/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=NARROWEST --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--can--usb--usb_8dev.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 17:53:52,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 17:53:52,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 17:53:52,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 17:53:52,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 17:53:52,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 17:53:52,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 17:53:52,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 17:53:52,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 17:53:52,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 17:53:52,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 17:53:52,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 17:53:52,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 17:53:52,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 17:53:52,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 17:53:52,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 17:53:52,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 17:53:52,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 17:53:52,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 17:53:52,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 17:53:52,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 17:53:52,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 17:53:52,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 17:53:52,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 17:53:52,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 17:53:52,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 17:53:52,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 17:53:52,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 17:53:52,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 17:53:52,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 17:53:52,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 17:53:52,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 17:53:52,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 17:53:52,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 17:53:52,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 17:53:52,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 17:53:52,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 17:53:52,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 17:53:52,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 17:53:52,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 17:53:52,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 17:53:52,683 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 [2020-10-13 17:53:52,720 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 17:53:52,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 17:53:52,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 17:53:52,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 17:53:52,723 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 17:53:52,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 17:53:52,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 17:53:52,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 17:53:52,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 17:53:52,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 17:53:52,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 17:53:52,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 17:53:52,726 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 17:53:52,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 17:53:52,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 17:53:52,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 17:53:52,727 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 17:53:52,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 17:53:52,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 17:53:52,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 17:53:52,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 17:53:52,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 17:53:52,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 17:53:52,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 17:53:52,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 17:53:52,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 17:53:52,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 17:53:52,731 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 17:53:53,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 17:53:53,099 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 17:53:53,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 17:53:53,106 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 17:53:53,107 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 17:53:53,108 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-13 17:53:53,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/820b8040b/cf80eba94b524dc6a2970bff73dbdc20/FLAGde9892654 [2020-10-13 17:53:53,844 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 17:53:53,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-13 17:53:53,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/820b8040b/cf80eba94b524dc6a2970bff73dbdc20/FLAGde9892654 [2020-10-13 17:53:54,021 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/820b8040b/cf80eba94b524dc6a2970bff73dbdc20 [2020-10-13 17:53:54,033 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 17:53:54,035 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 17:53:54,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 17:53:54,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 17:53:54,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 17:53:54,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:53:54" (1/1) ... [2020-10-13 17:53:54,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722a9cb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:53:54, skipping insertion in model container [2020-10-13 17:53:54,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:53:54" (1/1) ... [2020-10-13 17:53:54,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 17:53:54,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 17:53:55,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:53:55,967 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 17:53:56,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:53:56,715 INFO L208 MainTranslator]: Completed translation [2020-10-13 17:53:56,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:53:56 WrapperNode [2020-10-13 17:53:56,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 17:53:56,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 17:53:56,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 17:53:56,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 17:53:56,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:53:56" (1/1) ... [2020-10-13 17:53:56,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:53:56" (1/1) ... [2020-10-13 17:53:56,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:53:56" (1/1) ... [2020-10-13 17:53:56,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:53:56" (1/1) ... [2020-10-13 17:53:56,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:53:56" (1/1) ... [2020-10-13 17:53:56,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:53:56" (1/1) ... [2020-10-13 17:53:56,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:53:56" (1/1) ... [2020-10-13 17:53:56,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 17:53:56,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 17:53:56,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 17:53:56,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 17:53:56,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:53:56" (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 [2020-10-13 17:53:57,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 17:53:57,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 17:53:57,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-13 17:53:57,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-10-13 17:53:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-13 17:53:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-10-13 17:53:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-10-13 17:53:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-10-13 17:53:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-13 17:53:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-13 17:53:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-13 17:53:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-13 17:53:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-13 17:53:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-13 17:53:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-13 17:53:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2020-10-13 17:53:57,041 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-13 17:53:57,041 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 17:53:57,041 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2020-10-13 17:53:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-13 17:53:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 17:53:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 17:53:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 17:53:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 17:53:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 17:53:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 17:53:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 17:53:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 17:53:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 17:53:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 17:53:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 17:53:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 17:53:57,044 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-10-13 17:53:57,044 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-13 17:53:57,044 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-10-13 17:53:57,044 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-10-13 17:53:57,044 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-10-13 17:53:57,044 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-10-13 17:53:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-10-13 17:53:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-10-13 17:53:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2020-10-13 17:53:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dropped_invalid_skb [2020-10-13 17:53:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd_msg [2020-10-13 17:53:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_wait_cmd_msg [2020-10-13 17:53:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd [2020-10-13 17:53:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_open [2020-10-13 17:53:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_close [2020-10-13 17:53:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_version [2020-10-13 17:53:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_set_mode [2020-10-13 17:53:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_rx_err_msg [2020-10-13 17:53:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_rx_can_msg [2020-10-13 17:53:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_read_bulk_callback [2020-10-13 17:53:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_write_bulk_callback [2020-10-13 17:53:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_start_xmit [2020-10-13 17:53:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_get_berr_counter [2020-10-13 17:53:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_start [2020-10-13 17:53:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_open [2020-10-13 17:53:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2020-10-13 17:53:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_close [2020-10-13 17:53:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_probe [2020-10-13 17:53:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_disconnect [2020-10-13 17:53:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_driver_init [2020-10-13 17:53:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_driver_exit [2020-10-13 17:53:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-13 17:53:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-10-13 17:53:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 17:53:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-13 17:53:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2020-10-13 17:53:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2020-10-13 17:53:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_4 [2020-10-13 17:53:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2020-10-13 17:53:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_7 [2020-10-13 17:53:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2020-10-13 17:53:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2020-10-13 17:53:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2020-10-13 17:53:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2020-10-13 17:53:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_13 [2020-10-13 17:53:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_14 [2020-10-13 17:53:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_15 [2020-10-13 17:53:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_16 [2020-10-13 17:53:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_18 [2020-10-13 17:53:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_19 [2020-10-13 17:53:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-13 17:53:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-13 17:53:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-13 17:53:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-13 17:53:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-13 17:53:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-13 17:53:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-13 17:53:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-13 17:53:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-13 17:53:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-13 17:53:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-13 17:53:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-13 17:53:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-13 17:53:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-13 17:53:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-13 17:53:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-13 17:53:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 17:53:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-13 17:53:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-13 17:53:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-10-13 17:53:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-13 17:53:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-13 17:53:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_err_skb [2020-10-13 17:53:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_skb [2020-10-13 17:53:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_candev [2020-10-13 17:53:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure can_bus_off [2020-10-13 17:53:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2020-10-13 17:53:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_echo_skb [2020-10-13 17:53:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2020-10-13 17:53:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure can_put_echo_skb [2020-10-13 17:53:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2020-10-13 17:53:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2020-10-13 17:53:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-13 17:53:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_can_led_init [2020-10-13 17:53:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2020-10-13 17:53:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2020-10-13 17:53:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 17:53:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-10-13 17:53:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-10-13 17:53:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-13 17:53:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-13 17:53:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-10-13 17:53:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-10-13 17:53:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-10-13 17:53:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-10-13 17:53:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2020-10-13 17:53:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2020-10-13 17:53:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2020-10-13 17:53:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 17:53:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure register_candev [2020-10-13 17:53:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-10-13 17:53:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-13 17:53:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2020-10-13 17:53:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2020-10-13 17:53:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-13 17:53:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-13 17:53:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2020-10-13 17:53:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-13 17:53:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2020-10-13 17:53:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2020-10-13 17:53:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-13 17:53:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 17:53:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 17:53:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 17:53:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 17:53:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 17:53:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 17:53:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 17:53:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 17:53:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-13 17:53:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-10-13 17:53:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-13 17:53:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-10-13 17:53:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-10-13 17:53:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 17:53:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-10-13 17:53:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-13 17:53:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-13 17:53:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-13 17:53:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-13 17:53:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 17:53:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-13 17:53:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-13 17:53:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-13 17:53:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 17:53:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-13 17:53:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2020-10-13 17:53:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-13 17:53:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 17:53:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-13 17:53:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 17:53:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-13 17:53:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-13 17:53:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-13 17:53:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-13 17:53:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-13 17:53:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-13 17:53:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_16 [2020-10-13 17:53:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_15 [2020-10-13 17:53:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-13 17:53:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-13 17:53:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_18 [2020-10-13 17:53:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-13 17:53:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_19 [2020-10-13 17:53:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2020-10-13 17:53:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 17:53:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 17:53:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2020-10-13 17:53:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_4 [2020-10-13 17:53:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2020-10-13 17:53:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_7 [2020-10-13 17:53:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2020-10-13 17:53:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2020-10-13 17:53:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_13 [2020-10-13 17:53:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_14 [2020-10-13 17:53:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2020-10-13 17:53:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2020-10-13 17:53:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2020-10-13 17:53:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2020-10-13 17:53:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2020-10-13 17:53:57,067 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2020-10-13 17:53:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-13 17:53:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-13 17:53:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2020-10-13 17:53:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2020-10-13 17:53:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-13 17:53:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-13 17:53:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-13 17:53:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-13 17:53:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-13 17:53:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-13 17:53:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-13 17:53:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-13 17:53:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 17:53:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 17:53:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 17:53:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 17:53:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 17:53:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 17:53:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 17:53:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 17:53:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 17:53:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 17:53:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 17:53:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 17:53:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 17:53:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 17:53:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 17:53:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 17:53:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 17:53:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 17:53:57,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 17:53:57,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-13 17:53:57,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-10-13 17:53:57,072 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2020-10-13 17:53:57,072 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2020-10-13 17:53:57,072 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-10-13 17:53:57,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 17:53:57,072 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-13 17:53:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2020-10-13 17:53:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-10-13 17:53:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-10-13 17:53:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-10-13 17:53:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-10-13 17:53:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-10-13 17:53:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-10-13 17:53:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-10-13 17:53:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2020-10-13 17:53:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2020-10-13 17:53:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-10-13 17:53:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-10-13 17:53:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-10-13 17:53:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-10-13 17:53:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-10-13 17:53:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2020-10-13 17:53:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure devm_can_led_init [2020-10-13 17:53:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure can_dropped_invalid_skb [2020-10-13 17:53:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_candev [2020-10-13 17:53:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2020-10-13 17:53:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2020-10-13 17:53:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2020-10-13 17:53:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure register_candev [2020-10-13 17:53:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure can_bus_off [2020-10-13 17:53:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure can_put_echo_skb [2020-10-13 17:53:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_echo_skb [2020-10-13 17:53:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2020-10-13 17:53:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_skb [2020-10-13 17:53:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_err_skb [2020-10-13 17:53:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd_msg [2020-10-13 17:53:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_wait_cmd_msg [2020-10-13 17:53:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd [2020-10-13 17:53:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 17:53:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_open [2020-10-13 17:53:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 17:53:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_close [2020-10-13 17:53:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_version [2020-10-13 17:53:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_set_mode [2020-10-13 17:53:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_rx_err_msg [2020-10-13 17:53:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_rx_can_msg [2020-10-13 17:53:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_read_bulk_callback [2020-10-13 17:53:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_write_bulk_callback [2020-10-13 17:53:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_start_xmit [2020-10-13 17:53:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_get_berr_counter [2020-10-13 17:53:57,079 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_start [2020-10-13 17:53:57,079 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_open [2020-10-13 17:53:57,079 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2020-10-13 17:53:57,079 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_close [2020-10-13 17:53:57,079 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_probe [2020-10-13 17:53:57,079 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_disconnect [2020-10-13 17:53:57,079 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_driver_init [2020-10-13 17:53:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_driver_exit [2020-10-13 17:53:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-10-13 17:53:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-10-13 17:53:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 17:53:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 17:53:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 17:53:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-13 17:53:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-13 17:53:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-13 17:53:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-13 17:53:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-13 17:53:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-13 17:53:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-13 17:53:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-13 17:53:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-13 17:53:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-13 17:53:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 17:53:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 17:53:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 17:53:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 17:53:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 17:53:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 17:53:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 17:53:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 17:53:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 17:53:57,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 17:53:58,223 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 17:54:02,379 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-13 17:54:02,998 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 17:54:02,998 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 17:54:03,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:54:03 BoogieIcfgContainer [2020-10-13 17:54:03,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 17:54:03,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 17:54:03,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 17:54:03,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 17:54:03,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:53:54" (1/3) ... [2020-10-13 17:54:03,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be27a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:54:03, skipping insertion in model container [2020-10-13 17:54:03,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:53:56" (2/3) ... [2020-10-13 17:54:03,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be27a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:54:03, skipping insertion in model container [2020-10-13 17:54:03,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:54:03" (3/3) ... [2020-10-13 17:54:03,023 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-13 17:54:03,035 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 17:54:03,045 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 17:54:03,060 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 17:54:03,090 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 17:54:03,091 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 17:54:03,091 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 17:54:03,091 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 17:54:03,091 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 17:54:03,091 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 17:54:03,091 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 17:54:03,091 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 17:54:03,140 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states. [2020-10-13 17:54:03,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-13 17:54:03,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:54:03,158 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:54:03,158 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:54:03,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:54:03,164 INFO L82 PathProgramCache]: Analyzing trace with hash 228599628, now seen corresponding path program 1 times [2020-10-13 17:54:03,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:54:03,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1000635366] [2020-10-13 17:54:03,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:54:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:03,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:04,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:06,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:06,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-13 17:54:06,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:54:06,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2645 [2020-10-13 17:54:06,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:06,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:06,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-13 17:54:06,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 17:54:06,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 17:54:07,314 WARN L193 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-13 17:54:07,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:54:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:07,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:07,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:07,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:54:07,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:07,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-13 17:54:07,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:07,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:54:07,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:07,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:54:07,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:54:07,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:54:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:07,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:07,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:07,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:54:07,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:07,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 17:54:07,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:54:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:54:07,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:54:07,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:54:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:07,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:07,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:07,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:54:07,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:07,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 17:54:07,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:07,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:54:07,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:07,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:54:07,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 17:54:07,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:54:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:07,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:07,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:07,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:54:07,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:07,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:54:07,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:07,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:54:07,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:07,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:54:07,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:54:07,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 17:54:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:07,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:07,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:07,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 17:54:07,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:07,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 17:54:07,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:07,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:54:07,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 17:54:07,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:54:07,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:07,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:54:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:07,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:07,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:07,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 17:54:07,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:07,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 17:54:07,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:07,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:54:07,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:07,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:54:07,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:07,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:54:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:07,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:07,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:07,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:54:07,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:07,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:54:07,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:54:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:07,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:54:07,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:07,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 17:54:07,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1000635366] [2020-10-13 17:54:07,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:54:07,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:54:07,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283542268] [2020-10-13 17:54:07,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:54:07,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:54:07,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:54:07,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:54:07,812 INFO L87 Difference]: Start difference. First operand 996 states. Second operand 6 states. [2020-10-13 17:54:13,808 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-13 17:54:43,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:54:43,359 INFO L93 Difference]: Finished difference Result 3374 states and 4541 transitions. [2020-10-13 17:54:43,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 17:54:43,362 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-10-13 17:54:43,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:54:43,402 INFO L225 Difference]: With dead ends: 3374 [2020-10-13 17:54:43,402 INFO L226 Difference]: Without dead ends: 2387 [2020-10-13 17:54:43,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:54:43,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2020-10-13 17:54:43,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 1807. [2020-10-13 17:54:43,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1807 states. [2020-10-13 17:54:43,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2250 transitions. [2020-10-13 17:54:43,999 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2250 transitions. Word has length 45 [2020-10-13 17:54:44,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:54:44,000 INFO L479 AbstractCegarLoop]: Abstraction has 1807 states and 2250 transitions. [2020-10-13 17:54:44,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:54:44,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2250 transitions. [2020-10-13 17:54:44,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-13 17:54:44,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:54:44,006 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1] [2020-10-13 17:54:44,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 17:54:44,007 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:54:44,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:54:44,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1241958081, now seen corresponding path program 1 times [2020-10-13 17:54:44,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:54:44,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [704740423] [2020-10-13 17:54:44,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:54:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:44,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:45,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:45,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 17:54:45,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:45,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1148 [2020-10-13 17:54:45,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:54:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:54:45,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 17:54:45,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:46,033 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-13 17:54:46,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:54:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:46,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:46,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:46,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:54:46,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:46,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-10-13 17:54:46,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:46,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:46,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:46,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:54:46,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:46,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:54:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:46,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:46,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:46,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:54:46,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:46,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 17:54:46,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:46,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:46,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:46,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:54:46,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:46,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:54:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:46,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:46,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:46,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:54:46,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:46,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 17:54:46,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:46,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:46,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:46,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:54:46,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:46,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:54:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:46,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:46,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:46,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:54:46,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:46,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 17:54:46,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:46,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:46,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:46,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:54:46,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:54:46,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 17:54:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:46,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:46,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:46,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 17:54:46,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:46,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 17:54:46,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:46,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:54:46,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:46,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 17:54:46,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:46,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:54:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:46,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:46,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:46,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 17:54:46,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:46,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 17:54:46,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:46,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:54:46,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:46,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:54:46,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:46,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:54:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:46,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:46,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:46,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:54:46,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:46,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 17:54:46,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:46,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:54:46,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:46,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:54:46,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:46,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:54:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:46,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:46,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:46,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:54:46,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:46,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 17:54:46,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:46,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:54:46,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:46,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:54:46,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:46,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:54:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:54:46,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:54:46,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:54:46,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:54:46,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:54:46,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:54:46,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:54:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:54:46,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:54:46,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:54:46,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:54:46,927 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 17:54:46,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [704740423] [2020-10-13 17:54:46,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:54:46,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:54:46,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560158974] [2020-10-13 17:54:46,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:54:46,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:54:46,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:54:46,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:54:46,932 INFO L87 Difference]: Start difference. First operand 1807 states and 2250 transitions. Second operand 7 states. [2020-10-13 17:54:49,928 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2020-10-13 17:55:12,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:55:12,548 INFO L93 Difference]: Finished difference Result 6567 states and 8684 transitions. [2020-10-13 17:55:12,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 17:55:12,549 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2020-10-13 17:55:12,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:55:12,579 INFO L225 Difference]: With dead ends: 6567 [2020-10-13 17:55:12,579 INFO L226 Difference]: Without dead ends: 4774 [2020-10-13 17:55:12,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:55:12,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4774 states. [2020-10-13 17:55:13,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4774 to 3807. [2020-10-13 17:55:13,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3807 states. [2020-10-13 17:55:13,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 4822 transitions. [2020-10-13 17:55:13,483 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 4822 transitions. Word has length 61 [2020-10-13 17:55:13,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:55:13,486 INFO L479 AbstractCegarLoop]: Abstraction has 3807 states and 4822 transitions. [2020-10-13 17:55:13,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:55:13,486 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 4822 transitions. [2020-10-13 17:55:13,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-13 17:55:13,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:55:13,493 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:55:13,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 17:55:13,493 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:55:13,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:55:13,494 INFO L82 PathProgramCache]: Analyzing trace with hash -154586450, now seen corresponding path program 1 times [2020-10-13 17:55:13,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:55:13,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325199053] [2020-10-13 17:55:13,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:55:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:13,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:14,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:14,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 17:55:14,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:14,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 623 [2020-10-13 17:55:14,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:14,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:55:14,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:55:14,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 17:55:14,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:55:15,113 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-13 17:55:15,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:55:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:15,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:15,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:15,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:55:15,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:15,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-13 17:55:15,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:15,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:55:15,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:15,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:55:15,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:55:15,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:55:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:15,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:15,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:15,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:55:15,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:15,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 17:55:15,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:15,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:55:15,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:15,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:55:15,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:55:15,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:55:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:15,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:15,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:15,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:55:15,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:15,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 17:55:15,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:15,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:55:15,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:15,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:55:15,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:55:15,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:55:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:15,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:15,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:15,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:55:15,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:15,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 17:55:15,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:15,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:55:15,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:15,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:55:15,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:55:15,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 17:55:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:15,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:15,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:15,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 17:55:15,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:15,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 17:55:15,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:15,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:55:15,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 17:55:15,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:55:15,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:55:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:15,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:15,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:15,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 17:55:15,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:15,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 17:55:15,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:15,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:55:15,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:15,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:55:15,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:55:15,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:55:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:15,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:15,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:15,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:55:15,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:15,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:55:15,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:55:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:55:15,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:55:15,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:55:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:15,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:15,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:15,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:55:15,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:15,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 17:55:15,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:15,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:55:15,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:15,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:55:15,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:55:15,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:55:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:15,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:15,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:15,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:55:15,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:15,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:55:15,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:15,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:55:15,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:15,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:55:15,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:55:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 17:55:15,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325199053] [2020-10-13 17:55:15,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:55:15,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:55:15,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020521198] [2020-10-13 17:55:15,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:55:15,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:55:15,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:55:15,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:55:15,873 INFO L87 Difference]: Start difference. First operand 3807 states and 4822 transitions. Second operand 7 states. [2020-10-13 17:55:19,552 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2020-10-13 17:55:36,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:55:36,479 INFO L93 Difference]: Finished difference Result 4766 states and 6393 transitions. [2020-10-13 17:55:36,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 17:55:36,479 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-10-13 17:55:36,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:55:36,503 INFO L225 Difference]: With dead ends: 4766 [2020-10-13 17:55:36,503 INFO L226 Difference]: Without dead ends: 4763 [2020-10-13 17:55:36,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:55:36,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2020-10-13 17:55:37,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 3806. [2020-10-13 17:55:37,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3806 states. [2020-10-13 17:55:37,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 4820 transitions. [2020-10-13 17:55:37,985 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 4820 transitions. Word has length 62 [2020-10-13 17:55:37,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:55:37,989 INFO L479 AbstractCegarLoop]: Abstraction has 3806 states and 4820 transitions. [2020-10-13 17:55:37,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:55:37,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 4820 transitions. [2020-10-13 17:55:37,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-13 17:55:37,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:55:37,994 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:55:37,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 17:55:37,997 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:55:37,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:55:37,998 INFO L82 PathProgramCache]: Analyzing trace with hash -497789084, now seen corresponding path program 1 times [2020-10-13 17:55:37,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:55:37,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382818697] [2020-10-13 17:55:37,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:55:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:38,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:38,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:38,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 17:55:38,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:38,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-10-13 17:55:38,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:38,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:55:38,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:55:38,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 17:55:38,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:55:39,949 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 376 [2020-10-13 17:55:39,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:55:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:40,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:40,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:40,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:55:40,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:40,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-10-13 17:55:40,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:55:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:40,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:55:40,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:55:40,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:55:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:40,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:40,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:40,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:55:40,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:40,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 17:55:40,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:40,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:55:40,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:40,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:55:40,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:55:40,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:55:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:40,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:40,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:40,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:55:40,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:40,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 17:55:40,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:40,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:55:40,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:40,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:55:40,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:55:40,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:55:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:40,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:40,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:40,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:55:40,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:40,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 17:55:40,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:40,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:55:40,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:40,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:55:40,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:55:40,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 17:55:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:40,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:40,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:40,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 17:55:40,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:40,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 17:55:40,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:40,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:55:40,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:40,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 17:55:40,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:55:40,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:55:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:40,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:40,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:40,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 17:55:40,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:40,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 17:55:40,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:40,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:55:40,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:55:40,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:55:40,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:55:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:40,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:40,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:40,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:55:40,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:40,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 17:55:40,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:40,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:55:40,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:40,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:55:40,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:55:40,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:55:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:40,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:40,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:40,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:55:40,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:40,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 17:55:40,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:40,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:55:40,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:40,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:55:40,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:55:40,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:55:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:55:40,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:55:40,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:55:40,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:55:40,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:55:40,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:55:40,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:55:40,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:55:40,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:55:40,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:55:40,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:55:40,827 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 17:55:40,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382818697] [2020-10-13 17:55:40,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:55:40,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:55:40,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151285864] [2020-10-13 17:55:40,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:55:40,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:55:40,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:55:40,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:55:40,829 INFO L87 Difference]: Start difference. First operand 3806 states and 4820 transitions. Second operand 7 states. [2020-10-13 17:55:45,850 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-13 17:56:02,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:56:02,823 INFO L93 Difference]: Finished difference Result 4765 states and 6391 transitions. [2020-10-13 17:56:02,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 17:56:02,824 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2020-10-13 17:56:02,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:56:02,850 INFO L225 Difference]: With dead ends: 4765 [2020-10-13 17:56:02,851 INFO L226 Difference]: Without dead ends: 4762 [2020-10-13 17:56:02,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:56:02,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4762 states. [2020-10-13 17:56:03,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4762 to 3805. [2020-10-13 17:56:03,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3805 states. [2020-10-13 17:56:03,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3805 states to 3805 states and 4818 transitions. [2020-10-13 17:56:03,553 INFO L78 Accepts]: Start accepts. Automaton has 3805 states and 4818 transitions. Word has length 63 [2020-10-13 17:56:03,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:56:03,553 INFO L479 AbstractCegarLoop]: Abstraction has 3805 states and 4818 transitions. [2020-10-13 17:56:03,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:56:03,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3805 states and 4818 transitions. [2020-10-13 17:56:03,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-13 17:56:03,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:56:03,556 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:56:03,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 17:56:03,556 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:56:03,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:56:03,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1747836017, now seen corresponding path program 1 times [2020-10-13 17:56:03,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:56:03,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785595785] [2020-10-13 17:56:03,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:56:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:03,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:04,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:04,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-13 17:56:04,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:04,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-10-13 17:56:04,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:04,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:56:04,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:56:04,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 17:56:04,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:04,892 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-13 17:56:04,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:56:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:04,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:05,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:05,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:56:05,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:05,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-13 17:56:05,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:56:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:56:05,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:05,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:56:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:05,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:05,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:05,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:56:05,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:05,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:56:05,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:56:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:56:05,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:05,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:56:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:05,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:05,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:05,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:56:05,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:05,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:56:05,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:05,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:56:05,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:05,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:56:05,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:05,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:56:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:05,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:05,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:05,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:56:05,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:05,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:56:05,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:56:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:05,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:56:05,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:05,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 17:56:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:05,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:05,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:05,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 17:56:05,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:05,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 17:56:05,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:05,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:56:05,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:05,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 17:56:05,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:05,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:56:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:05,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:05,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:05,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 17:56:05,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:05,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 17:56:05,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:05,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:05,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:05,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:05,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:05,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:56:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:05,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:05,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:05,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:56:05,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:05,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:56:05,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:05,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:05,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:05,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:56:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:05,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:05,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:05,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:56:05,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:05,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 17:56:05,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:05,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:05,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:05,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:56:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:05,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:05,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:05,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:56:05,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:05,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:56:05,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:05,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:05,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:05,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:05,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:05,493 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 17:56:05,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785595785] [2020-10-13 17:56:05,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:56:05,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:56:05,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997234178] [2020-10-13 17:56:05,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:56:05,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:56:05,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:56:05,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:56:05,496 INFO L87 Difference]: Start difference. First operand 3805 states and 4818 transitions. Second operand 7 states. [2020-10-13 17:56:09,377 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-13 17:56:25,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:56:25,992 INFO L93 Difference]: Finished difference Result 4764 states and 6389 transitions. [2020-10-13 17:56:25,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 17:56:25,994 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-13 17:56:25,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:56:26,020 INFO L225 Difference]: With dead ends: 4764 [2020-10-13 17:56:26,020 INFO L226 Difference]: Without dead ends: 4761 [2020-10-13 17:56:26,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:56:26,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4761 states. [2020-10-13 17:56:26,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4761 to 3804. [2020-10-13 17:56:26,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3804 states. [2020-10-13 17:56:26,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 4816 transitions. [2020-10-13 17:56:26,865 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 4816 transitions. Word has length 64 [2020-10-13 17:56:26,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:56:26,866 INFO L479 AbstractCegarLoop]: Abstraction has 3804 states and 4816 transitions. [2020-10-13 17:56:26,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:56:26,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 4816 transitions. [2020-10-13 17:56:26,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 17:56:26,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:56:26,868 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:56:26,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 17:56:26,868 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:56:26,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:56:26,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1652225017, now seen corresponding path program 1 times [2020-10-13 17:56:26,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:56:26,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112790616] [2020-10-13 17:56:26,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:56:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:26,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:27,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:27,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 17:56:27,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:27,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-10-13 17:56:27,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:27,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:56:27,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:56:27,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 17:56:27,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:28,177 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-13 17:56:28,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:56:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:28,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:28,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:28,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:56:28,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:28,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-13 17:56:28,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:28,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:56:28,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:28,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:56:28,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:56:28,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:56:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:28,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:28,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:28,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:56:28,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:28,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 17:56:28,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:28,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:56:28,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:28,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:56:28,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:56:28,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:56:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:28,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:28,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:28,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:56:28,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:28,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 17:56:28,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:28,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:56:28,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 17:56:28,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:56:28,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:56:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:28,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:28,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:28,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:56:28,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:28,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:56:28,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:56:28,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:28,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:56:28,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:56:28,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-13 17:56:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:28,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:28,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:28,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 17:56:28,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:28,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 17:56:28,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:56:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 17:56:28,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:28,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:56:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:28,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:28,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:28,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 17:56:28,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:28,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 17:56:28,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:28,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:28,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:28,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:28,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:28,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:56:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:28,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:28,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:28,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:56:28,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:28,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:56:28,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:28,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:28,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:28,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:56:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:28,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:28,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:28,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:56:28,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:28,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 17:56:28,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:28,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:28,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:28,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:28,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:28,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:56:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:28,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:28,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:28,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:56:28,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:28,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:56:28,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:28,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:28,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:28,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:28,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:28,963 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 17:56:28,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112790616] [2020-10-13 17:56:28,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:56:28,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:56:28,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510446612] [2020-10-13 17:56:28,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:56:28,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:56:28,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:56:28,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:56:28,965 INFO L87 Difference]: Start difference. First operand 3804 states and 4816 transitions. Second operand 7 states. [2020-10-13 17:56:32,971 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-13 17:56:49,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:56:49,662 INFO L93 Difference]: Finished difference Result 4763 states and 6387 transitions. [2020-10-13 17:56:49,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 17:56:49,663 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-10-13 17:56:49,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:56:49,687 INFO L225 Difference]: With dead ends: 4763 [2020-10-13 17:56:49,687 INFO L226 Difference]: Without dead ends: 4738 [2020-10-13 17:56:49,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-13 17:56:49,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4738 states. [2020-10-13 17:56:50,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4738 to 3784. [2020-10-13 17:56:50,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3784 states. [2020-10-13 17:56:50,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 4792 transitions. [2020-10-13 17:56:50,349 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 4792 transitions. Word has length 65 [2020-10-13 17:56:50,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:56:50,349 INFO L479 AbstractCegarLoop]: Abstraction has 3784 states and 4792 transitions. [2020-10-13 17:56:50,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:56:50,349 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 4792 transitions. [2020-10-13 17:56:50,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-13 17:56:50,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:56:50,355 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:56:50,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 17:56:50,355 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:56:50,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:56:50,355 INFO L82 PathProgramCache]: Analyzing trace with hash -2054591072, now seen corresponding path program 1 times [2020-10-13 17:56:50,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:56:50,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816621992] [2020-10-13 17:56:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:56:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:50,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:50,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:50,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:50,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:55,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:55,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-13 17:56:55,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:56:55,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-10-13 17:56:55,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:56:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-13 17:56:55,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:56:55,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:56,249 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-13 17:56:56,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:56:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:56,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:56,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:56,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:56:56,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:56,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 17:56:56,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:56,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:56,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:56,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:56,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:56,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:56:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:56,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:56,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:56,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:56:56,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:56,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:56:56,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:56,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:56,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:56,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 17:56:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:56,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:56,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:56,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:56:56,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 17:56:56,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:56,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:56:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:56,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:56,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:56,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 17:56:56,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:56,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:56:56,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:56,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:56,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 17:56:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:56,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:56,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:56,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:59,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 17:56:59,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:56:59,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2632 [2020-10-13 17:56:59,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 17:56:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-13 17:56:59,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:56:59,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:59,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:56:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:59,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:59,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:56:59,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:59,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 17:56:59,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:59,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:59,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:59,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:59,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:56:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:59,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:59,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 17:56:59,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:59,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 17:56:59,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:59,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 17:56:59,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:59,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 17:56:59,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:59,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 17:56:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:59,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:59,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:56:59,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:59,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:56:59,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:59,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:59,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:59,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:59,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:59,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 17:56:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:59,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:59,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 17:56:59,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:56:59,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 17:56:59,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:59,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:59,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-13 17:56:59,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:59,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:59,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:56:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:59,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:59,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 17:56:59,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:56:59,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 17:56:59,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:59,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:59,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:59,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:59,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:59,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:56:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:59,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:59,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:56:59,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:59,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:56:59,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:59,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:59,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:59,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:56:59,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 17:56:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:59,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:59,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:56:59,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:59,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:56:59,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:59,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:59,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:59,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:59,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:59,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 17:56:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:59,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:59,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:56:59,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:59,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:56:59,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:59,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:59,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:56:59,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:59,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:59,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-13 17:56:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:59,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:59,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 17:56:59,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:59,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 17:56:59,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:59,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:59,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 17:56:59,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:59,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:59,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:56:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:59,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:59,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 17:56:59,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:59,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 17:56:59,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:59,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:59,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:59,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:56:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:59,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:59,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:56:59,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:59,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:56:59,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:59,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:59,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:59,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:59,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:59,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:56:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:59,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:59,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 17:56:59,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:59,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 17:56:59,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:59,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:59,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:59,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:59,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:59,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:56:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:56:59,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:56:59,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:56:59,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 17:56:59,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:56:59,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:56:59,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:56:59,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:56:59,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:56:59,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:56:59,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:56:59,877 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 17:56:59,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816621992] [2020-10-13 17:56:59,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:56:59,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 17:56:59,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974014342] [2020-10-13 17:56:59,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 17:56:59,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:56:59,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 17:56:59,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 17:56:59,880 INFO L87 Difference]: Start difference. First operand 3784 states and 4792 transitions. Second operand 13 states. [2020-10-13 17:57:24,801 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 380