/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--net--wireless--p54--p54usb.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 23:13:47,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 23:13:47,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 23:13:47,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 23:13:47,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 23:13:47,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 23:13:47,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 23:13:47,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 23:13:47,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 23:13:47,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 23:13:47,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 23:13:47,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 23:13:47,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 23:13:47,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 23:13:47,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 23:13:47,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 23:13:47,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 23:13:47,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 23:13:47,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 23:13:47,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 23:13:47,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 23:13:47,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 23:13:47,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 23:13:47,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 23:13:47,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 23:13:47,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 23:13:47,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 23:13:47,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 23:13:47,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 23:13:47,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 23:13:47,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 23:13:47,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 23:13:47,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 23:13:47,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 23:13:47,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 23:13:47,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 23:13:47,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 23:13:47,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 23:13:47,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 23:13:47,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 23:13:47,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 23:13:47,112 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 23:13:47,134 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 23:13:47,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 23:13:47,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 23:13:47,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 23:13:47,137 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 23:13:47,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 23:13:47,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 23:13:47,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 23:13:47,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 23:13:47,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 23:13:47,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 23:13:47,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 23:13:47,138 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 23:13:47,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 23:13:47,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 23:13:47,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 23:13:47,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 23:13:47,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 23:13:47,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 23:13:47,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 23:13:47,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 23:13:47,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 23:13:47,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 23:13:47,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 23:13:47,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 23:13:47,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 23:13:47,141 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-12 23:13:47,141 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 23:13:47,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 23:13:47,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 23:13:47,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 23:13:47,484 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 23:13:47,484 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 23:13:47,485 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2020-10-12 23:13:47,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb5fc9429/e3c4aa5a93ce4a0baa7ba32dcdcd4fe2/FLAG77107087c [2020-10-12 23:13:48,381 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 23:13:48,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2020-10-12 23:13:48,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb5fc9429/e3c4aa5a93ce4a0baa7ba32dcdcd4fe2/FLAG77107087c [2020-10-12 23:13:48,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb5fc9429/e3c4aa5a93ce4a0baa7ba32dcdcd4fe2 [2020-10-12 23:13:48,898 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 23:13:48,900 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 23:13:48,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 23:13:48,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 23:13:48,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 23:13:48,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:13:48" (1/1) ... [2020-10-12 23:13:48,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b25bcee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:13:48, skipping insertion in model container [2020-10-12 23:13:48,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:13:48" (1/1) ... [2020-10-12 23:13:48,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 23:13:49,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 23:13:50,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 23:13:50,997 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 23:13:51,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 23:13:51,619 INFO L208 MainTranslator]: Completed translation [2020-10-12 23:13:51,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:13:51 WrapperNode [2020-10-12 23:13:51,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 23:13:51,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 23:13:51,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 23:13:51,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 23:13:51,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:13:51" (1/1) ... [2020-10-12 23:13:51,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:13:51" (1/1) ... [2020-10-12 23:13:51,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:13:51" (1/1) ... [2020-10-12 23:13:51,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:13:51" (1/1) ... [2020-10-12 23:13:51,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:13:51" (1/1) ... [2020-10-12 23:13:51,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:13:51" (1/1) ... [2020-10-12 23:13:51,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:13:51" (1/1) ... [2020-10-12 23:13:51,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 23:13:51,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 23:13:51,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 23:13:51,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 23:13:51,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:13:51" (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 23:13:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 23:13:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 23:13:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-10-12 23:13:52,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-12 23:13:52,054 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-12 23:13:52,054 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-12 23:13:52,054 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2020-10-12 23:13:52,054 INFO L138 BoogieDeclarations]: Found implementation of procedure device_lock [2020-10-12 23:13:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2020-10-12 23:13:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2020-10-12 23:13:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-12 23:13:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-12 23:13:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-12 23:13:52,056 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 23:13:52,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-12 23:13:52,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-12 23:13:52,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-12 23:13:52,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-12 23:13:52,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-12 23:13:52,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-12 23:13:52,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-12 23:13:52,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-12 23:13:52,058 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2020-10-12 23:13:52,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2020-10-12 23:13:52,058 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2020-10-12 23:13:52,058 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2020-10-12 23:13:52,058 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2020-10-12 23:13:52,058 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2020-10-12 23:13:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_alloc_skb [2020-10-12 23:13:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2020-10-12 23:13:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wiphy_dev [2020-10-12 23:13:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure SET_IEEE80211_DEV [2020-10-12 23:13:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_rx_cb [2020-10-12 23:13:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_cb [2020-10-12 23:13:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_dummy_cb [2020-10-12 23:13:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_free_urbs [2020-10-12 23:13:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_stop [2020-10-12 23:13:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_init_urbs [2020-10-12 23:13:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_open [2020-10-12 23:13:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_lm87_chksum [2020-10-12 23:13:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_lm87 [2020-10-12 23:13:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_tx_net2280 [2020-10-12 23:13:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_write [2020-10-12 23:13:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_read [2020-10-12 23:13:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_bulk_msg [2020-10-12 23:13:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_device_reset [2020-10-12 23:13:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_firmware_reset_3887 [2020-10-12 23:13:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_upload_firmware_3887 [2020-10-12 23:13:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_upload_firmware_net2280 [2020-10-12 23:13:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_find_type [2020-10-12 23:13:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_start_ops [2020-10-12 23:13:52,063 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_load_firmware_cb [2020-10-12 23:13:52,063 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_load_firmware [2020-10-12 23:13:52,063 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_probe [2020-10-12 23:13:52,063 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_disconnect [2020-10-12 23:13:52,064 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_pre_reset [2020-10-12 23:13:52,064 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_resume [2020-10-12 23:13:52,064 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_post_reset [2020-10-12 23:13:52,064 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_suspend [2020-10-12 23:13:52,064 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_driver_init [2020-10-12 23:13:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_driver_exit [2020-10-12 23:13:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-12 23:13:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 23:13:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-12 23:13:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2020-10-12 23:13:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2020-10-12 23:13:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_4 [2020-10-12 23:13:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_5 [2020-10-12 23:13:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2020-10-12 23:13:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_7 [2020-10-12 23:13:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2020-10-12 23:13:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2020-10-12 23:13:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2020-10-12 23:13:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_12 [2020-10-12 23:13:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_13 [2020-10-12 23:13:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_14 [2020-10-12 23:13:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_17 [2020-10-12 23:13:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_18 [2020-10-12 23:13:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_19 [2020-10-12 23:13:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_20 [2020-10-12 23:13:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_21 [2020-10-12 23:13:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_22 [2020-10-12 23:13:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_23 [2020-10-12 23:13:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_24 [2020-10-12 23:13:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_26 [2020-10-12 23:13:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_30 [2020-10-12 23:13:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_31 [2020-10-12 23:13:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-12 23:13:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-12 23:13:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-12 23:13:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-12 23:13:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-12 23:13:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-12 23:13:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-12 23:13:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-12 23:13:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-12 23:13:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-12 23:13:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-12 23:13:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-12 23:13:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-12 23:13:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-12 23:13:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-12 23:13:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-12 23:13:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-12 23:13:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-12 23:13:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-12 23:13:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2020-10-12 23:13:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-12 23:13:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-12 23:13:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2020-10-12 23:13:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2020-10-12 23:13:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-12 23:13:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-10-12 23:13:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure device_release_driver [2020-10-12 23:13:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_restart_hw [2020-10-12 23:13:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2020-10-12 23:13:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2020-10-12 23:13:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-12 23:13:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2020-10-12 23:13:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-12 23:13:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-12 23:13:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_common [2020-10-12 23:13:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_skb [2020-10-12 23:13:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_init_common [2020-10-12 23:13:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_parse_firmware [2020-10-12 23:13:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_read_eeprom [2020-10-12 23:13:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_register_common [2020-10-12 23:13:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_rx [2020-10-12 23:13:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_unregister_common [2020-10-12 23:13:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2020-10-12 23:13:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware_nowait [2020-10-12 23:13:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-12 23:13:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-12 23:13:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-12 23:13:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2020-10-12 23:13:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-10-12 23:13:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2020-10-12 23:13:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2020-10-12 23:13:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2020-10-12 23:13:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-12 23:13:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2020-10-12 23:13:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_interrupt_msg [2020-10-12 23:13:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2020-10-12 23:13:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_lock_device_for_reset [2020-10-12 23:13:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-12 23:13:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2020-10-12 23:13:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2020-10-12 23:13:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2020-10-12 23:13:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-12 23:13:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-12 23:13:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-12 23:13:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-12 23:13:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-12 23:13:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 23:13:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-12 23:13:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-12 23:13:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-12 23:13:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-10-12 23:13:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-12 23:13:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-12 23:13:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2020-10-12 23:13:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-12 23:13:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-12 23:13:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 23:13:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-12 23:13:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-12 23:13:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2020-10-12 23:13:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-12 23:13:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2020-10-12 23:13:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 23:13:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 23:13:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 23:13:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2020-10-12 23:13:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2020-10-12 23:13:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-12 23:13:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-12 23:13:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure device_lock [2020-10-12 23:13:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2020-10-12 23:13:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure device_release_driver [2020-10-12 23:13:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-12 23:13:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-12 23:13:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2020-10-12 23:13:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_23 [2020-10-12 23:13:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-12 23:13:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_22 [2020-10-12 23:13:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_24 [2020-10-12 23:13:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_21 [2020-10-12 23:13:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_26 [2020-10-12 23:13:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_lock_device_for_reset [2020-10-12 23:13:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2020-10-12 23:13:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2020-10-12 23:13:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-12 23:13:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_30 [2020-10-12 23:13:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-12 23:13:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_31 [2020-10-12 23:13:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2020-10-12 23:13:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_5 [2020-10-12 23:13:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_4 [2020-10-12 23:13:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2020-10-12 23:13:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_13 [2020-10-12 23:13:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_14 [2020-10-12 23:13:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_7 [2020-10-12 23:13:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2020-10-12 23:13:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_12 [2020-10-12 23:13:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_19 [2020-10-12 23:13:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_20 [2020-10-12 23:13:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2020-10-12 23:13:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2020-10-12 23:13:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2020-10-12 23:13:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_17 [2020-10-12 23:13:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_18 [2020-10-12 23:13:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2020-10-12 23:13:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2020-10-12 23:13:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2020-10-12 23:13:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure usb_interrupt_msg [2020-10-12 23:13:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2020-10-12 23:13:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-12 23:13:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 23:13:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-12 23:13:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-12 23:13:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-12 23:13:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-12 23:13:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-12 23:13:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-12 23:13:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-12 23:13:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-12 23:13:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-12 23:13:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-12 23:13:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-12 23:13:52,093 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-12 23:13:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-12 23:13:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 23:13:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 23:13:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 23:13:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-12 23:13:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 23:13:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 23:13:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 23:13:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-12 23:13:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-12 23:13:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-12 23:13:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-12 23:13:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-12 23:13:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-12 23:13:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-12 23:13:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-12 23:13:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware_nowait [2020-10-12 23:13:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2020-10-12 23:13:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2020-10-12 23:13:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2020-10-12 23:13:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2020-10-12 23:13:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2020-10-12 23:13:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2020-10-12 23:13:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2020-10-12 23:13:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2020-10-12 23:13:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 23:13:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2020-10-12 23:13:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-12 23:13:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-12 23:13:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-12 23:13:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-10-12 23:13:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2020-10-12 23:13:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2020-10-12 23:13:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_alloc_skb [2020-10-12 23:13:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2020-10-12 23:13:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-10-12 23:13:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2020-10-12 23:13:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure set_wiphy_dev [2020-10-12 23:13:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure SET_IEEE80211_DEV [2020-10-12 23:13:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_restart_hw [2020-10-12 23:13:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure p54_rx [2020-10-12 23:13:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_skb [2020-10-12 23:13:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure p54_parse_firmware [2020-10-12 23:13:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure p54_read_eeprom [2020-10-12 23:13:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure p54_init_common [2020-10-12 23:13:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure p54_register_common [2020-10-12 23:13:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_common [2020-10-12 23:13:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure p54_unregister_common [2020-10-12 23:13:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_rx_cb [2020-10-12 23:13:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_cb [2020-10-12 23:13:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_dummy_cb [2020-10-12 23:13:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_free_urbs [2020-10-12 23:13:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_stop [2020-10-12 23:13:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_init_urbs [2020-10-12 23:13:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_open [2020-10-12 23:13:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_lm87_chksum [2020-10-12 23:13:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_lm87 [2020-10-12 23:13:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_tx_net2280 [2020-10-12 23:13:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-12 23:13:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_write [2020-10-12 23:13:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_read [2020-10-12 23:13:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_bulk_msg [2020-10-12 23:13:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_device_reset [2020-10-12 23:13:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_firmware_reset_3887 [2020-10-12 23:13:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_upload_firmware_3887 [2020-10-12 23:13:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-12 23:13:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-12 23:13:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_upload_firmware_net2280 [2020-10-12 23:13:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure p54_find_type [2020-10-12 23:13:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_start_ops [2020-10-12 23:13:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-10-12 23:13:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_load_firmware_cb [2020-10-12 23:13:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_load_firmware [2020-10-12 23:13:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_probe [2020-10-12 23:13:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_disconnect [2020-10-12 23:13:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_pre_reset [2020-10-12 23:13:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_resume [2020-10-12 23:13:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_post_reset [2020-10-12 23:13:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_suspend [2020-10-12 23:13:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_driver_init [2020-10-12 23:13:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_driver_exit [2020-10-12 23:13:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-12 23:13:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-12 23:13:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 23:13:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-12 23:13:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-12 23:13:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-12 23:13:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-12 23:13:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-12 23:13:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-12 23:13:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-12 23:13:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-12 23:13:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-12 23:13:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 23:13:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 23:13:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 23:13:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-12 23:13:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-12 23:13:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 23:13:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 23:13:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-12 23:13:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-12 23:13:53,018 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-12 23:14:15,897 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-12 23:14:16,502 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 23:14:16,502 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 23:14:16,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:14:16 BoogieIcfgContainer [2020-10-12 23:14:16,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 23:14:16,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 23:14:16,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 23:14:16,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 23:14:16,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:13:48" (1/3) ... [2020-10-12 23:14:16,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3535643e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:14:16, skipping insertion in model container [2020-10-12 23:14:16,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:13:51" (2/3) ... [2020-10-12 23:14:16,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3535643e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:14:16, skipping insertion in model container [2020-10-12 23:14:16,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:14:16" (3/3) ... [2020-10-12 23:14:16,521 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2020-10-12 23:14:16,532 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 23:14:16,541 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 23:14:16,555 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 23:14:16,582 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 23:14:16,583 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 23:14:16,583 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 23:14:16,583 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 23:14:16,583 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 23:14:16,583 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 23:14:16,583 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 23:14:16,583 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 23:14:16,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states. [2020-10-12 23:14:16,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-12 23:14:16,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:14:16,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 23:14:16,656 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:14:16,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:14:16,663 INFO L82 PathProgramCache]: Analyzing trace with hash 931878669, now seen corresponding path program 1 times [2020-10-12 23:14:16,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:14:16,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719986976] [2020-10-12 23:14:16,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:14:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:17,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:17,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:21,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:23,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:23,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-12 23:14:23,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 23:14:23,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5793 [2020-10-12 23:14:23,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:23,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:14:23,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:14:23,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 23:14:23,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 23:14:24,048 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-12 23:14:24,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:14:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:24,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:25,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:25,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:25,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:25,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 971 [2020-10-12 23:14:25,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:25,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:25,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:25,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:14:25,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:25,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:14:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:25,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:25,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:25,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:25,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:25,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 23:14:25,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:25,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:25,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:25,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:14:25,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:25,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:14:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:25,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:25,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:25,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:14:25,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:25,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 23:14:25,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:25,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:25,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:25,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:14:25,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:25,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 23:14:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:25,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:25,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:25,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:25,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:14:25,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:14:25,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 23:14:25,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:25,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 23:14:25,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 23:14:25,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:14:25,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:25,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 23:14:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:25,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:25,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:25,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 23:14:25,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:25,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 23:14:25,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:25,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:14:25,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:25,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 23:14:25,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:25,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:14:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:25,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:25,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:25,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:14:25,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:25,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 23:14:25,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:25,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:25,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:25,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:25,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:25,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:14:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:14:25,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:14:25,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:14:25,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:14:25,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:14:25,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 23:14:25,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:14:25,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:14:25,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:14:25,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:14:25,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:14:25,584 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 23:14:25,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719986976] [2020-10-12 23:14:25,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:14:25,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 23:14:25,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048513835] [2020-10-12 23:14:25,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 23:14:25,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:14:25,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 23:14:25,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 23:14:25,617 INFO L87 Difference]: Start difference. First operand 1236 states. Second operand 9 states. [2020-10-12 23:14:28,450 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2020-10-12 23:14:29,516 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 345 [2020-10-12 23:14:30,150 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 347 [2020-10-12 23:15:02,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:15:02,278 INFO L93 Difference]: Finished difference Result 3764 states and 5213 transitions. [2020-10-12 23:15:02,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 23:15:02,281 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2020-10-12 23:15:02,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:15:02,323 INFO L225 Difference]: With dead ends: 3764 [2020-10-12 23:15:02,323 INFO L226 Difference]: Without dead ends: 2678 [2020-10-12 23:15:02,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2020-10-12 23:15:02,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2020-10-12 23:15:02,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 2181. [2020-10-12 23:15:02,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2181 states. [2020-10-12 23:15:02,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 2904 transitions. [2020-10-12 23:15:02,898 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 2904 transitions. Word has length 44 [2020-10-12 23:15:02,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:15:02,900 INFO L479 AbstractCegarLoop]: Abstraction has 2181 states and 2904 transitions. [2020-10-12 23:15:02,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 23:15:02,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 2904 transitions. [2020-10-12 23:15:02,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 23:15:02,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:15:02,911 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] [2020-10-12 23:15:02,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 23:15:02,912 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:15:02,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:15:02,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1463790034, now seen corresponding path program 1 times [2020-10-12 23:15:02,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:15:02,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104027919] [2020-10-12 23:15:02,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:15:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:03,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:03,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:07,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:08,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:08,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 23:15:08,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 23:15:08,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5563 [2020-10-12 23:15:08,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:08,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:15:08,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:15:08,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 23:15:08,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:09,449 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-12 23:15:09,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:15:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:09,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:10,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:10,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 688 [2020-10-12 23:15:10,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:15:10,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:10,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:15:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:10,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:15:10,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:10,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 23:15:10,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:10,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:10,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:15:10,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:10,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:15:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:10,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:15:10,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:10,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 23:15:10,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:10,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:10,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:15:10,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:10,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 23:15:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:10,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 23:15:10,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:15:10,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-12 23:15:10,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:15:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 23:15:10,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 23:15:10,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:10,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 23:15:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:10,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 23:15:10,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:10,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 23:15:10,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:15:10,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:10,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 23:15:10,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:10,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:15:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:10,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:15:10,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:10,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 23:15:10,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:10,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:10,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:10,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:15:10,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:15:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:15:10,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:15:10,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:15:10,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:15:10,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:15:10,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:15:10,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:15:10,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:15:10,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:15:10,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:15:10,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 23:15:10,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 23:15:10,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104027919] [2020-10-12 23:15:10,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 23:15:10,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 23:15:10,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957329470] [2020-10-12 23:15:10,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 23:15:10,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:15:10,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 23:15:10,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-12 23:15:10,847 INFO L87 Difference]: Start difference. First operand 2181 states and 2904 transitions. Second operand 11 states. [2020-10-12 23:15:13,548 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2020-10-12 23:15:14,394 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 345 [2020-10-12 23:15:22,705 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 345 [2020-10-12 23:16:05,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:16:05,878 INFO L93 Difference]: Finished difference Result 10045 states and 13849 transitions. [2020-10-12 23:16:05,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 23:16:05,879 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 46 [2020-10-12 23:16:05,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:16:05,937 INFO L225 Difference]: With dead ends: 10045 [2020-10-12 23:16:05,937 INFO L226 Difference]: Without dead ends: 7879 [2020-10-12 23:16:05,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2020-10-12 23:16:05,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7879 states. [2020-10-12 23:16:07,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7879 to 6675. [2020-10-12 23:16:07,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6675 states. [2020-10-12 23:16:07,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6675 states to 6675 states and 8997 transitions. [2020-10-12 23:16:07,260 INFO L78 Accepts]: Start accepts. Automaton has 6675 states and 8997 transitions. Word has length 46 [2020-10-12 23:16:07,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:16:07,261 INFO L479 AbstractCegarLoop]: Abstraction has 6675 states and 8997 transitions. [2020-10-12 23:16:07,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 23:16:07,261 INFO L276 IsEmpty]: Start isEmpty. Operand 6675 states and 8997 transitions. [2020-10-12 23:16:07,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-12 23:16:07,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:16:07,265 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 23:16:07,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 23:16:07,266 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:16:07,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:16:07,266 INFO L82 PathProgramCache]: Analyzing trace with hash 2065811952, now seen corresponding path program 1 times [2020-10-12 23:16:07,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:16:07,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022195953] [2020-10-12 23:16:07,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:16:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:07,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:07,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:11,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:12,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:12,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 23:16:12,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 23:16:12,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5187 [2020-10-12 23:16:12,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:12,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 23:16:12,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-12 23:16:12,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:16:12,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:13,263 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-12 23:16:13,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:16:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:13,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:13,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:13,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:16:13,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:16:13,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-12 23:16:13,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:13,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:16:13,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:16:13,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:16:13,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:13,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:16:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:13,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:13,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:13,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:16:13,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:16:13,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 23:16:13,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:16:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:16:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:16:13,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:13,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:16:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:13,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:13,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:13,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:16:13,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:16:13,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:16:13,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:13,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:16:13,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:16:13,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:16:13,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:13,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 23:16:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:13,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:13,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:13,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 23:16:13,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:16:13,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 23:16:13,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:13,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 23:16:13,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 23:16:13,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 23:16:13,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:13,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-12 23:16:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:13,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:13,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:13,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 23:16:13,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:16:13,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 23:16:13,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:13,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:16:13,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 23:16:13,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:16:13,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:13,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:16:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:13,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:13,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:13,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:16:13,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:16:13,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 23:16:13,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:13,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:16:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:16:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:16:13,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:13,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:16:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:13,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:13,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:13,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:16:13,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:16:13,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:16:13,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:16:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:16:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:16:13,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 23:16:13,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022195953] [2020-10-12 23:16:13,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 23:16:13,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 23:16:13,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186216654] [2020-10-12 23:16:13,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 23:16:13,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:16:13,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 23:16:13,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 23:16:13,915 INFO L87 Difference]: Start difference. First operand 6675 states and 8997 transitions. Second operand 10 states. [2020-10-12 23:16:16,808 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2020-10-12 23:16:34,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:16:34,999 INFO L93 Difference]: Finished difference Result 14496 states and 19682 transitions. [2020-10-12 23:16:35,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 23:16:35,000 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-10-12 23:16:35,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:16:35,042 INFO L225 Difference]: With dead ends: 14496 [2020-10-12 23:16:35,043 INFO L226 Difference]: Without dead ends: 7837 [2020-10-12 23:16:35,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-10-12 23:16:35,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7837 states. [2020-10-12 23:16:36,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7837 to 6676. [2020-10-12 23:16:36,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6676 states. [2020-10-12 23:16:36,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6676 states to 6676 states and 8998 transitions. [2020-10-12 23:16:36,291 INFO L78 Accepts]: Start accepts. Automaton has 6676 states and 8998 transitions. Word has length 48 [2020-10-12 23:16:36,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:16:36,291 INFO L479 AbstractCegarLoop]: Abstraction has 6676 states and 8998 transitions. [2020-10-12 23:16:36,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 23:16:36,291 INFO L276 IsEmpty]: Start isEmpty. Operand 6676 states and 8998 transitions. [2020-10-12 23:16:36,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-12 23:16:36,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:16:36,295 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:16:36,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 23:16:36,295 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:16:36,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:16:36,296 INFO L82 PathProgramCache]: Analyzing trace with hash -546771971, now seen corresponding path program 2 times [2020-10-12 23:16:36,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:16:36,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913288444] [2020-10-12 23:16:36,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:16:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:36,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:36,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:40,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:41,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:41,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 23:16:41,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 23:16:41,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5074 [2020-10-12 23:16:41,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:41,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 23:16:41,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-12 23:16:41,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 23:16:41,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:42,118 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-12 23:16:42,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:16:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:42,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:42,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:42,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:16:42,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:16:42,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-12 23:16:42,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:42,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:16:42,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:16:42,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:16:42,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:42,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:16:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:42,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:42,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:42,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:16:42,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:16:42,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:16:42,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:42,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:16:42,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:16:42,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:16:42,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:42,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:16:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:42,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:42,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:42,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:16:42,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:16:42,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:16:42,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:42,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:16:42,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:16:42,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:16:42,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:42,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 23:16:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:42,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:42,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:42,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 23:16:42,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:16:42,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 23:16:42,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:42,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 23:16:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 23:16:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 23:16:42,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:42,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 23:16:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:42,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:42,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:42,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 23:16:42,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:16:42,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:16:42,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:16:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 23:16:42,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:16:42,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:42,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:16:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:42,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:42,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:42,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:16:42,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:16:42,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 23:16:42,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:16:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:16:42,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:16:42,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:42,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:16:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:16:42,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:16:42,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:16:42,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:16:42,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:16:42,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 23:16:42,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:16:42,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:16:42,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:16:42,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:16:42,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:16:42,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 23:16:42,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913288444] [2020-10-12 23:16:42,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 23:16:42,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 23:16:42,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060519371] [2020-10-12 23:16:42,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 23:16:42,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:16:42,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 23:16:42,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-12 23:16:42,733 INFO L87 Difference]: Start difference. First operand 6676 states and 8998 transitions. Second operand 11 states. [2020-10-12 23:16:45,590 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2020-10-12 23:17:03,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 23:17:03,939 INFO L93 Difference]: Finished difference Result 14497 states and 19683 transitions. [2020-10-12 23:17:03,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 23:17:03,940 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2020-10-12 23:17:03,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 23:17:03,983 INFO L225 Difference]: With dead ends: 14497 [2020-10-12 23:17:03,983 INFO L226 Difference]: Without dead ends: 7838 [2020-10-12 23:17:04,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2020-10-12 23:17:04,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7838 states. [2020-10-12 23:17:04,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7838 to 6677. [2020-10-12 23:17:04,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6677 states. [2020-10-12 23:17:04,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 8999 transitions. [2020-10-12 23:17:04,847 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 8999 transitions. Word has length 49 [2020-10-12 23:17:04,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 23:17:04,847 INFO L479 AbstractCegarLoop]: Abstraction has 6677 states and 8999 transitions. [2020-10-12 23:17:04,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 23:17:04,847 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 8999 transitions. [2020-10-12 23:17:04,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-12 23:17:04,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 23:17:04,849 INFO L422 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:17:04,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 23:17:04,849 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 23:17:04,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 23:17:04,850 INFO L82 PathProgramCache]: Analyzing trace with hash 67505040, now seen corresponding path program 3 times [2020-10-12 23:17:04,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 23:17:04,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197284200] [2020-10-12 23:17:04,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 23:17:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:17:05,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:17:05,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:17:07,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:17:07,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 23:17:07,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 23:17:07,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2151 [2020-10-12 23:17:07,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:17:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 23:17:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 23:17:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 23:17:07,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:17:07,857 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-12 23:17:07,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:17:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:17:07,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:17:08,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:17:08,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:17:08,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:17:08,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-12 23:17:08,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:17:08,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:17:08,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:17:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 23:17:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:17:08,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 23:17:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:17:08,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:17:08,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:17:08,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 23:17:08,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:17:08,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:17:08,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:17:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:17:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:17:08,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 23:17:08,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:17:08,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 23:17:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:17:08,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:17:08,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:17:08,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 23:17:08,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:17:08,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 23:17:08,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:17:08,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:17:08,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:17:08,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 23:17:08,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:17:08,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 23:17:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:17:08,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:17:08,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:17:08,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 23:17:08,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:17:08,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 23:17:08,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:17:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:17:08,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:17:08,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 23:17:08,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:17:08,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 23:17:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:17:08,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:17:08,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:17:08,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 23:17:08,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:17:08,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 23:17:08,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:17:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 23:17:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:17:08,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 23:17:08,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:17:08,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 23:17:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:17:08,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:17:08,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:17:08,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 23:17:08,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:17:08,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 23:17:08,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:17:08,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:17:08,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:17:08,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:17:08,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:17:08,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 23:17:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 23:17:08,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 23:17:08,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 23:17:08,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 23:17:08,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 23:17:08,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 23:17:08,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 23:17:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 23:17:08,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 23:17:08,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 23:17:08,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 23:17:08,458 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-12 23:17:08,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197284200] [2020-10-12 23:17:08,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 23:17:08,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 23:17:08,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559823482] [2020-10-12 23:17:08,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 23:17:08,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 23:17:08,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 23:17:08,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 23:17:08,460 INFO L87 Difference]: Start difference. First operand 6677 states and 8999 transitions. Second operand 7 states. [2020-10-12 23:17:11,101 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 342