/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 23:14:41,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 23:14:41,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 23:14:41,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 23:14:41,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 23:14:41,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 23:14:41,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 23:14:41,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 23:14:41,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 23:14:41,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 23:14:41,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 23:14:41,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 23:14:41,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 23:14:41,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 23:14:41,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 23:14:41,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 23:14:41,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 23:14:41,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 23:14:41,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 23:14:41,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 23:14:41,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 23:14:41,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 23:14:41,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 23:14:41,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 23:14:41,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 23:14:41,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 23:14:41,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 23:14:41,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 23:14:41,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 23:14:41,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 23:14:41,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 23:14:41,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 23:14:41,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 23:14:41,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 23:14:41,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 23:14:41,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 23:14:41,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 23:14:41,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 23:14:41,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 23:14:41,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 23:14:41,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 23:14:41,268 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-12 23:14:41,291 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 23:14:41,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 23:14:41,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 23:14:41,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 23:14:41,296 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 23:14:41,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 23:14:41,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 23:14:41,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 23:14:41,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 23:14:41,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 23:14:41,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 23:14:41,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 23:14:41,298 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 23:14:41,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 23:14:41,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 23:14:41,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 23:14:41,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 23:14:41,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 23:14:41,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 23:14:41,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 23:14:41,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 23:14:41,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 23:14:41,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 23:14:41,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 23:14:41,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 23:14:41,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 23:14:41,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-12 23:14:41,301 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 23:14:41,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 23:14:41,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 23:14:41,625 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 23:14:41,627 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 23:14:41,628 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 23:14:41,629 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2020-10-12 23:14:41,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb2d474df/fcfe2b9b7f4e49818ae6f89d87cc5a88/FLAGcb997e104 [2020-10-12 23:14:42,436 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 23:14:42,436 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2020-10-12 23:14:42,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb2d474df/fcfe2b9b7f4e49818ae6f89d87cc5a88/FLAGcb997e104 [2020-10-12 23:14:42,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fb2d474df/fcfe2b9b7f4e49818ae6f89d87cc5a88 [2020-10-12 23:14:42,635 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 23:14:42,637 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 23:14:42,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 23:14:42,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 23:14:42,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 23:14:42,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:14:42" (1/1) ... [2020-10-12 23:14:42,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@177c5926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:42, skipping insertion in model container [2020-10-12 23:14:42,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:14:42" (1/1) ... [2020-10-12 23:14:42,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 23:14:42,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 23:14:43,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 23:14:43,813 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 23:14:43,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 23:14:43,990 INFO L208 MainTranslator]: Completed translation [2020-10-12 23:14:43,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:43 WrapperNode [2020-10-12 23:14:43,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 23:14:43,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 23:14:43,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 23:14:43,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 23:14:44,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:43" (1/1) ... [2020-10-12 23:14:44,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:43" (1/1) ... [2020-10-12 23:14:44,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:43" (1/1) ... [2020-10-12 23:14:44,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:43" (1/1) ... [2020-10-12 23:14:44,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:43" (1/1) ... [2020-10-12 23:14:44,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:43" (1/1) ... [2020-10-12 23:14:44,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:43" (1/1) ... [2020-10-12 23:14:44,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 23:14:44,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 23:14:44,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 23:14:44,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 23:14:44,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 23:14:44,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 23:14:44,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 23:14:44,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-12 23:14:44,242 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 23:14:44,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-12 23:14:44,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-12 23:14:44,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-12 23:14:44,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-12 23:14:44,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-12 23:14:44,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-12 23:14:44,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-12 23:14:44,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-12 23:14:44,246 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_probe [2020-10-12 23:14:44,246 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_disconnect [2020-10-12 23:14:44,246 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_driver_init [2020-10-12 23:14:44,247 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_driver_exit [2020-10-12 23:14:44,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-12 23:14:44,249 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 23:14:44,249 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-12 23:14:44,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_2 [2020-10-12 23:14:44,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_3 [2020-10-12 23:14:44,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_4 [2020-10-12 23:14:44,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_5 [2020-10-12 23:14:44,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-12 23:14:44,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-12 23:14:44,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-12 23:14:44,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-12 23:14:44,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-12 23:14:44,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-12 23:14:44,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-12 23:14:44,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-12 23:14:44,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-12 23:14:44,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-12 23:14:44,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-12 23:14:44,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-12 23:14:44,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-12 23:14:44,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-12 23:14:44,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-12 23:14:44,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-12 23:14:44,255 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-12 23:14:44,255 INFO L138 BoogieDeclarations]: Found implementation of procedure cypress_load_firmware [2020-10-12 23:14:44,255 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-12 23:14:44,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-12 23:14:44,255 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2020-10-12 23:14:44,255 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2020-10-12 23:14:44,256 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-12 23:14:44,256 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-12 23:14:44,256 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-12 23:14:44,256 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-12 23:14:44,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 23:14:44,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-12 23:14:44,257 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-12 23:14:44,257 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-12 23:14:44,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_3 [2020-10-12 23:14:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-12 23:14:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_2 [2020-10-12 23:14:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-12 23:14:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_4 [2020-10-12 23:14:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-12 23:14:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_5 [2020-10-12 23:14:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-12 23:14:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-12 23:14:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-12 23:14:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 23:14:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 23:14:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 23:14:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-12 23:14:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 23:14:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 23:14:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-12 23:14:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 23:14:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-12 23:14:44,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-12 23:14:44,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-12 23:14:44,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-12 23:14:44,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-12 23:14:44,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-12 23:14:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-12 23:14:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-12 23:14:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2020-10-12 23:14:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2020-10-12 23:14:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure cypress_load_firmware [2020-10-12 23:14:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 23:14:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_probe [2020-10-12 23:14:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 23:14:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 23:14:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 23:14:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_disconnect [2020-10-12 23:14:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_driver_init [2020-10-12 23:14:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_driver_exit [2020-10-12 23:14:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-12 23:14:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-12 23:14:44,267 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 23:14:44,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-12 23:14:44,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-12 23:14:44,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-12 23:14:44,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-12 23:14:44,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-12 23:14:44,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-12 23:14:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-12 23:14:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-12 23:14:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-12 23:14:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-12 23:14:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-12 23:14:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-12 23:14:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-12 23:14:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 23:14:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-12 23:14:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 23:14:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 23:14:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 23:14:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 23:14:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 23:14:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 23:14:44,950 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-12 23:14:45,427 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-12 23:14:45,470 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 23:14:45,470 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 23:14:45,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:14:45 BoogieIcfgContainer [2020-10-12 23:14:45,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 23:14:45,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 23:14:45,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 23:14:45,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 23:14:45,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:14:42" (1/3) ... [2020-10-12 23:14:45,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b9f367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:14:45, skipping insertion in model container [2020-10-12 23:14:45,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:14:43" (2/3) ... [2020-10-12 23:14:45,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b9f367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:14:45, skipping insertion in model container [2020-10-12 23:14:45,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:14:45" (3/3) ... [2020-10-12 23:14:45,484 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2020-10-12 23:14:45,495 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 23:14:45,503 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 23:14:45,517 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 23:14:45,543 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 23:14:45,543 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 23:14:45,544 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 23:14:45,544 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 23:14:45,544 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 23:14:45,544 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 23:14:45,544 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 23:14:45,544 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 23:14:45,570 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-10-12 23:14:45,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-12 23:14:45,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:14:45,580 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] [2020-10-12 23:14:45,581 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:14:45,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:14:45,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1549851085, now seen corresponding path program 1 times [2020-10-12 23:14:45,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:14:45,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713189857] [2020-10-12 23:14:45,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:14:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:46,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:46,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:46,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:46,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 23:14:46,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:14:46,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 769 [2020-10-12 23:14:46,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:46,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:46,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:14:46,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-12 23:14:46,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 23:14:47,398 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 23:14:47,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:14:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:47,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:47,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:47,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:47,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:47,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-12 23:14:47,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:47,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:47,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:47,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:14:47,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:47,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:14:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:47,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:47,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:47,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:47,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:47,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 23:14:47,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:47,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:47,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:47,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:14:47,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:47,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:14:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:47,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:47,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:47,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:14:47,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:47,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:14:47,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:47,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:47,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:47,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:14:47,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:47,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 23:14:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:47,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:47,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:47,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 23:14:47,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:47,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 23:14:47,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:47,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:47,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:47,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 23:14:47,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:47,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:14:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:47,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:47,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:47,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:14:47,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:47,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:14:47,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:47,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:47,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:47,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:47,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:47,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:14:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:47,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:47,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:47,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:47,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:47,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:14:47,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:47,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:47,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:47,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:47,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:47,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 23:14:47,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713189857] [2020-10-12 23:14:47,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:14:47,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 23:14:47,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155275269] [2020-10-12 23:14:47,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 23:14:47,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:14:47,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 23:14:47,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 23:14:47,936 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 6 states. [2020-10-12 23:14:48,329 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 23:14:48,794 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 23:14:49,204 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 23:14:50,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:14:50,526 INFO L93 Difference]: Finished difference Result 466 states and 604 transitions. [2020-10-12 23:14:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 23:14:50,530 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-12 23:14:50,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:14:50,556 INFO L225 Difference]: With dead ends: 466 [2020-10-12 23:14:50,556 INFO L226 Difference]: Without dead ends: 248 [2020-10-12 23:14:50,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-12 23:14:50,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-10-12 23:14:50,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 189. [2020-10-12 23:14:50,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-12 23:14:50,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 227 transitions. [2020-10-12 23:14:50,660 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 227 transitions. Word has length 39 [2020-10-12 23:14:50,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:14:50,661 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 227 transitions. [2020-10-12 23:14:50,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 23:14:50,661 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 227 transitions. [2020-10-12 23:14:50,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-12 23:14:50,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:14:50,665 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] [2020-10-12 23:14:50,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 23:14:50,665 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:14:50,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:14:50,666 INFO L82 PathProgramCache]: Analyzing trace with hash 800558865, now seen corresponding path program 1 times [2020-10-12 23:14:50,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:14:50,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072067511] [2020-10-12 23:14:50,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:14:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:50,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:50,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:51,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:51,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-12 23:14:51,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:14:51,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 798 [2020-10-12 23:14:51,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:51,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:14:51,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:14:51,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 23:14:51,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:52,023 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 23:14:52,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:14:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:52,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:52,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:52,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:52,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:52,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-12 23:14:52,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:52,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:14:52,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:52,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:14:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:52,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:52,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:52,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:52,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:52,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:14:52,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:52,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:14:52,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:52,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:14:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:52,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:52,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:52,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:14:52,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:52,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:14:52,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:14:52,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:52,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 23:14:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:52,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:52,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:52,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 23:14:52,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:52,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 23:14:52,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:52,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:52,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:52,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 23:14:52,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:52,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:14:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:52,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:52,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:52,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:14:52,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:52,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:14:52,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:52,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:52,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:52,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:52,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:14:52,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:14:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:52,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:52,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:52,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:52,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:52,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 23:14:52,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:52,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:52,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:52,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:52,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:52,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 23:14:52,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072067511] [2020-10-12 23:14:52,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:14:52,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 23:14:52,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821939519] [2020-10-12 23:14:52,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 23:14:52,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:14:52,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 23:14:52,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 23:14:52,323 INFO L87 Difference]: Start difference. First operand 189 states and 227 transitions. Second operand 6 states. [2020-10-12 23:14:52,677 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 23:14:53,100 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 23:14:53,552 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 23:14:56,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:14:56,222 INFO L93 Difference]: Finished difference Result 621 states and 761 transitions. [2020-10-12 23:14:56,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 23:14:56,222 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-10-12 23:14:56,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:14:56,228 INFO L225 Difference]: With dead ends: 621 [2020-10-12 23:14:56,228 INFO L226 Difference]: Without dead ends: 444 [2020-10-12 23:14:56,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-12 23:14:56,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2020-10-12 23:14:56,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 362. [2020-10-12 23:14:56,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-10-12 23:14:56,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 436 transitions. [2020-10-12 23:14:56,318 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 436 transitions. Word has length 40 [2020-10-12 23:14:56,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:14:56,319 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 436 transitions. [2020-10-12 23:14:56,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 23:14:56,319 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 436 transitions. [2020-10-12 23:14:56,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 23:14:56,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:14:56,322 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] [2020-10-12 23:14:56,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 23:14:56,322 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:14:56,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:14:56,323 INFO L82 PathProgramCache]: Analyzing trace with hash -952658608, now seen corresponding path program 1 times [2020-10-12 23:14:56,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:14:56,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761202384] [2020-10-12 23:14:56,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:14:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:56,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:56,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:57,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:57,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-12 23:14:57,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:14:57,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 813 [2020-10-12 23:14:57,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:57,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:14:57,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:14:57,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 23:14:57,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:57,529 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 23:14:57,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:14:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:57,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:57,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:57,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:57,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:57,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-12 23:14:57,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:14:57,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:57,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:14:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:57,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:57,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:57,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:57,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:57,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:14:57,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:57,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:57,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:57,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:14:57,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:57,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:14:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:57,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:57,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:57,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:14:57,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:57,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:14:57,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:57,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:14:57,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:57,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 23:14:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:57,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:57,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:57,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 23:14:57,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:57,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 23:14:57,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 23:14:57,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:57,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:14:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:57,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:57,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:57,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:14:57,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:57,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:14:57,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:57,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:57,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:14:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:57,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:57,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:57,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:57,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:57,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:14:57,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:57,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:57,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:57,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:57,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:57,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 23:14:57,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761202384] [2020-10-12 23:14:57,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:14:57,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 23:14:57,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621082015] [2020-10-12 23:14:57,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 23:14:57,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:14:57,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 23:14:57,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 23:14:57,827 INFO L87 Difference]: Start difference. First operand 362 states and 436 transitions. Second operand 6 states. [2020-10-12 23:14:58,133 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 23:14:58,545 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 23:14:58,870 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 23:15:00,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:15:00,969 INFO L93 Difference]: Finished difference Result 442 states and 537 transitions. [2020-10-12 23:15:00,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 23:15:00,970 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-10-12 23:15:00,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:15:00,974 INFO L225 Difference]: With dead ends: 442 [2020-10-12 23:15:00,974 INFO L226 Difference]: Without dead ends: 439 [2020-10-12 23:15:00,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-12 23:15:00,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-10-12 23:15:01,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 363. [2020-10-12 23:15:01,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-10-12 23:15:01,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 437 transitions. [2020-10-12 23:15:01,045 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 437 transitions. Word has length 41 [2020-10-12 23:15:01,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:15:01,045 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 437 transitions. [2020-10-12 23:15:01,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 23:15:01,046 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 437 transitions. [2020-10-12 23:15:01,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-12 23:15:01,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:15:01,047 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] [2020-10-12 23:15:01,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 23:15:01,048 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:15:01,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:15:01,048 INFO L82 PathProgramCache]: Analyzing trace with hash 532179444, now seen corresponding path program 1 times [2020-10-12 23:15:01,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:15:01,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695615783] [2020-10-12 23:15:01,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:15:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:01,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:01,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:01,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:01,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-12 23:15:01,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:15:01,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-10-12 23:15:01,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:01,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:01,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:15:01,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 23:15:01,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:01,815 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 23:15:01,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:15:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:01,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:01,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:01,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:01,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:01,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 23:15:01,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:01,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:01,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:01,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:15:01,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:01,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:15:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:01,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:01,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:01,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:01,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:01,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:15:01,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:01,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:01,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:01,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:15:01,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:02,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:15:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:02,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:02,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:02,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:15:02,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:02,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:15:02,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:02,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:02,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:02,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:15:02,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:02,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 23:15:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:02,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:02,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:02,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 23:15:02,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:02,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:15:02,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:02,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:02,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:02,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 23:15:02,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:02,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:15:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:02,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:02,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:02,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:15:02,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:02,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:15:02,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:02,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:02,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:02,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:02,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:02,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:02,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:02,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:02,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:02,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:02,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 23:15:02,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:02,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:02,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:02,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:02,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:02,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 23:15:02,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1695615783] [2020-10-12 23:15:02,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:15:02,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 23:15:02,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390798257] [2020-10-12 23:15:02,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 23:15:02,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:15:02,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 23:15:02,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 23:15:02,076 INFO L87 Difference]: Start difference. First operand 363 states and 437 transitions. Second operand 6 states. [2020-10-12 23:15:02,439 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 23:15:02,844 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 23:15:03,216 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 23:15:04,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:15:04,583 INFO L93 Difference]: Finished difference Result 439 states and 534 transitions. [2020-10-12 23:15:04,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 23:15:04,584 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-10-12 23:15:04,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:15:04,589 INFO L225 Difference]: With dead ends: 439 [2020-10-12 23:15:04,589 INFO L226 Difference]: Without dead ends: 436 [2020-10-12 23:15:04,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-12 23:15:04,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-10-12 23:15:04,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 362. [2020-10-12 23:15:04,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-10-12 23:15:04,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 435 transitions. [2020-10-12 23:15:04,684 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 435 transitions. Word has length 42 [2020-10-12 23:15:04,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:15:04,684 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 435 transitions. [2020-10-12 23:15:04,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 23:15:04,685 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 435 transitions. [2020-10-12 23:15:04,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-12 23:15:04,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:15:04,687 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] [2020-10-12 23:15:04,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 23:15:04,687 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:15:04,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:15:04,688 INFO L82 PathProgramCache]: Analyzing trace with hash -682476333, now seen corresponding path program 1 times [2020-10-12 23:15:04,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:15:04,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114449128] [2020-10-12 23:15:04,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:15:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:04,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:04,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:05,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:05,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 23:15:05,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:15:05,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-12 23:15:05,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:05,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:05,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 23:15:05,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 23:15:05,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:05,453 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 23:15:05,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:15:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:05,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:05,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:05,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:05,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:05,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 23:15:05,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:05,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:05,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:05,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:05,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:05,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:15:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:05,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:05,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:05,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:05,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:05,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:15:05,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:05,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:05,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:05,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:15:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:05,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:05,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:05,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:15:05,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:05,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 23:15:05,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:05,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:05,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:05,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:05,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:05,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 23:15:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:05,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:05,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:05,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 23:15:05,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:05,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:15:05,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:05,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:05,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 23:15:05,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:05,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:05,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:15:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:05,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:05,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:05,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:15:05,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:05,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:15:05,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:05,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:05,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:05,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:05,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:05,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:05,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:05,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 23:15:05,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:05,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:05,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:05,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:05,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:05,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 23:15:05,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114449128] [2020-10-12 23:15:05,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:15:05,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 23:15:05,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63131648] [2020-10-12 23:15:05,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 23:15:05,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:15:05,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 23:15:05,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 23:15:05,628 INFO L87 Difference]: Start difference. First operand 362 states and 435 transitions. Second operand 6 states. [2020-10-12 23:15:05,911 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 23:15:06,322 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 23:15:06,739 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 23:15:08,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:15:08,757 INFO L93 Difference]: Finished difference Result 761 states and 938 transitions. [2020-10-12 23:15:08,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 23:15:08,760 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-10-12 23:15:08,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:15:08,766 INFO L225 Difference]: With dead ends: 761 [2020-10-12 23:15:08,766 INFO L226 Difference]: Without dead ends: 720 [2020-10-12 23:15:08,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-12 23:15:08,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-10-12 23:15:08,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 603. [2020-10-12 23:15:08,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-10-12 23:15:08,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 739 transitions. [2020-10-12 23:15:08,859 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 739 transitions. Word has length 43 [2020-10-12 23:15:08,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:15:08,860 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 739 transitions. [2020-10-12 23:15:08,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 23:15:08,860 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 739 transitions. [2020-10-12 23:15:08,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-12 23:15:08,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:15:08,862 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 23:15:08,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 23:15:08,862 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:15:08,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:15:08,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1904942544, now seen corresponding path program 1 times [2020-10-12 23:15:08,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:15:08,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1018667438] [2020-10-12 23:15:08,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:15:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:08,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:09,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 23:15:09,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:09,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-12 23:15:09,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:09,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:15:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 23:15:09,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:09,542 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 23:15:09,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:15:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:09,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:09,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:09,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:09,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-12 23:15:09,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:09,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:15:09,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:09,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:15:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:09,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:09,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:09,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:09,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:15:09,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:09,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:09,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:09,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:15:09,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:09,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:15:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:09,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:09,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:15:09,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:09,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 23:15:09,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:09,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:09,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:09,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:15:09,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:09,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 23:15:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:09,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:09,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 23:15:09,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:09,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 23:15:09,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:09,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:09,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:09,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 23:15:09,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:09,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:09,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:09,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 23:15:09,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:09,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 23:15:09,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:09,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:09,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:09,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:09,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:09,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:09,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:15:09,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:09,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:09,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:09,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:09,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:09,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:15:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:09,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:09,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:15:09,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:09,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:15:09,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:09,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:09,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:09,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:09,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:09,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:09,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:09,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:09,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:09,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:09,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:15:09,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:09,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:09,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:09,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:09,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 23:15:09,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1018667438] [2020-10-12 23:15:09,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:15:09,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 23:15:09,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488029705] [2020-10-12 23:15:09,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 23:15:09,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:15:09,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 23:15:09,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 23:15:09,923 INFO L87 Difference]: Start difference. First operand 603 states and 739 transitions. Second operand 7 states. [2020-10-12 23:15:10,220 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 23:15:10,608 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 23:15:10,956 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 23:15:12,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:15:12,356 INFO L93 Difference]: Finished difference Result 745 states and 933 transitions. [2020-10-12 23:15:12,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 23:15:12,357 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2020-10-12 23:15:12,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:15:12,362 INFO L225 Difference]: With dead ends: 745 [2020-10-12 23:15:12,362 INFO L226 Difference]: Without dead ends: 720 [2020-10-12 23:15:12,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-12 23:15:12,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-10-12 23:15:12,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 583. [2020-10-12 23:15:12,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-10-12 23:15:12,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 715 transitions. [2020-10-12 23:15:12,432 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 715 transitions. Word has length 59 [2020-10-12 23:15:12,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:15:12,432 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 715 transitions. [2020-10-12 23:15:12,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 23:15:12,432 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 715 transitions. [2020-10-12 23:15:12,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-12 23:15:12,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:15:12,435 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] [2020-10-12 23:15:12,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 23:15:12,436 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:15:12,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:15:12,436 INFO L82 PathProgramCache]: Analyzing trace with hash 840875240, now seen corresponding path program 1 times [2020-10-12 23:15:12,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:15:12,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593092855] [2020-10-12 23:15:12,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:15:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:12,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:12,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:12,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:12,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:17,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:17,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 23:15:17,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 23:15:17,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-12 23:15:17,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:17,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 23:15:17,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-12 23:15:17,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 23:15:17,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:17,879 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 23:15:17,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:15:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:17,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:17,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:17,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:17,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:17,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 23:15:17,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:17,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:17,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:17,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:17,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:17,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:15:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:17,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:17,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:17,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:17,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:17,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:15:17,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:17,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:17,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:17,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:17,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:17,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:15:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:17,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:17,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:17,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:15:17,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:17,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 23:15:17,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:17,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:17,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:17,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:17,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:18,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 23:15:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:18,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:18,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:18,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:18,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 23:15:18,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:15:18,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 792 [2020-10-12 23:15:18,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:18,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 23:15:18,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 23:15:18,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 23:15:18,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:18,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:18,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:18,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:19,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:19,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 23:15:19,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:15:19,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-12 23:15:19,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:19,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 23:15:19,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:19,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 23:15:19,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:19,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:19,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:19,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:19,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:19,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 23:15:19,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:15:19,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-12 23:15:19,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:19,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:15:19,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 23:15:19,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 23:15:19,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:19,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:19,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:19,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:19,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:19,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:19,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 23:15:19,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:19,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 23:15:19,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:19,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 23:15:19,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:19,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 23:15:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:19,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:19,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:19,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 23:15:19,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:19,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-12 23:15:19,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:19,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 23:15:19,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:19,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 23:15:19,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:19,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:19,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:19,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:19,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 23:15:19,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:19,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-12 23:15:19,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 23:15:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 23:15:19,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:20,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 23:15:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:20,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:20,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:20,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:20,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:20,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:15:20,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:20,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:20,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:20,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 23:15:20,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:20,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-12 23:15:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:20,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:20,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:20,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 23:15:20,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:20,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 23:15:20,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:20,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:20,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 23:15:20,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:20,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:20,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:20,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:20,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:20,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 23:15:20,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:20,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 23:15:20,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:20,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:20,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:20,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:20,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:20,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:20,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:20,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:15:20,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:20,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:20,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:20,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:20,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:20,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:15:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:20,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:20,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:20,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:15:20,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:20,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:15:20,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:20,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:20,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:20,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:20,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:20,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:20,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:20,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:20,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:20,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:20,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:15:20,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:20,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:20,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:20,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:20,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:20,325 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 23:15:20,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593092855] [2020-10-12 23:15:20,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:15:20,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-10-12 23:15:20,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695589847] [2020-10-12 23:15:20,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-12 23:15:20,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:15:20,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-12 23:15:20,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2020-10-12 23:15:20,328 INFO L87 Difference]: Start difference. First operand 583 states and 715 transitions. Second operand 24 states. [2020-10-12 23:15:20,659 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 23:15:22,328 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-12 23:15:22,818 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-12 23:15:23,228 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-12 23:15:23,920 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-12 23:15:24,297 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-12 23:15:26,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:15:26,565 INFO L93 Difference]: Finished difference Result 1357 states and 1731 transitions. [2020-10-12 23:15:26,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 23:15:26,571 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 105 [2020-10-12 23:15:26,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:15:26,576 INFO L225 Difference]: With dead ends: 1357 [2020-10-12 23:15:26,576 INFO L226 Difference]: Without dead ends: 770 [2020-10-12 23:15:26,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=220, Invalid=1340, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 23:15:26,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2020-10-12 23:15:26,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 655. [2020-10-12 23:15:26,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2020-10-12 23:15:26,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 817 transitions. [2020-10-12 23:15:26,688 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 817 transitions. Word has length 105 [2020-10-12 23:15:26,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:15:26,689 INFO L479 AbstractCegarLoop]: Abstraction has 655 states and 817 transitions. [2020-10-12 23:15:26,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-12 23:15:26,689 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 817 transitions. [2020-10-12 23:15:26,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-12 23:15:26,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:15:26,693 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] [2020-10-12 23:15:26,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 23:15:26,693 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:15:26,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:15:26,694 INFO L82 PathProgramCache]: Analyzing trace with hash -684294105, now seen corresponding path program 1 times [2020-10-12 23:15:26,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:15:26,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174889871] [2020-10-12 23:15:26,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:15:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:26,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:26,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:26,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:27,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:31,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:31,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 23:15:31,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 23:15:31,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-12 23:15:31,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 23:15:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-12 23:15:31,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 23:15:31,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:32,125 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 23:15:32,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:15:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:32,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:32,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:32,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:32,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:32,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 23:15:32,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:32,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:32,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:32,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:32,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:32,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:15:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:32,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:32,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:32,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:32,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:32,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 23:15:32,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:32,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:32,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:32,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:32,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:32,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:15:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:32,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:32,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:32,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:15:32,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:32,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 23:15:32,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:32,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:32,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 23:15:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:32,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:32,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:32,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:32,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-12 23:15:32,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:15:32,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-10-12 23:15:32,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:32,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 23:15:32,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 23:15:32,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 23:15:32,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:32,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:32,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:32,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:33,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:33,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 23:15:33,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:15:33,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-12 23:15:33,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:33,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 23:15:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 23:15:33,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:33,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:33,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:33,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:33,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:33,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 23:15:33,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:15:33,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-12 23:15:33,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:33,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 23:15:33,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:33,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 23:15:33,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:33,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:33,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:33,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:33,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 23:15:33,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:33,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 23:15:33,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:33,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 23:15:33,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:33,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 23:15:33,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:33,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 23:15:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:33,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:33,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:33,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:33,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:33,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:15:33,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:33,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:15:33,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:33,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 23:15:33,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:33,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 23:15:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:33,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:33,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:33,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 23:15:33,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:33,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 23:15:33,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:33,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 23:15:33,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:33,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 23:15:33,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:33,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:33,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:33,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:33,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 23:15:33,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:33,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 23:15:33,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:33,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 23:15:33,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:33,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 23:15:33,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:34,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 23:15:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:34,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:34,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:34,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:34,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:34,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:15:34,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:34,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:34,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:34,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 23:15:34,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:34,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 23:15:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:34,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:34,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:34,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 23:15:34,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:34,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 23:15:34,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:34,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 23:15:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:34,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:34,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:34,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:34,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:34,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 23:15:34,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:34,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 23:15:34,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:34,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:34,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:34,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:34,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:34,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:34,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:34,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:34,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:34,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:34,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 23:15:34,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:34,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:34,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:34,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:34,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:34,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:15:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:34,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:34,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:34,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:15:34,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:34,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:15:34,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:34,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:34,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:34,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:34,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:34,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:34,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:34,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:34,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:34,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 23:15:34,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:34,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:34,346 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 23:15:34,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174889871] [2020-10-12 23:15:34,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:15:34,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-10-12 23:15:34,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237432727] [2020-10-12 23:15:34,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-12 23:15:34,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:15:34,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-12 23:15:34,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=692, Unknown=0, NotChecked=0, Total=756 [2020-10-12 23:15:34,349 INFO L87 Difference]: Start difference. First operand 655 states and 817 transitions. Second operand 28 states. [2020-10-12 23:15:34,869 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 23:15:36,746 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-12 23:15:37,151 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 23:15:38,899 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-12 23:15:39,302 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-12 23:15:41,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:15:41,687 INFO L93 Difference]: Finished difference Result 1149 states and 1470 transitions. [2020-10-12 23:15:41,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-12 23:15:41,689 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 111 [2020-10-12 23:15:41,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:15:41,694 INFO L225 Difference]: With dead ends: 1149 [2020-10-12 23:15:41,694 INFO L226 Difference]: Without dead ends: 774 [2020-10-12 23:15:41,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=267, Invalid=2595, Unknown=0, NotChecked=0, Total=2862 [2020-10-12 23:15:41,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2020-10-12 23:15:41,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 659. [2020-10-12 23:15:41,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-10-12 23:15:41,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 821 transitions. [2020-10-12 23:15:41,771 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 821 transitions. Word has length 111 [2020-10-12 23:15:41,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:15:41,771 INFO L479 AbstractCegarLoop]: Abstraction has 659 states and 821 transitions. [2020-10-12 23:15:41,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-12 23:15:41,771 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 821 transitions. [2020-10-12 23:15:41,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-12 23:15:41,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:15:41,774 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] [2020-10-12 23:15:41,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 23:15:41,774 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:15:41,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:15:41,775 INFO L82 PathProgramCache]: Analyzing trace with hash 122960036, now seen corresponding path program 1 times [2020-10-12 23:15:41,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:15:41,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432515742] [2020-10-12 23:15:41,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:15:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:41,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:41,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:42,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:42,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-12 23:15:42,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:15:42,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 745 [2020-10-12 23:15:42,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:42,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:42,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 23:15:42,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:15:42,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:43,082 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-12 23:15:43,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:15:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:43,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 23:15:43,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:43,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:43,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:15:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:43,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:15:43,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:43,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:43,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:15:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:15:43,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:15:43,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:43,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:43,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-12 23:15:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-12 23:15:43,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 23:15:43,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-12 23:15:43,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:43,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 23:15:43,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 23:15:43,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:43,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 23:15:43,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 23:15:43,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:43,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:43,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 23:15:43,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:15:43,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:43,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:43,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 23:15:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:43,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 23:15:43,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:43,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:43,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 23:15:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-12 23:15:43,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 23:15:43,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:43,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 23:15:43,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 23:15:43,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:43,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:43,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 23:15:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:43,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 23:15:43,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:43,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:43,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 23:15:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 23:15:43,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 23:15:43,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 23:15:43,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:43,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-12 23:15:43,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 23:15:43,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:43,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:43,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:43,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 23:15:43,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:43,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:43,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:15:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 23:15:43,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:15:43,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:43,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:43,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:43,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:43,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:43,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:43,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 23:15:43,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:43,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:43,765 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 23:15:43,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432515742] [2020-10-12 23:15:43,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:15:43,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 23:15:43,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080648080] [2020-10-12 23:15:43,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 23:15:43,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:15:43,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 23:15:43,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-12 23:15:43,767 INFO L87 Difference]: Start difference. First operand 659 states and 821 transitions. Second operand 10 states. [2020-10-12 23:15:44,095 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-12 23:15:44,553 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-12 23:15:44,958 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-12 23:15:47,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:15:47,339 INFO L93 Difference]: Finished difference Result 1534 states and 1951 transitions. [2020-10-12 23:15:47,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 23:15:47,340 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 111 [2020-10-12 23:15:47,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:15:47,345 INFO L225 Difference]: With dead ends: 1534 [2020-10-12 23:15:47,345 INFO L226 Difference]: Without dead ends: 887 [2020-10-12 23:15:47,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-10-12 23:15:47,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-10-12 23:15:47,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 713. [2020-10-12 23:15:47,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-10-12 23:15:47,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 894 transitions. [2020-10-12 23:15:47,439 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 894 transitions. Word has length 111 [2020-10-12 23:15:47,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:15:47,439 INFO L479 AbstractCegarLoop]: Abstraction has 713 states and 894 transitions. [2020-10-12 23:15:47,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 23:15:47,440 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 894 transitions. [2020-10-12 23:15:47,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-12 23:15:47,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:15:47,443 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] [2020-10-12 23:15:47,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 23:15:47,443 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:15:47,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:15:47,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1412874651, now seen corresponding path program 1 times [2020-10-12 23:15:47,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:15:47,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475991661] [2020-10-12 23:15:47,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:15:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 23:15:47,533 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 23:15:47,533 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 23:15:47,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 23:15:47,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:15:47 BoogieIcfgContainer [2020-10-12 23:15:47,588 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 23:15:47,590 INFO L168 Benchmark]: Toolchain (without parser) took 64952.81 ms. Allocated memory was 139.5 MB in the beginning and 1.1 GB in the end (delta: 977.8 MB). Free memory was 97.8 MB in the beginning and 471.8 MB in the end (delta: -374.1 MB). Peak memory consumption was 603.7 MB. Max. memory is 7.1 GB. [2020-10-12 23:15:47,596 INFO L168 Benchmark]: CDTParser took 1.40 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 23:15:47,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1353.64 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 97.3 MB in the beginning and 132.1 MB in the end (delta: -34.8 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2020-10-12 23:15:47,601 INFO L168 Benchmark]: Boogie Preprocessor took 138.69 ms. Allocated memory is still 203.9 MB. Free memory was 132.1 MB in the beginning and 125.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. [2020-10-12 23:15:47,604 INFO L168 Benchmark]: RCFGBuilder took 1344.53 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 125.7 MB in the beginning and 119.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2020-10-12 23:15:47,604 INFO L168 Benchmark]: TraceAbstraction took 62110.65 ms. Allocated memory was 236.5 MB in the beginning and 1.1 GB in the end (delta: 880.8 MB). Free memory was 119.2 MB in the beginning and 471.8 MB in the end (delta: -352.7 MB). Peak memory consumption was 528.1 MB. Max. memory is 7.1 GB. [2020-10-12 23:15:47,613 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.40 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1353.64 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 97.3 MB in the beginning and 132.1 MB in the end (delta: -34.8 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.69 ms. Allocated memory is still 203.9 MB. Free memory was 132.1 MB in the beginning and 125.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1344.53 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 125.7 MB in the beginning and 119.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 62110.65 ms. Allocated memory was 236.5 MB in the beginning and 1.1 GB in the end (delta: 880.8 MB). Free memory was 119.2 MB in the beginning and 471.8 MB in the end (delta: -352.7 MB). Peak memory consumption was 528.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3371]: 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 3541. Possible FailurePath: [L3394] int ldv_state_variable_1 ; [L3395] int LDV_IN_INTERRUPT = 1; [L3396] int usb_counter ; [L3397] int ref_cnt ; [L3398] int ldv_state_variable_0 ; [L3399] struct usb_interface *go7007_loader_driver_group1 ; [L3405-L3410] 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}}; [L3506-L3520] 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}}; [L3521] struct usb_device_id const __mod_usb_device_table ; [L3522-L3536] 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}; [L3552] int ldv_retval_0 ; [L3553] int ldv_retval_1 ; [L3710] int INTERF_STATE = 0; [L3711] int SERIAL_STATE = 0; [L3712] void *usb_intfdata = 0; [L3713] struct urb *usb_urb = 0; [L3714] struct usb_device *usb_dev = 0; [L3715] int dev_counter = 0; [L3716] int completeFnIntCounter = 0; [L3717] int completeFnBulkCounter = 0; [L3718] void (*completeFnInt)(struct urb * ) ; [L3719] void (*completeFnBulk)(struct urb * ) ; [L3567] struct usb_device_id *ldvarg0 ; [L3568] void *tmp ; [L3569] int tmp___0 ; [L3570] int tmp___1 ; [L3571] int tmp___2 ; [L3573] CALL, EXPR ldv_zalloc(32UL) [L3336] void *p ; [L3337] void *tmp ; [L3338] int tmp___0 ; [L3340] tmp___0 = __VERIFIER_nondet_int() [L3341] COND TRUE tmp___0 != 0 [L3342] return ((void *)0); [L3573] RET, EXPR ldv_zalloc(32UL) [L3573] tmp = ldv_zalloc(32UL) [L3574] ldvarg0 = (struct usb_device_id *)tmp [L3575] FCALL ldv_initialize() [L3576] ldv_state_variable_1 = 0 [L3577] ref_cnt = 0 [L3578] ldv_state_variable_0 = 1 [L3580] tmp___0 = __VERIFIER_nondet_int() [L3582] case 0: [L3612] case 1: [L3613] COND TRUE ldv_state_variable_0 != 0 [L3614] tmp___2 = __VERIFIER_nondet_int() [L3616] case 0: [L3624] case 1: [L3625] COND TRUE ldv_state_variable_0 == 1 [L3626] CALL, EXPR go7007_loader_driver_init() [L3539] int tmp ; [L3541] CALL, EXPR ldv_usb_register_driver_4(& go7007_loader_driver, & __this_module, "go7007_loader") [L3682] ldv_func_ret_type ldv_func_res ; [L3683] int tmp ; [L3685] CALL, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L3961] return __VERIFIER_nondet_int(); [L3685] RET, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L3685] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L3686] ldv_func_res = tmp [L3687] ldv_state_variable_1 = 1 [L3688] usb_counter = 0 [L3689] CALL ldv_usb_driver_1() [L3558] void *tmp ; [L3560] CALL, EXPR ldv_zalloc(1520UL) [L3336] void *p ; [L3337] void *tmp ; [L3338] int tmp___0 ; [L3340] tmp___0 = __VERIFIER_nondet_int() [L3341] COND TRUE tmp___0 != 0 [L3342] return ((void *)0); [L3560] RET, EXPR ldv_zalloc(1520UL) [L3560] tmp = ldv_zalloc(1520UL) [L3561] go7007_loader_driver_group1 = (struct usb_interface *)tmp [L3689] RET ldv_usb_driver_1() [L3690] return (ldv_func_res); [L3541] RET, EXPR ldv_usb_register_driver_4(& go7007_loader_driver, & __this_module, "go7007_loader") [L3541] tmp = ldv_usb_register_driver_4(& go7007_loader_driver, & __this_module, "go7007_loader") [L3542] return (tmp); [L3626] RET, EXPR go7007_loader_driver_init() [L3626] ldv_retval_1 = go7007_loader_driver_init() [L3627] COND TRUE ldv_retval_1 == 0 [L3628] ldv_state_variable_0 = 3 [L3631] COND FALSE !(ldv_retval_1 != 0) [L3580] tmp___0 = __VERIFIER_nondet_int() [L3582] case 0: [L3583] COND TRUE ldv_state_variable_1 != 0 [L3584] tmp___1 = __VERIFIER_nondet_int() [L3586] case 0: [L3587] COND TRUE ldv_state_variable_1 == 1 [L3588] CALL, EXPR go7007_loader_probe(go7007_loader_driver_group1, (struct usb_device_id const *)ldvarg0) [L3413] struct usb_device *usbdev ; [L3414] struct firmware const *fw ; [L3415] u16 vendor ; [L3416] u16 product ; [L3417] char const *fw1 ; [L3418] char const *fw2 ; [L3419] int ret ; [L3420] int i ; [L3421] struct usb_device *tmp ; [L3422] int tmp___0 ; [L3423] int tmp___1 ; [L3425] CALL, EXPR interface_to_usbdev(interface) [L3658] struct usb_device *tmp ; [L3660] CALL, EXPR ldv_interface_to_usbdev() [L3805] void *result ; [L3806] void *tmp ; [L3808] CALL, EXPR ldv_malloc(sizeof(struct usb_device)) [L3319] void *p ; [L3320] void *tmp ; [L3321] int tmp___0 ; [L3323] tmp___0 = __VERIFIER_nondet_int() [L3324] COND FALSE !(tmp___0 != 0) [L3327] tmp = malloc(size) [L3328] p = tmp [L3329] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L3315] COND FALSE !(!cond) [L3329] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L3330] return (p); [L3808] RET, EXPR ldv_malloc(sizeof(struct usb_device)) [L3808] tmp = ldv_malloc(sizeof(struct usb_device)) [L3809] result = tmp [L3810] COND TRUE (unsigned long )result != (unsigned long )((void *)0) [L3814] return (result); [L3660] RET, EXPR ldv_interface_to_usbdev() [L3660] tmp = ldv_interface_to_usbdev() [L3661] return (tmp); [L3425] RET, EXPR interface_to_usbdev(interface) [L3425] tmp = interface_to_usbdev(interface) [L3426] CALL, EXPR ldv_usb_get_dev_2(tmp) [L3666] struct usb_device *tmp ; [L3668] CALL, EXPR ldv_get_dev(ldv_func_arg1) [L3819] int tmp ; [L3821] COND TRUE (unsigned long )usb_dev == (unsigned long )((struct usb_device *)0) [L3822] CALL, EXPR ldv_undef_int() [L3353] int tmp ; [L3355] tmp = __VERIFIER_nondet_int() [L3356] return (tmp); [L3822] RET, EXPR ldv_undef_int() [L3822] tmp = ldv_undef_int() [L3823] COND TRUE \read(tmp) [L3824] dev_counter = dev_counter + 1 [L3825] usb_dev = data [L3833] return (usb_dev); [L3668] RET, EXPR ldv_get_dev(ldv_func_arg1) [L3668] tmp = ldv_get_dev(ldv_func_arg1) [L3669] return (tmp); [L3426] RET, EXPR ldv_usb_get_dev_2(tmp) [L3426] usbdev = ldv_usb_get_dev_2(tmp) [L3427] COND FALSE !((unsigned long )usbdev == (unsigned long )((struct usb_device *)0)) [L3431] EXPR usbdev->descriptor.bNumConfigurations [L3431] COND TRUE (unsigned int )usbdev->descriptor.bNumConfigurations != 1U [L3433] return (-19); [L3433] return (-19); [L3588] RET, EXPR go7007_loader_probe(go7007_loader_driver_group1, (struct usb_device_id const *)ldvarg0) [L3588] ldv_retval_0 = go7007_loader_probe(go7007_loader_driver_group1, (struct usb_device_id const *)ldvarg0) [L3589] COND FALSE !(ldv_retval_0 == 0) [L3580] tmp___0 = __VERIFIER_nondet_int() [L3582] case 0: [L3612] case 1: [L3613] COND TRUE ldv_state_variable_0 != 0 [L3614] tmp___2 = __VERIFIER_nondet_int() [L3616] case 0: [L3617] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L3618] CALL go7007_loader_driver_exit() [L3548] CALL ldv_usb_deregister_5(& go7007_loader_driver) [L3696] FCALL usb_deregister(arg) [L3697] ldv_state_variable_1 = 0 [L3548] RET ldv_usb_deregister_5(& go7007_loader_driver) [L3618] RET go7007_loader_driver_exit() [L3619] ldv_state_variable_0 = 2 [L3652] CALL ldv_check_final_state() [L3911] COND TRUE (unsigned long )usb_urb == (unsigned long )((struct urb *)0) [L3915] COND FALSE !((unsigned long )usb_dev == (unsigned long )((struct usb_device *)0)) [L3917] CALL ldv_error() [L3371] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 296 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 61.9s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 34.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2020 SDtfs, 4996 SDslu, 7855 SDs, 0 SdLazy, 8451 SolverSat, 2447 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 345 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 17.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=713occurred 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: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 949 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 25.1s InterpolantComputationTime, 721 NumberOfCodeBlocks, 721 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 582 ConstructedInterpolants, 0 QuantifiedInterpolants, 299902 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 22/22 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...