/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 17:26:16,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 17:26:16,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 17:26:16,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 17:26:16,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 17:26:16,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 17:26:16,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 17:26:16,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 17:26:17,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 17:26:17,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 17:26:17,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 17:26:17,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 17:26:17,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 17:26:17,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 17:26:17,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 17:26:17,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 17:26:17,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 17:26:17,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 17:26:17,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 17:26:17,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 17:26:17,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 17:26:17,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 17:26:17,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 17:26:17,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 17:26:17,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 17:26:17,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 17:26:17,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 17:26:17,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 17:26:17,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 17:26:17,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 17:26:17,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 17:26:17,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 17:26:17,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 17:26:17,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 17:26:17,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 17:26:17,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 17:26:17,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 17:26:17,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 17:26:17,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 17:26:17,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 17:26:17,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 17:26:17,029 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 [2020-10-14 17:26:17,052 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 17:26:17,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 17:26:17,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 17:26:17,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 17:26:17,054 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 17:26:17,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 17:26:17,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 17:26:17,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 17:26:17,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 17:26:17,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 17:26:17,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 17:26:17,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 17:26:17,056 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 17:26:17,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 17:26:17,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 17:26:17,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 17:26:17,057 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 17:26:17,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 17:26:17,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 17:26:17,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 17:26:17,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 17:26:17,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 17:26:17,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 17:26:17,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 17:26:17,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 17:26:17,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 17:26:17,059 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 17:26:17,059 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 17:26:17,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 17:26:17,390 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 17:26:17,393 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 17:26:17,395 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 17:26:17,395 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 17:26:17,396 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-14 17:26:17,466 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/73b29083e/d239facfbf5e416285df3e359b9f180a/FLAG14facea0a [2020-10-14 17:26:18,249 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 17:26:18,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-14 17:26:18,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/73b29083e/d239facfbf5e416285df3e359b9f180a/FLAG14facea0a [2020-10-14 17:26:18,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/73b29083e/d239facfbf5e416285df3e359b9f180a [2020-10-14 17:26:18,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 17:26:18,412 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 17:26:18,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 17:26:18,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 17:26:18,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 17:26:18,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:26:18" (1/1) ... [2020-10-14 17:26:18,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e3fcd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:18, skipping insertion in model container [2020-10-14 17:26:18,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:26:18" (1/1) ... [2020-10-14 17:26:18,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 17:26:18,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 17:26:19,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 17:26:19,821 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 17:26:20,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 17:26:20,147 INFO L208 MainTranslator]: Completed translation [2020-10-14 17:26:20,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:20 WrapperNode [2020-10-14 17:26:20,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 17:26:20,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 17:26:20,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 17:26:20,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 17:26:20,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:20" (1/1) ... [2020-10-14 17:26:20,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:20" (1/1) ... [2020-10-14 17:26:20,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:20" (1/1) ... [2020-10-14 17:26:20,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:20" (1/1) ... [2020-10-14 17:26:20,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:20" (1/1) ... [2020-10-14 17:26:20,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:20" (1/1) ... [2020-10-14 17:26:20,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:20" (1/1) ... [2020-10-14 17:26:20,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 17:26:20,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 17:26:20,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 17:26:20,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 17:26:20,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:20" (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 [2020-10-14 17:26:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 17:26:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 17:26:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 17:26:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-14 17:26:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2020-10-14 17:26:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2020-10-14 17:26:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2020-10-14 17:26:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-14 17:26:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-14 17:26:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2020-10-14 17:26:20,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-14 17:26:20,422 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-14 17:26:20,422 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-14 17:26:20,422 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 17:26:20,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 17:26:20,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-14 17:26:20,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-10-14 17:26:20,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-10-14 17:26:20,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-14 17:26:20,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-14 17:26:20,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-14 17:26:20,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 17:26:20,425 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-10-14 17:26:20,425 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-10-14 17:26:20,425 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-10-14 17:26:20,426 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-10-14 17:26:20,426 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-10-14 17:26:20,426 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-10-14 17:26:20,426 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2020-10-14 17:26:20,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_irq [2020-10-14 17:26:20,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_open [2020-10-14 17:26:20,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_close [2020-10-14 17:26:20,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_probe [2020-10-14 17:26:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_disconnect [2020-10-14 17:26:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_init [2020-10-14 17:26:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_exit [2020-10-14 17:26:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-14 17:26:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 17:26:20,429 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-14 17:26:20,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_2 [2020-10-14 17:26:20,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2020-10-14 17:26:20,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2020-10-14 17:26:20,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2020-10-14 17:26:20,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2020-10-14 17:26:20,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2020-10-14 17:26:20,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_8 [2020-10-14 17:26:20,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2020-10-14 17:26:20,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_11 [2020-10-14 17:26:20,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 17:26:20,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-14 17:26:20,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-14 17:26:20,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-14 17:26:20,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-14 17:26:20,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-14 17:26:20,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-14 17:26:20,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-14 17:26:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-14 17:26:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-14 17:26:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-14 17:26:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-14 17:26:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-14 17:26:20,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-14 17:26:20,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-14 17:26:20,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-14 17:26:20,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 17:26:20,435 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-14 17:26:20,435 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-14 17:26:20,435 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-10-14 17:26:20,435 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-10-14 17:26:20,435 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-10-14 17:26:20,435 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-10-14 17:26:20,436 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-10-14 17:26:20,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 17:26:20,436 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-14 17:26:20,436 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-10-14 17:26:20,436 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-10-14 17:26:20,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-14 17:26:20,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-10-14 17:26:20,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-14 17:26:20,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-14 17:26:20,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-10-14 17:26:20,438 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-14 17:26:20,438 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-14 17:26:20,438 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-14 17:26:20,438 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 17:26:20,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-14 17:26:20,439 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 17:26:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 17:26:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 17:26:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-14 17:26:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 17:26:20,440 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2020-10-14 17:26:20,440 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2020-10-14 17:26:20,440 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-14 17:26:20,440 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-14 17:26:20,440 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-14 17:26:20,441 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-14 17:26:20,441 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-14 17:26:20,441 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-10-14 17:26:20,441 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-10-14 17:26:20,441 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-14 17:26:20,441 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-14 17:26:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_8 [2020-10-14 17:26:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2020-10-14 17:26:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-14 17:26:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2020-10-14 17:26:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 17:26:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 17:26:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-14 17:26:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_2 [2020-10-14 17:26:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-14 17:26:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-14 17:26:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_11 [2020-10-14 17:26:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2020-10-14 17:26:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-10-14 17:26:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2020-10-14 17:26:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-10-14 17:26:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2020-10-14 17:26:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2020-10-14 17:26:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2020-10-14 17:26:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-14 17:26:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-14 17:26:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-14 17:26:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-14 17:26:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2020-10-14 17:26:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-14 17:26:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-14 17:26:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-14 17:26:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-14 17:26:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-14 17:26:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-14 17:26:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-14 17:26:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 17:26:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 17:26:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-14 17:26:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-14 17:26:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-14 17:26:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-14 17:26:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 17:26:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 17:26:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 17:26:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 17:26:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 17:26:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 17:26:20,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 17:26:20,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 17:26:20,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-10-14 17:26:20,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-10-14 17:26:20,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-14 17:26:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-14 17:26:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-14 17:26:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-14 17:26:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-14 17:26:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-10-14 17:26:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-10-14 17:26:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-10-14 17:26:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-10-14 17:26:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-10-14 17:26:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-10-14 17:26:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-10-14 17:26:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-10-14 17:26:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-10-14 17:26:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-10-14 17:26:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-10-14 17:26:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2020-10-14 17:26:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 17:26:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_irq [2020-10-14 17:26:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_open [2020-10-14 17:26:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 17:26:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_close [2020-10-14 17:26:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_probe [2020-10-14 17:26:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_disconnect [2020-10-14 17:26:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_init [2020-10-14 17:26:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_exit [2020-10-14 17:26:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 17:26:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 17:26:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 17:26:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 17:26:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-14 17:26:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-14 17:26:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 17:26:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-14 17:26:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-14 17:26:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-14 17:26:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-14 17:26:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-14 17:26:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-14 17:26:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 17:26:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 17:26:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 17:26:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 17:26:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 17:26:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 17:26:21,054 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-14 17:26:21,967 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 17:26:21,967 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 17:26:21,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:26:21 BoogieIcfgContainer [2020-10-14 17:26:21,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 17:26:21,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 17:26:21,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 17:26:21,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 17:26:21,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:26:18" (1/3) ... [2020-10-14 17:26:21,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472661ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:26:21, skipping insertion in model container [2020-10-14 17:26:21,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:26:20" (2/3) ... [2020-10-14 17:26:21,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472661ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:26:21, skipping insertion in model container [2020-10-14 17:26:21,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:26:21" (3/3) ... [2020-10-14 17:26:21,984 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-14 17:26:21,996 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 17:26:22,005 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 17:26:22,021 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 17:26:22,050 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 17:26:22,051 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 17:26:22,051 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 17:26:22,051 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 17:26:22,051 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 17:26:22,051 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 17:26:22,051 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 17:26:22,051 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 17:26:22,081 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states. [2020-10-14 17:26:22,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 17:26:22,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:26:22,092 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] [2020-10-14 17:26:22,092 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:26:22,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:26:22,099 INFO L82 PathProgramCache]: Analyzing trace with hash 500175614, now seen corresponding path program 1 times [2020-10-14 17:26:22,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:26:22,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240780467] [2020-10-14 17:26:22,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:26:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:22,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:22,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:23,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:23,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 17:26:23,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:26:23,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1211 [2020-10-14 17:26:23,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:23,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:23,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:26:23,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-14 17:26:23,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 17:26:23,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 17:26:24,144 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-14 17:26:24,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:26:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:24,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:24,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:24,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:24,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:24,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 17:26:24,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:24,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:24,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:24,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:24,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:24,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:24,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:24,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:24,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:24,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:26:24,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:24,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 17:26:24,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:24,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:24,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:24,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:24,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:24,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:24,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:24,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:24,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 17:26:24,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:24,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:24,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:24,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:26:24,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:24,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:24,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:24,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:26:24,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:24,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 17:26:24,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:24,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:24,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:24,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:24,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:24,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:26:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:24,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:24,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:24,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:26:24,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:24,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 17:26:24,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:24,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:24,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:24,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:24,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:24,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:24,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 17:26:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:24,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:24,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:24,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 17:26:24,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:24,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 17:26:24,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:24,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:24,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:24,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 17:26:24,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:24,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:24,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:26:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:24,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:24,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:24,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 17:26:24,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:24,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 17:26:24,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:24,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:24,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:24,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:26:24,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:24,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:24,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:24,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:24,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:24,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:26:24,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:24,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:24,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:24,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:24,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:24,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:24,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 17:26:24,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240780467] [2020-10-14 17:26:24,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:26:24,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 17:26:24,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819254525] [2020-10-14 17:26:24,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 17:26:24,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:26:24,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 17:26:24,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 17:26:24,518 INFO L87 Difference]: Start difference. First operand 508 states. Second operand 7 states. [2020-10-14 17:26:24,836 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:26:25,225 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-14 17:26:25,521 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-14 17:26:33,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:26:33,004 INFO L93 Difference]: Finished difference Result 1336 states and 1744 transitions. [2020-10-14 17:26:33,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 17:26:33,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2020-10-14 17:26:33,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:26:33,041 INFO L225 Difference]: With dead ends: 1336 [2020-10-14 17:26:33,041 INFO L226 Difference]: Without dead ends: 936 [2020-10-14 17:26:33,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-10-14 17:26:33,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2020-10-14 17:26:33,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 672. [2020-10-14 17:26:33,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2020-10-14 17:26:33,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 799 transitions. [2020-10-14 17:26:33,288 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 799 transitions. Word has length 49 [2020-10-14 17:26:33,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:26:33,289 INFO L479 AbstractCegarLoop]: Abstraction has 672 states and 799 transitions. [2020-10-14 17:26:33,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 17:26:33,289 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 799 transitions. [2020-10-14 17:26:33,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 17:26:33,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:26:33,295 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 17:26:33,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 17:26:33,296 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:26:33,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:26:33,296 INFO L82 PathProgramCache]: Analyzing trace with hash -391939908, now seen corresponding path program 1 times [2020-10-14 17:26:33,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:26:33,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2078632010] [2020-10-14 17:26:33,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:26:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:33,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:33,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:34,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:35,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:35,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 17:26:35,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:26:35,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2465 [2020-10-14 17:26:35,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:35,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:35,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:26:35,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-14 17:26:35,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 17:26:35,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:36,250 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-14 17:26:36,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:26:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:36,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:36,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:36,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:36,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:36,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 17:26:36,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:36,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:36,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:36,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:36,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:36,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:36,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:36,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:36,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:36,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:26:36,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:36,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 17:26:36,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:36,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:36,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:36,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:36,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:36,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 17:26:36,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:36,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:36,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:36,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:36,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:36,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 17:26:36,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:36,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:36,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:36,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:36,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:36,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:36,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:36,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:36,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:36,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:26:36,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:36,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 17:26:36,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:36,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:36,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:36,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:26:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:36,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:36,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:36,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:26:36,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:36,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:26:36,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:36,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:36,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:36,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 17:26:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:36,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:36,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:36,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 17:26:36,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:36,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 17:26:36,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:36,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:36,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:36,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:36,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:36,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:36,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:36,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 17:26:36,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:36,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 17:26:36,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:36,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:36,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:36,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:36,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:36,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:36,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:36,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:36,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:36,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 17:26:36,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:36,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 17:26:36,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:36,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:36,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:36,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:36,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:36,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:36,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:36,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:36,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:36,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:36,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:36,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:26:36,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:36,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:36,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:36,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:36,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:36,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:36,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 17:26:36,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:36,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 17:26:36,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:36,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:36,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:36,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:36,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:36,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:36,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:36,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:36,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:36,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:26:36,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:36,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 17:26:36,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:36,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:36,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:36,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:36,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:36,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:36,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:36,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:36,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 17:26:36,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:36,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:36,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:36,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:36,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:36,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:26:36,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:36,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:36,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:36,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:26:36,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:36,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 17:26:36,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:36,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:36,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:36,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:36,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:36,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 17:26:36,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2078632010] [2020-10-14 17:26:36,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:26:36,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 17:26:36,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913817390] [2020-10-14 17:26:36,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 17:26:36,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:26:36,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 17:26:36,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 17:26:36,998 INFO L87 Difference]: Start difference. First operand 672 states and 799 transitions. Second operand 8 states. [2020-10-14 17:26:37,259 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:26:37,598 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-14 17:26:37,882 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-14 17:26:41,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:26:41,548 INFO L93 Difference]: Finished difference Result 958 states and 1219 transitions. [2020-10-14 17:26:41,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 17:26:41,549 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2020-10-14 17:26:41,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:26:41,556 INFO L225 Difference]: With dead ends: 958 [2020-10-14 17:26:41,556 INFO L226 Difference]: Without dead ends: 947 [2020-10-14 17:26:41,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-14 17:26:41,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2020-10-14 17:26:41,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 672. [2020-10-14 17:26:41,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2020-10-14 17:26:41,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 798 transitions. [2020-10-14 17:26:41,679 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 798 transitions. Word has length 82 [2020-10-14 17:26:41,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:26:41,680 INFO L479 AbstractCegarLoop]: Abstraction has 672 states and 798 transitions. [2020-10-14 17:26:41,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 17:26:41,680 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 798 transitions. [2020-10-14 17:26:41,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 17:26:41,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:26:41,684 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 17:26:41,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 17:26:41,685 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:26:41,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:26:41,685 INFO L82 PathProgramCache]: Analyzing trace with hash -334681606, now seen corresponding path program 1 times [2020-10-14 17:26:41,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:26:41,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1955590346] [2020-10-14 17:26:41,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:26:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:41,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:42,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:42,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:43,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:43,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 17:26:43,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:26:43,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2118 [2020-10-14 17:26:43,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:43,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:43,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 17:26:43,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 17:26:43,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 17:26:43,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:26:44,146 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-14 17:26:44,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:26:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:44,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:44,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:44,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:44,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:44,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 17:26:44,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:44,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:44,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:26:44,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:44,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 17:26:44,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:44,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:44,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:44,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:44,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:26:44,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:44,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 17:26:44,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:44,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:44,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:26:44,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:44,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 17:26:44,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:44,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:44,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:44,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:44,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:44,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:44,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 17:26:44,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:44,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:44,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:44,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:44,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:44,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:44,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:44,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:44,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:44,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:26:44,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:44,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 17:26:44,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:44,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:44,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:44,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:44,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:26:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:44,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:44,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:44,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:26:44,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:44,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 17:26:44,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:44,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:44,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:26:44,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:44,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 17:26:44,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:44,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 17:26:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:44,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:44,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:44,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 17:26:44,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:44,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 17:26:44,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:44,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:44,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:26:44,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:44,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 17:26:44,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:44,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:44,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:44,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:44,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 17:26:44,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:44,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 17:26:44,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:44,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:44,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:44,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:44,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:44,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:44,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 17:26:44,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:44,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 17:26:44,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:44,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:44,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:44,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:44,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:44,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 17:26:44,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:44,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:44,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:44,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:44,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:44,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 17:26:44,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:44,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:44,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:26:44,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:44,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:44,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:44,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 17:26:44,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:44,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 17:26:44,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:44,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:44,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:44,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:44,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:44,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:44,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:44,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:44,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:26:44,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:44,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 17:26:44,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:44,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:44,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:44,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:44,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:44,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:26:44,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:44,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:44,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:44,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:44,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:44,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 17:26:44,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:44,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:44,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:44,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:44,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:44,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:26:44,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:44,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:44,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:44,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:26:44,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:44,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 17:26:44,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:44,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:44,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:44,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:44,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:44,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:26:44,989 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 17:26:44,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1955590346] [2020-10-14 17:26:44,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:26:44,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 17:26:44,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99442205] [2020-10-14 17:26:44,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 17:26:44,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:26:44,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 17:26:44,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 17:26:44,994 INFO L87 Difference]: Start difference. First operand 672 states and 798 transitions. Second operand 8 states. [2020-10-14 17:26:45,296 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:26:45,613 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-14 17:26:45,873 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-14 17:26:53,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:26:53,230 INFO L93 Difference]: Finished difference Result 2485 states and 3139 transitions. [2020-10-14 17:26:53,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 17:26:53,236 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2020-10-14 17:26:53,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:26:53,259 INFO L225 Difference]: With dead ends: 2485 [2020-10-14 17:26:53,259 INFO L226 Difference]: Without dead ends: 1825 [2020-10-14 17:26:53,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-14 17:26:53,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2020-10-14 17:26:53,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1357. [2020-10-14 17:26:53,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1357 states. [2020-10-14 17:26:53,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1624 transitions. [2020-10-14 17:26:53,550 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1624 transitions. Word has length 82 [2020-10-14 17:26:53,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:26:53,551 INFO L479 AbstractCegarLoop]: Abstraction has 1357 states and 1624 transitions. [2020-10-14 17:26:53,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 17:26:53,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1624 transitions. [2020-10-14 17:26:53,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 17:26:53,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:26:53,559 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 17:26:53,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 17:26:53,559 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:26:53,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:26:53,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1785342997, now seen corresponding path program 1 times [2020-10-14 17:26:53,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:26:53,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908162922] [2020-10-14 17:26:53,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:26:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:53,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:53,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:54,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:54,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:54,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 17:26:54,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:26:54,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 938 [2020-10-14 17:26:54,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:54,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:54,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:26:54,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 17:26:54,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 17:26:54,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:54,849 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-14 17:26:54,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:26:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:54,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:54,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:54,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:54,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:54,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 17:26:54,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:54,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:54,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:26:54,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:54,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 17:26:54,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:26:54,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:54,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:26:55,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:55,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 17:26:55,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:26:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:55,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 17:26:55,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:55,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:55,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:55,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:55,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:26:55,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:55,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:55,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:55,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:55,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:26:55,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:55,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:26:55,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:55,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:55,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:55,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:26:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:55,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:26:55,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:55,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:26:55,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:26:55,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:55,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 17:26:55,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:55,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 17:26:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:55,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 17:26:55,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:55,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 17:26:55,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:26:55,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:55,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 17:26:55,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:55,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:55,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 17:26:55,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:55,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 17:26:55,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:55,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:55,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:55,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:55,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:55,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 17:26:55,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:55,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 17:26:55,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:55,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:55,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:55,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:55,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:55,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:26:55,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:55,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:55,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:55,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:55,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:55,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 17:26:55,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:55,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 17:26:55,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:55,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:55,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:55,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:55,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:26:55,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:55,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 17:26:55,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:55,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:55,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:26:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:55,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:26:55,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:55,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:26:55,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:55,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:55,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:55,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:55,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:26:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:26:55,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:26:55,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:26:55,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:26:55,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:26:55,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:26:55,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:26:55,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:26:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:26:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:26:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:26:55,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:26:55,381 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 17:26:55,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908162922] [2020-10-14 17:26:55,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:26:55,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 17:26:55,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508881994] [2020-10-14 17:26:55,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 17:26:55,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:26:55,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 17:26:55,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 17:26:55,392 INFO L87 Difference]: Start difference. First operand 1357 states and 1624 transitions. Second operand 8 states. [2020-10-14 17:26:55,613 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:26:55,942 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-14 17:26:56,221 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-14 17:27:00,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:27:00,123 INFO L93 Difference]: Finished difference Result 1825 states and 2333 transitions. [2020-10-14 17:27:00,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 17:27:00,124 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-14 17:27:00,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:27:00,135 INFO L225 Difference]: With dead ends: 1825 [2020-10-14 17:27:00,135 INFO L226 Difference]: Without dead ends: 1822 [2020-10-14 17:27:00,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-14 17:27:00,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2020-10-14 17:27:00,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1356. [2020-10-14 17:27:00,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1356 states. [2020-10-14 17:27:00,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 1622 transitions. [2020-10-14 17:27:00,403 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 1622 transitions. Word has length 83 [2020-10-14 17:27:00,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:27:00,405 INFO L479 AbstractCegarLoop]: Abstraction has 1356 states and 1622 transitions. [2020-10-14 17:27:00,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 17:27:00,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1622 transitions. [2020-10-14 17:27:00,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 17:27:00,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:27:00,408 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 17:27:00,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 17:27:00,409 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:27:00,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:27:00,409 INFO L82 PathProgramCache]: Analyzing trace with hash 488799005, now seen corresponding path program 1 times [2020-10-14 17:27:00,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:27:00,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133161179] [2020-10-14 17:27:00,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:27:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:00,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:00,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:00,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:01,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:01,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 17:27:01,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:27:01,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 968 [2020-10-14 17:27:01,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:01,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:01,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:01,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 17:27:01,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 17:27:01,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:01,691 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-14 17:27:01,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:27:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:01,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:01,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:01,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:01,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:01,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 17:27:01,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:01,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:01,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:01,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:01,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 17:27:01,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:01,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:01,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:01,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:01,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:01,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:01,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 17:27:01,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:01,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:01,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:01,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:01,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 17:27:01,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:01,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:01,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:01,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:01,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:01,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:01,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:01,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:01,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:01,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:01,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:01,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:01,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:01,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:01,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:01,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:01,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:01,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:01,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:01,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:01,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:01,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:01,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:01,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:01,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:01,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:27:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:01,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:01,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:01,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:27:01,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:01,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 17:27:01,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:01,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:01,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 17:27:01,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 17:27:01,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 17:27:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:02,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:02,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:02,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 17:27:02,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:02,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 17:27:02,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:02,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:02,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:02,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:02,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 17:27:02,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:02,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:02,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:02,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:02,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 17:27:02,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:02,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 17:27:02,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:02,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:02,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:02,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:02,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 43 [2020-10-14 17:27:02,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:02,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:02,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:02,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 17:27:02,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:02,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 17:27:02,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:02,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:02,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:02,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:02,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:02,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:02,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:02,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:02,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:02,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:02,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:02,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:02,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:02,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:02,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:02,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:02,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:02,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:02,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:02,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 17:27:02,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:02,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 17:27:02,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:02,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:02,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:02,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:02,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:02,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:02,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:02,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:02,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:02,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 17:27:02,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:02,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:02,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:02,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:02,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:02,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:02,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:02,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:02,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:02,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:02,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:02,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:02,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:02,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:02,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:02,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:02,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:02,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:02,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:02,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:02,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:02,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:02,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:02,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:02,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:02,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:02,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:02,341 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 17:27:02,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133161179] [2020-10-14 17:27:02,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:27:02,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 17:27:02,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565253862] [2020-10-14 17:27:02,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 17:27:02,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:27:02,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 17:27:02,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 17:27:02,343 INFO L87 Difference]: Start difference. First operand 1356 states and 1622 transitions. Second operand 8 states. [2020-10-14 17:27:02,595 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:27:02,928 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-14 17:27:03,208 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-14 17:27:06,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:27:06,998 INFO L93 Difference]: Finished difference Result 1824 states and 2331 transitions. [2020-10-14 17:27:06,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 17:27:06,999 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-14 17:27:06,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:27:07,008 INFO L225 Difference]: With dead ends: 1824 [2020-10-14 17:27:07,009 INFO L226 Difference]: Without dead ends: 1821 [2020-10-14 17:27:07,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-14 17:27:07,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2020-10-14 17:27:07,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1355. [2020-10-14 17:27:07,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1355 states. [2020-10-14 17:27:07,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1620 transitions. [2020-10-14 17:27:07,301 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1620 transitions. Word has length 84 [2020-10-14 17:27:07,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:27:07,301 INFO L479 AbstractCegarLoop]: Abstraction has 1355 states and 1620 transitions. [2020-10-14 17:27:07,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 17:27:07,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1620 transitions. [2020-10-14 17:27:07,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-14 17:27:07,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:27:07,303 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 17:27:07,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 17:27:07,304 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:27:07,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:27:07,304 INFO L82 PathProgramCache]: Analyzing trace with hash -2027238098, now seen corresponding path program 1 times [2020-10-14 17:27:07,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:27:07,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510235020] [2020-10-14 17:27:07,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:27:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:07,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:07,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:08,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:08,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 17:27:08,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 17:27:08,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1177 [2020-10-14 17:27:08,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:08,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:08,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:08,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 17:27:08,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 17:27:08,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:08,837 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-14 17:27:08,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:27:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:08,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:08,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:08,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:08,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:08,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 17:27:08,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:08,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:08,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 17:27:08,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:08,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:09,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:09,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:09,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:09,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:09,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 17:27:09,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:09,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:09,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:09,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:09,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 17:27:09,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:09,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:09,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:09,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:09,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:09,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:09,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:27:09,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:09,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:09,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:09,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:09,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:09,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:09,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:09,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:09,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:09,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:27:09,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:09,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:09,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:09,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:09,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:09,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:09,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:27:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:09,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:09,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:09,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:27:09,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:09,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:27:09,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:09,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:09,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:09,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 17:27:09,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:09,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 17:27:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:09,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:09,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:09,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 17:27:09,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:09,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 17:27:09,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:09,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:09,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:09,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 17:27:09,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:09,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:09,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:09,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:09,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 17:27:09,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:09,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 17:27:09,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:09,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:09,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:09,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:09,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:09,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:09,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:09,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:09,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:09,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 17:27:09,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:09,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 17:27:09,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:09,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:09,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:09,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:09,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:09,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:09,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:09,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:09,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:09,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:27:09,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:09,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:09,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:09,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:27:09,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:09,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:09,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:09,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 17:27:09,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:09,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 17:27:09,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:09,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:09,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:09,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:09,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:09,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:27:09,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:09,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:09,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:09,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:09,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:09,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 17:27:09,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:09,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:09,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:09,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:09,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:09,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:27:09,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:09,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:09,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:09,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:09,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:09,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 17:27:09,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:09,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:09,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:09,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:09,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:09,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:27:09,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:09,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:09,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:09,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:09,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:09,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:27:09,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:09,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:09,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:09,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:09,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:09,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 17:27:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 17:27:09,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510235020] [2020-10-14 17:27:09,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 17:27:09,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 17:27:09,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709210956] [2020-10-14 17:27:09,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 17:27:09,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 17:27:09,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 17:27:09,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 17:27:09,521 INFO L87 Difference]: Start difference. First operand 1355 states and 1620 transitions. Second operand 8 states. [2020-10-14 17:27:09,853 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-14 17:27:10,169 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-14 17:27:10,516 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-14 17:27:13,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 17:27:13,936 INFO L93 Difference]: Finished difference Result 1823 states and 2329 transitions. [2020-10-14 17:27:13,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 17:27:13,937 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2020-10-14 17:27:13,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 17:27:13,946 INFO L225 Difference]: With dead ends: 1823 [2020-10-14 17:27:13,946 INFO L226 Difference]: Without dead ends: 1802 [2020-10-14 17:27:13,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-14 17:27:13,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2020-10-14 17:27:14,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1336. [2020-10-14 17:27:14,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2020-10-14 17:27:14,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1598 transitions. [2020-10-14 17:27:14,187 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1598 transitions. Word has length 85 [2020-10-14 17:27:14,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 17:27:14,187 INFO L479 AbstractCegarLoop]: Abstraction has 1336 states and 1598 transitions. [2020-10-14 17:27:14,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 17:27:14,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1598 transitions. [2020-10-14 17:27:14,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-14 17:27:14,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 17:27:14,195 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, 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, 1, 1, 1, 1] [2020-10-14 17:27:14,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 17:27:14,195 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 17:27:14,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 17:27:14,195 INFO L82 PathProgramCache]: Analyzing trace with hash -623508455, now seen corresponding path program 1 times [2020-10-14 17:27:14,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 17:27:14,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021349929] [2020-10-14 17:27:14,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 17:27:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:14,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:14,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:14,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:14,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:14,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:14,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:19,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:19,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-14 17:27:19,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 17:27:19,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-14 17:27:19,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:19,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:19,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 17:27:19,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-14 17:27:19,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:27:19,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:19,574 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-14 17:27:19,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 17:27:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:19,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:19,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:19,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:19,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:19,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 17:27:19,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:19,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:19,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:19,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:19,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:19,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:19,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:19,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:19,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:19,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 17:27:19,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:19,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 17:27:19,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:19,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:19,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:19,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:19,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:19,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:19,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:19,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:19,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:19,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:19,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:19,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 17:27:19,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:19,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:19,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:19,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:19,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:19,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:19,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 17:27:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:19,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:19,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:19,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:19,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:19,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:19,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:19,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:19,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:19,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:19,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:19,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:19,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 17:27:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:19,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:19,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:19,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 17:27:19,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:19,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 17:27:19,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:19,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:19,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:19,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:19,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 17:27:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:19,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:19,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:19,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:19,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:20,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:24,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:24,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-14 17:27:24,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 17:27:24,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 17:27:24,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:24,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:24,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 17:27:24,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-14 17:27:24,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 17:27:24,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:24,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:24,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:24,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:24,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:24,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 17:27:24,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:27:24,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 17:27:24,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:24,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:24,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:24,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:24,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:24,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:24,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:24,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:24,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:25,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:25,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 17:27:25,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 17:27:25,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 17:27:25,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:25,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:25,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:25,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:25,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:25,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:25,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:25,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:25,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:25,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 17:27:25,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:25,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 17:27:25,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:25,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:25,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:25,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:25,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:25,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 17:27:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:25,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:25,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:25,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 17:27:25,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:25,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 17:27:25,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:25,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 17:27:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 17:27:25,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 17:27:25,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 17:27:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:25,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:25,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:25,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:25,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:25,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 17:27:25,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:25,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:25,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 17:27:25,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:25,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 17:27:25,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 17:27:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 17:27:25,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 17:27:25,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 17:27:25,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 17:27:25,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 17:27:25,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 17:27:25,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 17:27:25,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 17:27:25,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 17:27:25,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 17:27:25,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 17:27:25,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 17:27:25,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 17:27:25,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 17:27:25,153 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 [2020-10-14 17:27:25,168 INFO L168 Benchmark]: Toolchain (without parser) took 66749.15 ms. Allocated memory was 140.5 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 98.1 MB in the beginning and 260.2 MB in the end (delta: -162.1 MB). Peak memory consumption was 864.5 MB. Max. memory is 7.1 GB. [2020-10-14 17:27:25,172 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-14 17:27:25,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1731.92 ms. Allocated memory was 140.5 MB in the beginning and 206.0 MB in the end (delta: 65.5 MB). Free memory was 97.7 MB in the beginning and 117.6 MB in the end (delta: -19.8 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. [2020-10-14 17:27:25,176 INFO L168 Benchmark]: Boogie Preprocessor took 170.77 ms. Allocated memory is still 206.0 MB. Free memory was 117.6 MB in the beginning and 109.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. [2020-10-14 17:27:25,176 INFO L168 Benchmark]: RCFGBuilder took 1654.92 ms. Allocated memory was 206.0 MB in the beginning and 254.3 MB in the end (delta: 48.2 MB). Free memory was 109.4 MB in the beginning and 186.4 MB in the end (delta: -77.1 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. [2020-10-14 17:27:25,177 INFO L168 Benchmark]: TraceAbstraction took 63181.80 ms. Allocated memory was 254.3 MB in the beginning and 1.2 GB in the end (delta: 912.8 MB). Free memory was 186.4 MB in the beginning and 260.2 MB in the end (delta: -73.8 MB). Peak memory consumption was 839.0 MB. Max. memory is 7.1 GB. [2020-10-14 17:27:25,183 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 140.5 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1731.92 ms. Allocated memory was 140.5 MB in the beginning and 206.0 MB in the end (delta: 65.5 MB). Free memory was 97.7 MB in the beginning and 117.6 MB in the end (delta: -19.8 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 170.77 ms. Allocated memory is still 206.0 MB. Free memory was 117.6 MB in the beginning and 109.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1654.92 ms. Allocated memory was 206.0 MB in the beginning and 254.3 MB in the end (delta: 48.2 MB). Free memory was 109.4 MB in the beginning and 186.4 MB in the end (delta: -77.1 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 63181.80 ms. Allocated memory was 254.3 MB in the beginning and 1.2 GB in the end (delta: 912.8 MB). Free memory was 186.4 MB in the beginning and 260.2 MB in the end (delta: -73.8 MB). Peak memory consumption was 839.0 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...