/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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--sja1000--sja1000.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 19:24:23,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 19:24:23,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 19:24:23,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 19:24:23,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 19:24:23,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 19:24:23,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 19:24:23,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 19:24:23,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 19:24:23,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 19:24:23,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 19:24:23,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 19:24:23,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 19:24:23,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 19:24:23,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 19:24:23,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 19:24:23,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 19:24:23,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 19:24:23,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 19:24:23,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 19:24:23,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 19:24:23,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 19:24:23,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 19:24:23,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 19:24:23,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 19:24:23,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 19:24:23,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 19:24:23,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 19:24:23,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 19:24:23,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 19:24:23,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 19:24:23,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 19:24:23,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 19:24:23,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 19:24:23,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 19:24:23,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 19:24:23,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 19:24:23,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 19:24:23,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 19:24:23,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 19:24:23,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 19:24:23,626 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 19:24:23,646 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 19:24:23,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 19:24:23,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 19:24:23,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 19:24:23,648 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 19:24:23,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 19:24:23,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 19:24:23,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 19:24:23,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 19:24:23,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 19:24:23,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 19:24:23,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 19:24:23,650 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 19:24:23,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 19:24:23,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 19:24:23,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 19:24:23,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 19:24:23,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 19:24:23,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 19:24:23,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 19:24:23,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 19:24:23,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 19:24:23,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 19:24:23,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 19:24:23,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 19:24:23,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 19:24:23,653 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 19:24:23,653 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 19:24:23,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 19:24:23,973 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 19:24:23,976 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 19:24:23,978 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 19:24:23,978 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 19:24:23,979 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--sja1000--sja1000.ko-entry_point.cil.out.i [2020-10-13 19:24:24,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c90a368ad/8f45b9ccc3d449b48b7cbdd89a6b883a/FLAG2e4702f8c [2020-10-13 19:24:24,836 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 19:24:24,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--sja1000--sja1000.ko-entry_point.cil.out.i [2020-10-13 19:24:24,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c90a368ad/8f45b9ccc3d449b48b7cbdd89a6b883a/FLAG2e4702f8c [2020-10-13 19:24:24,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c90a368ad/8f45b9ccc3d449b48b7cbdd89a6b883a [2020-10-13 19:24:24,940 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 19:24:24,943 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 19:24:24,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 19:24:24,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 19:24:24,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 19:24:24,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:24:24" (1/1) ... [2020-10-13 19:24:24,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e1313c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:24:24, skipping insertion in model container [2020-10-13 19:24:24,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:24:24" (1/1) ... [2020-10-13 19:24:24,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 19:24:25,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 19:24:26,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 19:24:26,813 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 19:24:27,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 19:24:27,727 INFO L208 MainTranslator]: Completed translation [2020-10-13 19:24:27,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:24:27 WrapperNode [2020-10-13 19:24:27,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 19:24:27,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 19:24:27,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 19:24:27,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 19:24:27,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:24:27" (1/1) ... [2020-10-13 19:24:27,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:24:27" (1/1) ... [2020-10-13 19:24:27,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:24:27" (1/1) ... [2020-10-13 19:24:27,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:24:27" (1/1) ... [2020-10-13 19:24:27,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:24:27" (1/1) ... [2020-10-13 19:24:27,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:24:27" (1/1) ... [2020-10-13 19:24:27,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:24:27" (1/1) ... [2020-10-13 19:24:28,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 19:24:28,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 19:24:28,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 19:24:28,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 19:24:28,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:24:27" (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 19:24:28,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 19:24:28,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 19:24:28,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~~u8~0~TO~VOID [2020-10-13 19:24:28,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~~u8~0 [2020-10-13 19:24:28,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-13 19:24:28,085 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-13 19:24:28,086 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-13 19:24:28,086 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-13 19:24:28,086 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-13 19:24:28,088 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 19:24:28,089 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-13 19:24:28,089 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 19:24:28,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 19:24:28,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 19:24:28,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 19:24:28,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 19:24:28,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 19:24:28,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 19:24:28,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 19:24:28,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 19:24:28,096 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-13 19:24:28,096 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-10-13 19:24:28,096 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-13 19:24:28,096 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-10-13 19:24:28,097 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-10-13 19:24:28,097 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-10-13 19:24:28,097 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-10-13 19:24:28,098 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-10-13 19:24:28,098 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-10-13 19:24:28,098 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2020-10-13 19:24:28,098 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2020-10-13 19:24:28,098 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dropped_invalid_skb [2020-10-13 19:24:28,098 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_write_cmdreg [2020-10-13 19:24:28,099 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_is_absent [2020-10-13 19:24:28,099 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_probe_chip [2020-10-13 19:24:28,099 INFO L138 BoogieDeclarations]: Found implementation of procedure set_reset_mode [2020-10-13 19:24:28,099 INFO L138 BoogieDeclarations]: Found implementation of procedure set_normal_mode [2020-10-13 19:24:28,099 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_start [2020-10-13 19:24:28,099 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_set_mode [2020-10-13 19:24:28,099 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_set_bittiming [2020-10-13 19:24:28,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_get_berr_counter [2020-10-13 19:24:28,100 INFO L138 BoogieDeclarations]: Found implementation of procedure chipset_init [2020-10-13 19:24:28,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_start_xmit [2020-10-13 19:24:28,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_rx [2020-10-13 19:24:28,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_err [2020-10-13 19:24:28,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_interrupt [2020-10-13 19:24:28,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_open [2020-10-13 19:24:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_close [2020-10-13 19:24:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_sja1000dev [2020-10-13 19:24:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure free_sja1000dev [2020-10-13 19:24:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sja1000dev [2020-10-13 19:24:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sja1000dev [2020-10-13 19:24:28,102 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_init [2020-10-13 19:24:28,102 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_exit [2020-10-13 19:24:28,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-10-13 19:24:28,103 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-10-13 19:24:28,103 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-10-13 19:24:28,103 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-10-13 19:24:28,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-10-13 19:24:28,103 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-10-13 19:24:28,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 19:24:28,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-13 19:24:28,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-13 19:24:28,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-13 19:24:28,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-13 19:24:28,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-13 19:24:28,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_12 [2020-10-13 19:24:28,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-10-13 19:24:28,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_14 [2020-10-13 19:24:28,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_15 [2020-10-13 19:24:28,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_16 [2020-10-13 19:24:28,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-13 19:24:28,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-13 19:24:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-13 19:24:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-13 19:24:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-13 19:24:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 19:24:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-13 19:24:28,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-13 19:24:28,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-13 19:24:28,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-13 19:24:28,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 19:24:28,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-13 19:24:28,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-13 19:24:28,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-13 19:24:28,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-13 19:24:28,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-13 19:24:28,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 19:24:28,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-13 19:24:28,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2020-10-13 19:24:28,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-10-13 19:24:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-13 19:24:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-13 19:24:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-13 19:24:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_err_skb [2020-10-13 19:24:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_skb [2020-10-13 19:24:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_candev [2020-10-13 19:24:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure can_bus_off [2020-10-13 19:24:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure can_change_mtu [2020-10-13 19:24:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2020-10-13 19:24:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_echo_skb [2020-10-13 19:24:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2020-10-13 19:24:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure can_put_echo_skb [2020-10-13 19:24:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2020-10-13 19:24:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_can_led_init [2020-10-13 19:24:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2020-10-13 19:24:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-13 19:24:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-10-13 19:24:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-10-13 19:24:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-10-13 19:24:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-10-13 19:24:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-10-13 19:24:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2020-10-13 19:24:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 19:24:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure register_candev [2020-10-13 19:24:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-13 19:24:28,116 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_candev [2020-10-13 19:24:28,116 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-13 19:24:28,116 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 19:24:28,116 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 19:24:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 19:24:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 19:24:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-13 19:24:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-13 19:24:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-13 19:24:28,118 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-13 19:24:28,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 19:24:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 19:24:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2020-10-13 19:24:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-13 19:24:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-13 19:24:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-13 19:24:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-13 19:24:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 19:24:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-13 19:24:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-13 19:24:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-13 19:24:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-13 19:24:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-13 19:24:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_12 [2020-10-13 19:24:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-13 19:24:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-13 19:24:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-13 19:24:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 19:24:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 19:24:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 19:24:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 19:24:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 19:24:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 19:24:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 19:24:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 19:24:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 19:24:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 19:24:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 19:24:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 19:24:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 19:24:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 19:24:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 19:24:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-10-13 19:24:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-10-13 19:24:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-10-13 19:24:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-10-13 19:24:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-10-13 19:24:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-10-13 19:24:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-13 19:24:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-13 19:24:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_15 [2020-10-13 19:24:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-13 19:24:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_16 [2020-10-13 19:24:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-13 19:24:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-10-13 19:24:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 19:24:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-13 19:24:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-10-13 19:24:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-10-13 19:24:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-10-13 19:24:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-10-13 19:24:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-10-13 19:24:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-10-13 19:24:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 19:24:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-10-13 19:24:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2020-10-13 19:24:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2020-10-13 19:24:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-10-13 19:24:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_14 [2020-10-13 19:24:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-10-13 19:24:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-10-13 19:24:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-10-13 19:24:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2020-10-13 19:24:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure devm_can_led_init [2020-10-13 19:24:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure can_dropped_invalid_skb [2020-10-13 19:24:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 19:24:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_candev [2020-10-13 19:24:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2020-10-13 19:24:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2020-10-13 19:24:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2020-10-13 19:24:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure can_change_mtu [2020-10-13 19:24:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure register_candev [2020-10-13 19:24:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_candev [2020-10-13 19:24:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure can_bus_off [2020-10-13 19:24:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure can_put_echo_skb [2020-10-13 19:24:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_echo_skb [2020-10-13 19:24:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2020-10-13 19:24:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_skb [2020-10-13 19:24:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_err_skb [2020-10-13 19:24:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_sja1000dev [2020-10-13 19:24:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure free_sja1000dev [2020-10-13 19:24:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure register_sja1000dev [2020-10-13 19:24:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sja1000dev [2020-10-13 19:24:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_interrupt [2020-10-13 19:24:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_write_cmdreg [2020-10-13 19:24:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~~u8~0~TO~VOID [2020-10-13 19:24:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~~u8~0 [2020-10-13 19:24:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_is_absent [2020-10-13 19:24:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_probe_chip [2020-10-13 19:24:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure set_reset_mode [2020-10-13 19:24:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure set_normal_mode [2020-10-13 19:24:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_start [2020-10-13 19:24:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_set_mode [2020-10-13 19:24:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_set_bittiming [2020-10-13 19:24:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_get_berr_counter [2020-10-13 19:24:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure chipset_init [2020-10-13 19:24:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_start_xmit [2020-10-13 19:24:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_rx [2020-10-13 19:24:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 19:24:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_err [2020-10-13 19:24:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 19:24:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-13 19:24:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_open [2020-10-13 19:24:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_close [2020-10-13 19:24:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_init [2020-10-13 19:24:28,146 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_exit [2020-10-13 19:24:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-10-13 19:24:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 19:24:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-10-13 19:24:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 19:24:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 19:24:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-13 19:24:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-13 19:24:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-13 19:24:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-13 19:24:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-13 19:24:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 19:24:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-13 19:24:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-13 19:24:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-13 19:24:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-13 19:24:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-13 19:24:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-13 19:24:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-13 19:24:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 19:24:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 19:24:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 19:24:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 19:24:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 19:24:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 19:24:28,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 19:24:28,936 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 19:24:31,142 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 19:24:31,142 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-13 19:24:31,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:24:31 BoogieIcfgContainer [2020-10-13 19:24:31,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 19:24:31,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 19:24:31,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 19:24:31,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 19:24:31,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:24:24" (1/3) ... [2020-10-13 19:24:31,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c9a917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:24:31, skipping insertion in model container [2020-10-13 19:24:31,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:24:27" (2/3) ... [2020-10-13 19:24:31,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c9a917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:24:31, skipping insertion in model container [2020-10-13 19:24:31,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:24:31" (3/3) ... [2020-10-13 19:24:31,162 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--sja1000--sja1000.ko-entry_point.cil.out.i [2020-10-13 19:24:31,174 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 19:24:31,185 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 19:24:31,202 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 19:24:31,232 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 19:24:31,232 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 19:24:31,232 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 19:24:31,232 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 19:24:31,233 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 19:24:31,233 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 19:24:31,233 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 19:24:31,233 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 19:24:31,273 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states. [2020-10-13 19:24:31,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-13 19:24:31,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:24:31,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:24:31,288 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:24:31,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:24:31,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1805371821, now seen corresponding path program 1 times [2020-10-13 19:24:31,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:24:31,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754120937] [2020-10-13 19:24:31,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:24:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:24:32,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:24:32,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:24:34,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:24:34,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 19:24:34,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 19:24:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2980 [2020-10-13 19:24:34,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:24:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:24:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 19:24:34,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 19:24:34,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 19:24:35,976 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 421 [2020-10-13 19:24:35,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:24:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:24:36,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:24:36,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:24:36,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:24:36,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:24:36,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-13 19:24:36,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:24:36,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:24:36,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:24:36,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:24:36,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:24:36,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:24:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:24:36,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:24:36,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:24:36,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:24:36,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:24:36,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 19:24:36,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:24:36,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:24:36,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:24:36,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:24:36,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:24:36,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:24:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:24:36,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:24:36,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:24:36,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:24:36,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:24:36,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 19:24:36,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:24:36,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:24:36,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:24:36,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:24:36,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:24:36,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:24:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:24:36,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:24:36,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:24:36,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:24:36,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:24:36,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:24:36,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:24:36,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:24:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:24:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:24:36,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:24:36,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-13 19:24:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:24:36,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:24:36,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:24:36,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:24:36,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:24:36,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:24:36,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:24:36,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:24:36,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:24:36,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:24:36,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:24:36,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 19:24:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:24:36,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:24:36,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:24:36,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:24:36,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:24:36,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 19:24:36,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:24:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:24:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:24:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:24:36,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:24:36,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 19:24:36,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754120937] [2020-10-13 19:24:36,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:24:36,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 19:24:36,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846376868] [2020-10-13 19:24:36,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 19:24:36,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:24:36,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 19:24:36,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 19:24:36,444 INFO L87 Difference]: Start difference. First operand 836 states. Second operand 6 states. [2020-10-13 19:24:37,409 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 424 [2020-10-13 19:24:38,926 WARN L193 SmtUtils]: Spent 911.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2020-10-13 19:24:39,881 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 423 [2020-10-13 19:25:02,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:25:02,454 INFO L93 Difference]: Finished difference Result 2677 states and 3708 transitions. [2020-10-13 19:25:02,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 19:25:02,456 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-10-13 19:25:02,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:25:02,503 INFO L225 Difference]: With dead ends: 2677 [2020-10-13 19:25:02,503 INFO L226 Difference]: Without dead ends: 1957 [2020-10-13 19:25:02,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 19:25:02,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1957 states. [2020-10-13 19:25:02,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1957 to 1324. [2020-10-13 19:25:02,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1324 states. [2020-10-13 19:25:03,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1725 transitions. [2020-10-13 19:25:03,010 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1725 transitions. Word has length 41 [2020-10-13 19:25:03,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:25:03,011 INFO L479 AbstractCegarLoop]: Abstraction has 1324 states and 1725 transitions. [2020-10-13 19:25:03,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 19:25:03,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1725 transitions. [2020-10-13 19:25:03,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-13 19:25:03,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:25:03,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:25:03,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 19:25:03,023 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:25:03,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:25:03,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1889945840, now seen corresponding path program 1 times [2020-10-13 19:25:03,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:25:03,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950912002] [2020-10-13 19:25:03,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:25:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:03,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:03,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:04,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:07,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:07,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 19:25:07,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 19:25:07,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4160 [2020-10-13 19:25:07,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:07,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 19:25:07,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 19:25:07,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 19:25:07,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:08,171 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 421 [2020-10-13 19:25:08,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:25:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:08,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:08,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:08,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:25:08,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:08,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-13 19:25:08,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:08,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:25:08,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:25:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:08,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:08,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:08,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:25:08,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:08,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 19:25:08,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:08,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:08,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:08,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:08,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:08,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:25:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:08,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:08,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:08,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:25:08,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:08,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 19:25:08,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:08,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:08,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:08,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:08,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:08,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:25:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:08,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:08,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:08,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:25:08,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:08,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 19:25:08,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:08,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:08,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 19:25:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:08,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:08,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:08,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:25:08,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:08,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 19:25:08,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:08,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 19:25:08,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:08,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 19:25:08,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:08,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 19:25:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:08,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:08,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:08,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:25:08,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:08,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:25:08,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:08,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:08,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:25:08,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:08,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:08,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 19:25:08,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [950912002] [2020-10-13 19:25:08,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:25:08,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 19:25:08,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429260698] [2020-10-13 19:25:08,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 19:25:08,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:25:08,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 19:25:08,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 19:25:08,628 INFO L87 Difference]: Start difference. First operand 1324 states and 1725 transitions. Second operand 8 states. [2020-10-13 19:25:09,434 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 424 [2020-10-13 19:25:10,814 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 427 [2020-10-13 19:25:11,828 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 424 [2020-10-13 19:25:13,232 WARN L193 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 430 [2020-10-13 19:25:26,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:25:26,334 INFO L93 Difference]: Finished difference Result 3252 states and 4371 transitions. [2020-10-13 19:25:26,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 19:25:26,335 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44 [2020-10-13 19:25:26,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:25:26,348 INFO L225 Difference]: With dead ends: 3252 [2020-10-13 19:25:26,348 INFO L226 Difference]: Without dead ends: 1955 [2020-10-13 19:25:26,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-13 19:25:26,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states. [2020-10-13 19:25:26,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1323. [2020-10-13 19:25:26,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1323 states. [2020-10-13 19:25:26,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1721 transitions. [2020-10-13 19:25:26,654 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1721 transitions. Word has length 44 [2020-10-13 19:25:26,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:25:26,654 INFO L479 AbstractCegarLoop]: Abstraction has 1323 states and 1721 transitions. [2020-10-13 19:25:26,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 19:25:26,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1721 transitions. [2020-10-13 19:25:26,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 19:25:26,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:25:26,658 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:25:26,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 19:25:26,658 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:25:26,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:25:26,659 INFO L82 PathProgramCache]: Analyzing trace with hash -49498990, now seen corresponding path program 1 times [2020-10-13 19:25:26,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:25:26,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839979831] [2020-10-13 19:25:26,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:25:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:26,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:27,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:27,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 19:25:27,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:27,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1103 [2020-10-13 19:25:27,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:27,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 19:25:27,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 19:25:27,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 19:25:27,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:28,781 WARN L193 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 421 [2020-10-13 19:25:28,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:25:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:28,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:28,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:28,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:25:28,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:28,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 19:25:28,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:28,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:28,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:28,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:28,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:28,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:25:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:28,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:28,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:28,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:25:28,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:28,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:25:28,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:28,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:28,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:28,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:28,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:28,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:25:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:28,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:29,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:29,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:25:29,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:29,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 19:25:29,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:29,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:25:29,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:29,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 19:25:29,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:29,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:25:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:29,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:29,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:29,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:25:29,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:29,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:25:29,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:29,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:25:29,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:29,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 19:25:29,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:29,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 19:25:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:29,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:29,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:29,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:25:29,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:29,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:25:29,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:29,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:25:29,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:29,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 19:25:29,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:29,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 19:25:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:29,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:29,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:29,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:25:29,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:29,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 19:25:29,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:25:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 19:25:29,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:29,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:25:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:29,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:29,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:29,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:25:29,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:29,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 19:25:29,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:29,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:25:29,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:29,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:25:29,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:29,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 19:25:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:29,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:29,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:29,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:25:29,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:29,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:25:29,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:29,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:25:29,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:29,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 19:25:29,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:29,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 19:25:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:25:29,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:25:29,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:25:29,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:25:29,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:25:29,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 19:25:29,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:25:29,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 19:25:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:25:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 19:25:29,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:25:29,216 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 19:25:29,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839979831] [2020-10-13 19:25:29,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:25:29,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 19:25:29,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952878307] [2020-10-13 19:25:29,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 19:25:29,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:25:29,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 19:25:29,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-13 19:25:29,219 INFO L87 Difference]: Start difference. First operand 1323 states and 1721 transitions. Second operand 10 states. [2020-10-13 19:25:30,047 WARN L193 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 424 [2020-10-13 19:25:31,436 WARN L193 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2020-10-13 19:25:32,399 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 423 [2020-10-13 19:25:35,911 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 434 DAG size of output: 429 [2020-10-13 19:25:36,845 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2020-10-13 19:25:37,702 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2020-10-13 19:25:41,137 WARN L193 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 434 [2020-10-13 19:26:01,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:26:01,116 INFO L93 Difference]: Finished difference Result 3561 states and 4883 transitions. [2020-10-13 19:26:01,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 19:26:01,117 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2020-10-13 19:26:01,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:26:01,138 INFO L225 Difference]: With dead ends: 3561 [2020-10-13 19:26:01,138 INFO L226 Difference]: Without dead ends: 3542 [2020-10-13 19:26:01,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-10-13 19:26:01,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3542 states. [2020-10-13 19:26:01,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3542 to 2829. [2020-10-13 19:26:01,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2829 states. [2020-10-13 19:26:01,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 3767 transitions. [2020-10-13 19:26:01,782 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 3767 transitions. Word has length 65 [2020-10-13 19:26:01,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:26:01,782 INFO L479 AbstractCegarLoop]: Abstraction has 2829 states and 3767 transitions. [2020-10-13 19:26:01,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 19:26:01,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 3767 transitions. [2020-10-13 19:26:01,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-13 19:26:01,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:26:01,793 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:26:01,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 19:26:01,793 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:26:01,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:26:01,794 INFO L82 PathProgramCache]: Analyzing trace with hash 219303693, now seen corresponding path program 1 times [2020-10-13 19:26:01,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:26:01,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1947143428] [2020-10-13 19:26:01,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:26:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:01,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:02,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:02,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:03,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:03,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-13 19:26:03,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 19:26:03,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1859 [2020-10-13 19:26:03,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:03,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:26:03,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 19:26:03,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 19:26:03,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:04,548 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 421 [2020-10-13 19:26:04,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:26:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:04,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:04,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:04,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:04,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:04,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 19:26:04,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:04,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:04,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:04,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:04,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:04,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:26:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:04,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:04,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:04,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:26:04,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:04,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:26:04,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:04,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:04,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:26:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:04,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:04,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:04,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:26:04,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:04,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:26:04,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:04,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:04,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:04,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:04,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:04,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:26:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:04,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:04,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:04,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:04,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:04,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:26:04,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:04,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:04,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:04,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:04,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 19:26:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:04,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:04,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:04,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 19:26:04,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:04,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 19:26:04,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:04,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:26:04,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 19:26:04,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 19:26:04,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:04,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:26:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:04,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:04,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:04,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:04,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:04,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:26:04,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:04,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:04,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:04,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:04,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:04,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:26:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:04,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:04,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:04,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 19:26:04,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:04,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 19:26:04,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:04,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:26:04,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 19:26:04,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 19:26:04,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:04,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 19:26:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:04,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:04,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:04,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 19:26:04,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:04,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 19:26:04,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:04,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:26:04,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 19:26:04,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 19:26:04,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:04,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:26:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:04,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:04,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:04,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 19:26:04,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:04,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 19:26:04,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:04,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:26:04,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 19:26:04,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 19:26:04,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:04,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:26:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:04,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:05,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:05,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 19:26:05,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:05,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 19:26:05,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:05,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:26:05,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 19:26:05,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 19:26:05,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:26:05,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 19:26:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:05,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:05,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:05,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:05,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:05,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:26:05,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:05,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:05,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:26:05,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:05,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:05,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 19:26:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:05,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:05,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:05,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:26:05,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:05,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:26:05,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:05,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:05,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 19:26:05,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:05,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:05,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:26:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:05,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:05,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:05,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:26:05,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:05,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:26:05,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:05,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:05,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:05,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:05,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:05,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 19:26:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:05,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:05,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:05,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:05,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:05,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:26:05,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:05,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:05,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:26:05,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:05,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:05,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 19:26:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:05,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:05,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:05,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:05,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:05,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:26:05,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:05,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:05,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:26:05,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:05,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:05,859 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 19:26:05,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1947143428] [2020-10-13 19:26:05,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:26:05,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 19:26:05,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526090699] [2020-10-13 19:26:05,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 19:26:05,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:26:05,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 19:26:05,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-13 19:26:05,862 INFO L87 Difference]: Start difference. First operand 2829 states and 3767 transitions. Second operand 8 states. [2020-10-13 19:26:06,657 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 424 [2020-10-13 19:26:10,387 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2020-10-13 19:26:24,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:26:24,398 INFO L93 Difference]: Finished difference Result 5332 states and 7415 transitions. [2020-10-13 19:26:24,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 19:26:24,399 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 112 [2020-10-13 19:26:24,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:26:24,421 INFO L225 Difference]: With dead ends: 5332 [2020-10-13 19:26:24,421 INFO L226 Difference]: Without dead ends: 3802 [2020-10-13 19:26:24,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-13 19:26:24,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2020-10-13 19:26:25,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 2833. [2020-10-13 19:26:25,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2833 states. [2020-10-13 19:26:25,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 3771 transitions. [2020-10-13 19:26:25,341 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 3771 transitions. Word has length 112 [2020-10-13 19:26:25,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:26:25,342 INFO L479 AbstractCegarLoop]: Abstraction has 2833 states and 3771 transitions. [2020-10-13 19:26:25,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 19:26:25,342 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 3771 transitions. [2020-10-13 19:26:25,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-13 19:26:25,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:26:25,349 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:26:25,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 19:26:25,350 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:26:25,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:26:25,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1424782572, now seen corresponding path program 1 times [2020-10-13 19:26:25,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:26:25,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1916999938] [2020-10-13 19:26:25,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:26:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:25,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:25,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:25,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:26,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:30,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:30,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 19:26:30,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 19:26:30,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-13 19:26:30,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:30,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:26:30,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 19:26:30,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 19:26:30,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,381 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 421 [2020-10-13 19:26:31,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:26:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:31,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 19:26:31,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:31,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:26:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:26:31,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:26:31,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:31,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:26:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:26:31,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:26:31,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:31,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:26:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:31,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 19:26:31,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:31,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 19:26:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 19:26:31,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 19:26:31,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-13 19:26:31,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:26:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:31,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:26:31,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:31,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:26:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 19:26:31,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 19:26:31,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:31,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 19:26:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 19:26:31,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 19:26:31,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:26:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 19:26:31,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 19:26:31,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:26:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:26:31,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:26:31,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:31,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 19:26:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:31,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:26:31,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:26:31,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 19:26:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:26:31,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:26:31,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 19:26:31,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:26:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:26:31,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 19:26:31,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:26:31,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 19:26:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:31,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:26:31,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:26:31,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 19:26:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:31,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:31,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:26:31,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:26:31,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:26:31,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:26:31,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:26:31,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:26:31,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:26:31,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:26:31,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:26:31,889 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 19:26:31,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1916999938] [2020-10-13 19:26:31,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:26:31,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 19:26:31,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346115382] [2020-10-13 19:26:31,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 19:26:31,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:26:31,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 19:26:31,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-13 19:26:31,892 INFO L87 Difference]: Start difference. First operand 2833 states and 3771 transitions. Second operand 8 states. [2020-10-13 19:26:32,739 WARN L193 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 424 [2020-10-13 19:26:34,045 WARN L193 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2020-10-13 19:26:34,996 WARN L193 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 423 [2020-10-13 19:26:55,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:26:55,531 INFO L93 Difference]: Finished difference Result 8632 states and 11780 transitions. [2020-10-13 19:26:55,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 19:26:55,532 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 114 [2020-10-13 19:26:55,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:26:55,564 INFO L225 Difference]: With dead ends: 8632 [2020-10-13 19:26:55,564 INFO L226 Difference]: Without dead ends: 5826 [2020-10-13 19:26:55,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2020-10-13 19:26:55,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5826 states. [2020-10-13 19:26:56,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5826 to 4423. [2020-10-13 19:26:56,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4423 states. [2020-10-13 19:26:56,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4423 states to 4423 states and 5882 transitions. [2020-10-13 19:26:56,407 INFO L78 Accepts]: Start accepts. Automaton has 4423 states and 5882 transitions. Word has length 114 [2020-10-13 19:26:56,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:26:56,407 INFO L479 AbstractCegarLoop]: Abstraction has 4423 states and 5882 transitions. [2020-10-13 19:26:56,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 19:26:56,407 INFO L276 IsEmpty]: Start isEmpty. Operand 4423 states and 5882 transitions. [2020-10-13 19:26:56,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-13 19:26:56,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:26:56,415 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:26:56,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 19:26:56,416 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:26:56,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:26:56,416 INFO L82 PathProgramCache]: Analyzing trace with hash 995387330, now seen corresponding path program 2 times [2020-10-13 19:26:56,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:26:56,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813971767] [2020-10-13 19:26:56,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:26:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:26:56,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:56,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:26:56,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:01,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:01,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 19:27:01,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 19:27:01,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-13 19:27:01,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:01,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:27:01,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-13 19:27:01,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 19:27:01,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:02,567 WARN L193 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 421 [2020-10-13 19:27:02,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:27:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:02,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:02,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:02,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:02,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:02,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 19:27:02,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:02,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:02,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:02,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:02,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:02,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:27:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:02,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:02,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:02,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:27:02,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:02,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:27:02,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:02,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:02,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:02,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:02,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:02,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:27:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:02,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:02,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:02,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:27:02,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:02,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:27:02,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:02,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:02,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:02,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:02,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:02,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:27:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:02,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:02,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:02,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:02,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:02,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:27:02,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:02,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:02,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:02,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:02,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 19:27:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:02,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:02,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:02,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:02,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:02,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:27:02,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:02,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:02,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:02,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:02,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:02,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 19:27:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:02,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:02,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:02,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:27:02,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:02,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 19:27:02,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:02,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:27:02,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:02,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 19:27:02,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:02,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:02,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:02,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:02,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:27:02,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:02,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:27:02,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:02,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:02,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:02,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 19:27:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:02,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:02,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:02,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 19:27:02,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:02,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 19:27:02,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:02,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:02,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-13 19:27:02,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:02,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:02,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:02,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:02,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:02,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:02,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:02,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:27:02,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:02,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:02,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:02,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:02,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:02,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:27:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:02,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:02,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:02,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 19:27:02,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:02,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 19:27:02,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:02,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:02,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:02,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:02,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:02,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 19:27:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:02,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:02,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:02,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 19:27:02,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:02,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 19:27:02,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:02,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:02,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:02,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:02,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:02,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:02,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:03,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:03,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 19:27:03,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:03,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:27:03,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:03,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:03,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:03,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:03,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:03,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:03,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:03,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:03,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:27:03,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:03,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:27:03,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:03,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:03,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 19:27:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:03,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:03,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:03,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:03,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:03,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:27:03,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:27:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:03,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:03,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 19:27:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:03,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:03,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:03,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:03,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:03,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 19:27:03,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:03,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:03,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:27:03,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:03,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:03,090 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 19:27:03,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813971767] [2020-10-13 19:27:03,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:27:03,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 19:27:03,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519045522] [2020-10-13 19:27:03,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 19:27:03,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:27:03,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 19:27:03,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-13 19:27:03,093 INFO L87 Difference]: Start difference. First operand 4423 states and 5882 transitions. Second operand 8 states. [2020-10-13 19:27:04,331 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 424 [2020-10-13 19:27:05,917 WARN L193 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2020-10-13 19:27:06,844 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 423 [2020-10-13 19:27:27,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:27:27,801 INFO L93 Difference]: Finished difference Result 12336 states and 16833 transitions. [2020-10-13 19:27:27,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 19:27:27,802 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 114 [2020-10-13 19:27:27,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:27:27,847 INFO L225 Difference]: With dead ends: 12336 [2020-10-13 19:27:27,847 INFO L226 Difference]: Without dead ends: 7940 [2020-10-13 19:27:27,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2020-10-13 19:27:27,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7940 states. [2020-10-13 19:27:28,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7940 to 6073. [2020-10-13 19:27:28,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6073 states. [2020-10-13 19:27:28,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6073 states to 6073 states and 8085 transitions. [2020-10-13 19:27:28,959 INFO L78 Accepts]: Start accepts. Automaton has 6073 states and 8085 transitions. Word has length 114 [2020-10-13 19:27:28,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:27:28,960 INFO L479 AbstractCegarLoop]: Abstraction has 6073 states and 8085 transitions. [2020-10-13 19:27:28,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 19:27:28,960 INFO L276 IsEmpty]: Start isEmpty. Operand 6073 states and 8085 transitions. [2020-10-13 19:27:28,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-13 19:27:28,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:27:28,981 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:27:28,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 19:27:28,982 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:27:28,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:27:28,982 INFO L82 PathProgramCache]: Analyzing trace with hash 816908285, now seen corresponding path program 1 times [2020-10-13 19:27:28,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:27:28,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186351672] [2020-10-13 19:27:28,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:27:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:29,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:29,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:29,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:33,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:34,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:34,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-13 19:27:34,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 19:27:34,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-13 19:27:34,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:27:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-13 19:27:34,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 19:27:34,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,013 WARN L193 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 421 [2020-10-13 19:27:35,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:27:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:35,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 19:27:35,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:35,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:27:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:27:35,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 19:27:35,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:27:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 19:27:35,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 19:27:35,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:35,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:27:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:35,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 19:27:35,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:35,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 19:27:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:35,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 19:27:35,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 19:27:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:27:35,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:27:35,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:35,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:27:35,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 19:27:35,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 19:27:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:35,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 19:27:35,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:35,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 19:27:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 19:27:35,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 19:27:35,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-13 19:27:35,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:35,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:27:35,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:35,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:27:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 19:27:35,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 19:27:35,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:35,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 19:27:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 19:27:35,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:27:35,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:35,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 19:27:35,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:27:35,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:35,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:27:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:27:35,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:27:35,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:27:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 19:27:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:35,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 19:27:35,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:27:35,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 19:27:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:27:35,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:27:35,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:27:35,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:27:35,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:27:35,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:27:35,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:27:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:27:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:27:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:27:35,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:27:35,385 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-13 19:27:35,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186351672] [2020-10-13 19:27:35,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:27:35,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 19:27:35,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270299635] [2020-10-13 19:27:35,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 19:27:35,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:27:35,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 19:27:35,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-13 19:27:35,387 INFO L87 Difference]: Start difference. First operand 6073 states and 8085 transitions. Second operand 8 states. [2020-10-13 19:27:36,215 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 424 [2020-10-13 19:27:37,591 WARN L193 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2020-10-13 19:27:38,507 WARN L193 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 423 [2020-10-13 19:27:59,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:27:59,521 INFO L93 Difference]: Finished difference Result 16124 states and 21965 transitions. [2020-10-13 19:27:59,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 19:27:59,522 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 131 [2020-10-13 19:27:59,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:27:59,567 INFO L225 Difference]: With dead ends: 16124 [2020-10-13 19:27:59,568 INFO L226 Difference]: Without dead ends: 10078 [2020-10-13 19:27:59,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2020-10-13 19:27:59,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10078 states. [2020-10-13 19:28:00,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10078 to 7747. [2020-10-13 19:28:00,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7747 states. [2020-10-13 19:28:00,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7747 states to 7747 states and 10316 transitions. [2020-10-13 19:28:00,974 INFO L78 Accepts]: Start accepts. Automaton has 7747 states and 10316 transitions. Word has length 131 [2020-10-13 19:28:00,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:28:00,975 INFO L479 AbstractCegarLoop]: Abstraction has 7747 states and 10316 transitions. [2020-10-13 19:28:00,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 19:28:00,975 INFO L276 IsEmpty]: Start isEmpty. Operand 7747 states and 10316 transitions. [2020-10-13 19:28:00,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-13 19:28:00,994 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:28:00,994 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:28:00,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 19:28:00,995 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:28:00,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:28:00,995 INFO L82 PathProgramCache]: Analyzing trace with hash 824656086, now seen corresponding path program 1 times [2020-10-13 19:28:00,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:28:00,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211359742] [2020-10-13 19:28:00,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:28:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:28:01,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:28:01,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking...