/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 12:02:29,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 12:02:29,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 12:02:29,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 12:02:29,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 12:02:29,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 12:02:29,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 12:02:29,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 12:02:29,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 12:02:29,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 12:02:29,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 12:02:29,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 12:02:29,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 12:02:29,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 12:02:29,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 12:02:29,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 12:02:29,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 12:02:29,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 12:02:29,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 12:02:29,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 12:02:29,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 12:02:29,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 12:02:29,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 12:02:29,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 12:02:29,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 12:02:29,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 12:02:29,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 12:02:29,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 12:02:29,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 12:02:29,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 12:02:29,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 12:02:29,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 12:02:29,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 12:02:29,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 12:02:29,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 12:02:29,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 12:02:29,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 12:02:29,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 12:02:29,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 12:02:29,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 12:02:29,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 12:02:29,511 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 [2020-10-15 12:02:29,560 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 12:02:29,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 12:02:29,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 12:02:29,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 12:02:29,564 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 12:02:29,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 12:02:29,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 12:02:29,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 12:02:29,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 12:02:29,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 12:02:29,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 12:02:29,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 12:02:29,566 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 12:02:29,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 12:02:29,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 12:02:29,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 12:02:29,568 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 12:02:29,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 12:02:29,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 12:02:29,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 12:02:29,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 12:02:29,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 12:02:29,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 12:02:29,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 12:02:29,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 12:02:29,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 12:02:29,570 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 12:02:29,570 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 12:02:29,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 12:02:29,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 12:02:29,906 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 12:02:29,908 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 12:02:29,909 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 12:02:29,909 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-15 12:02:29,969 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8460cab28/2446e9d3a6e64ee6aeecb72495a1fcc0/FLAG656a4c62c [2020-10-15 12:02:30,699 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 12:02:30,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-15 12:02:30,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8460cab28/2446e9d3a6e64ee6aeecb72495a1fcc0/FLAG656a4c62c [2020-10-15 12:02:30,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8460cab28/2446e9d3a6e64ee6aeecb72495a1fcc0 [2020-10-15 12:02:30,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 12:02:30,824 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 12:02:30,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 12:02:30,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 12:02:30,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 12:02:30,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:02:30" (1/1) ... [2020-10-15 12:02:30,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@503fd919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:02:30, skipping insertion in model container [2020-10-15 12:02:30,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:02:30" (1/1) ... [2020-10-15 12:02:30,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 12:02:30,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 12:02:32,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 12:02:32,049 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 12:02:32,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 12:02:32,345 INFO L208 MainTranslator]: Completed translation [2020-10-15 12:02:32,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:02:32 WrapperNode [2020-10-15 12:02:32,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 12:02:32,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 12:02:32,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 12:02:32,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 12:02:32,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:02:32" (1/1) ... [2020-10-15 12:02:32,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:02:32" (1/1) ... [2020-10-15 12:02:32,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:02:32" (1/1) ... [2020-10-15 12:02:32,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:02:32" (1/1) ... [2020-10-15 12:02:32,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:02:32" (1/1) ... [2020-10-15 12:02:32,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:02:32" (1/1) ... [2020-10-15 12:02:32,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:02:32" (1/1) ... [2020-10-15 12:02:32,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 12:02:32,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 12:02:32,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 12:02:32,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 12:02:32,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:02:32" (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 [2020-10-15 12:02:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 12:02:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 12:02:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-15 12:02:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-15 12:02:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2020-10-15 12:02:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2020-10-15 12:02:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2020-10-15 12:02:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-15 12:02:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-15 12:02:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2020-10-15 12:02:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-15 12:02:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-15 12:02:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-15 12:02:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 12:02:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-15 12:02:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-15 12:02:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-10-15 12:02:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-10-15 12:02:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-15 12:02:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-15 12:02:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-15 12:02:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-15 12:02:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-10-15 12:02:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-10-15 12:02:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-10-15 12:02:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-10-15 12:02:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-10-15 12:02:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-10-15 12:02:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2020-10-15 12:02:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_irq [2020-10-15 12:02:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_open [2020-10-15 12:02:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_close [2020-10-15 12:02:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_probe [2020-10-15 12:02:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_disconnect [2020-10-15 12:02:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_init [2020-10-15 12:02:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_exit [2020-10-15 12:02:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-15 12:02:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 12:02:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-15 12:02:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_2 [2020-10-15 12:02:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2020-10-15 12:02:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2020-10-15 12:02:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2020-10-15 12:02:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2020-10-15 12:02:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2020-10-15 12:02:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_8 [2020-10-15 12:02:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2020-10-15 12:02:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_11 [2020-10-15 12:02:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-15 12:02:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-15 12:02:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-15 12:02:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-15 12:02:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-15 12:02:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-15 12:02:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-15 12:02:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-15 12:02:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-15 12:02:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-15 12:02:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-15 12:02:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-15 12:02:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-15 12:02:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-15 12:02:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-15 12:02:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-15 12:02:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-15 12:02:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-15 12:02:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-15 12:02:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-10-15 12:02:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-10-15 12:02:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-10-15 12:02:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-10-15 12:02:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-10-15 12:02:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-15 12:02:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-15 12:02:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-10-15 12:02:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-10-15 12:02:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-15 12:02:32,720 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-15 12:02:32,720 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-15 12:02:32,720 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-15 12:02:32,720 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-15 12:02:32,720 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-15 12:02:32,721 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-15 12:02:32,721 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-15 12:02:32,721 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-15 12:02:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 12:02:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-15 12:02:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-15 12:02:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 12:02:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2020-10-15 12:02:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2020-10-15 12:02:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-15 12:02:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-15 12:02:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-15 12:02:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-15 12:02:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-15 12:02:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-10-15 12:02:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-10-15 12:02:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-15 12:02:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-15 12:02:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_8 [2020-10-15 12:02:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2020-10-15 12:02:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-15 12:02:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2020-10-15 12:02:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 12:02:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 12:02:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-15 12:02:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_2 [2020-10-15 12:02:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-15 12:02:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-15 12:02:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_11 [2020-10-15 12:02:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2020-10-15 12:02:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2020-10-15 12:02:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2020-10-15 12:02:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2020-10-15 12:02:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2020-10-15 12:02:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-15 12:02:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-15 12:02:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-15 12:02:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-15 12:02:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2020-10-15 12:02:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-15 12:02:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-15 12:02:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-15 12:02:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-15 12:02:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-15 12:02:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-15 12:02:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-15 12:02:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-15 12:02:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-15 12:02:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-15 12:02:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-15 12:02:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-15 12:02:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-15 12:02:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 12:02:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-15 12:02:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 12:02:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-15 12:02:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 12:02:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 12:02:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 12:02:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-15 12:02:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-10-15 12:02:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-10-15 12:02:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-15 12:02:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-15 12:02:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-15 12:02:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-15 12:02:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-15 12:02:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-10-15 12:02:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-10-15 12:02:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-10-15 12:02:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-10-15 12:02:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-10-15 12:02:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-10-15 12:02:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-10-15 12:02:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-10-15 12:02:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-10-15 12:02:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-10-15 12:02:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-10-15 12:02:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2020-10-15 12:02:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 12:02:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_irq [2020-10-15 12:02:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_open [2020-10-15 12:02:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 12:02:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_close [2020-10-15 12:02:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_probe [2020-10-15 12:02:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_disconnect [2020-10-15 12:02:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_init [2020-10-15 12:02:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_exit [2020-10-15 12:02:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-15 12:02:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-15 12:02:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 12:02:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-15 12:02:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-15 12:02:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-15 12:02:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-15 12:02:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-15 12:02:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-15 12:02:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-15 12:02:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-15 12:02:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-15 12:02:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-15 12:02:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 12:02:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 12:02:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 12:02:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 12:02:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-15 12:02:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 12:02:33,310 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-15 12:02:34,194 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 12:02:34,194 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 12:02:34,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:02:34 BoogieIcfgContainer [2020-10-15 12:02:34,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 12:02:34,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 12:02:34,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 12:02:34,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 12:02:34,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:02:30" (1/3) ... [2020-10-15 12:02:34,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56550360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:02:34, skipping insertion in model container [2020-10-15 12:02:34,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:02:32" (2/3) ... [2020-10-15 12:02:34,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56550360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:02:34, skipping insertion in model container [2020-10-15 12:02:34,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:02:34" (3/3) ... [2020-10-15 12:02:34,210 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-15 12:02:34,221 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 12:02:34,230 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 12:02:34,245 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 12:02:34,272 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 12:02:34,272 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 12:02:34,273 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 12:02:34,273 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 12:02:34,273 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 12:02:34,273 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 12:02:34,273 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 12:02:34,273 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 12:02:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states. [2020-10-15 12:02:34,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-15 12:02:34,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 12:02:34,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 12:02:34,317 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 12:02:34,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 12:02:34,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1353120335, now seen corresponding path program 1 times [2020-10-15 12:02:34,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 12:02:34,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411043935] [2020-10-15 12:02:34,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 12:02:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:34,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:34,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:35,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:36,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:36,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 12:02:36,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 12:02:36,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1582 [2020-10-15 12:02:36,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:36,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:36,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 12:02:36,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 12:02:36,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 12:02:36,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-15 12:02:36,849 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 12:02:36,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 12:02:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:36,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:37,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:37,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:02:37,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:37,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-15 12:02:37,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:37,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:37,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:37,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:37,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 12:02:37,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:37,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 12:02:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:37,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:37,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:37,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:37,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 12:02:37,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 12:02:37,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-15 12:02:37,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:37,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:37,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:37,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:37,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 12:02:37,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:37,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:02:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:37,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:37,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:37,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:02:37,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:37,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 12:02:37,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:37,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:37,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:37,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:37,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:37,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:37,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 12:02:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:37,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:37,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:37,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:37,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 12:02:37,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 12:02:37,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 12:02:37,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:37,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 12:02:37,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:37,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:37,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 12:02:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:37,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:37,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:37,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 12:02:37,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:37,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 12:02:37,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:37,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 12:02:37,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:37,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 12:02:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:37,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:37,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:37,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 12:02:37,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:37,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 12:02:37,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:37,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:37,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:37,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:37,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 12:02:37,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:37,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 12:02:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:37,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:37,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:37,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 12:02:37,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:37,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-15 12:02:37,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:37,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:37,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:37,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:37,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:37,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:37,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:02:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:37,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:37,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:37,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:02:37,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:37,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 12:02:37,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:37,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:37,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:37,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:37,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:37,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:37,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 12:02:37,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411043935] [2020-10-15 12:02:37,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 12:02:37,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 12:02:37,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95344900] [2020-10-15 12:02:37,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 12:02:37,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 12:02:37,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 12:02:37,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 12:02:37,461 INFO L87 Difference]: Start difference. First operand 508 states. Second operand 7 states. [2020-10-15 12:02:37,778 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 12:02:38,139 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-15 12:02:38,594 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 12:02:46,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 12:02:46,077 INFO L93 Difference]: Finished difference Result 1355 states and 1760 transitions. [2020-10-15 12:02:46,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 12:02:46,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2020-10-15 12:02:46,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 12:02:46,121 INFO L225 Difference]: With dead ends: 1355 [2020-10-15 12:02:46,121 INFO L226 Difference]: Without dead ends: 957 [2020-10-15 12:02:46,130 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-10-15 12:02:46,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2020-10-15 12:02:46,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 729. [2020-10-15 12:02:46,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2020-10-15 12:02:46,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 866 transitions. [2020-10-15 12:02:46,367 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 866 transitions. Word has length 49 [2020-10-15 12:02:46,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 12:02:46,368 INFO L479 AbstractCegarLoop]: Abstraction has 729 states and 866 transitions. [2020-10-15 12:02:46,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 12:02:46,368 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 866 transitions. [2020-10-15 12:02:46,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-15 12:02:46,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 12:02:46,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 12:02:46,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 12:02:46,373 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 12:02:46,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 12:02:46,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1847098503, now seen corresponding path program 1 times [2020-10-15 12:02:46,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 12:02:46,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514072465] [2020-10-15 12:02:46,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 12:02:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:46,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:46,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:46,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:46,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-15 12:02:46,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 12:02:46,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-15 12:02:46,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:46,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:46,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:46,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 12:02:46,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-15 12:02:46,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:02:47,149 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 12:02:47,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 12:02:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:47,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:47,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:47,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:02:47,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:47,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-15 12:02:47,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:47,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:47,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:47,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:47,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 12:02:47,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:02:47,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 12:02:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:47,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:47,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:47,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 12:02:47,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:47,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-15 12:02:47,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:47,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:47,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:47,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:47,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 12:02:47,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:47,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:02:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:47,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:47,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:47,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:02:47,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:47,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 12:02:47,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:47,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:47,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:47,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:47,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:47,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:47,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 12:02:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:47,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:47,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:47,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 12:02:47,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:47,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 12:02:47,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:47,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:47,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:47,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:47,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:47,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:02:47,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 12:02:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:47,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:47,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:47,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 12:02:47,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:47,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 12:02:47,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:47,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:47,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:47,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:47,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 12:02:47,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:02:47,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 12:02:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:47,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:47,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:47,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 12:02:47,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:47,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 12:02:47,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:47,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:47,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:47,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:47,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 12:02:47,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:02:47,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 12:02:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:47,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:47,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:47,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 12:02:47,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:47,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 12:02:47,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:47,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:47,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:47,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:47,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:47,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:02:47,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:02:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:47,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:47,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:47,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:02:47,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:47,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 12:02:47,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:47,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:47,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:47,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:47,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:47,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:47,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 12:02:47,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514072465] [2020-10-15 12:02:47,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 12:02:47,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 12:02:47,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964377461] [2020-10-15 12:02:47,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 12:02:47,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 12:02:47,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 12:02:47,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-15 12:02:47,498 INFO L87 Difference]: Start difference. First operand 729 states and 866 transitions. Second operand 8 states. [2020-10-15 12:02:47,762 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 12:02:48,068 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-15 12:02:48,385 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 12:02:51,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 12:02:51,948 INFO L93 Difference]: Finished difference Result 949 states and 1194 transitions. [2020-10-15 12:02:51,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 12:02:51,949 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-10-15 12:02:51,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 12:02:51,961 INFO L225 Difference]: With dead ends: 949 [2020-10-15 12:02:51,961 INFO L226 Difference]: Without dead ends: 946 [2020-10-15 12:02:51,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2020-10-15 12:02:51,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2020-10-15 12:02:52,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 728. [2020-10-15 12:02:52,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2020-10-15 12:02:52,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 864 transitions. [2020-10-15 12:02:52,124 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 864 transitions. Word has length 50 [2020-10-15 12:02:52,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 12:02:52,125 INFO L479 AbstractCegarLoop]: Abstraction has 728 states and 864 transitions. [2020-10-15 12:02:52,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 12:02:52,125 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 864 transitions. [2020-10-15 12:02:52,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-15 12:02:52,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 12:02:52,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 12:02:52,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 12:02:52,128 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 12:02:52,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 12:02:52,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1425624304, now seen corresponding path program 1 times [2020-10-15 12:02:52,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 12:02:52,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953803164] [2020-10-15 12:02:52,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 12:02:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:52,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:52,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:52,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:52,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-15 12:02:52,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 12:02:52,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-15 12:02:52,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:52,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:52,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:52,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 12:02:52,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-15 12:02:52,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:02:52,896 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 12:02:52,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 12:02:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:52,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:53,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:53,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:02:53,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:53,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-15 12:02:53,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:53,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:53,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:53,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:53,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 12:02:53,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:53,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 12:02:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:53,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:53,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:53,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 12:02:53,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:53,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-15 12:02:53,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:53,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 12:02:53,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:53,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:02:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:53,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:53,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:53,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:02:53,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:53,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 12:02:53,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:53,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:53,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:53,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:53,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:53,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:53,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 12:02:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:53,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:53,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:53,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 12:02:53,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:53,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 12:02:53,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:53,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:53,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:53,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:53,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:53,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:53,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 12:02:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:53,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:53,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:53,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 12:02:53,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:53,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 12:02:53,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:53,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 12:02:53,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:02:53,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 12:02:53,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:53,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:53,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:53,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 12:02:53,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:53,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 12:02:53,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:53,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:53,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:53,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:53,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 12:02:53,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:53,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 12:02:53,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:53,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:53,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:53,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 12:02:53,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:53,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 12:02:53,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:53,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:53,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:53,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:53,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:53,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:53,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:02:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:53,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:53,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:53,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:02:53,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:53,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 12:02:53,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:53,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:53,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:53,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:53,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:53,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:53,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 12:02:53,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953803164] [2020-10-15 12:02:53,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 12:02:53,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 12:02:53,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179791523] [2020-10-15 12:02:53,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 12:02:53,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 12:02:53,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 12:02:53,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 12:02:53,335 INFO L87 Difference]: Start difference. First operand 728 states and 864 transitions. Second operand 7 states. [2020-10-15 12:02:53,649 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 12:02:53,957 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 12:02:54,282 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-15 12:02:57,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 12:02:57,682 INFO L93 Difference]: Finished difference Result 948 states and 1192 transitions. [2020-10-15 12:02:57,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 12:02:57,683 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-10-15 12:02:57,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 12:02:57,690 INFO L225 Difference]: With dead ends: 948 [2020-10-15 12:02:57,691 INFO L226 Difference]: Without dead ends: 945 [2020-10-15 12:02:57,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-15 12:02:57,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2020-10-15 12:02:57,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 727. [2020-10-15 12:02:57,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2020-10-15 12:02:57,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 862 transitions. [2020-10-15 12:02:57,898 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 862 transitions. Word has length 51 [2020-10-15 12:02:57,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 12:02:57,899 INFO L479 AbstractCegarLoop]: Abstraction has 727 states and 862 transitions. [2020-10-15 12:02:57,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 12:02:57,899 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 862 transitions. [2020-10-15 12:02:57,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-15 12:02:57,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 12:02:57,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 12:02:57,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 12:02:57,902 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 12:02:57,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 12:02:57,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1244821156, now seen corresponding path program 1 times [2020-10-15 12:02:57,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 12:02:57,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502305919] [2020-10-15 12:02:57,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 12:02:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:57,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:58,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:58,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:58,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 12:02:58,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 12:02:58,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-15 12:02:58,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:58,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:58,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:58,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 12:02:58,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 12:02:58,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:02:58,593 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 12:02:58,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 12:02:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:58,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:58,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:58,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:02:58,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:58,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-15 12:02:58,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:58,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 12:02:58,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:58,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 12:02:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:58,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:58,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:58,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 12:02:58,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:58,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-15 12:02:58,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:58,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:58,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:58,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:58,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 12:02:58,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:58,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:02:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:58,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:58,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:58,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:02:58,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:58,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 12:02:58,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:58,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:58,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:58,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:58,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:58,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 12:02:58,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 12:02:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:58,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:58,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:58,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 12:02:58,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:58,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 12:02:58,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:58,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:58,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:58,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:58,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:58,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:58,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 12:02:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:58,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:58,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:58,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 12:02:58,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:58,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 12:02:58,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:58,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:58,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:58,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:58,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 12:02:58,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:58,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 12:02:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:58,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:58,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:58,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 12:02:58,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:58,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 12:02:58,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:58,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:02:58,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:58,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 12:02:58,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:58,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 12:02:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:58,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:58,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:58,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 12:02:58,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:58,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 12:02:58,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:58,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:58,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:58,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:58,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:58,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:02:58,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:02:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:02:58,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:02:58,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:02:58,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:02:58,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:02:58,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 12:02:58,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:02:58,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:02:58,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:02:58,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:02:58,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:02:58,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:02:58,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 12:02:58,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502305919] [2020-10-15 12:02:58,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 12:02:58,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 12:02:58,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441872376] [2020-10-15 12:02:58,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 12:02:58,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 12:02:58,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 12:02:58,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 12:02:58,984 INFO L87 Difference]: Start difference. First operand 727 states and 862 transitions. Second operand 7 states. [2020-10-15 12:02:59,245 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 12:02:59,551 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 12:02:59,886 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-15 12:03:03,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 12:03:03,427 INFO L93 Difference]: Finished difference Result 947 states and 1190 transitions. [2020-10-15 12:03:03,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 12:03:03,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-10-15 12:03:03,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 12:03:03,433 INFO L225 Difference]: With dead ends: 947 [2020-10-15 12:03:03,433 INFO L226 Difference]: Without dead ends: 944 [2020-10-15 12:03:03,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-15 12:03:03,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2020-10-15 12:03:03,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 726. [2020-10-15 12:03:03,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2020-10-15 12:03:03,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 860 transitions. [2020-10-15 12:03:03,556 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 860 transitions. Word has length 52 [2020-10-15 12:03:03,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 12:03:03,556 INFO L479 AbstractCegarLoop]: Abstraction has 726 states and 860 transitions. [2020-10-15 12:03:03,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 12:03:03,556 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 860 transitions. [2020-10-15 12:03:03,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-15 12:03:03,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 12:03:03,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 12:03:03,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 12:03:03,559 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 12:03:03,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 12:03:03,559 INFO L82 PathProgramCache]: Analyzing trace with hash 65114003, now seen corresponding path program 1 times [2020-10-15 12:03:03,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 12:03:03,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659672079] [2020-10-15 12:03:03,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 12:03:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:03,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:03,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:03,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:03,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-15 12:03:03,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 12:03:03,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-15 12:03:03,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:03,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:03:03,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 12:03:03,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-15 12:03:03,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:03:04,208 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 12:03:04,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 12:03:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:04,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:04,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:04,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:03:04,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:04,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-15 12:03:04,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:04,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:04,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:03:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 12:03:04,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:03:04,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 12:03:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:04,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:04,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:04,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 12:03:04,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:04,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 12:03:04,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:04,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:04,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:03:04,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:04,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 12:03:04,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:04,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:03:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:04,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:04,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:04,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:03:04,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:04,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 12:03:04,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:04,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:03:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:03:04,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:04,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 12:03:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:04,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:04,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:04,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 12:03:04,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:04,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 12:03:04,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:04,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:04,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:03:04,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:04,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:03:04,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:04,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 12:03:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:04,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:04,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:04,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 12:03:04,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:04,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 12:03:04,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:04,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:04,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:03:04,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:04,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 12:03:04,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:03:04,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 12:03:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:04,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:04,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:04,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 12:03:04,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:04,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 12:03:04,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:04,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:04,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 12:03:04,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:04,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 12:03:04,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:03:04,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 12:03:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:04,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:04,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:04,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 12:03:04,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:04,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 12:03:04,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:04,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:04,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:03:04,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:04,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:03:04,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:03:04,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:03:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:04,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:04,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:04,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:03:04,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:04,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 12:03:04,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:04,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:04,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:03:04,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:04,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:03:04,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 12:03:04,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659672079] [2020-10-15 12:03:04,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 12:03:04,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 12:03:04,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638254842] [2020-10-15 12:03:04,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 12:03:04,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 12:03:04,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 12:03:04,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 12:03:04,494 INFO L87 Difference]: Start difference. First operand 726 states and 860 transitions. Second operand 7 states. [2020-10-15 12:03:04,722 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-15 12:03:05,011 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-15 12:03:05,308 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-15 12:03:08,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 12:03:08,853 INFO L93 Difference]: Finished difference Result 946 states and 1188 transitions. [2020-10-15 12:03:08,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 12:03:08,854 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-10-15 12:03:08,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 12:03:08,859 INFO L225 Difference]: With dead ends: 946 [2020-10-15 12:03:08,859 INFO L226 Difference]: Without dead ends: 924 [2020-10-15 12:03:08,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-15 12:03:08,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-10-15 12:03:08,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 706. [2020-10-15 12:03:08,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-15 12:03:08,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 837 transitions. [2020-10-15 12:03:08,979 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 837 transitions. Word has length 53 [2020-10-15 12:03:08,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 12:03:08,979 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 837 transitions. [2020-10-15 12:03:08,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 12:03:08,980 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 837 transitions. [2020-10-15 12:03:08,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-15 12:03:08,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 12:03:08,985 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 12:03:08,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 12:03:08,986 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 12:03:08,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 12:03:08,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1574508385, now seen corresponding path program 1 times [2020-10-15 12:03:08,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 12:03:08,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104038434] [2020-10-15 12:03:08,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 12:03:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:09,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:09,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:09,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:09,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:09,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:09,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:14,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:14,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-10-15 12:03:14,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 12:03:14,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-15 12:03:14,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:14,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:14,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 12:03:14,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-15 12:03:14,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 12:03:14,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:14,397 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-15 12:03:14,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 12:03:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:14,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:14,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:14,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:03:14,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:14,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-15 12:03:14,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:14,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:14,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:03:14,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:14,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:03:14,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:14,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 12:03:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:14,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:14,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:14,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 12:03:14,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:14,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 12:03:14,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:14,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:14,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:03:14,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:14,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:03:14,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:14,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:03:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:14,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:14,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:14,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:03:14,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:14,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 12:03:14,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:14,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:14,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:03:14,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:14,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:03:14,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:14,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 12:03:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:14,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:14,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:14,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 12:03:14,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:14,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 12:03:14,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:14,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:14,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:03:14,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:14,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:03:14,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:14,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 12:03:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:14,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:14,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:14,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 12:03:14,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:14,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 12:03:14,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:14,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:03:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:03:14,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:14,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 12:03:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:14,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:14,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:14,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:14,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:15,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:19,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:19,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-15 12:03:19,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 12:03:19,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 12:03:19,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:19,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:19,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 12:03:19,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-15 12:03:19,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 12:03:19,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:19,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:03:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:19,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:19,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:19,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:19,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 12:03:19,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 12:03:19,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-15 12:03:19,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:19,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:19,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 12:03:19,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 12:03:19,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 12:03:19,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:19,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:03:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:19,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:19,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:19,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 12:03:19,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:19,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 12:03:19,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:19,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:19,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 12:03:19,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 12:03:19,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 12:03:19,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:19,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:03:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:19,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:19,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:19,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 12:03:19,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:19,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 12:03:19,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:19,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:19,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 12:03:19,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:19,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 12:03:19,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:19,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-15 12:03:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:19,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:19,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:19,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 12:03:19,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:19,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 12:03:19,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:19,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:19,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:03:20,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:20,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:03:20,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:20,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 12:03:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:20,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:20,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:20,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:03:20,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:20,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 12:03:20,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:20,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:20,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:03:20,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:20,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:03:20,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 12:03:20,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-15 12:03:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 12:03:20,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 12:03:20,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 12:03:20,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 12:03:20,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 12:03:20,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 12:03:20,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 12:03:20,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 12:03:20,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 12:03:20,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 12:03:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 12:03:20,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 12:03:20,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 12:03:20,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 12:03:20,034 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:557) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertLocalVarAssignemntPendingContext(AnnotateAndAssertCodeBlocks.java:169) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:120) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) ... 33 more [2020-10-15 12:03:20,041 INFO L168 Benchmark]: Toolchain (without parser) took 49217.32 ms. Allocated memory was 147.8 MB in the beginning and 933.8 MB in the end (delta: 785.9 MB). Free memory was 98.3 MB in the beginning and 236.7 MB in the end (delta: -138.4 MB). Peak memory consumption was 647.5 MB. Max. memory is 7.1 GB. [2020-10-15 12:03:20,042 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-15 12:03:20,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1522.00 ms. Allocated memory was 147.8 MB in the beginning and 207.6 MB in the end (delta: 59.8 MB). Free memory was 97.9 MB in the beginning and 121.2 MB in the end (delta: -23.3 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. [2020-10-15 12:03:20,048 INFO L168 Benchmark]: Boogie Preprocessor took 247.85 ms. Allocated memory is still 207.6 MB. Free memory was 121.2 MB in the beginning and 113.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. [2020-10-15 12:03:20,049 INFO L168 Benchmark]: RCFGBuilder took 1606.41 ms. Allocated memory was 207.6 MB in the beginning and 254.3 MB in the end (delta: 46.7 MB). Free memory was 113.1 MB in the beginning and 184.6 MB in the end (delta: -71.5 MB). Peak memory consumption was 71.1 MB. Max. memory is 7.1 GB. [2020-10-15 12:03:20,055 INFO L168 Benchmark]: TraceAbstraction took 45835.66 ms. Allocated memory was 254.3 MB in the beginning and 933.8 MB in the end (delta: 679.5 MB). Free memory was 184.6 MB in the beginning and 236.7 MB in the end (delta: -52.1 MB). Peak memory consumption was 627.4 MB. Max. memory is 7.1 GB. [2020-10-15 12:03:20,062 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1522.00 ms. Allocated memory was 147.8 MB in the beginning and 207.6 MB in the end (delta: 59.8 MB). Free memory was 97.9 MB in the beginning and 121.2 MB in the end (delta: -23.3 MB). Peak memory consumption was 46.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 247.85 ms. Allocated memory is still 207.6 MB. Free memory was 121.2 MB in the beginning and 113.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1606.41 ms. Allocated memory was 207.6 MB in the beginning and 254.3 MB in the end (delta: 46.7 MB). Free memory was 113.1 MB in the beginning and 184.6 MB in the end (delta: -71.5 MB). Peak memory consumption was 71.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 45835.66 ms. Allocated memory was 254.3 MB in the beginning and 933.8 MB in the end (delta: 679.5 MB). Free memory was 184.6 MB in the beginning and 236.7 MB in the end (delta: -52.1 MB). Peak memory consumption was 627.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...