/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:31:01,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:31:01,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:31:01,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:31:01,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:31:01,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:31:01,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:31:01,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:31:01,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:31:01,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:31:01,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:31:01,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:31:01,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:31:01,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:31:01,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:31:01,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:31:01,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:31:01,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:31:01,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:31:01,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:31:01,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:31:01,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:31:01,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:31:01,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:31:01,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:31:01,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:31:01,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:31:01,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:31:01,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:31:01,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:31:01,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:31:01,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:31:01,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:31:01,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:31:01,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:31:01,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:31:01,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:31:01,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:31:01,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:31:01,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:31:01,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:31:01,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-25 08:31:01,938 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:31:01,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:31:01,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:31:01,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:31:01,941 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:31:01,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:31:01,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:31:01,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:31:01,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:31:01,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:31:01,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:31:01,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:31:01,943 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:31:01,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:31:01,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:31:01,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:31:01,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:31:01,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:31:01,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:31:01,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:31:01,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:31:01,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:31:01,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:31:01,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:31:01,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:31:01,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:31:01,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 08:31:01,947 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 08:31:02,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:31:02,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:31:02,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:31:02,486 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:31:02,487 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:31:02,488 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-25 08:31:02,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2d46f581/d7f75489c9144f0bb82e9a4c2a557176/FLAG692715021 [2020-09-25 08:31:03,544 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:31:03,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-25 08:31:03,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2d46f581/d7f75489c9144f0bb82e9a4c2a557176/FLAG692715021 [2020-09-25 08:31:04,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2d46f581/d7f75489c9144f0bb82e9a4c2a557176 [2020-09-25 08:31:04,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:31:04,022 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:31:04,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:31:04,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:31:04,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:31:04,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:31:04" (1/1) ... [2020-09-25 08:31:04,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428b206b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:04, skipping insertion in model container [2020-09-25 08:31:04,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:31:04" (1/1) ... [2020-09-25 08:31:04,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:31:04,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:31:05,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:31:05,892 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:31:06,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:31:06,301 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:31:06,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:06 WrapperNode [2020-09-25 08:31:06,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:31:06,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:31:06,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:31:06,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:31:06,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:06" (1/1) ... [2020-09-25 08:31:06,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:06" (1/1) ... [2020-09-25 08:31:06,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:06" (1/1) ... [2020-09-25 08:31:06,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:06" (1/1) ... [2020-09-25 08:31:06,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:06" (1/1) ... [2020-09-25 08:31:06,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:06" (1/1) ... [2020-09-25 08:31:06,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:06" (1/1) ... [2020-09-25 08:31:06,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:31:06,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:31:06,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:31:06,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:31:06,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:31:06,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:31:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:31:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 08:31:06,672 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-09-25 08:31:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-09-25 08:31:06,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-25 08:31:06,674 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-25 08:31:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-25 08:31:06,675 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 08:31:06,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 08:31:06,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 08:31:06,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 08:31:06,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 08:31:06,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 08:31:06,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 08:31:06,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 08:31:06,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 08:31:06,681 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2020-09-25 08:31:06,681 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_set_drvdata [2020-09-25 08:31:06,681 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2020-09-25 08:31:06,682 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_unregister_driver [2020-09-25 08:31:06,682 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2020-09-25 08:31:06,682 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2020-09-25 08:31:06,682 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_reset [2020-09-25 08:31:06,683 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_init [2020-09-25 08:31:06,683 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_read_busy [2020-09-25 08:31:06,683 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_read [2020-09-25 08:31:06,684 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_write [2020-09-25 08:31:06,684 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_probe [2020-09-25 08:31:06,684 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_remove [2020-09-25 08:31:06,684 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_init [2020-09-25 08:31:06,684 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_exit [2020-09-25 08:31:06,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-25 08:31:06,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_spi_driver_1 [2020-09-25 08:31:06,685 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:31:06,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-09-25 08:31:06,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-09-25 08:31:06,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-09-25 08:31:06,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-09-25 08:31:06,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-09-25 08:31:06,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-09-25 08:31:06,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-09-25 08:31:06,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-09-25 08:31:06,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-09-25 08:31:06,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-09-25 08:31:06,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-09-25 08:31:06,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-09-25 08:31:06,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-09-25 08:31:06,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-09-25 08:31:06,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 08:31:06,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-09-25 08:31:06,689 INFO L138 BoogieDeclarations]: Found implementation of procedure crc7 [2020-09-25 08:31:06,690 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-25 08:31:06,690 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-25 08:31:06,691 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 08:31:06,691 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2020-09-25 08:31:06,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 08:31:06,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-25 08:31:06,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_2 [2020-09-25 08:31:06,692 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2020-09-25 08:31:06,692 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_data [2020-09-25 08:31:06,692 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_resources [2020-09-25 08:31:06,692 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2020-09-25 08:31:06,693 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_put [2020-09-25 08:31:06,693 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2020-09-25 08:31:06,693 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_register_driver [2020-09-25 08:31:06,693 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_setup [2020-09-25 08:31:06,693 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2020-09-25 08:31:06,694 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-25 08:31:06,694 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 08:31:06,695 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 08:31:06,695 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 08:31:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:31:06,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 08:31:06,698 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 08:31:06,698 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-25 08:31:06,698 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-09-25 08:31:06,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:31:06,699 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-09-25 08:31:06,700 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-09-25 08:31:06,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:31:06,700 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2020-09-25 08:31:06,702 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-25 08:31:06,702 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 08:31:06,702 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-25 08:31:06,703 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 08:31:06,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 08:31:06,703 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-25 08:31:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-25 08:31:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 08:31:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-25 08:31:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:31:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 08:31:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:31:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2020-09-25 08:31:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 08:31:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 08:31:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 08:31:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:31:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 08:31:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 08:31:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 08:31:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 08:31:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 08:31:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 08:31:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-25 08:31:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_spi_driver_1 [2020-09-25 08:31:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure crc7 [2020-09-25 08:31:06,710 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2020-09-25 08:31:06,710 INFO L130 BoogieDeclarations]: Found specification of procedure spi_set_drvdata [2020-09-25 08:31:06,710 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2020-09-25 08:31:06,711 INFO L130 BoogieDeclarations]: Found specification of procedure spi_register_driver [2020-09-25 08:31:06,711 INFO L130 BoogieDeclarations]: Found specification of procedure spi_unregister_driver [2020-09-25 08:31:06,711 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2020-09-25 08:31:06,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 08:31:06,712 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2020-09-25 08:31:06,713 INFO L130 BoogieDeclarations]: Found specification of procedure spi_setup [2020-09-25 08:31:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2020-09-25 08:31:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2020-09-25 08:31:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2020-09-25 08:31:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_resources [2020-09-25 08:31:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_data [2020-09-25 08:31:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2020-09-25 08:31:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2020-09-25 08:31:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_reset [2020-09-25 08:31:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:31:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:31:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:31:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_init [2020-09-25 08:31:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:31:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_read_busy [2020-09-25 08:31:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_read [2020-09-25 08:31:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_write [2020-09-25 08:31:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_probe [2020-09-25 08:31:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_remove [2020-09-25 08:31:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_init [2020-09-25 08:31:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_exit [2020-09-25 08:31:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 08:31:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-25 08:31:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 08:31:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_2 [2020-09-25 08:31:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:31:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-09-25 08:31:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-09-25 08:31:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-09-25 08:31:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-09-25 08:31:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-09-25 08:31:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-09-25 08:31:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-09-25 08:31:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-09-25 08:31:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 08:31:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-09-25 08:31:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-09-25 08:31:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-09-25 08:31:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-09-25 08:31:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-09-25 08:31:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-09-25 08:31:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-09-25 08:31:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:31:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:31:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:31:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 08:31:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:31:07,841 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 08:31:08,872 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-09-25 08:31:09,210 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:31:09,210 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 08:31:09,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:31:09 BoogieIcfgContainer [2020-09-25 08:31:09,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:31:09,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:31:09,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:31:09,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:31:09,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:31:04" (1/3) ... [2020-09-25 08:31:09,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76de24ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:31:09, skipping insertion in model container [2020-09-25 08:31:09,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:31:06" (2/3) ... [2020-09-25 08:31:09,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76de24ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:31:09, skipping insertion in model container [2020-09-25 08:31:09,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:31:09" (3/3) ... [2020-09-25 08:31:09,232 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-25 08:31:09,245 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:31:09,257 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:31:09,283 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:31:09,323 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:31:09,323 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:31:09,323 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:31:09,323 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:31:09,323 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:31:09,324 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:31:09,324 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:31:09,324 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:31:09,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2020-09-25 08:31:09,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 08:31:09,382 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:31:09,384 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:31:09,385 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:31:09,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:31:09,393 INFO L82 PathProgramCache]: Analyzing trace with hash -126969232, now seen corresponding path program 1 times [2020-09-25 08:31:09,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:31:09,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655716093] [2020-09-25 08:31:09,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:31:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:10,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:10,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:10,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:13,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:14,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:14,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-25 08:31:14,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:31:14,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 08:31:14,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:14,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:14,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:14,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-25 08:31:14,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-25 08:31:14,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:31:15,971 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:31:15,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:16,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:16,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:16,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 08:31:16,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:16,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-09-25 08:31:16,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:16,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:16,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:16,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:16,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 08:31:16,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:16,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 08:31:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:16,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:16,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:16,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:31:16,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:16,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 08:31:16,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:16,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:16,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:16,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:16,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:31:16,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:16,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:31:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:16,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:17,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:17,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:31:17,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:17,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 08:31:17,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:17,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:17,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:17,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:17,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:31:17,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:17,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:31:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:17,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:17,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:17,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:31:17,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:17,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 08:31:17,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:17,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:31:17,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:17,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:31:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:17,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:17,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:17,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:17,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:31:17,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:31:17,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-25 08:31:17,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:17,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:17,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:17,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:17,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:31:17,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:17,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 08:31:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:17,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:17,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:17,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:17,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:31:17,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:31:17,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 08:31:17,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:17,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:17,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 08:31:17,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:31:17,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:31:17,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:17,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 08:31:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:17,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:17,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:17,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:31:17,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:17,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 08:31:17,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:17,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:17,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:31:17,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:17,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:17,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:18,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:18,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:31:18,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:18,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 08:31:18,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:18,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:18,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:18,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:18,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:18,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:18,152 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 08:31:18,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655716093] [2020-09-25 08:31:18,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:31:18,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:31:18,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040243272] [2020-09-25 08:31:18,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:31:18,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:31:18,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:31:18,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:31:18,190 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 9 states. [2020-09-25 08:31:18,553 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 08:31:19,683 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 08:31:20,095 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:31:20,830 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-09-25 08:31:21,166 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-09-25 08:31:21,517 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:31:28,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:31:28,134 INFO L93 Difference]: Finished difference Result 2165 states and 2512 transitions. [2020-09-25 08:31:28,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 08:31:28,136 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-25 08:31:28,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:31:28,167 INFO L225 Difference]: With dead ends: 2165 [2020-09-25 08:31:28,168 INFO L226 Difference]: Without dead ends: 1173 [2020-09-25 08:31:28,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2020-09-25 08:31:28,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2020-09-25 08:31:28,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1061. [2020-09-25 08:31:28,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1061 states. [2020-09-25 08:31:28,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1182 transitions. [2020-09-25 08:31:28,373 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1182 transitions. Word has length 190 [2020-09-25 08:31:28,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:31:28,374 INFO L479 AbstractCegarLoop]: Abstraction has 1061 states and 1182 transitions. [2020-09-25 08:31:28,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:31:28,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1182 transitions. [2020-09-25 08:31:28,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 08:31:28,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:31:28,380 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:31:28,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:31:28,381 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:31:28,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:31:28,382 INFO L82 PathProgramCache]: Analyzing trace with hash -978144985, now seen corresponding path program 1 times [2020-09-25 08:31:28,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:31:28,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321526399] [2020-09-25 08:31:28,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:31:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:28,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:29,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:29,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:29,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-09-25 08:31:29,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:31:29,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1163 [2020-09-25 08:31:29,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:29,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 08:31:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-25 08:31:29,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:30,380 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:31:30,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:30,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:30,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:30,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 08:31:30,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:30,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-09-25 08:31:30,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:30,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:30,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:30,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:30,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 08:31:30,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:30,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 08:31:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:30,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:30,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:30,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:31:30,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:30,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 08:31:30,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:30,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:30,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:30,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:30,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:31:30,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:31,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:31:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:31,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:31,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:31,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:31:31,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:31,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 08:31:31,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:31,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:31:31,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:31,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:31:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:31,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:31,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:31,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:31:31,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:31,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 08:31:31,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:31,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:31,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:31,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:31,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:31:31,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:31,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:31:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:31,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:31,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:31,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:31:31,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:31,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 08:31:31,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:31,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:31,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:31,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:31,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:31:31,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:31,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 08:31:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:31,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:31,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:31,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:31:31,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:31,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 08:31:31,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:31,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:31,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:31,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:31,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:31:31,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:31,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 08:31:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:31,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:31,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:31,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:31:31,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:31,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 08:31:31,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:31,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:31,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:31:31,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:31,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:31,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:31,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:31,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:31:31,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:31,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 08:31:31,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:31,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:31,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:31,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:31,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:31,758 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 08:31:31,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321526399] [2020-09-25 08:31:31,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:31:31,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:31:31,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719375809] [2020-09-25 08:31:31,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:31:31,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:31:31,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:31:31,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:31:31,767 INFO L87 Difference]: Start difference. First operand 1061 states and 1182 transitions. Second operand 7 states. [2020-09-25 08:31:32,021 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 08:31:32,697 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 08:31:33,036 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:31:38,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:31:38,344 INFO L93 Difference]: Finished difference Result 1173 states and 1320 transitions. [2020-09-25 08:31:38,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:31:38,346 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-09-25 08:31:38,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:31:38,354 INFO L225 Difference]: With dead ends: 1173 [2020-09-25 08:31:38,355 INFO L226 Difference]: Without dead ends: 1170 [2020-09-25 08:31:38,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:31:38,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2020-09-25 08:31:38,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1060. [2020-09-25 08:31:38,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2020-09-25 08:31:38,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1180 transitions. [2020-09-25 08:31:38,440 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1180 transitions. Word has length 199 [2020-09-25 08:31:38,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:31:38,441 INFO L479 AbstractCegarLoop]: Abstraction has 1060 states and 1180 transitions. [2020-09-25 08:31:38,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:31:38,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1180 transitions. [2020-09-25 08:31:38,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 08:31:38,444 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:31:38,444 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:31:38,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:31:38,444 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:31:38,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:31:38,445 INFO L82 PathProgramCache]: Analyzing trace with hash -258228913, now seen corresponding path program 1 times [2020-09-25 08:31:38,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:31:38,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655540261] [2020-09-25 08:31:38,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:31:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:38,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:39,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:39,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:39,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-09-25 08:31:39,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:31:39,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1072 [2020-09-25 08:31:39,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:39,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:39,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:39,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 08:31:39,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-25 08:31:39,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:40,178 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:31:40,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:40,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:40,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:40,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 08:31:40,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:40,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-09-25 08:31:40,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:40,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:40,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:40,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:40,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 08:31:40,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:40,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 08:31:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:40,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:40,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:40,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:31:40,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:40,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 08:31:40,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:40,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:40,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:31:40,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:40,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:31:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:40,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:40,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:40,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:31:40,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:40,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 08:31:40,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:40,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:40,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:40,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:40,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:31:40,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:40,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:31:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:40,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:40,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:40,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:31:40,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:40,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 08:31:40,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:40,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:40,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:40,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:31:40,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:40,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:31:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:40,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:41,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:41,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:31:41,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:41,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 08:31:41,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:41,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:41,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:41,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:41,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:31:41,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:41,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 08:31:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:41,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:41,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:41,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:31:41,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:41,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 08:31:41,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:41,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:41,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:41,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:31:41,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:41,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 08:31:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:41,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:41,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:41,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:31:41,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:41,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 08:31:41,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:41,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:41,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:31:41,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:41,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:41,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:41,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:41,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:31:41,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:41,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 08:31:41,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:41,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:41,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:41,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:41,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:41,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:41,395 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 08:31:41,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655540261] [2020-09-25 08:31:41,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:31:41,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:31:41,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291865135] [2020-09-25 08:31:41,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:31:41,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:31:41,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:31:41,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:31:41,398 INFO L87 Difference]: Start difference. First operand 1060 states and 1180 transitions. Second operand 6 states. [2020-09-25 08:31:41,643 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 08:31:42,446 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 08:31:42,843 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:31:48,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:31:48,115 INFO L93 Difference]: Finished difference Result 1172 states and 1318 transitions. [2020-09-25 08:31:48,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:31:48,125 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2020-09-25 08:31:48,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:31:48,132 INFO L225 Difference]: With dead ends: 1172 [2020-09-25 08:31:48,132 INFO L226 Difference]: Without dead ends: 1169 [2020-09-25 08:31:48,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:31:48,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2020-09-25 08:31:48,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1059. [2020-09-25 08:31:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1059 states. [2020-09-25 08:31:48,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1178 transitions. [2020-09-25 08:31:48,206 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1178 transitions. Word has length 200 [2020-09-25 08:31:48,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:31:48,207 INFO L479 AbstractCegarLoop]: Abstraction has 1059 states and 1178 transitions. [2020-09-25 08:31:48,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:31:48,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1178 transitions. [2020-09-25 08:31:48,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 08:31:48,210 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:31:48,210 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:31:48,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:31:48,211 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:31:48,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:31:48,211 INFO L82 PathProgramCache]: Analyzing trace with hash 584337706, now seen corresponding path program 1 times [2020-09-25 08:31:48,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:31:48,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065577695] [2020-09-25 08:31:48,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:31:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:48,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:48,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:49,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:49,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-09-25 08:31:49,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:31:49,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 965 [2020-09-25 08:31:49,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:49,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-25 08:31:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-09-25 08:31:49,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:49,962 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:31:49,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:50,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:50,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:50,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 08:31:50,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:50,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-09-25 08:31:50,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:50,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:50,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:50,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:50,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 08:31:50,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:50,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 08:31:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:50,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:50,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:50,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:31:50,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:50,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 08:31:50,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:50,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:50,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:50,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:50,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:31:50,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:50,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:31:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:50,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:50,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:50,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 08:31:50,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:50,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 08:31:50,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:50,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:31:50,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:50,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:31:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:50,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:50,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:50,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:31:50,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:50,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 08:31:50,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:50,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:50,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:50,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:50,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:31:50,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:31:50,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 08:31:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:50,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:50,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:50,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:31:50,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:50,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 08:31:50,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:50,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:31:50,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:50,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 08:31:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:50,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:50,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:50,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:31:50,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:50,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 08:31:50,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:50,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:50,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:50,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:50,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 08:31:50,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:51,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 08:31:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:51,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:51,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:51,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:31:51,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:51,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 08:31:51,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:51,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:31:51,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:51,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:51,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:51,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:51,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:31:51,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:51,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 08:31:51,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:51,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:51,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:51,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:51,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:51,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:51,286 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 08:31:51,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065577695] [2020-09-25 08:31:51,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:31:51,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:31:51,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394111932] [2020-09-25 08:31:51,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:31:51,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:31:51,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:31:51,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:31:51,291 INFO L87 Difference]: Start difference. First operand 1059 states and 1178 transitions. Second operand 6 states. [2020-09-25 08:31:51,536 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 08:31:52,294 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 198