/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 16:46:36,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 16:46:36,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 16:46:36,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 16:46:36,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 16:46:36,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 16:46:36,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 16:46:36,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 16:46:36,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 16:46:36,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 16:46:36,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 16:46:36,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 16:46:36,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 16:46:36,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 16:46:36,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 16:46:36,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 16:46:36,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 16:46:36,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 16:46:36,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 16:46:36,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 16:46:36,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 16:46:36,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 16:46:36,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 16:46:36,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 16:46:36,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 16:46:36,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 16:46:36,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 16:46:36,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 16:46:36,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 16:46:36,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 16:46:36,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 16:46:36,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 16:46:36,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 16:46:36,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 16:46:36,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 16:46:36,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 16:46:36,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 16:46:36,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 16:46:36,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 16:46:36,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 16:46:36,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 16:46:36,555 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 [2020-10-29 16:46:36,612 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 16:46:36,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 16:46:36,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 16:46:36,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 16:46:36,619 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 16:46:36,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 16:46:36,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 16:46:36,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 16:46:36,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 16:46:36,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 16:46:36,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 16:46:36,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 16:46:36,622 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 16:46:36,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 16:46:36,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 16:46:36,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 16:46:36,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 16:46:36,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 16:46:36,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 16:46:36,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 16:46:36,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 16:46:36,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 16:46:36,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 16:46:36,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 16:46:36,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 16:46:36,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 16:46:36,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-29 16:46:36,625 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 16:46:37,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 16:46:37,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 16:46:37,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 16:46:37,051 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 16:46:37,052 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 16:46:37,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2020-10-29 16:46:37,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5388b203/cda0c2a1660d41caafaa1529bacb0f24/FLAG179161450 [2020-10-29 16:46:38,032 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 16:46:38,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2020-10-29 16:46:38,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5388b203/cda0c2a1660d41caafaa1529bacb0f24/FLAG179161450 [2020-10-29 16:46:38,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5388b203/cda0c2a1660d41caafaa1529bacb0f24 [2020-10-29 16:46:38,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 16:46:38,170 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 16:46:38,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 16:46:38,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 16:46:38,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 16:46:38,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:46:38" (1/1) ... [2020-10-29 16:46:38,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2158dd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:38, skipping insertion in model container [2020-10-29 16:46:38,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:46:38" (1/1) ... [2020-10-29 16:46:38,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 16:46:38,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 16:46:39,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 16:46:39,152 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 16:46:39,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 16:46:39,333 INFO L208 MainTranslator]: Completed translation [2020-10-29 16:46:39,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:39 WrapperNode [2020-10-29 16:46:39,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 16:46:39,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 16:46:39,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 16:46:39,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 16:46:39,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:39" (1/1) ... [2020-10-29 16:46:39,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:39" (1/1) ... [2020-10-29 16:46:39,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:39" (1/1) ... [2020-10-29 16:46:39,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:39" (1/1) ... [2020-10-29 16:46:39,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:39" (1/1) ... [2020-10-29 16:46:39,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:39" (1/1) ... [2020-10-29 16:46:39,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:39" (1/1) ... [2020-10-29 16:46:39,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 16:46:39,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 16:46:39,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 16:46:39,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 16:46:39,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:39" (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 [2020-10-29 16:46:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 16:46:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 16:46:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-29 16:46:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 16:46:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 16:46:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-29 16:46:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-29 16:46:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-29 16:46:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-29 16:46:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-29 16:46:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-29 16:46:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-29 16:46:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-29 16:46:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_probe [2020-10-29 16:46:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_disconnect [2020-10-29 16:46:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_driver_init [2020-10-29 16:46:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_driver_exit [2020-10-29 16:46:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-29 16:46:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 16:46:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-29 16:46:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_2 [2020-10-29 16:46:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_3 [2020-10-29 16:46:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_4 [2020-10-29 16:46:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_5 [2020-10-29 16:46:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-29 16:46:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-29 16:46:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-29 16:46:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-29 16:46:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-29 16:46:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-29 16:46:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-29 16:46:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-29 16:46:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-29 16:46:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-29 16:46:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-29 16:46:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-29 16:46:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-29 16:46:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-29 16:46:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-29 16:46:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-29 16:46:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-29 16:46:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure cypress_load_firmware [2020-10-29 16:46:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-29 16:46:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-29 16:46:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2020-10-29 16:46:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2020-10-29 16:46:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-29 16:46:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-29 16:46:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-29 16:46:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-29 16:46:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 16:46:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 16:46:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 16:46:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 16:46:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 16:46:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 16:46:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-29 16:46:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-29 16:46:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-29 16:46:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_3 [2020-10-29 16:46:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-29 16:46:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_2 [2020-10-29 16:46:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-29 16:46:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_4 [2020-10-29 16:46:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-29 16:46:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_5 [2020-10-29 16:46:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-29 16:46:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-29 16:46:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-29 16:46:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 16:46:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-29 16:46:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 16:46:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-29 16:46:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 16:46:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-29 16:46:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 16:46:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-29 16:46:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-29 16:46:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-29 16:46:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-29 16:46:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-29 16:46:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-29 16:46:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-29 16:46:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-29 16:46:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2020-10-29 16:46:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2020-10-29 16:46:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure cypress_load_firmware [2020-10-29 16:46:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_probe [2020-10-29 16:46:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 16:46:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 16:46:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 16:46:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_disconnect [2020-10-29 16:46:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_driver_init [2020-10-29 16:46:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_driver_exit [2020-10-29 16:46:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-29 16:46:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-29 16:46:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 16:46:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-29 16:46:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-29 16:46:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-29 16:46:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-29 16:46:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-29 16:46:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-29 16:46:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-29 16:46:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-29 16:46:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-29 16:46:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-29 16:46:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-29 16:46:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-29 16:46:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-29 16:46:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 16:46:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-29 16:46:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 16:46:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 16:46:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-29 16:46:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 16:46:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 16:46:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 16:46:40,360 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-29 16:46:41,135 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-29 16:46:41,182 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 16:46:41,182 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-29 16:46:41,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:46:41 BoogieIcfgContainer [2020-10-29 16:46:41,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 16:46:41,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 16:46:41,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 16:46:41,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 16:46:41,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:46:38" (1/3) ... [2020-10-29 16:46:41,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd573e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:46:41, skipping insertion in model container [2020-10-29 16:46:41,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:39" (2/3) ... [2020-10-29 16:46:41,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd573e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:46:41, skipping insertion in model container [2020-10-29 16:46:41,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:46:41" (3/3) ... [2020-10-29 16:46:41,195 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2020-10-29 16:46:41,208 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 16:46:41,214 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 16:46:41,228 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 16:46:41,260 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 16:46:41,260 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 16:46:41,260 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 16:46:41,261 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 16:46:41,261 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 16:46:41,261 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 16:46:41,261 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 16:46:41,261 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 16:46:41,288 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states. [2020-10-29 16:46:41,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-29 16:46:41,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 16:46:41,299 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] [2020-10-29 16:46:41,300 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 16:46:41,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 16:46:41,310 INFO L82 PathProgramCache]: Analyzing trace with hash 219055821, now seen corresponding path program 1 times [2020-10-29 16:46:41,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 16:46:41,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736265681] [2020-10-29 16:46:41,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 16:46:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:41,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:42,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:42,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:42,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-29 16:46:42,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 16:46:42,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1251 [2020-10-29 16:46:42,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:42,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:42,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:46:42,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 16:46:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 16:46:42,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 16:46:43,621 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-29 16:46:43,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:46:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:43,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:43,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:43,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:46:43,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:43,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-29 16:46:43,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:43,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:43,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:46:43,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:43,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 16:46:43,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:46:44,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 16:46:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:44,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:44,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:44,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:46:44,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:44,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 16:46:44,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:44,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:44,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:46:44,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:44,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 16:46:44,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:46:44,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 16:46:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:44,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:44,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:44,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 16:46:44,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:44,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 16:46:44,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:44,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:44,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:46:44,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:44,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 16:46:44,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:46:44,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 16:46:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:44,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:44,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:44,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 16:46:44,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:44,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 16:46:44,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:44,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:44,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:46:44,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:44,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 16:46:44,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:46:44,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:46:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:44,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:44,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:44,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 16:46:44,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:44,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 16:46:44,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:44,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:44,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:46:44,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:44,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:46:44,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:46:44,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:46:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:44,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:44,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:44,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:46:44,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:44,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 16:46:44,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:44,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:44,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:46:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:46:44,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:46:44,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 16:46:44,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736265681] [2020-10-29 16:46:44,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 16:46:44,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 16:46:44,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870693846] [2020-10-29 16:46:44,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 16:46:44,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 16:46:44,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 16:46:44,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 16:46:44,335 INFO L87 Difference]: Start difference. First operand 249 states. Second operand 7 states. [2020-10-29 16:46:44,835 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-29 16:46:45,374 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-29 16:46:45,996 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-29 16:46:48,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 16:46:48,220 INFO L93 Difference]: Finished difference Result 472 states and 613 transitions. [2020-10-29 16:46:48,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 16:46:48,223 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-10-29 16:46:48,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 16:46:48,238 INFO L225 Difference]: With dead ends: 472 [2020-10-29 16:46:48,238 INFO L226 Difference]: Without dead ends: 250 [2020-10-29 16:46:48,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-10-29 16:46:48,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-29 16:46:48,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 191. [2020-10-29 16:46:48,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-29 16:46:48,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 229 transitions. [2020-10-29 16:46:48,375 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 229 transitions. Word has length 41 [2020-10-29 16:46:48,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 16:46:48,376 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 229 transitions. [2020-10-29 16:46:48,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 16:46:48,376 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 229 transitions. [2020-10-29 16:46:48,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-29 16:46:48,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 16:46:48,380 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] [2020-10-29 16:46:48,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 16:46:48,380 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 16:46:48,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 16:46:48,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1983783437, now seen corresponding path program 1 times [2020-10-29 16:46:48,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 16:46:48,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527269153] [2020-10-29 16:46:48,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 16:46:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:48,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:48,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:49,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:49,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-29 16:46:49,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 16:46:49,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1258 [2020-10-29 16:46:49,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:49,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:49,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 16:46:49,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 16:46:49,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-29 16:46:49,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:46:50,286 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-29 16:46:50,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:46:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:50,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:50,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:50,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:46:50,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:50,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-29 16:46:50,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:50,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:50,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:46:50,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:50,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 16:46:50,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:46:50,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 16:46:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:50,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:50,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:50,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:46:50,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:50,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 16:46:50,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:50,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:46:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 16:46:50,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:46:50,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 16:46:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:50,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:50,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:50,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 16:46:50,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:50,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 16:46:50,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:50,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:50,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:46:50,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:50,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 16:46:50,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:46:50,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 16:46:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:50,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:50,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:50,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 16:46:50,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:50,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 16:46:50,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:50,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:50,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:46:50,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:50,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 16:46:50,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:46:50,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:46:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:50,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:50,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:50,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 16:46:50,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:50,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 16:46:50,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:50,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:50,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:46:50,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:50,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:46:50,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:46:50,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:46:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:50,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:50,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:50,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:46:50,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:50,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 16:46:50,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:50,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:50,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:46:50,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:50,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:46:50,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:46:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 16:46:50,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527269153] [2020-10-29 16:46:50,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 16:46:50,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 16:46:50,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829331123] [2020-10-29 16:46:50,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 16:46:50,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 16:46:50,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 16:46:50,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 16:46:50,649 INFO L87 Difference]: Start difference. First operand 191 states and 229 transitions. Second operand 6 states. [2020-10-29 16:46:51,178 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-29 16:46:51,835 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-29 16:46:52,436 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-29 16:46:55,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 16:46:55,803 INFO L93 Difference]: Finished difference Result 627 states and 767 transitions. [2020-10-29 16:46:55,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 16:46:55,804 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-10-29 16:46:55,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 16:46:55,811 INFO L225 Difference]: With dead ends: 627 [2020-10-29 16:46:55,811 INFO L226 Difference]: Without dead ends: 448 [2020-10-29 16:46:55,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-29 16:46:55,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-29 16:46:55,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 364. [2020-10-29 16:46:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-10-29 16:46:55,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 438 transitions. [2020-10-29 16:46:55,914 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 438 transitions. Word has length 42 [2020-10-29 16:46:55,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 16:46:55,915 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 438 transitions. [2020-10-29 16:46:55,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 16:46:55,915 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 438 transitions. [2020-10-29 16:46:55,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-29 16:46:55,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 16:46:55,918 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] [2020-10-29 16:46:55,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 16:46:55,918 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 16:46:55,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 16:46:55,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1547646512, now seen corresponding path program 1 times [2020-10-29 16:46:55,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 16:46:55,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892950504] [2020-10-29 16:46:55,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 16:46:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:55,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:56,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:57,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:57,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-29 16:46:57,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 16:46:57,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1188 [2020-10-29 16:46:57,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:57,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:57,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 16:46:57,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 16:46:57,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 16:46:57,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:46:57,731 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-29 16:46:57,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:46:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:57,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:57,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:57,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:46:57,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:57,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-29 16:46:57,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:57,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:46:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 16:46:57,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:46:57,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 16:46:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:57,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:57,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:57,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:46:57,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:57,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 16:46:57,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:57,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:57,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:46:57,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:57,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 16:46:57,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:46:57,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 16:46:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:57,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:57,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:57,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 16:46:57,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:57,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 16:46:57,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:57,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:57,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:46:57,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:57,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 16:46:57,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:46:57,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 16:46:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:57,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:57,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:57,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 16:46:57,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:57,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 16:46:57,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:57,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:57,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:46:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 16:46:58,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:46:58,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:46:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:58,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:58,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:58,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 16:46:58,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:58,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 16:46:58,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:58,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:58,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:46:58,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:58,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:46:58,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:46:58,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:46:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:46:58,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:46:58,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:46:58,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:46:58,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:46:58,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 16:46:58,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:46:58,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:46:58,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:46:58,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:46:58,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:46:58,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:46:58,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 16:46:58,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892950504] [2020-10-29 16:46:58,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 16:46:58,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 16:46:58,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867541689] [2020-10-29 16:46:58,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 16:46:58,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 16:46:58,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 16:46:58,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 16:46:58,038 INFO L87 Difference]: Start difference. First operand 364 states and 438 transitions. Second operand 6 states. [2020-10-29 16:46:58,511 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-29 16:46:59,126 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-29 16:46:59,712 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-29 16:47:03,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 16:47:03,044 INFO L93 Difference]: Finished difference Result 448 states and 543 transitions. [2020-10-29 16:47:03,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 16:47:03,046 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-10-29 16:47:03,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 16:47:03,050 INFO L225 Difference]: With dead ends: 448 [2020-10-29 16:47:03,051 INFO L226 Difference]: Without dead ends: 443 [2020-10-29 16:47:03,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-29 16:47:03,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-10-29 16:47:03,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 365. [2020-10-29 16:47:03,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-10-29 16:47:03,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 439 transitions. [2020-10-29 16:47:03,158 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 439 transitions. Word has length 43 [2020-10-29 16:47:03,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 16:47:03,159 INFO L481 AbstractCegarLoop]: Abstraction has 365 states and 439 transitions. [2020-10-29 16:47:03,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 16:47:03,159 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 439 transitions. [2020-10-29 16:47:03,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-29 16:47:03,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 16:47:03,161 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] [2020-10-29 16:47:03,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 16:47:03,162 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 16:47:03,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 16:47:03,162 INFO L82 PathProgramCache]: Analyzing trace with hash -907626538, now seen corresponding path program 1 times [2020-10-29 16:47:03,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 16:47:03,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774795820] [2020-10-29 16:47:03,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 16:47:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:03,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:03,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:03,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:03,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-29 16:47:03,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 16:47:03,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-10-29 16:47:03,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:03,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:03,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:03,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 16:47:03,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-29 16:47:03,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:04,256 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-29 16:47:04,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:47:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:04,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:04,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:04,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:04,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:04,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-29 16:47:04,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:04,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:04,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:04,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:04,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 16:47:04,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:04,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 16:47:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:04,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:04,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:04,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:47:04,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:04,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 16:47:04,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:04,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 16:47:04,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:04,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 16:47:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:04,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:04,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:04,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 16:47:04,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:04,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 16:47:04,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:04,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 16:47:04,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:04,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 16:47:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:04,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:04,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:04,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 16:47:04,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:04,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 16:47:04,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:04,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:04,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:04,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:04,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 16:47:04,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:04,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:47:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:04,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:04,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:04,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 16:47:04,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:04,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 16:47:04,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:04,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:04,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:04,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:04,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:04,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:04,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:04,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:04,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:04,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:04,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:04,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 16:47:04,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:04,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:04,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:04,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:04,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:04,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:04,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 16:47:04,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774795820] [2020-10-29 16:47:04,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 16:47:04,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 16:47:04,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445778322] [2020-10-29 16:47:04,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 16:47:04,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 16:47:04,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 16:47:04,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 16:47:04,621 INFO L87 Difference]: Start difference. First operand 365 states and 439 transitions. Second operand 6 states. [2020-10-29 16:47:05,127 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-29 16:47:05,761 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-29 16:47:06,379 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-29 16:47:08,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 16:47:08,235 INFO L93 Difference]: Finished difference Result 443 states and 538 transitions. [2020-10-29 16:47:08,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 16:47:08,236 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-10-29 16:47:08,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 16:47:08,240 INFO L225 Difference]: With dead ends: 443 [2020-10-29 16:47:08,240 INFO L226 Difference]: Without dead ends: 438 [2020-10-29 16:47:08,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-29 16:47:08,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2020-10-29 16:47:08,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 364. [2020-10-29 16:47:08,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-10-29 16:47:08,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 437 transitions. [2020-10-29 16:47:08,319 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 437 transitions. Word has length 44 [2020-10-29 16:47:08,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 16:47:08,319 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 437 transitions. [2020-10-29 16:47:08,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 16:47:08,320 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 437 transitions. [2020-10-29 16:47:08,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-29 16:47:08,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 16:47:08,322 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] [2020-10-29 16:47:08,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 16:47:08,322 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 16:47:08,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 16:47:08,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1757800659, now seen corresponding path program 1 times [2020-10-29 16:47:08,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 16:47:08,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328226611] [2020-10-29 16:47:08,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 16:47:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:08,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:08,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:08,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:08,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-29 16:47:08,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 16:47:08,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 496 [2020-10-29 16:47:08,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:08,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:08,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:08,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 16:47:08,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-29 16:47:08,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:09,435 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-29 16:47:09,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:47:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:09,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:09,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:09,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:09,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:09,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-29 16:47:09,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:09,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:09,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:09,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 16:47:09,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:09,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 16:47:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:09,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:09,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:09,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:47:09,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:09,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 16:47:09,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:09,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:09,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:09,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:09,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 16:47:09,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:09,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 16:47:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:09,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:09,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:09,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 16:47:09,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:09,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 16:47:09,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:09,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:09,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:09,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:09,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 16:47:09,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:09,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 16:47:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:09,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:09,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:09,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 16:47:09,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:09,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 16:47:09,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:09,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:09,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:09,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:09,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 16:47:09,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:09,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:47:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:09,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:09,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:09,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 16:47:09,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:09,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 16:47:09,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:09,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:09,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:09,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:09,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:09,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:09,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:09,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:09,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:09,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:09,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:09,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 16:47:09,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:09,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:09,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:09,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:09,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 16:47:09,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328226611] [2020-10-29 16:47:09,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 16:47:09,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 16:47:09,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486902002] [2020-10-29 16:47:09,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 16:47:09,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 16:47:09,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 16:47:09,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 16:47:09,755 INFO L87 Difference]: Start difference. First operand 364 states and 437 transitions. Second operand 6 states. [2020-10-29 16:47:10,261 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-29 16:47:10,901 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-29 16:47:11,519 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-29 16:47:13,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 16:47:13,391 INFO L93 Difference]: Finished difference Result 442 states and 536 transitions. [2020-10-29 16:47:13,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 16:47:13,393 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-10-29 16:47:13,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 16:47:13,397 INFO L225 Difference]: With dead ends: 442 [2020-10-29 16:47:13,398 INFO L226 Difference]: Without dead ends: 415 [2020-10-29 16:47:13,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-29 16:47:13,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-10-29 16:47:13,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 344. [2020-10-29 16:47:13,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-10-29 16:47:13,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 414 transitions. [2020-10-29 16:47:13,459 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 414 transitions. Word has length 45 [2020-10-29 16:47:13,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 16:47:13,460 INFO L481 AbstractCegarLoop]: Abstraction has 344 states and 414 transitions. [2020-10-29 16:47:13,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 16:47:13,460 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 414 transitions. [2020-10-29 16:47:13,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-29 16:47:13,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 16:47:13,463 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 16:47:13,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 16:47:13,463 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 16:47:13,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 16:47:13,464 INFO L82 PathProgramCache]: Analyzing trace with hash 166215177, now seen corresponding path program 1 times [2020-10-29 16:47:13,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 16:47:13,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382619051] [2020-10-29 16:47:13,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 16:47:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:13,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:13,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:13,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:13,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:13,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:15,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:18,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:18,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 16:47:18,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 16:47:18,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-29 16:47:18,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:18,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:18,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:18,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 16:47:18,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 16:47:18,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:19,105 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-29 16:47:19,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:47:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:19,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:19,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:19,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:19,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:19,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 16:47:19,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:19,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:19,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:19,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:19,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:19,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:19,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 16:47:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:19,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:19,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:19,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:47:19,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:19,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 16:47:19,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:19,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:19,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:19,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 16:47:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:19,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:19,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:19,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 16:47:19,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:19,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 16:47:19,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:19,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:19,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:19,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:19,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:19,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 16:47:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:19,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:19,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:19,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:21,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:21,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 16:47:21,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 16:47:21,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1873 [2020-10-29 16:47:21,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:21,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:21,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:21,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 16:47:21,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:21,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:21,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:21,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:21,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:21,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 16:47:21,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 16:47:21,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 16:47:21,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:21,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 16:47:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 16:47:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 16:47:21,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:21,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:21,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:21,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:21,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 16:47:21,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:21,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 16:47:21,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:21,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:21,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 16:47:21,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 16:47:21,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 16:47:21,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:21,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:21,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:21,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:21,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:47:21,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:21,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 16:47:21,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:21,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 16:47:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 16:47:21,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:21,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 16:47:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:21,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:21,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:21,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 16:47:21,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:21,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 16:47:21,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:21,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:21,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:21,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:21,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:21,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:21,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:21,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:21,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:21,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 16:47:21,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:21,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 16:47:21,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:21,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:21,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:21,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:21,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:21,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:21,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 16:47:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:21,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:21,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:21,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:21,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:21,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 16:47:21,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:21,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:21,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:21,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 16:47:21,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 16:47:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:21,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:21,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:21,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 16:47:21,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:21,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 16:47:21,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:21,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 16:47:21,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:21,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:21,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:47:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:21,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:21,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:21,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 16:47:21,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:21,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 16:47:21,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:21,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:21,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:21,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:21,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:21,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:21,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:21,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:21,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:21,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:21,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:21,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 16:47:21,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:21,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:21,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:21,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:21,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:21,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:21,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-29 16:47:21,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382619051] [2020-10-29 16:47:21,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 16:47:21,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 16:47:21,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064208282] [2020-10-29 16:47:21,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 16:47:21,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 16:47:21,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 16:47:21,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-29 16:47:21,626 INFO L87 Difference]: Start difference. First operand 344 states and 414 transitions. Second operand 12 states. [2020-10-29 16:47:22,140 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-29 16:47:22,731 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-29 16:47:23,350 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-29 16:47:24,446 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-29 16:47:25,100 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-29 16:47:25,694 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-10-29 16:47:28,033 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2020-10-29 16:47:28,661 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2020-10-29 16:47:29,312 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-29 16:47:30,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 16:47:30,821 INFO L93 Difference]: Finished difference Result 1067 states and 1354 transitions. [2020-10-29 16:47:30,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 16:47:30,822 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2020-10-29 16:47:30,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 16:47:30,828 INFO L225 Difference]: With dead ends: 1067 [2020-10-29 16:47:30,828 INFO L226 Difference]: Without dead ends: 719 [2020-10-29 16:47:30,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2020-10-29 16:47:30,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-10-29 16:47:30,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 645. [2020-10-29 16:47:30,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-10-29 16:47:30,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 807 transitions. [2020-10-29 16:47:30,960 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 807 transitions. Word has length 91 [2020-10-29 16:47:30,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 16:47:30,960 INFO L481 AbstractCegarLoop]: Abstraction has 645 states and 807 transitions. [2020-10-29 16:47:30,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 16:47:30,961 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 807 transitions. [2020-10-29 16:47:30,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-29 16:47:30,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 16:47:30,964 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 16:47:30,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 16:47:30,964 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 16:47:30,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 16:47:30,965 INFO L82 PathProgramCache]: Analyzing trace with hash 430616067, now seen corresponding path program 1 times [2020-10-29 16:47:30,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 16:47:30,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941029156] [2020-10-29 16:47:30,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 16:47:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:31,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:31,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:31,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:31,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:36,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:36,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-29 16:47:36,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 16:47:36,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-29 16:47:36,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:36,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:36,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 16:47:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-29 16:47:36,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 16:47:36,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:36,643 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-29 16:47:36,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:47:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:36,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:36,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:36,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:36,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:36,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 16:47:36,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:36,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:36,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:36,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:36,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:36,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:36,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 16:47:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:36,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:36,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:36,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:47:36,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:36,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 16:47:36,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:36,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:36,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:36,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:36,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:36,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:36,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 16:47:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:36,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:36,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:36,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 16:47:36,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:36,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 16:47:36,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:36,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:36,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:36,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 16:47:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:36,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:37,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:37,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:37,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-29 16:47:37,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 16:47:37,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 767 [2020-10-29 16:47:37,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:37,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:37,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 16:47:37,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-29 16:47:37,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 16:47:37,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:37,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:37,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:37,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:38,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:38,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 16:47:38,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 16:47:38,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325 [2020-10-29 16:47:38,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:38,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:38,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 16:47:38,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:38,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 16:47:38,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:38,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:38,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:38,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:38,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:38,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 16:47:38,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 16:47:38,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-29 16:47:38,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:38,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:38,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 16:47:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 16:47:38,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:38,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:38,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:38,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:38,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 16:47:38,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:38,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 16:47:38,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:38,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:38,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:38,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:38,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:38,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:38,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 16:47:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:38,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:38,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:38,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:47:38,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:38,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 16:47:38,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:38,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:38,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:38,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:38,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 16:47:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:38,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:38,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:38,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 16:47:38,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:38,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 16:47:38,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:38,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:38,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 16:47:38,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:38,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 16:47:38,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:38,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:38,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:38,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:38,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 16:47:38,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:38,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 16:47:38,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:38,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:38,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 16:47:38,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:38,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 16:47:38,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:39,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 16:47:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:39,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:39,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:39,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:39,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:39,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 16:47:39,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:39,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:39,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:39,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:39,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 16:47:39,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:39,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 16:47:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:39,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:39,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:39,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 16:47:39,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:39,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 16:47:39,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:39,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:39,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:39,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-29 16:47:39,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:39,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:39,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:39,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:39,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:39,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 16:47:39,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:39,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 16:47:39,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:39,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:39,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:39,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:39,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:39,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:39,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:39,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:39,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:39,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:39,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:39,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 16:47:39,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:39,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:39,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:39,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:39,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:39,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:39,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 16:47:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:39,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:39,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:39,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 16:47:39,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:39,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 16:47:39,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:39,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:39,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:39,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:39,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:39,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:39,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:39,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:39,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:39,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:47:39,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:39,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 16:47:39,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:39,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:39,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:39,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:39,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:39,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:39,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 16:47:39,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941029156] [2020-10-29 16:47:39,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 16:47:39,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-10-29 16:47:39,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14832608] [2020-10-29 16:47:39,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 16:47:39,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 16:47:39,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 16:47:39,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2020-10-29 16:47:39,283 INFO L87 Difference]: Start difference. First operand 645 states and 807 transitions. Second operand 23 states. [2020-10-29 16:47:39,852 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-29 16:47:42,755 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2020-10-29 16:47:43,371 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2020-10-29 16:47:46,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 16:47:46,924 INFO L93 Difference]: Finished difference Result 1141 states and 1462 transitions. [2020-10-29 16:47:46,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 16:47:46,925 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 113 [2020-10-29 16:47:46,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 16:47:46,930 INFO L225 Difference]: With dead ends: 1141 [2020-10-29 16:47:46,931 INFO L226 Difference]: Without dead ends: 776 [2020-10-29 16:47:46,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=213, Invalid=1679, Unknown=0, NotChecked=0, Total=1892 [2020-10-29 16:47:46,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-10-29 16:47:47,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 661. [2020-10-29 16:47:47,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2020-10-29 16:47:47,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 823 transitions. [2020-10-29 16:47:47,075 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 823 transitions. Word has length 113 [2020-10-29 16:47:47,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 16:47:47,076 INFO L481 AbstractCegarLoop]: Abstraction has 661 states and 823 transitions. [2020-10-29 16:47:47,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 16:47:47,076 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 823 transitions. [2020-10-29 16:47:47,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-29 16:47:47,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 16:47:47,083 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 16:47:47,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 16:47:47,083 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 16:47:47,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 16:47:47,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1187235008, now seen corresponding path program 1 times [2020-10-29 16:47:47,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 16:47:47,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411872138] [2020-10-29 16:47:47,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 16:47:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:47,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:47,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:47,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:48,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:50,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:50,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-29 16:47:50,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 16:47:50,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3204 [2020-10-29 16:47:50,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:50,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:50,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:50,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 16:47:50,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 16:47:50,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:50,838 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-29 16:47:50,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:47:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:50,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:50,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:50,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:50,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:50,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 16:47:50,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:50,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:50,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:50,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:50,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:50,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:50,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 16:47:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:50,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:50,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:50,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:47:50,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:50,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 16:47:50,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:50,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:50,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:50,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:50,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:50,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:50,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 16:47:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:50,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:50,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:50,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 16:47:50,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:50,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 16:47:50,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:50,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:50,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:50,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:50,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:50,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 16:47:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:50,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:51,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:51,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-29 16:47:51,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:51,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 16:47:51,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:51,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:51,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:51,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-29 16:47:51,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:51,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:51,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:51,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:51,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:51,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 16:47:51,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:51,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 16:47:51,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:51,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:51,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:51,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:51,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:51,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:51,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:51,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:51,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:51,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 16:47:51,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:51,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 16:47:51,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:51,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:51,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:51,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:51,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:51,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:51,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:51,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 16:47:51,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:51,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 16:47:51,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:51,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:51,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:51,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:51,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 16:47:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:51,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:51,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:51,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:47:51,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:51,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 16:47:51,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:51,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:51,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:51,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:51,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:51,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:51,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 16:47:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:51,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:51,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:51,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 16:47:51,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:51,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 16:47:51,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:51,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:51,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:51,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:51,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:51,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:51,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 16:47:51,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:51,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 16:47:51,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:51,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:51,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:51,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:51,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:51,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:51,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 16:47:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:51,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:51,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:51,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:51,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:51,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 16:47:51,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:51,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:51,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:51,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:51,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:51,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:51,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 16:47:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:51,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:51,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:51,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 16:47:51,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:51,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 16:47:51,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:51,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:51,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:51,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-29 16:47:51,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:51,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:51,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:51,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:51,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:51,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 16:47:51,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:51,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 16:47:51,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:51,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:51,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:51,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:51,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:51,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:51,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:51,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:51,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:51,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:51,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:51,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 16:47:51,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:51,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:51,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:51,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:51,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 16:47:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:51,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:51,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:51,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 16:47:51,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:51,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 16:47:51,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:51,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:51,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:51,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:51,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:51,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:51,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:51,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:51,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:51,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:47:51,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:51,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 16:47:51,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:51,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:51,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:51,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:51,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:51,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 16:47:51,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411872138] [2020-10-29 16:47:51,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 16:47:51,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 16:47:51,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346597861] [2020-10-29 16:47:51,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 16:47:51,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 16:47:51,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 16:47:51,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-29 16:47:51,396 INFO L87 Difference]: Start difference. First operand 661 states and 823 transitions. Second operand 10 states. [2020-10-29 16:47:51,890 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-29 16:47:52,484 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-29 16:47:53,072 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-29 16:47:55,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 16:47:55,473 INFO L93 Difference]: Finished difference Result 1578 states and 2025 transitions. [2020-10-29 16:47:55,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 16:47:55,476 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 113 [2020-10-29 16:47:55,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 16:47:55,482 INFO L225 Difference]: With dead ends: 1578 [2020-10-29 16:47:55,482 INFO L226 Difference]: Without dead ends: 929 [2020-10-29 16:47:55,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-10-29 16:47:55,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2020-10-29 16:47:55,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 733. [2020-10-29 16:47:55,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-10-29 16:47:55,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 923 transitions. [2020-10-29 16:47:55,610 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 923 transitions. Word has length 113 [2020-10-29 16:47:55,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 16:47:55,610 INFO L481 AbstractCegarLoop]: Abstraction has 733 states and 923 transitions. [2020-10-29 16:47:55,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 16:47:55,610 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 923 transitions. [2020-10-29 16:47:55,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-29 16:47:55,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 16:47:55,614 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-29 16:47:55,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 16:47:55,614 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 16:47:55,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 16:47:55,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1098902952, now seen corresponding path program 1 times [2020-10-29 16:47:55,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 16:47:55,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198265778] [2020-10-29 16:47:55,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 16:47:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:55,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:55,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:57,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:57,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 16:47:57,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 16:47:57,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1839 [2020-10-29 16:47:57,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:57,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:57,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 16:47:57,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 16:47:57,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 16:47:57,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:58,067 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-29 16:47:58,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:47:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:58,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 16:47:58,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 16:47:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:47:58,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 16:47:58,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 16:47:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 16:47:58,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 16:47:58,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 16:47:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-29 16:47:58,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 16:47:58,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:58,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 16:47:58,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 16:47:58,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 16:47:58,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:58,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 16:47:58,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 16:47:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 16:47:58,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 16:47:58,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:47:58,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 16:47:58,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 16:47:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-29 16:47:58,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 16:47:58,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 16:47:58,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 16:47:58,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 16:47:58,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 16:47:58,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 16:47:58,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 16:47:58,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 16:47:58,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 16:47:58,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 16:47:58,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 16:47:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 16:47:58,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 16:47:58,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 16:47:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 16:47:58,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 16:47:58,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 16:47:58,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 16:47:58,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 16:47:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:58,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 16:47:58,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-29 16:47:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 16:47:58,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 16:47:58,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 16:47:58,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 16:47:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 16:47:58,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 16:47:58,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 16:47:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 16:47:58,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 16:47:58,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 16:47:58,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 16:47:58,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 16:47:58,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 16:47:58,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 16:47:58,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 16:47:58,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 16:47:58,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 16:47:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 16:47:58,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 16:47:58,768 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-29 16:47:58,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198265778] [2020-10-29 16:47:58,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 16:47:58,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 16:47:58,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507743476] [2020-10-29 16:47:58,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 16:47:58,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 16:47:58,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 16:47:58,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-10-29 16:47:58,773 INFO L87 Difference]: Start difference. First operand 733 states and 923 transitions. Second operand 12 states. [2020-10-29 16:47:59,258 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-29 16:47:59,860 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-29 16:48:00,471 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-29 16:48:03,140 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-29 16:48:04,638 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-29 16:48:06,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 16:48:06,170 INFO L93 Difference]: Finished difference Result 2387 states and 3047 transitions. [2020-10-29 16:48:06,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-29 16:48:06,170 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 132 [2020-10-29 16:48:06,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 16:48:06,183 INFO L225 Difference]: With dead ends: 2387 [2020-10-29 16:48:06,183 INFO L226 Difference]: Without dead ends: 2364 [2020-10-29 16:48:06,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=382, Invalid=1024, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 16:48:06,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2364 states. [2020-10-29 16:48:06,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2364 to 2028. [2020-10-29 16:48:06,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2028 states. [2020-10-29 16:48:06,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2585 transitions. [2020-10-29 16:48:06,531 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2585 transitions. Word has length 132 [2020-10-29 16:48:06,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 16:48:06,532 INFO L481 AbstractCegarLoop]: Abstraction has 2028 states and 2585 transitions. [2020-10-29 16:48:06,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 16:48:06,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2585 transitions. [2020-10-29 16:48:06,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-29 16:48:06,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 16:48:06,538 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-29 16:48:06,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 16:48:06,538 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 16:48:06,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 16:48:06,539 INFO L82 PathProgramCache]: Analyzing trace with hash 824325082, now seen corresponding path program 1 times [2020-10-29 16:48:06,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 16:48:06,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315726544] [2020-10-29 16:48:06,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 16:48:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 16:48:06,640 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 16:48:06,640 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 16:48:06,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 16:48:06,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:48:06 BoogieIcfgContainer [2020-10-29 16:48:06,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 16:48:06,678 INFO L168 Benchmark]: Toolchain (without parser) took 88514.44 ms. Allocated memory was 159.4 MB in the beginning and 823.1 MB in the end (delta: 663.7 MB). Free memory was 129.9 MB in the beginning and 668.5 MB in the end (delta: -538.6 MB). Peak memory consumption was 125.9 MB. Max. memory is 8.0 GB. [2020-10-29 16:48:06,679 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 159.4 MB. Free memory is still 132.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 16:48:06,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1160.10 ms. Allocated memory is still 159.4 MB. Free memory was 129.3 MB in the beginning and 100.5 MB in the end (delta: 28.8 MB). Peak memory consumption was 29.6 MB. Max. memory is 8.0 GB. [2020-10-29 16:48:06,680 INFO L168 Benchmark]: Boogie Preprocessor took 164.08 ms. Allocated memory is still 159.4 MB. Free memory was 100.5 MB in the beginning and 94.7 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-29 16:48:06,680 INFO L168 Benchmark]: RCFGBuilder took 1682.08 ms. Allocated memory was 159.4 MB in the beginning and 205.5 MB in the end (delta: 46.1 MB). Free memory was 94.7 MB in the beginning and 147.8 MB in the end (delta: -53.2 MB). Peak memory consumption was 55.4 MB. Max. memory is 8.0 GB. [2020-10-29 16:48:06,683 INFO L168 Benchmark]: TraceAbstraction took 85489.59 ms. Allocated memory was 205.5 MB in the beginning and 823.1 MB in the end (delta: 617.6 MB). Free memory was 147.3 MB in the beginning and 668.5 MB in the end (delta: -521.2 MB). Peak memory consumption was 96.9 MB. Max. memory is 8.0 GB. [2020-10-29 16:48:06,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 159.4 MB. Free memory is still 132.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1160.10 ms. Allocated memory is still 159.4 MB. Free memory was 129.3 MB in the beginning and 100.5 MB in the end (delta: 28.8 MB). Peak memory consumption was 29.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 164.08 ms. Allocated memory is still 159.4 MB. Free memory was 100.5 MB in the beginning and 94.7 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1682.08 ms. Allocated memory was 159.4 MB in the beginning and 205.5 MB in the end (delta: 46.1 MB). Free memory was 94.7 MB in the beginning and 147.8 MB in the end (delta: -53.2 MB). Peak memory consumption was 55.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 85489.59 ms. Allocated memory was 205.5 MB in the beginning and 823.1 MB in the end (delta: 617.6 MB). Free memory was 147.3 MB in the beginning and 668.5 MB in the end (delta: -521.2 MB). Peak memory consumption was 96.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 3552. Possible FailurePath: [L3405] int ldv_state_variable_1 ; [L3406] int LDV_IN_INTERRUPT = 1; [L3407] int usb_counter ; [L3408] int ref_cnt ; [L3409] int ldv_state_variable_0 ; [L3410] struct usb_interface *go7007_loader_driver_group1 ; [L3416-L3421] struct fw_config fw_configs[6U] = { {6467U, 41552U, "go7007/s2250-1.fw", "go7007/s2250-2.fw"}, {2363U, 40962U, "go7007/px-m402u.fw", (char const *)0}, {2363U, 40964U, "go7007/px-tv402u.fw", (char const *)0}, {3761U, 26214U, "go7007/lr192.fw", (char const *)0}, {3761U, 26216U, "go7007/wis-startrek.fw", (char const *)0}, {0U, 0U, (char const *)0, (char const *)0}}; [L3517-L3531] static struct usb_device_id const go7007_loader_ids[6U] = { {3U, 6467U, 41552U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2363U, 40962U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2363U, 40964U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3761U, 26214U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3761U, 26216U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L3532] struct usb_device_id const __mod_usb_device_table ; [L3533-L3547] static struct usb_driver go7007_loader_driver = {"go7007-loader", & go7007_loader_probe, & go7007_loader_disconnect, 0, 0, 0, 0, 0, 0, (struct usb_device_id const *)(& go7007_loader_ids), {{{{{{0U}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {{0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L3563] int ldv_retval_0 ; [L3564] int ldv_retval_1 ; [L3721] int INTERF_STATE = 0; [L3722] int SERIAL_STATE = 0; [L3723] void *usb_intfdata = 0; [L3724] struct urb *usb_urb = 0; [L3725] struct usb_device *usb_dev = 0; [L3726] int dev_counter = 0; [L3727] int completeFnIntCounter = 0; [L3728] int completeFnBulkCounter = 0; [L3729] void (*completeFnInt)(struct urb * ) ; [L3730] void (*completeFnBulk)(struct urb * ) ; [L3578] struct usb_device_id *ldvarg0 ; [L3579] void *tmp ; [L3580] int tmp___0 ; [L3581] int tmp___1 ; [L3582] int tmp___2 ; [L3584] CALL, EXPR ldv_zalloc(32UL) [L3347] void *p ; [L3348] void *tmp ; [L3349] int tmp___0 ; [L3351] tmp___0 = __VERIFIER_nondet_int() [L3352] COND TRUE tmp___0 != 0 [L3353] return ((void *)0); [L3584] RET, EXPR ldv_zalloc(32UL) [L3584] tmp = ldv_zalloc(32UL) [L3585] ldvarg0 = (struct usb_device_id *)tmp [L3586] FCALL ldv_initialize() [L3587] ldv_state_variable_1 = 0 [L3588] ref_cnt = 0 [L3589] ldv_state_variable_0 = 1 [L3591] tmp___0 = __VERIFIER_nondet_int() [L3593] case 0: [L3623] case 1: [L3624] COND TRUE ldv_state_variable_0 != 0 [L3625] tmp___2 = __VERIFIER_nondet_int() [L3627] case 0: [L3635] case 1: [L3636] COND TRUE ldv_state_variable_0 == 1 [L3637] CALL, EXPR go7007_loader_driver_init() [L3550] int tmp ; [L3552] CALL, EXPR ldv_usb_register_driver_4(& go7007_loader_driver, & __this_module, "go7007_loader") [L3693] ldv_func_ret_type ldv_func_res ; [L3694] int tmp ; [L3696] CALL, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L3972] return __VERIFIER_nondet_int(); [L3696] RET, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L3696] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L3697] ldv_func_res = tmp [L3698] ldv_state_variable_1 = 1 [L3699] usb_counter = 0 [L3700] CALL ldv_usb_driver_1() [L3569] void *tmp ; [L3571] CALL, EXPR ldv_zalloc(1520UL) [L3347] void *p ; [L3348] void *tmp ; [L3349] int tmp___0 ; [L3351] tmp___0 = __VERIFIER_nondet_int() [L3352] COND TRUE tmp___0 != 0 [L3353] return ((void *)0); [L3571] RET, EXPR ldv_zalloc(1520UL) [L3571] tmp = ldv_zalloc(1520UL) [L3572] go7007_loader_driver_group1 = (struct usb_interface *)tmp [L3700] RET ldv_usb_driver_1() [L3701] return (ldv_func_res); [L3552] RET, EXPR ldv_usb_register_driver_4(& go7007_loader_driver, & __this_module, "go7007_loader") [L3552] tmp = ldv_usb_register_driver_4(& go7007_loader_driver, & __this_module, "go7007_loader") [L3553] return (tmp); [L3637] RET, EXPR go7007_loader_driver_init() [L3637] ldv_retval_1 = go7007_loader_driver_init() [L3638] COND TRUE ldv_retval_1 == 0 [L3639] ldv_state_variable_0 = 3 [L3642] COND FALSE !(ldv_retval_1 != 0) [L3591] tmp___0 = __VERIFIER_nondet_int() [L3593] case 0: [L3594] COND TRUE ldv_state_variable_1 != 0 [L3595] tmp___1 = __VERIFIER_nondet_int() [L3597] case 0: [L3598] COND TRUE ldv_state_variable_1 == 1 [L3599] CALL, EXPR go7007_loader_probe(go7007_loader_driver_group1, (struct usb_device_id const *)ldvarg0) [L3424] struct usb_device *usbdev ; [L3425] struct firmware const *fw ; [L3426] u16 vendor ; [L3427] u16 product ; [L3428] char const *fw1 ; [L3429] char const *fw2 ; [L3430] int ret ; [L3431] int i ; [L3432] struct usb_device *tmp ; [L3433] int tmp___0 ; [L3434] int tmp___1 ; [L3436] CALL, EXPR interface_to_usbdev(interface) [L3669] struct usb_device *tmp ; [L3671] CALL, EXPR ldv_interface_to_usbdev() [L3816] void *result ; [L3817] void *tmp ; [L3819] CALL, EXPR ldv_malloc(sizeof(struct usb_device)) [L3330] void *p ; [L3331] void *tmp ; [L3332] int tmp___0 ; [L3334] tmp___0 = __VERIFIER_nondet_int() [L3335] COND FALSE !(tmp___0 != 0) [L3338] tmp = malloc(size) [L3339] p = tmp [L3340] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L3326] COND FALSE !(!cond) [L3340] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L3341] return (p); [L3819] RET, EXPR ldv_malloc(sizeof(struct usb_device)) [L3819] tmp = ldv_malloc(sizeof(struct usb_device)) [L3820] result = tmp [L3821] COND TRUE (unsigned long )result != (unsigned long )((void *)0) [L3825] return (result); [L3671] RET, EXPR ldv_interface_to_usbdev() [L3671] tmp = ldv_interface_to_usbdev() [L3672] return (tmp); [L3436] RET, EXPR interface_to_usbdev(interface) [L3436] tmp = interface_to_usbdev(interface) [L3437] CALL, EXPR ldv_usb_get_dev_2(tmp) [L3677] struct usb_device *tmp ; [L3679] CALL, EXPR ldv_get_dev(ldv_func_arg1) [L3830] int tmp ; [L3832] COND TRUE (unsigned long )usb_dev == (unsigned long )((struct usb_device *)0) [L3833] CALL, EXPR ldv_undef_int() [L3364] int tmp ; [L3366] tmp = __VERIFIER_nondet_int() [L3367] return (tmp); [L3833] RET, EXPR ldv_undef_int() [L3833] tmp = ldv_undef_int() [L3834] COND TRUE \read(tmp) [L3835] dev_counter = dev_counter + 1 [L3836] usb_dev = data [L3844] return (usb_dev); [L3679] RET, EXPR ldv_get_dev(ldv_func_arg1) [L3679] tmp = ldv_get_dev(ldv_func_arg1) [L3680] return (tmp); [L3437] RET, EXPR ldv_usb_get_dev_2(tmp) [L3437] usbdev = ldv_usb_get_dev_2(tmp) [L3438] COND FALSE !((unsigned long )usbdev == (unsigned long )((struct usb_device *)0)) [L3442] EXPR usbdev->descriptor.bNumConfigurations [L3442] COND TRUE (unsigned int )usbdev->descriptor.bNumConfigurations != 1U [L3444] return (-19); [L3444] return (-19); [L3599] RET, EXPR go7007_loader_probe(go7007_loader_driver_group1, (struct usb_device_id const *)ldvarg0) [L3599] ldv_retval_0 = go7007_loader_probe(go7007_loader_driver_group1, (struct usb_device_id const *)ldvarg0) [L3600] COND FALSE !(ldv_retval_0 == 0) [L3591] tmp___0 = __VERIFIER_nondet_int() [L3593] case 0: [L3623] case 1: [L3624] COND TRUE ldv_state_variable_0 != 0 [L3625] tmp___2 = __VERIFIER_nondet_int() [L3627] case 0: [L3628] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L3629] CALL go7007_loader_driver_exit() [L3559] CALL ldv_usb_deregister_5(& go7007_loader_driver) [L3707] FCALL usb_deregister(arg) [L3708] ldv_state_variable_1 = 0 [L3559] RET ldv_usb_deregister_5(& go7007_loader_driver) [L3629] RET go7007_loader_driver_exit() [L3630] ldv_state_variable_0 = 2 [L3663] CALL ldv_check_final_state() [L3922] COND TRUE (unsigned long )usb_urb == (unsigned long )((struct urb *)0) [L3926] COND FALSE !((unsigned long )usb_dev == (unsigned long )((struct usb_device *)0)) [L3928] CALL ldv_error() [L3382] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 50 procedures, 300 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 85.3s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 49.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2285 SDtfs, 6512 SDslu, 4893 SDs, 0 SdLazy, 8001 SolverSat, 3235 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 384 GetRequests, 205 SyntacticMatches, 2 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 26.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2028occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1087 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 33.3s InterpolantComputationTime, 796 NumberOfCodeBlocks, 796 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 655 ConstructedInterpolants, 0 QuantifiedInterpolants, 339376 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 27/27 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...