [2020-10-12 23:12:00,900 INFO L78 Accepts]: Start accepts. Automaton has 4059 states and 5567 transitions. Word has length 82 [2020-10-12 23:12:00,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:12:00,900 INFO L479 AbstractCegarLoop]: Abstraction has 4059 states and 5567 transitions. [2020-10-12 23:12:00,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 23:12:00,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4059 states and 5567 transitions. [2020-10-12 23:12:00,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-12 23:12:00,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:12:00,904 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] [2020-10-12 23:12:00,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 23:12:00,904 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:12:00,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:12:00,904 INFO L82 PathProgramCache]: Analyzing trace with hash 715645393, now seen corresponding path program 1 times [2020-10-12 23:12:00,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:12:00,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788201401] [2020-10-12 23:12:00,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:12:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:01,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:02,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:02,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 23:12:02,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:02,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1326 [2020-10-12 23:12:02,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:12:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:12:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 23:12:02,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:03,832 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-12 23:12:03,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:12:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:03,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:04,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:04,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:12:04,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:04,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-12 23:12:04,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:04,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:04,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:04,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:12:04,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:04,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:12:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:04,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:04,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:04,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:04,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:04,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:12:04,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:04,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:04,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:04,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:12:04,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:04,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:12:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:04,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:04,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:04,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:04,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:04,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:12:04,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:04,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:04,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:04,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:12:04,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:04,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 23:12:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:04,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:04,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:04,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:04,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:04,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:12:04,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:04,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:04,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:04,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:12:04,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:04,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 23:12:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:04,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:04,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:04,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:04,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:04,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:12:04,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:04,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:04,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:04,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:12:04,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:04,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 23:12:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:04,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:04,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:04,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:04,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:04,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:12:04,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:12:04,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:04,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 23:12:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:04,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:04,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:04,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:12:04,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:04,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:12:04,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:12:04,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:04,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 23:12:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:04,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:04,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:04,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 23:12:04,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:04,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 23:12:04,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:04,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:04,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:04,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 23:12:04,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:04,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 23:12:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:04,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:04,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:04,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 23:12:04,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:04,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 23:12:04,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:04,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:04,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:04,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 23:12:04,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:04,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:12:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:04,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:04,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:04,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:12:04,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:04,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:12:04,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:04,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:12:04,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:04,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:12:04,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:04,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:12:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:04,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:04,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:04,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:04,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:04,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:12:04,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:04,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:12:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:04,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:12:04,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:04,528 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-12 23:12:04,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788201401] [2020-10-12 23:12:04,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:12:04,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 23:12:04,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266611693] [2020-10-12 23:12:04,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 23:12:04,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:12:04,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 23:12:04,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 23:12:04,530 INFO L87 Difference]: Start difference. First operand 4059 states and 5567 transitions. Second operand 8 states. [2020-10-12 23:12:08,111 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 567 [2020-10-12 23:12:37,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:12:37,785 INFO L93 Difference]: Finished difference Result 4681 states and 6512 transitions. [2020-10-12 23:12:37,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 23:12:37,786 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-12 23:12:37,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:12:37,810 INFO L225 Difference]: With dead ends: 4681 [2020-10-12 23:12:37,810 INFO L226 Difference]: Without dead ends: 4678 [2020-10-12 23:12:37,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-10-12 23:12:37,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4678 states. [2020-10-12 23:12:38,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4678 to 4060. [2020-10-12 23:12:38,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4060 states. [2020-10-12 23:12:38,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4060 states to 4060 states and 5568 transitions. [2020-10-12 23:12:38,503 INFO L78 Accepts]: Start accepts. Automaton has 4060 states and 5568 transitions. Word has length 83 [2020-10-12 23:12:38,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:12:38,503 INFO L479 AbstractCegarLoop]: Abstraction has 4060 states and 5568 transitions. [2020-10-12 23:12:38,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 23:12:38,503 INFO L276 IsEmpty]: Start isEmpty. Operand 4060 states and 5568 transitions. [2020-10-12 23:12:38,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-12 23:12:38,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:12:38,505 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, 1] [2020-10-12 23:12:38,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 23:12:38,506 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:12:38,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:12:38,506 INFO L82 PathProgramCache]: Analyzing trace with hash 709549276, now seen corresponding path program 1 times [2020-10-12 23:12:38,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:12:38,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436629219] [2020-10-12 23:12:38,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:12:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:38,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:39,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:39,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 23:12:39,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:39,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-10-12 23:12:39,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:39,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:39,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:12:39,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 23:12:39,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:40,642 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 565 [2020-10-12 23:12:40,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:12:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:40,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:40,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:40,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:12:40,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:40,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-12 23:12:40,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:40,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:40,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:40,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:12:40,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:40,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:12:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:40,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:40,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:40,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:40,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:40,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:12:40,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:40,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:40,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:40,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:12:40,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:40,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:12:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:40,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:40,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:40,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:40,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:40,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:12:40,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:40,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:40,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:40,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:12:40,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:40,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 23:12:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:40,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:40,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:40,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:40,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:40,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:12:40,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:40,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:40,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:40,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:12:40,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:40,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-12 23:12:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:40,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:40,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:40,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:40,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:40,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:12:40,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:40,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:40,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:40,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:12:40,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:41,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 23:12:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:41,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:41,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:41,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:41,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:41,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:12:41,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:12:41,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:41,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 23:12:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:41,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:41,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:41,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:12:41,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:41,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:12:41,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:41,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:41,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:41,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:12:41,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:41,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 23:12:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:41,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:41,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:41,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 23:12:41,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:41,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 23:12:41,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:41,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:41,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:41,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 23:12:41,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:41,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 23:12:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:41,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:41,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:41,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 23:12:41,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:41,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 23:12:41,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:41,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:12:41,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:41,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 23:12:41,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:41,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:12:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:41,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:41,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:41,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:12:41,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:41,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:12:41,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:12:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:12:41,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:41,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:12:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:12:41,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:12:41,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:12:41,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:12:41,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:12:41,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 23:12:41,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:12:41,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:12:41,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:12:41,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:12:41,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:12:41,207 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-12 23:12:41,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436629219] [2020-10-12 23:12:41,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:12:41,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 23:12:41,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425579757] [2020-10-12 23:12:41,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 23:12:41,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:12:41,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 23:12:41,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-12 23:12:41,208 INFO L87 Difference]: Start difference. First operand 4060 states and 5568 transitions. Second operand 8 states.