/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 12:19:51,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 12:19:51,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 12:19:51,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 12:19:51,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 12:19:51,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 12:19:51,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 12:19:51,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 12:19:51,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 12:19:51,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 12:19:51,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 12:19:51,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 12:19:51,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 12:19:51,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 12:19:51,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 12:19:51,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 12:19:51,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 12:19:51,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 12:19:51,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 12:19:51,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 12:19:51,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 12:19:51,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 12:19:51,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 12:19:51,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 12:19:51,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 12:19:51,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 12:19:51,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 12:19:51,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 12:19:51,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 12:19:51,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 12:19:51,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 12:19:51,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 12:19:51,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 12:19:51,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 12:19:51,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 12:19:51,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 12:19:51,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 12:19:51,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 12:19:51,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 12:19:51,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 12:19:51,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 12:19:51,781 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 [2020-10-14 12:19:51,804 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 12:19:51,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 12:19:51,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 12:19:51,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 12:19:51,806 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 12:19:51,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 12:19:51,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 12:19:51,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 12:19:51,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 12:19:51,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 12:19:51,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 12:19:51,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 12:19:51,811 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 12:19:51,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 12:19:51,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 12:19:51,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 12:19:51,811 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 12:19:51,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 12:19:51,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 12:19:51,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 12:19:51,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 12:19:51,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 12:19:51,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 12:19:51,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 12:19:51,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 12:19:51,813 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 12:19:51,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 12:19:51,814 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 12:19:52,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 12:19:52,147 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 12:19:52,150 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 12:19:52,152 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 12:19:52,152 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 12:19:52,153 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-14 12:19:52,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f519a7a0/15e643ddd88645d8aa63890111ab17d0/FLAG360d8989a [2020-10-14 12:19:52,960 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 12:19:52,961 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-14 12:19:53,002 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f519a7a0/15e643ddd88645d8aa63890111ab17d0/FLAG360d8989a [2020-10-14 12:19:53,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f519a7a0/15e643ddd88645d8aa63890111ab17d0 [2020-10-14 12:19:53,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 12:19:53,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 12:19:53,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 12:19:53,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 12:19:53,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 12:19:53,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:19:53" (1/1) ... [2020-10-14 12:19:53,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b5b00f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:19:53, skipping insertion in model container [2020-10-14 12:19:53,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:19:53" (1/1) ... [2020-10-14 12:19:53,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 12:19:53,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 12:19:55,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 12:19:55,233 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 12:19:55,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 12:19:55,871 INFO L208 MainTranslator]: Completed translation [2020-10-14 12:19:55,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:19:55 WrapperNode [2020-10-14 12:19:55,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 12:19:55,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 12:19:55,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 12:19:55,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 12:19:55,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:19:55" (1/1) ... [2020-10-14 12:19:55,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:19:55" (1/1) ... [2020-10-14 12:19:55,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:19:55" (1/1) ... [2020-10-14 12:19:55,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:19:55" (1/1) ... [2020-10-14 12:19:56,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:19:55" (1/1) ... [2020-10-14 12:19:56,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:19:55" (1/1) ... [2020-10-14 12:19:56,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:19:55" (1/1) ... [2020-10-14 12:19:56,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 12:19:56,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 12:19:56,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 12:19:56,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 12:19:56,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:19:55" (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 [2020-10-14 12:19:56,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 12:19:56,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 12:19:56,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 12:19:56,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-10-14 12:19:56,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-14 12:19:56,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-10-14 12:19:56,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-10-14 12:19:56,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-10-14 12:19:56,223 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-14 12:19:56,223 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-14 12:19:56,223 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-14 12:19:56,223 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-14 12:19:56,223 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-14 12:19:56,223 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-14 12:19:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-14 12:19:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2020-10-14 12:19:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-14 12:19:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-14 12:19:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2020-10-14 12:19:56,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-14 12:19:56,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-14 12:19:56,225 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-14 12:19:56,225 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-14 12:19:56,225 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 12:19:56,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 12:19:56,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-14 12:19:56,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-14 12:19:56,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-14 12:19:56,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 12:19:56,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-14 12:19:56,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 12:19:56,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-14 12:19:56,227 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-10-14 12:19:56,227 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-14 12:19:56,227 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-10-14 12:19:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-10-14 12:19:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-10-14 12:19:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-10-14 12:19:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-10-14 12:19:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-10-14 12:19:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2020-10-14 12:19:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dropped_invalid_skb [2020-10-14 12:19:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd_msg [2020-10-14 12:19:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_wait_cmd_msg [2020-10-14 12:19:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd [2020-10-14 12:19:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_open [2020-10-14 12:19:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_close [2020-10-14 12:19:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_version [2020-10-14 12:19:56,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_set_mode [2020-10-14 12:19:56,230 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_rx_err_msg [2020-10-14 12:19:56,230 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_rx_can_msg [2020-10-14 12:19:56,230 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_read_bulk_callback [2020-10-14 12:19:56,230 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_write_bulk_callback [2020-10-14 12:19:56,230 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_start_xmit [2020-10-14 12:19:56,230 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_get_berr_counter [2020-10-14 12:19:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_start [2020-10-14 12:19:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_open [2020-10-14 12:19:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2020-10-14 12:19:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_close [2020-10-14 12:19:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_probe [2020-10-14 12:19:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_disconnect [2020-10-14 12:19:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_driver_init [2020-10-14 12:19:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_driver_exit [2020-10-14 12:19:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-14 12:19:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-10-14 12:19:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 12:19:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-14 12:19:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2020-10-14 12:19:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2020-10-14 12:19:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_4 [2020-10-14 12:19:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2020-10-14 12:19:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_7 [2020-10-14 12:19:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2020-10-14 12:19:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2020-10-14 12:19:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2020-10-14 12:19:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2020-10-14 12:19:56,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_13 [2020-10-14 12:19:56,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_14 [2020-10-14 12:19:56,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_15 [2020-10-14 12:19:56,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_16 [2020-10-14 12:19:56,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_18 [2020-10-14 12:19:56,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_19 [2020-10-14 12:19:56,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-14 12:19:56,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-14 12:19:56,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-14 12:19:56,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-14 12:19:56,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-14 12:19:56,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-14 12:19:56,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-14 12:19:56,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-14 12:19:56,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-14 12:19:56,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-14 12:19:56,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-14 12:19:56,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-14 12:19:56,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-14 12:19:56,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-14 12:19:56,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-14 12:19:56,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-14 12:19:56,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 12:19:56,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-14 12:19:56,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-14 12:19:56,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-10-14 12:19:56,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-14 12:19:56,238 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-14 12:19:56,238 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_err_skb [2020-10-14 12:19:56,238 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_skb [2020-10-14 12:19:56,238 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_candev [2020-10-14 12:19:56,238 INFO L138 BoogieDeclarations]: Found implementation of procedure can_bus_off [2020-10-14 12:19:56,238 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2020-10-14 12:19:56,239 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_echo_skb [2020-10-14 12:19:56,239 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2020-10-14 12:19:56,239 INFO L138 BoogieDeclarations]: Found implementation of procedure can_put_echo_skb [2020-10-14 12:19:56,239 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2020-10-14 12:19:56,239 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2020-10-14 12:19:56,239 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-14 12:19:56,239 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_can_led_init [2020-10-14 12:19:56,240 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2020-10-14 12:19:56,240 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2020-10-14 12:19:56,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 12:19:56,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-10-14 12:19:56,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-10-14 12:19:56,240 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-14 12:19:56,240 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-14 12:19:56,241 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-10-14 12:19:56,241 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-10-14 12:19:56,241 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-10-14 12:19:56,241 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-10-14 12:19:56,241 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2020-10-14 12:19:56,241 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2020-10-14 12:19:56,242 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2020-10-14 12:19:56,242 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-14 12:19:56,242 INFO L138 BoogieDeclarations]: Found implementation of procedure register_candev [2020-10-14 12:19:56,242 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-10-14 12:19:56,242 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-14 12:19:56,242 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2020-10-14 12:19:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2020-10-14 12:19:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-14 12:19:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-14 12:19:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2020-10-14 12:19:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-14 12:19:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2020-10-14 12:19:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2020-10-14 12:19:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-14 12:19:56,244 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 12:19:56,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-14 12:19:56,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 12:19:56,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-14 12:19:56,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 12:19:56,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 12:19:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-14 12:19:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-14 12:19:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-14 12:19:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-10-14 12:19:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-14 12:19:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-10-14 12:19:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-10-14 12:19:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 12:19:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-10-14 12:19:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-14 12:19:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-14 12:19:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-14 12:19:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-14 12:19:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-14 12:19:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-14 12:19:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-14 12:19:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-14 12:19:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 12:19:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-14 12:19:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2020-10-14 12:19:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-14 12:19:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 12:19:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-14 12:19:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-14 12:19:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-14 12:19:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-14 12:19:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-14 12:19:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-14 12:19:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-14 12:19:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-14 12:19:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_16 [2020-10-14 12:19:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_15 [2020-10-14 12:19:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-14 12:19:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-14 12:19:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_18 [2020-10-14 12:19:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-14 12:19:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_19 [2020-10-14 12:19:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2020-10-14 12:19:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 12:19:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 12:19:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2020-10-14 12:19:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_4 [2020-10-14 12:19:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2020-10-14 12:19:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_7 [2020-10-14 12:19:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2020-10-14 12:19:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2020-10-14 12:19:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_13 [2020-10-14 12:19:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_14 [2020-10-14 12:19:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2020-10-14 12:19:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2020-10-14 12:19:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2020-10-14 12:19:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2020-10-14 12:19:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2020-10-14 12:19:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2020-10-14 12:19:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-14 12:19:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-14 12:19:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2020-10-14 12:19:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2020-10-14 12:19:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-14 12:19:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-14 12:19:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-14 12:19:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-14 12:19:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-14 12:19:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-14 12:19:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-14 12:19:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-14 12:19:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 12:19:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 12:19:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-14 12:19:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-14 12:19:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-14 12:19:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-14 12:19:56,256 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 12:19:56,256 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 12:19:56,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 12:19:56,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 12:19:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 12:19:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 12:19:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 12:19:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 12:19:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-14 12:19:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-14 12:19:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 12:19:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-14 12:19:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-14 12:19:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-14 12:19:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-10-14 12:19:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2020-10-14 12:19:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2020-10-14 12:19:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-10-14 12:19:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 12:19:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-14 12:19:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2020-10-14 12:19:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-10-14 12:19:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-10-14 12:19:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-10-14 12:19:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-10-14 12:19:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-10-14 12:19:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-10-14 12:19:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-10-14 12:19:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2020-10-14 12:19:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2020-10-14 12:19:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-10-14 12:19:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-10-14 12:19:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-10-14 12:19:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-10-14 12:19:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-10-14 12:19:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2020-10-14 12:19:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure devm_can_led_init [2020-10-14 12:19:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure can_dropped_invalid_skb [2020-10-14 12:19:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_candev [2020-10-14 12:19:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2020-10-14 12:19:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2020-10-14 12:19:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2020-10-14 12:19:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure register_candev [2020-10-14 12:19:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure can_bus_off [2020-10-14 12:19:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure can_put_echo_skb [2020-10-14 12:19:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_echo_skb [2020-10-14 12:19:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2020-10-14 12:19:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_skb [2020-10-14 12:19:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_err_skb [2020-10-14 12:19:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd_msg [2020-10-14 12:19:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_wait_cmd_msg [2020-10-14 12:19:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd [2020-10-14 12:19:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-14 12:19:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_open [2020-10-14 12:19:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-14 12:19:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_close [2020-10-14 12:19:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_version [2020-10-14 12:19:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_set_mode [2020-10-14 12:19:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_rx_err_msg [2020-10-14 12:19:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_rx_can_msg [2020-10-14 12:19:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_read_bulk_callback [2020-10-14 12:19:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_write_bulk_callback [2020-10-14 12:19:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_start_xmit [2020-10-14 12:19:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_get_berr_counter [2020-10-14 12:19:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_start [2020-10-14 12:19:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_open [2020-10-14 12:19:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2020-10-14 12:19:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_close [2020-10-14 12:19:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_probe [2020-10-14 12:19:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_disconnect [2020-10-14 12:19:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_driver_init [2020-10-14 12:19:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_driver_exit [2020-10-14 12:19:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-10-14 12:19:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-10-14 12:19:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 12:19:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 12:19:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 12:19:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-14 12:19:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-14 12:19:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-14 12:19:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 12:19:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-14 12:19:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-14 12:19:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-14 12:19:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-14 12:19:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-14 12:19:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-14 12:19:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-14 12:19:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 12:19:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 12:19:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-14 12:19:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 12:19:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 12:19:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 12:19:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-14 12:19:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-14 12:19:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-14 12:19:57,802 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-14 12:20:02,262 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-14 12:20:03,060 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 12:20:03,060 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 12:20:03,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:20:03 BoogieIcfgContainer [2020-10-14 12:20:03,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 12:20:03,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 12:20:03,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 12:20:03,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 12:20:03,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:19:53" (1/3) ... [2020-10-14 12:20:03,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c79692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:20:03, skipping insertion in model container [2020-10-14 12:20:03,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:19:55" (2/3) ... [2020-10-14 12:20:03,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c79692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:20:03, skipping insertion in model container [2020-10-14 12:20:03,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:20:03" (3/3) ... [2020-10-14 12:20:03,086 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-14 12:20:03,098 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 12:20:03,108 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 12:20:03,122 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 12:20:03,151 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 12:20:03,152 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 12:20:03,152 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 12:20:03,152 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 12:20:03,152 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 12:20:03,152 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 12:20:03,152 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 12:20:03,152 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 12:20:03,205 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states. [2020-10-14 12:20:03,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 12:20:03,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:20:03,221 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:20:03,222 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:20:03,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:20:03,228 INFO L82 PathProgramCache]: Analyzing trace with hash 228599628, now seen corresponding path program 1 times [2020-10-14 12:20:03,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:20:03,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33139565] [2020-10-14 12:20:03,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:20:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:03,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:04,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:06,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:06,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 12:20:06,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 12:20:06,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2414 [2020-10-14 12:20:06,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:06,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:20:06,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-14 12:20:06,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 12:20:06,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 12:20:07,258 WARN L193 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 12:20:07,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:20:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:07,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:07,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:07,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:20:07,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:07,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 12:20:07,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:07,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:07,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:07,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:20:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:07,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:07,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:07,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:20:07,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:07,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 12:20:07,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:07,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:07,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:07,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:07,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:07,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:07,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:20:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:07,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:07,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:07,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:20:07,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:07,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 12:20:07,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:07,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:07,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:07,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:07,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:07,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:07,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:20:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:07,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:07,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:07,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:20:07,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:07,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:20:07,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:07,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:07,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:07,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:07,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:07,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:07,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 12:20:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:07,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:07,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:07,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 12:20:07,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:07,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 12:20:07,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:07,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:07,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:07,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 12:20:07,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:07,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:07,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:20:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:07,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:07,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:07,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 12:20:07,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:07,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 12:20:07,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:07,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:07,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:07,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:07,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:07,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:07,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:20:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:07,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:07,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:07,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:20:07,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:07,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:20:07,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:07,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:07,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:07,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 12:20:07,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33139565] [2020-10-14 12:20:07,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:20:07,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 12:20:07,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263886060] [2020-10-14 12:20:07,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 12:20:07,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:20:07,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 12:20:07,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 12:20:07,781 INFO L87 Difference]: Start difference. First operand 996 states. Second operand 6 states. [2020-10-14 12:20:14,121 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-14 12:20:45,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:20:45,108 INFO L93 Difference]: Finished difference Result 3374 states and 4541 transitions. [2020-10-14 12:20:45,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 12:20:45,111 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-10-14 12:20:45,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:20:45,157 INFO L225 Difference]: With dead ends: 3374 [2020-10-14 12:20:45,157 INFO L226 Difference]: Without dead ends: 2387 [2020-10-14 12:20:45,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-14 12:20:45,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2020-10-14 12:20:45,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 1807. [2020-10-14 12:20:45,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1807 states. [2020-10-14 12:20:45,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2250 transitions. [2020-10-14 12:20:45,727 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2250 transitions. Word has length 45 [2020-10-14 12:20:45,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:20:45,728 INFO L479 AbstractCegarLoop]: Abstraction has 1807 states and 2250 transitions. [2020-10-14 12:20:45,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 12:20:45,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2250 transitions. [2020-10-14 12:20:45,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 12:20:45,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:20:45,734 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:20:45,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 12:20:45,735 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:20:45,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:20:45,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1241958081, now seen corresponding path program 1 times [2020-10-14 12:20:45,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:20:45,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655872361] [2020-10-14 12:20:45,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:20:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:45,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:47,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:47,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 12:20:47,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:47,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1432 [2020-10-14 12:20:47,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:47,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:47,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 12:20:47,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:20:47,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 12:20:47,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:48,116 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 12:20:48,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:20:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:48,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:48,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:48,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:20:48,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:48,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-14 12:20:48,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:48,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:48,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:20:48,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:48,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:20:48,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:48,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:20:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:48,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:48,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:48,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:20:48,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:48,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 12:20:48,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:48,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:48,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:20:48,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:48,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:20:48,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:48,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:20:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:48,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:48,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:48,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:20:48,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:48,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 12:20:48,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:48,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:20:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:48,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:20:48,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:48,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:20:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:48,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:48,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:48,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:20:48,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:48,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 12:20:48,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:48,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:48,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:20:48,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:48,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:20:48,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:48,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 12:20:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:48,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:48,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:48,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:20:48,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:48,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 12:20:48,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:48,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:48,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:20:48,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:48,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 12:20:48,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:48,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:20:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:48,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:48,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:48,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:20:48,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:48,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 12:20:48,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:48,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:48,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:48,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:48,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:48,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:48,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:20:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:48,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:48,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:48,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:20:48,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:48,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 12:20:48,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:48,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:48,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:48,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:48,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:48,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:48,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:20:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:48,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:48,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:48,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:20:48,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:48,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 12:20:48,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:48,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:48,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:48,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:48,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:48,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:48,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:20:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:20:48,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:20:48,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:20:48,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:20:48,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:20:48,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 12:20:48,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:20:48,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:20:48,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:20:48,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:20:48,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:20:48,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:20:48,878 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 12:20:48,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655872361] [2020-10-14 12:20:48,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:20:48,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 12:20:48,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133394513] [2020-10-14 12:20:48,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 12:20:48,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:20:48,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 12:20:48,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 12:20:48,883 INFO L87 Difference]: Start difference. First operand 1807 states and 2250 transitions. Second operand 7 states. [2020-10-14 12:20:52,945 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2020-10-14 12:21:14,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:21:14,359 INFO L93 Difference]: Finished difference Result 6567 states and 8684 transitions. [2020-10-14 12:21:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 12:21:14,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2020-10-14 12:21:14,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:21:14,395 INFO L225 Difference]: With dead ends: 6567 [2020-10-14 12:21:14,396 INFO L226 Difference]: Without dead ends: 4774 [2020-10-14 12:21:14,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-14 12:21:14,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4774 states. [2020-10-14 12:21:15,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4774 to 3807. [2020-10-14 12:21:15,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3807 states. [2020-10-14 12:21:15,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 4822 transitions. [2020-10-14 12:21:15,327 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 4822 transitions. Word has length 61 [2020-10-14 12:21:15,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:21:15,327 INFO L479 AbstractCegarLoop]: Abstraction has 3807 states and 4822 transitions. [2020-10-14 12:21:15,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 12:21:15,328 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 4822 transitions. [2020-10-14 12:21:15,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-14 12:21:15,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:21:15,334 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:21:15,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 12:21:15,334 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:21:15,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:21:15,335 INFO L82 PathProgramCache]: Analyzing trace with hash -154586450, now seen corresponding path program 1 times [2020-10-14 12:21:15,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:21:15,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258049497] [2020-10-14 12:21:15,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:21:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:15,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:16,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:16,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 12:21:16,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:16,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 583 [2020-10-14 12:21:16,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:16,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:16,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:16,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:21:16,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 12:21:16,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:16,956 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 12:21:16,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:21:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:17,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:17,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:17,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:21:17,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:17,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-14 12:21:17,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:17,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:17,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:17,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:17,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:21:17,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:21:17,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:21:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:17,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:17,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:17,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:17,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:17,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 12:21:17,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:17,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:17,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:17,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:17,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:21:17,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:21:17,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:21:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:17,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:17,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:17,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:17,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:17,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 12:21:17,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:17,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:17,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:21:17,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:17,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:21:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:17,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:17,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:17,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:21:17,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:17,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:21:17,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:17,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:17,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:21:17,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:17,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 12:21:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:17,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:17,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:17,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:21:17,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:17,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 12:21:17,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:17,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:17,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:17,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:17,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 12:21:17,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:17,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:17,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:17,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:17,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:21:17,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:17,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 12:21:17,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:17,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:17,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:17,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:17,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:17,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:17,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:17,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:17,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:17,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:21:17,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:17,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:21:17,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:17,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:17,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:17,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:17,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:17,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:17,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:21:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:17,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:17,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:17,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:21:17,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:17,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 12:21:17,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:17,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:17,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:17,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:17,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:17,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:17,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:17,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:17,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:17,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:17,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:17,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:21:17,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:17,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:17,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:17,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:17,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:17,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:17,655 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 12:21:17,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258049497] [2020-10-14 12:21:17,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:21:17,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 12:21:17,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240638437] [2020-10-14 12:21:17,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 12:21:17,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:21:17,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 12:21:17,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 12:21:17,659 INFO L87 Difference]: Start difference. First operand 3807 states and 4822 transitions. Second operand 7 states. [2020-10-14 12:21:22,545 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2020-10-14 12:21:37,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:21:37,992 INFO L93 Difference]: Finished difference Result 4766 states and 6393 transitions. [2020-10-14 12:21:37,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 12:21:37,994 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-10-14 12:21:37,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:21:38,033 INFO L225 Difference]: With dead ends: 4766 [2020-10-14 12:21:38,033 INFO L226 Difference]: Without dead ends: 4763 [2020-10-14 12:21:38,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-14 12:21:38,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2020-10-14 12:21:39,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 3806. [2020-10-14 12:21:39,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3806 states. [2020-10-14 12:21:39,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 4820 transitions. [2020-10-14 12:21:39,639 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 4820 transitions. Word has length 62 [2020-10-14 12:21:39,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:21:39,643 INFO L479 AbstractCegarLoop]: Abstraction has 3806 states and 4820 transitions. [2020-10-14 12:21:39,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 12:21:39,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 4820 transitions. [2020-10-14 12:21:39,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 12:21:39,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:21:39,650 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:21:39,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 12:21:39,650 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:21:39,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:21:39,651 INFO L82 PathProgramCache]: Analyzing trace with hash -497789084, now seen corresponding path program 1 times [2020-10-14 12:21:39,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:21:39,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288107261] [2020-10-14 12:21:39,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:21:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:39,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:40,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:40,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 12:21:40,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:40,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 762 [2020-10-14 12:21:40,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:40,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:40,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:40,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:21:40,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 12:21:40,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:41,716 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 12:21:41,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:21:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:41,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:42,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:42,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:21:42,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:42,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-10-14 12:21:42,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:42,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:42,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:42,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:42,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:21:42,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:42,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:21:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:42,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:42,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:42,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:42,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:42,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 12:21:42,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:42,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:42,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:42,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:42,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:21:42,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:42,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:21:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:42,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:42,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:42,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:42,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:42,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 12:21:42,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:42,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:42,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:42,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:42,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:21:42,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:42,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:21:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:42,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:42,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:42,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:21:42,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:42,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 12:21:42,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:42,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:42,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:42,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:42,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:21:42,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:42,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 12:21:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:42,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:42,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:42,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:21:42,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:42,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 12:21:42,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:42,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:21:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 12:21:42,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:42,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:42,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:42,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:42,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:21:42,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:42,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 12:21:42,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:42,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:42,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:42,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:42,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:42,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:42,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:42,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:42,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:42,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:21:42,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:42,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:21:42,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:42,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:42,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:42,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:42,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:42,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:42,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:21:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:42,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:42,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:42,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:21:42,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:42,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 12:21:42,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:42,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:42,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:42,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:42,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:42,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:42,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:21:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:21:42,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:21:42,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:21:42,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:21:42,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:21:42,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:21:42,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:21:42,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:21:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:21:42,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:21:42,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:21:42,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:21:42,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 12:21:42,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288107261] [2020-10-14 12:21:42,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:21:42,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 12:21:42,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847765949] [2020-10-14 12:21:42,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 12:21:42,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:21:42,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 12:21:42,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 12:21:42,720 INFO L87 Difference]: Start difference. First operand 3806 states and 4820 transitions. Second operand 7 states. [2020-10-14 12:21:46,358 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-14 12:22:03,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:22:03,285 INFO L93 Difference]: Finished difference Result 4765 states and 6391 transitions. [2020-10-14 12:22:03,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 12:22:03,286 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2020-10-14 12:22:03,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:22:03,315 INFO L225 Difference]: With dead ends: 4765 [2020-10-14 12:22:03,315 INFO L226 Difference]: Without dead ends: 4762 [2020-10-14 12:22:03,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-14 12:22:03,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4762 states. [2020-10-14 12:22:04,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4762 to 3805. [2020-10-14 12:22:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3805 states. [2020-10-14 12:22:04,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3805 states to 3805 states and 4818 transitions. [2020-10-14 12:22:04,293 INFO L78 Accepts]: Start accepts. Automaton has 3805 states and 4818 transitions. Word has length 63 [2020-10-14 12:22:04,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:22:04,293 INFO L479 AbstractCegarLoop]: Abstraction has 3805 states and 4818 transitions. [2020-10-14 12:22:04,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 12:22:04,294 INFO L276 IsEmpty]: Start isEmpty. Operand 3805 states and 4818 transitions. [2020-10-14 12:22:04,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 12:22:04,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:22:04,297 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:22:04,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 12:22:04,298 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:22:04,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:22:04,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1747836017, now seen corresponding path program 1 times [2020-10-14 12:22:04,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:22:04,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925921353] [2020-10-14 12:22:04,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:22:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:04,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:04,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:04,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 12:22:04,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:04,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-10-14 12:22:04,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:04,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:04,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:04,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:22:04,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 12:22:04,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:05,625 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 12:22:05,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:22:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:05,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:05,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:05,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:05,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:05,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-14 12:22:05,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:05,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:05,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:05,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:05,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:22:05,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:05,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:22:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:05,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:05,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:05,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:05,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:05,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:22:05,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:05,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:05,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:05,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:05,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:22:05,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:05,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:22:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:05,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:05,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:05,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:05,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:05,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 12:22:05,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:05,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:22:05,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:05,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:22:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:05,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:05,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:05,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:22:05,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:05,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:22:05,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:05,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:05,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:05,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:05,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:22:05,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:06,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 12:22:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:06,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:06,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:22:06,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:06,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 12:22:06,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:06,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 12:22:06,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:06,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:06,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:06,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:22:06,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:06,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 12:22:06,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:06,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:06,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:06,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:06,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:06,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:06,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:06,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:06,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:06,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:06,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:06,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:06,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:06,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:06,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:06,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:06,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:06,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:22:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:06,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:06,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:22:06,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:06,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 12:22:06,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:06,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:06,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:06,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:06,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:06,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:06,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:06,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:06,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:06,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:06,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:06,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:06,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:06,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:06,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:06,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:06,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:06,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:06,199 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 12:22:06,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [925921353] [2020-10-14 12:22:06,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:22:06,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 12:22:06,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812796756] [2020-10-14 12:22:06,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 12:22:06,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:22:06,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 12:22:06,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 12:22:06,203 INFO L87 Difference]: Start difference. First operand 3805 states and 4818 transitions. Second operand 7 states. [2020-10-14 12:22:10,417 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-14 12:22:27,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:22:27,591 INFO L93 Difference]: Finished difference Result 4764 states and 6389 transitions. [2020-10-14 12:22:27,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 12:22:27,592 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-10-14 12:22:27,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:22:27,619 INFO L225 Difference]: With dead ends: 4764 [2020-10-14 12:22:27,620 INFO L226 Difference]: Without dead ends: 4761 [2020-10-14 12:22:27,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-14 12:22:27,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4761 states. [2020-10-14 12:22:28,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4761 to 3804. [2020-10-14 12:22:28,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3804 states. [2020-10-14 12:22:28,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 4816 transitions. [2020-10-14 12:22:28,423 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 4816 transitions. Word has length 64 [2020-10-14 12:22:28,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:22:28,424 INFO L479 AbstractCegarLoop]: Abstraction has 3804 states and 4816 transitions. [2020-10-14 12:22:28,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 12:22:28,424 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 4816 transitions. [2020-10-14 12:22:28,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 12:22:28,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:22:28,426 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:22:28,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 12:22:28,427 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:22:28,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:22:28,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1652225017, now seen corresponding path program 1 times [2020-10-14 12:22:28,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:22:28,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854978479] [2020-10-14 12:22:28,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:22:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:28,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:28,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:28,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 12:22:28,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:28,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 507 [2020-10-14 12:22:28,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:28,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:29,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 12:22:29,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 12:22:29,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:29,766 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 12:22:29,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:22:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:29,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:30,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:30,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:30,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:30,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-14 12:22:30,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:30,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:30,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:30,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:30,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 12:22:30,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:30,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:22:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:30,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:30,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:30,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:30,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:30,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 12:22:30,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:30,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:30,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:22:30,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:30,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:22:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:30,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:30,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:30,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:30,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:30,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 12:22:30,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:30,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:30,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:30,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:30,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:22:30,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:30,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:22:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:30,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:30,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:30,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:22:30,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:30,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:22:30,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:30,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 12:22:30,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:30,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 12:22:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:30,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:30,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:30,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:22:30,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:30,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 12:22:30,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:30,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:30,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:30,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:30,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 12:22:30,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:30,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:30,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:30,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:30,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:22:30,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:30,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 12:22:30,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:30,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:30,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:30,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:30,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:30,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:30,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:30,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:30,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:30,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:22:30,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:30,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:30,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:30,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:30,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:30,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:30,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:22:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:30,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:30,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:30,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:22:30,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:30,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:22:30,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:30,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:30,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:30,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:30,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:30,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:30,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:22:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:30,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:30,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:30,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:30,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:30,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 12:22:30,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:30,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:30,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:30,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:30,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:30,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:30,440 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 12:22:30,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854978479] [2020-10-14 12:22:30,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:22:30,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 12:22:30,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886350695] [2020-10-14 12:22:30,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 12:22:30,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:22:30,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 12:22:30,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 12:22:30,442 INFO L87 Difference]: Start difference. First operand 3804 states and 4816 transitions. Second operand 7 states. [2020-10-14 12:22:34,303 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-14 12:22:51,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:22:51,981 INFO L93 Difference]: Finished difference Result 4763 states and 6387 transitions. [2020-10-14 12:22:51,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 12:22:51,982 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-10-14 12:22:51,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:22:52,008 INFO L225 Difference]: With dead ends: 4763 [2020-10-14 12:22:52,008 INFO L226 Difference]: Without dead ends: 4738 [2020-10-14 12:22:52,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-14 12:22:52,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4738 states. [2020-10-14 12:22:52,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4738 to 3784. [2020-10-14 12:22:52,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3784 states. [2020-10-14 12:22:52,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 4792 transitions. [2020-10-14 12:22:52,652 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 4792 transitions. Word has length 65 [2020-10-14 12:22:52,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:22:52,653 INFO L479 AbstractCegarLoop]: Abstraction has 3784 states and 4792 transitions. [2020-10-14 12:22:52,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 12:22:52,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 4792 transitions. [2020-10-14 12:22:52,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-14 12:22:52,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:22:52,660 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:22:52,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 12:22:52,660 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:22:52,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:22:52,661 INFO L82 PathProgramCache]: Analyzing trace with hash -2054591072, now seen corresponding path program 1 times [2020-10-14 12:22:52,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:22:52,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326066763] [2020-10-14 12:22:52,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:22:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:52,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:52,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:53,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:53,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:57,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:57,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-14 12:22:57,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 12:22:57,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 12:22:57,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:57,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:57,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 12:22:57,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-14 12:22:57,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 12:22:57,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:58,490 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-14 12:22:58,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 12:22:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:58,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:58,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:58,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:22:58,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:58,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 12:22:58,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:58,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:58,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:58,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:58,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:58,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:58,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:22:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:58,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:58,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:58,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:58,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:58,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:58,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:58,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:58,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:58,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:58,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:58,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 12:22:58,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 12:22:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:58,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:58,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:58,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:22:58,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:58,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:22:58,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:58,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:58,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:58,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:58,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 12:22:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:58,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:58,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:22:58,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 12:22:58,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:22:58,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 12:22:58,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:22:58,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:22:58,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:22:58,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:22:58,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:22:58,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:22:58,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 12:22:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:22:58,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:58,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:22:58,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:00,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:01,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 12:23:01,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 12:23:01,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2462 [2020-10-14 12:23:01,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:01,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 12:23:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:01,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:01,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:01,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:01,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:01,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:01,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:23:01,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:01,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:01,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:01,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:01,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:01,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:01,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:01,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 12:23:01,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:01,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 12:23:01,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:01,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:01,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:01,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:01,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:01,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:01,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 12:23:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:01,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:01,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:01,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:01,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 12:23:01,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:01,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:01,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:01,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:01,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:01,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:01,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 12:23:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:01,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:01,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 12:23:01,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 12:23:01,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 12:23:01,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:01,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:01,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:01,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:01,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:01,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:01,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:01,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:01,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 12:23:01,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 12:23:01,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 12:23:01,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:01,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:01,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:01,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:01,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:01,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:01,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:01,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:01,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:01,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:01,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:23:01,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:01,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:01,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:01,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 12:23:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:01,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:01,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:01,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:01,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 12:23:01,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:01,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:01,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:01,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:01,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:01,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:01,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 12:23:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:01,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:01,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:01,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:01,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:23:01,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:01,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:01,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:01,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:01,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:01,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:01,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 12:23:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:01,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:01,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 12:23:01,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:01,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 12:23:01,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:01,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:01,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-14 12:23:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:01,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:01,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:01,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:01,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 12:23:01,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:01,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 12:23:01,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:01,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:01,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:01,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:01,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:01,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:01,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:01,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:01,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 12:23:01,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:01,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 12:23:01,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:01,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:01,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:01,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:01,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:01,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:01,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 12:23:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:01,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:01,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 12:23:01,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:01,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 12:23:01,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:01,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:01,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:01,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:01,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:01,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 12:23:01,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 12:23:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:01,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:01,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 12:23:01,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 12:23:01,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 12:23:01,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 12:23:01,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 12:23:01,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 12:23:01,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 12:23:01,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 12:23:01,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 12:23:01,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 12:23:01,913 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 12:23:01,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326066763] [2020-10-14 12:23:01,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 12:23:01,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 12:23:01,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366526195] [2020-10-14 12:23:01,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 12:23:01,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 12:23:01,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 12:23:01,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-14 12:23:01,917 INFO L87 Difference]: Start difference. First operand 3784 states and 4792 transitions. Second operand 11 states. [2020-10-14 12:23:05,066 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-14 12:23:32,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 12:23:32,114 INFO L93 Difference]: Finished difference Result 12218 states and 17001 transitions. [2020-10-14 12:23:32,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 12:23:32,115 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 123 [2020-10-14 12:23:32,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 12:23:32,163 INFO L225 Difference]: With dead ends: 12218 [2020-10-14 12:23:32,163 INFO L226 Difference]: Without dead ends: 8448 [2020-10-14 12:23:32,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=230, Invalid=472, Unknown=0, NotChecked=0, Total=702 [2020-10-14 12:23:32,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8448 states. [2020-10-14 12:23:33,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8448 to 5404. [2020-10-14 12:23:33,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5404 states. [2020-10-14 12:23:33,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 6852 transitions. [2020-10-14 12:23:33,152 INFO L78 Accepts]: Start accepts. Automaton has 5404 states and 6852 transitions. Word has length 123 [2020-10-14 12:23:33,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 12:23:33,153 INFO L479 AbstractCegarLoop]: Abstraction has 5404 states and 6852 transitions. [2020-10-14 12:23:33,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 12:23:33,153 INFO L276 IsEmpty]: Start isEmpty. Operand 5404 states and 6852 transitions. [2020-10-14 12:23:33,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-14 12:23:33,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 12:23:33,163 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 12:23:33,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 12:23:33,163 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 12:23:33,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 12:23:33,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1702078341, now seen corresponding path program 1 times [2020-10-14 12:23:33,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 12:23:33,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881471907] [2020-10-14 12:23:33,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 12:23:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 12:23:33,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:33,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:33,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 12:23:34,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking...