/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 SingleStatement --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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:58:37,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:58:37,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:58:37,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:58:37,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:58:37,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:58:37,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:58:37,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:58:37,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:58:37,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:58:37,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:58:37,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:58:37,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:58:37,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:58:37,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:58:37,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:58:37,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:58:37,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:58:37,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:58:37,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:58:37,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:58:37,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:58:37,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:58:37,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:58:37,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:58:37,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:58:37,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:58:37,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:58:37,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:58:37,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:58:37,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:58:37,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:58:37,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:58:37,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:58:37,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:58:37,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:58:37,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:58:37,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:58:37,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:58:37,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:58:37,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:58:37,954 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 [2020-09-24 18:58:38,016 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:58:38,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:58:38,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:58:38,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:58:38,019 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:58:38,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:58:38,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:58:38,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:58:38,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:58:38,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:58:38,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:58:38,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:58:38,021 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:58:38,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:58:38,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:58:38,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:58:38,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:58:38,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:58:38,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:58:38,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:58:38,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:58:38,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:58:38,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:58:38,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:58:38,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:58:38,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:58:38,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 18:58:38,025 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 -> SingleStatement 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=SMALLEST;log-additional-information=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=SMALLEST;log-additional-information=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=SMALLEST;log-additional-information=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=SMALLEST;log-additional-information=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=SMALLEST;log-additional-information=true; [2020-09-24 18:58:38,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:58:38,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:58:38,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:58:38,565 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:58:38,566 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:58:38,567 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-24 18:58:38,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e95b3cfc/5613408278994314b68f3eb04856a7ee/FLAGec49c78b3 [2020-09-24 18:58:39,583 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:58:39,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-24 18:58:39,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e95b3cfc/5613408278994314b68f3eb04856a7ee/FLAGec49c78b3 [2020-09-24 18:58:40,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e95b3cfc/5613408278994314b68f3eb04856a7ee [2020-09-24 18:58:40,043 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:58:40,048 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:58:40,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:58:40,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:58:40,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:58:40,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:58:40" (1/1) ... [2020-09-24 18:58:40,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1be01e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:40, skipping insertion in model container [2020-09-24 18:58:40,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:58:40" (1/1) ... [2020-09-24 18:58:40,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:58:40,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:58:42,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:58:42,151 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:58:42,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:58:42,912 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:58:42,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:42 WrapperNode [2020-09-24 18:58:42,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:58:42,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:58:42,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:58:42,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:58:42,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:42" (1/1) ... [2020-09-24 18:58:42,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:42" (1/1) ... [2020-09-24 18:58:43,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:42" (1/1) ... [2020-09-24 18:58:43,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:42" (1/1) ... [2020-09-24 18:58:43,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:42" (1/1) ... [2020-09-24 18:58:43,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:42" (1/1) ... [2020-09-24 18:58:43,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:42" (1/1) ... [2020-09-24 18:58:43,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:58:43,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:58:43,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:58:43,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:58:43,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:42" (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 [2020-09-24 18:58:43,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:58:43,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:58:43,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-09-24 18:58:43,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-09-24 18:58:43,640 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-09-24 18:58:43,640 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-09-24 18:58:43,641 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2020-09-24 18:58:43,641 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-24 18:58:43,641 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-09-24 18:58:43,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-09-24 18:58:43,642 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-09-24 18:58:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-09-24 18:58:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-09-24 18:58:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-09-24 18:58:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-09-24 18:58:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-09-24 18:58:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2020-09-24 18:58:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2020-09-24 18:58:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_readwrite_dw [2020-09-24 18:58:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_v8_memory_req [2020-09-24 18:58:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_memory_req [2020-09-24 18:58:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_get_mac_addr [2020-09-24 18:58:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_i2c_req [2020-09-24 18:58:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_read_ibi_reg [2020-09-24 18:58:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_write_ibi_reg [2020-09-24 18:58:43,646 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_i2c_request [2020-09-24 18:58:43,646 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_process_frame [2020-09-24 18:58:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_urb_complete [2020-09-24 18:58:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_stream_control [2020-09-24 18:58:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_exit [2020-09-24 18:58:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_init [2020-09-24 18:58:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_init [2020-09-24 18:58:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_exit [2020-09-24 18:58:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_probe [2020-09-24 18:58:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_disconnect [2020-09-24 18:58:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_driver_init [2020-09-24 18:58:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_driver_exit [2020-09-24 18:58:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:58:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-09-24 18:58:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-09-24 18:58:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-09-24 18:58:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-09-24 18:58:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-09-24 18:58:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-09-24 18:58:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-09-24 18:58:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_8 [2020-09-24 18:58:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_9 [2020-09-24 18:58:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 18:58:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 18:58:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 18:58:43,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:43,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:43,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:43,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 18:58:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-09-24 18:58:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-09-24 18:58:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-09-24 18:58:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 18:58:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-09-24 18:58:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-09-24 18:58:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 18:58:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 18:58:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 18:58:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 18:58:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 18:58:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 18:58:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 18:58:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 18:58:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 18:58:43,656 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-09-24 18:58:43,657 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-09-24 18:58:43,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 18:58:43,657 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 18:58:43,657 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 18:58:43,657 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_exit [2020-09-24 18:58:43,657 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_initialize [2020-09-24 18:58:43,658 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kfree [2020-09-24 18:58:43,658 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kmalloc [2020-09-24 18:58:43,659 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_pass_dmx_packets [2020-09-24 18:58:43,659 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_sram_ctrl [2020-09-24 18:58:43,659 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_sram_set_dest [2020-09-24 18:58:43,659 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_wan_set_speed [2020-09-24 18:58:43,660 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-24 18:58:43,660 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-09-24 18:58:43,660 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-24 18:58:43,660 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-24 18:58:43,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-24 18:58:43,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-09-24 18:58:43,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-24 18:58:43,661 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-24 18:58:43,661 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-09-24 18:58:43,661 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-24 18:58:43,662 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-09-24 18:58:43,662 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-24 18:58:43,662 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-24 18:58:43,662 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 18:58:43,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 18:58:43,663 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-24 18:58:43,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:58:43,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 18:58:43,663 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-24 18:58:43,663 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 18:58:43,663 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-24 18:58:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-09-24 18:58:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:58:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-09-24 18:58:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-09-24 18:58:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-09-24 18:58:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-24 18:58:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-09-24 18:58:43,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-09-24 18:58:43,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-09-24 18:58:43,665 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-24 18:58:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-09-24 18:58:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-09-24 18:58:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-09-24 18:58:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-09-24 18:58:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-09-24 18:58:43,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 18:58:43,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 18:58:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 18:58:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:58:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 18:58:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 18:58:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2020-09-24 18:58:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-24 18:58:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-09-24 18:58:43,674 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-24 18:58:43,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_8 [2020-09-24 18:58:43,674 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-24 18:58:43,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_9 [2020-09-24 18:58:43,675 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-24 18:58:43,675 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-24 18:58:43,675 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-24 18:58:43,675 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-09-24 18:58:43,676 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-09-24 18:58:43,676 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-09-24 18:58:43,676 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-09-24 18:58:43,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:58:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-09-24 18:58:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-09-24 18:58:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-09-24 18:58:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-09-24 18:58:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-09-24 18:58:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-09-24 18:58:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-09-24 18:58:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-09-24 18:58:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-09-24 18:58:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:58:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-09-24 18:58:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2020-09-24 18:58:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2020-09-24 18:58:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_pass_dmx_packets [2020-09-24 18:58:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kmalloc [2020-09-24 18:58:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kfree [2020-09-24 18:58:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_initialize [2020-09-24 18:58:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_exit [2020-09-24 18:58:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_sram_set_dest [2020-09-24 18:58:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_wan_set_speed [2020-09-24 18:58:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_sram_ctrl [2020-09-24 18:58:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_readwrite_dw [2020-09-24 18:58:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_v8_memory_req [2020-09-24 18:58:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_memory_req [2020-09-24 18:58:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_get_mac_addr [2020-09-24 18:58:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_i2c_req [2020-09-24 18:58:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_read_ibi_reg [2020-09-24 18:58:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:58:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:58:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_write_ibi_reg [2020-09-24 18:58:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_i2c_request [2020-09-24 18:58:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-24 18:58:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_process_frame [2020-09-24 18:58:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-24 18:58:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_urb_complete [2020-09-24 18:58:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_stream_control [2020-09-24 18:58:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_exit [2020-09-24 18:58:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_init [2020-09-24 18:58:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:58:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 18:58:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_init [2020-09-24 18:58:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_exit [2020-09-24 18:58:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_probe [2020-09-24 18:58:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_disconnect [2020-09-24 18:58:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_driver_init [2020-09-24 18:58:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_driver_exit [2020-09-24 18:58:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 18:58:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 18:58:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:58:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 18:58:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 18:58:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 18:58:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 18:58:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-09-24 18:58:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-09-24 18:58:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 18:58:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-09-24 18:58:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 18:58:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 18:58:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 18:58:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 18:58:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 18:58:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:58:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 18:58:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:58:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:58:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 18:58:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:58:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:58:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 18:58:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:58:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-24 18:58:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-24 18:58:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-24 18:58:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-24 18:58:48,223 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:58:48,224 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 18:58:48,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:58:48 BoogieIcfgContainer [2020-09-24 18:58:48,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:58:48,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:58:48,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:58:48,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:58:48,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:58:40" (1/3) ... [2020-09-24 18:58:48,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb3c325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:58:48, skipping insertion in model container [2020-09-24 18:58:48,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:58:42" (2/3) ... [2020-09-24 18:58:48,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb3c325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:58:48, skipping insertion in model container [2020-09-24 18:58:48,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:58:48" (3/3) ... [2020-09-24 18:58:48,250 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-24 18:58:48,262 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:58:48,272 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:58:48,290 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:58:48,325 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:58:48,325 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:58:48,325 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:58:48,326 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:58:48,326 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:58:48,326 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:58:48,326 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:58:48,326 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:58:48,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states. [2020-09-24 18:58:48,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-24 18:58:48,393 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:58:48,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:58:48,395 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:58:48,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:58:48,403 INFO L82 PathProgramCache]: Analyzing trace with hash 2037642771, now seen corresponding path program 1 times [2020-09-24 18:58:48,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:58:48,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251531900] [2020-09-24 18:58:48,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:58:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:58:49,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:58:50,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:58:51,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:58:51,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 18:58:51,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:58:51,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2523 [2020-09-24 18:58:51,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:58:51,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:58:51,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 18:58:51,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:58:51,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:58:52,530 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 18:58:52,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:58:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:58:52,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:58:53,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:58:53,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-24 18:58:53,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:58:53,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 581 [2020-09-24 18:58:53,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:58:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:58:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:58:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:58:53,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:58:53,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 18:58:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:58:53,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:58:53,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:58:53,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:58:53,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:58:53,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-24 18:58:53,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:58:53,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:58:53,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:58:53,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:58:53,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:58:53,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-09-24 18:58:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:58:53,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:58:53,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:58:53,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 18:58:53,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:58:53,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-24 18:58:53,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:58:53,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:58:53,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 18:58:53,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:58:53,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:58:53,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:58:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:58:53,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:58:53,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:58:53,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 18:58:53,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:58:53,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 18:58:53,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:58:53,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:58:53,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:58:53,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:58:53,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:58:53,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:58:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:58:54,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:58:54,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:58:54,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:58:54,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:58:54,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 18:58:54,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:58:54,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:58:54,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:58:54,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:58:54,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:58:54,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:58:54,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251531900] [2020-09-24 18:58:54,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:58:54,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:58:54,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349133926] [2020-09-24 18:58:54,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:58:54,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:58:54,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:58:54,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:58:54,202 INFO L87 Difference]: Start difference. First operand 2184 states. Second operand 6 states. [2020-09-24 18:58:55,716 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-24 18:59:05,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:59:05,118 INFO L93 Difference]: Finished difference Result 1878 states and 2091 transitions. [2020-09-24 18:59:05,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:59:05,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2020-09-24 18:59:05,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:59:05,151 INFO L225 Difference]: With dead ends: 1878 [2020-09-24 18:59:05,151 INFO L226 Difference]: Without dead ends: 1838 [2020-09-24 18:59:05,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:59:05,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-09-24 18:59:05,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1541. [2020-09-24 18:59:05,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1541 states. [2020-09-24 18:59:05,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 1676 transitions. [2020-09-24 18:59:05,435 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 1676 transitions. Word has length 192 [2020-09-24 18:59:05,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:59:05,436 INFO L479 AbstractCegarLoop]: Abstraction has 1541 states and 1676 transitions. [2020-09-24 18:59:05,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:59:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 1676 transitions. [2020-09-24 18:59:05,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-24 18:59:05,443 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:59:05,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:59:05,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:59:05,445 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:59:05,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:59:05,445 INFO L82 PathProgramCache]: Analyzing trace with hash 526616234, now seen corresponding path program 1 times [2020-09-24 18:59:05,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:59:05,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832041110] [2020-09-24 18:59:05,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:59:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:05,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:06,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:06,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-09-24 18:59:06,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:06,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1035 [2020-09-24 18:59:06,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-24 18:59:06,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 18:59:06,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:07,782 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 18:59:07,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:59:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:07,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:08,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:08,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-24 18:59:08,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:08,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-09-24 18:59:08,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:08,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:08,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:08,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:08,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:08,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 18:59:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:08,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:08,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:08,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:59:08,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:08,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-24 18:59:08,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:08,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:08,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:08,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:59:08,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:08,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 18:59:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:08,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:08,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:08,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 18:59:08,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:08,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-24 18:59:08,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:08,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:08,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:08,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 18:59:08,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:08,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:08,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:09,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:09,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 18:59:09,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:09,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 18:59:09,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:09,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:09,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:09,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 18:59:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:09,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:09,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:09,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:59:09,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:09,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 18:59:09,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:09,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:09,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:09,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:09,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:09,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:59:09,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832041110] [2020-09-24 18:59:09,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:59:09,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:59:09,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109632130] [2020-09-24 18:59:09,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:59:09,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:59:09,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:59:09,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:59:09,428 INFO L87 Difference]: Start difference. First operand 1541 states and 1676 transitions. Second operand 6 states. [2020-09-24 18:59:10,994 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-24 18:59:14,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:59:14,729 INFO L93 Difference]: Finished difference Result 1839 states and 2039 transitions. [2020-09-24 18:59:14,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:59:14,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2020-09-24 18:59:14,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:59:14,743 INFO L225 Difference]: With dead ends: 1839 [2020-09-24 18:59:14,743 INFO L226 Difference]: Without dead ends: 1836 [2020-09-24 18:59:14,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:59:14,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2020-09-24 18:59:14,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1540. [2020-09-24 18:59:14,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1540 states. [2020-09-24 18:59:14,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 1674 transitions. [2020-09-24 18:59:14,949 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 1674 transitions. Word has length 219 [2020-09-24 18:59:14,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:59:14,951 INFO L479 AbstractCegarLoop]: Abstraction has 1540 states and 1674 transitions. [2020-09-24 18:59:14,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:59:14,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 1674 transitions. [2020-09-24 18:59:14,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-24 18:59:14,956 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:59:14,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:59:14,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:59:14,957 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:59:14,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:59:14,958 INFO L82 PathProgramCache]: Analyzing trace with hash -855644402, now seen corresponding path program 1 times [2020-09-24 18:59:14,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:59:14,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624215853] [2020-09-24 18:59:14,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:59:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:15,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:16,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:16,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 18:59:16,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:16,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1011 [2020-09-24 18:59:16,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-24 18:59:16,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 18:59:16,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:17,266 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 18:59:17,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:59:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:17,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:17,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:17,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-24 18:59:17,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:17,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 535 [2020-09-24 18:59:17,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:17,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:17,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:17,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:17,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:18,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 18:59:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:59:18,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-24 18:59:18,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:18,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:18,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:59:18,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:18,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 18:59:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 18:59:18,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-24 18:59:18,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:18,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:18,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 18:59:18,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:18,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 18:59:18,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 18:59:18,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:18,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:18,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 18:59:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:18,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:18,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:18,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:59:18,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:18,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 18:59:18,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:18,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:18,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:18,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:18,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:18,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:59:18,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624215853] [2020-09-24 18:59:18,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:59:18,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:59:18,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937635560] [2020-09-24 18:59:18,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:59:18,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:59:18,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:59:18,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:59:18,957 INFO L87 Difference]: Start difference. First operand 1540 states and 1674 transitions. Second operand 6 states. [2020-09-24 18:59:20,481 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-24 18:59:24,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:59:24,279 INFO L93 Difference]: Finished difference Result 1838 states and 2037 transitions. [2020-09-24 18:59:24,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:59:24,280 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 220 [2020-09-24 18:59:24,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:59:24,291 INFO L225 Difference]: With dead ends: 1838 [2020-09-24 18:59:24,291 INFO L226 Difference]: Without dead ends: 1835 [2020-09-24 18:59:24,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:59:24,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2020-09-24 18:59:24,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1539. [2020-09-24 18:59:24,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1539 states. [2020-09-24 18:59:24,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 1672 transitions. [2020-09-24 18:59:24,504 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 1672 transitions. Word has length 220 [2020-09-24 18:59:24,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:59:24,505 INFO L479 AbstractCegarLoop]: Abstraction has 1539 states and 1672 transitions. [2020-09-24 18:59:24,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:59:24,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 1672 transitions. [2020-09-24 18:59:24,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-24 18:59:24,509 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:59:24,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:59:24,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:59:24,510 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:59:24,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:59:24,510 INFO L82 PathProgramCache]: Analyzing trace with hash -756046291, now seen corresponding path program 1 times [2020-09-24 18:59:24,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:59:24,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [764309849] [2020-09-24 18:59:24,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:59:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:24,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:25,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:25,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-24 18:59:25,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:25,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 912 [2020-09-24 18:59:25,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:25,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:25,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 18:59:25,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 18:59:25,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:26,669 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 18:59:26,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:59:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:26,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:27,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:27,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-24 18:59:27,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:27,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-09-24 18:59:27,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:27,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:27,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:27,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 18:59:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:27,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:27,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:27,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:59:27,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:27,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-24 18:59:27,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:27,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:27,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:27,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:59:27,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:59:27,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 18:59:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:27,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:27,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:27,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 18:59:27,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:27,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-09-24 18:59:27,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:27,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:59:27,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 18:59:27,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:27,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:59:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:27,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:27,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:27,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 18:59:27,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:27,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-24 18:59:27,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:27,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:27,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:28,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 18:59:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:59:28,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:59:28,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:59:28,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:59:28,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:59:28,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 18:59:28,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:59:28,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:59:28,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:59:28,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:59:28,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:59:28,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:59:28,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [764309849] [2020-09-24 18:59:28,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:59:28,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:59:28,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850175613] [2020-09-24 18:59:28,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:59:28,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:59:28,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:59:28,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:59:28,298 INFO L87 Difference]: Start difference. First operand 1539 states and 1672 transitions. Second operand 6 states.