./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_2_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_2_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 58b0bff7f891a8a83e35dcd20899c15cbf58d26f91f5ac96097a2d74a3fdc175 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:37:22,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:37:22,678 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:37:22,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:37:22,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:37:22,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:37:22,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:37:22,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:37:22,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:37:22,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:37:22,724 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:37:22,724 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:37:22,724 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:37:22,724 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:37:22,724 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:37:22,724 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:37:22,724 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:37:22,724 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:37:22,724 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:37:22,725 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:37:22,725 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:37:22,725 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:37:22,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:37:22,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:37:22,728 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:37:22,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:37:22,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:37:22,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:37:22,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:37:22,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:37:22,728 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:37:22,728 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:37:22,728 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:37:22,728 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:37:22,728 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:37:22,729 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:37:22,729 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:37:22,729 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:37:22,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:37:22,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:37:22,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:37:22,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:37:22,729 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:37:22,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:37:22,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:37:22,729 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:37:22,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:37:22,729 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58b0bff7f891a8a83e35dcd20899c15cbf58d26f91f5ac96097a2d74a3fdc175 [2024-11-13 23:37:23,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:37:23,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:37:23,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:37:23,072 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:37:23,072 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:37:23,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_2_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-13 23:37:25,090 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:37:25,667 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:37:25,668 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_2_safe.c-amalgamation.i [2024-11-13 23:37:25,703 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/data/4e38ede24/adf6fbcc6a084f3fbfcc38f172b4710c/FLAGbe02debcf [2024-11-13 23:37:25,732 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/data/4e38ede24/adf6fbcc6a084f3fbfcc38f172b4710c [2024-11-13 23:37:25,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:37:25,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:37:25,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:37:25,740 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:37:25,749 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:37:25,750 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:37:25" (1/1) ... [2024-11-13 23:37:25,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@260f5af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:25, skipping insertion in model container [2024-11-13 23:37:25,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:37:25" (1/1) ... [2024-11-13 23:37:25,840 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:37:27,089 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3128) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1503) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:253) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:3192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:3036) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:144) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1237) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:215) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1638) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3515) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2508) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:642) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-13 23:37:27,098 INFO L158 Benchmark]: Toolchain (without parser) took 1359.86ms. Allocated memory is still 117.4MB. Free memory was 87.7MB in the beginning and 67.9MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:37:27,099 INFO L158 Benchmark]: CDTParser took 1.05ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:37:27,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1356.27ms. Allocated memory is still 117.4MB. Free memory was 87.5MB in the beginning and 67.9MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:37:27,101 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1356.27ms. Allocated memory is still 117.4MB. Free memory was 87.5MB in the beginning and 67.9MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_2_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 58b0bff7f891a8a83e35dcd20899c15cbf58d26f91f5ac96097a2d74a3fdc175 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:37:30,139 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:37:30,296 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-13 23:37:30,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:37:30,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:37:30,345 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:37:30,346 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:37:30,347 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:37:30,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:37:30,347 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:37:30,348 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:37:30,348 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:37:30,348 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:37:30,348 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:37:30,348 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:37:30,348 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:37:30,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:37:30,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:37:30,349 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:37:30,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:37:30,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:37:30,349 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:37:30,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:37:30,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:37:30,350 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:37:30,350 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:37:30,350 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:37:30,350 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:37:30,350 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:37:30,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:37:30,351 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:37:30,351 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:37:30,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 23:37:30,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:37:30,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:37:30,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:37:30,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:37:30,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:37:30,354 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:37:30,355 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:37:30,355 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:37:30,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:37:30,355 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:37:30,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58b0bff7f891a8a83e35dcd20899c15cbf58d26f91f5ac96097a2d74a3fdc175 [2024-11-13 23:37:30,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:37:30,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:37:30,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:37:30,736 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:37:30,737 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:37:30,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_2_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-13 23:37:33,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:37:33,755 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:37:33,760 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_2_safe.c-amalgamation.i [2024-11-13 23:37:33,802 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/data/c32cec0fd/036aa450c3034f469f128f3ddf5d5c33/FLAGe5439f02c [2024-11-13 23:37:33,828 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/data/c32cec0fd/036aa450c3034f469f128f3ddf5d5c33 [2024-11-13 23:37:33,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:37:33,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:37:33,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:37:33,837 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:37:33,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:37:33,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:37:33" (1/1) ... [2024-11-13 23:37:33,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15810c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:33, skipping insertion in model container [2024-11-13 23:37:33,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:37:33" (1/1) ... [2024-11-13 23:37:33,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:37:35,325 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_2_safe.c-amalgamation.i[71465,71478] [2024-11-13 23:37:35,798 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:37:35,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:37:35,818 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:37:35,870 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/sv-benchmarks/c/neural-networks/poly_16_16_16_thresh_2_safe.c-amalgamation.i[71465,71478] [2024-11-13 23:37:36,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:37:36,423 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:37:36,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:36 WrapperNode [2024-11-13 23:37:36,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:37:36,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:37:36,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:37:36,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:37:36,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:36" (1/1) ... [2024-11-13 23:37:36,497 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:36" (1/1) ... [2024-11-13 23:37:36,652 INFO L138 Inliner]: procedures = 779, calls = 1656, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 2225 [2024-11-13 23:37:36,653 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:37:36,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:37:36,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:37:36,654 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:37:36,662 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:36" (1/1) ... [2024-11-13 23:37:36,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:36" (1/1) ... [2024-11-13 23:37:36,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:36" (1/1) ... [2024-11-13 23:37:36,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:36" (1/1) ... [2024-11-13 23:37:36,785 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:36" (1/1) ... [2024-11-13 23:37:36,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:36" (1/1) ... [2024-11-13 23:37:36,804 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:36" (1/1) ... [2024-11-13 23:37:36,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:36" (1/1) ... [2024-11-13 23:37:36,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:37:36,846 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:37:36,846 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:37:36,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:37:36,847 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:36" (1/1) ... [2024-11-13 23:37:36,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:37:36,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:37:36,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:37:36,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:37:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-13 23:37:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-13 23:37:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:37:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:37:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:37:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-13 23:37:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-13 23:37:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 23:37:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 23:37:36,919 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_idx2sub [2024-11-13 23:37:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_idx2sub [2024-11-13 23:37:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-13 23:37:36,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-13 23:37:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 23:37:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:37:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-13 23:37:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-13 23:37:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-13 23:37:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_dense [2024-11-13 23:37:36,921 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_dense [2024-11-13 23:37:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-13 23:37:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-13 23:37:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 23:37:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_sub2idx [2024-11-13 23:37:36,922 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_sub2idx [2024-11-13 23:37:37,295 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:37:37,298 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:38:00,853 INFO L? ?]: Removed 244 outVars from TransFormulas that were not future-live. [2024-11-13 23:38:00,853 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:38:00,877 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:38:00,879 INFO L316 CfgBuilder]: Removed 44 assume(true) statements. [2024-11-13 23:38:00,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:38:00 BoogieIcfgContainer [2024-11-13 23:38:00,880 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:38:00,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:38:00,883 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:38:00,889 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:38:00,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:37:33" (1/3) ... [2024-11-13 23:38:00,890 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c37d990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:38:00, skipping insertion in model container [2024-11-13 23:38:00,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:36" (2/3) ... [2024-11-13 23:38:00,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c37d990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:38:00, skipping insertion in model container [2024-11-13 23:38:00,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:38:00" (3/3) ... [2024-11-13 23:38:00,892 INFO L112 eAbstractionObserver]: Analyzing ICFG poly_16_16_16_thresh_2_safe.c-amalgamation.i [2024-11-13 23:38:00,911 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:38:00,913 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG poly_16_16_16_thresh_2_safe.c-amalgamation.i that has 6 procedures, 182 locations, 1 initial locations, 45 loop locations, and 1 error locations. [2024-11-13 23:38:01,001 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:38:01,019 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5007518f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:38:01,020 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:38:01,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 163 states have (on average 1.6809815950920246) internal successors, (274), 164 states have internal predecessors, (274), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 23:38:01,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 23:38:01,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:38:01,058 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:38:01,059 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:38:01,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:38:01,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1218545234, now seen corresponding path program 1 times [2024-11-13 23:38:01,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:38:01,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663801209] [2024-11-13 23:38:01,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:38:01,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:38:01,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:38:01,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:38:01,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 23:39:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:39:20,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 8091 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 23:39:20,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:39:20,884 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-13 23:39:20,884 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:39:20,884 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:39:20,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663801209] [2024-11-13 23:39:20,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663801209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:39:20,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:39:20,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:39:20,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33059632] [2024-11-13 23:39:20,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:39:20,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:39:20,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:39:20,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:39:20,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:39:20,921 INFO L87 Difference]: Start difference. First operand has 182 states, 163 states have (on average 1.6809815950920246) internal successors, (274), 164 states have internal predecessors, (274), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 23:39:20,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:39:20,996 INFO L93 Difference]: Finished difference Result 361 states and 602 transitions. [2024-11-13 23:39:20,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:39:21,000 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 108 [2024-11-13 23:39:21,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:39:21,008 INFO L225 Difference]: With dead ends: 361 [2024-11-13 23:39:21,008 INFO L226 Difference]: Without dead ends: 178 [2024-11-13 23:39:21,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:39:21,017 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:39:21,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:39:21,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-13 23:39:21,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2024-11-13 23:39:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 160 states have (on average 1.4) internal successors, (224), 160 states have internal predecessors, (224), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-13 23:39:21,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 248 transitions. [2024-11-13 23:39:21,079 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 248 transitions. Word has length 108 [2024-11-13 23:39:21,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:39:21,080 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 248 transitions. [2024-11-13 23:39:21,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 23:39:21,080 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 248 transitions. [2024-11-13 23:39:21,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 23:39:21,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:39:21,085 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:39:21,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-13 23:39:21,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:39:21,286 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:39:21,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:39:21,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1426122352, now seen corresponding path program 1 times [2024-11-13 23:39:21,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:39:21,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153090368] [2024-11-13 23:39:21,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:39:21,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:39:21,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:39:21,302 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:39:21,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 23:40:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:40:44,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 8092 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:40:44,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:40:45,944 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-13 23:40:45,944 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:40:45,944 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:40:45,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153090368] [2024-11-13 23:40:45,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1153090368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:40:45,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:40:45,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:40:45,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148239644] [2024-11-13 23:40:45,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:40:45,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:40:45,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:40:45,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:40:45,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:40:45,951 INFO L87 Difference]: Start difference. First operand 178 states and 248 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 23:40:46,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:40:46,950 INFO L93 Difference]: Finished difference Result 357 states and 500 transitions. [2024-11-13 23:40:46,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:40:46,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 108 [2024-11-13 23:40:46,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:40:46,955 INFO L225 Difference]: With dead ends: 357 [2024-11-13 23:40:46,955 INFO L226 Difference]: Without dead ends: 184 [2024-11-13 23:40:46,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:40:46,958 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 212 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:40:46,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 748 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 23:40:46,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-13 23:40:46,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-11-13 23:40:46,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 164 states have (on average 1.3902439024390243) internal successors, (228), 164 states have internal predecessors, (228), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-13 23:40:46,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2024-11-13 23:40:46,984 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 255 transitions. Word has length 108 [2024-11-13 23:40:46,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:40:46,985 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 255 transitions. [2024-11-13 23:40:46,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 23:40:46,985 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 255 transitions. [2024-11-13 23:40:46,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-13 23:40:46,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:40:46,993 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:40:47,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-13 23:40:47,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:40:47,193 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:40:47,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:40:47,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1579716736, now seen corresponding path program 1 times [2024-11-13 23:40:47,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:40:47,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964575399] [2024-11-13 23:40:47,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:40:47,205 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:40:47,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:40:47,207 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:40:47,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-13 23:42:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:42:07,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 8096 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:42:07,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:42:08,642 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-13 23:42:08,643 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:42:08,643 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:42:08,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964575399] [2024-11-13 23:42:08,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964575399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:42:08,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:42:08,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:42:08,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997136038] [2024-11-13 23:42:08,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:42:08,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:42:08,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:42:08,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:42:08,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:42:08,648 INFO L87 Difference]: Start difference. First operand 184 states and 255 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 23:42:09,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:42:09,906 INFO L93 Difference]: Finished difference Result 369 states and 514 transitions. [2024-11-13 23:42:09,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:42:09,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 112 [2024-11-13 23:42:09,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:42:09,910 INFO L225 Difference]: With dead ends: 369 [2024-11-13 23:42:09,910 INFO L226 Difference]: Without dead ends: 190 [2024-11-13 23:42:09,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:42:09,912 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 208 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:42:09,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 757 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 23:42:09,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-13 23:42:09,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2024-11-13 23:42:09,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 164 states have (on average 1.3902439024390243) internal successors, (228), 164 states have internal predecessors, (228), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-13 23:42:09,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2024-11-13 23:42:09,941 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 255 transitions. Word has length 112 [2024-11-13 23:42:09,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:42:09,941 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 255 transitions. [2024-11-13 23:42:09,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 23:42:09,942 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 255 transitions. [2024-11-13 23:42:09,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 23:42:09,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:42:09,945 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:42:10,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-13 23:42:10,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:42:10,146 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:42:10,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:42:10,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1732712250, now seen corresponding path program 1 times [2024-11-13 23:42:10,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:42:10,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262012857] [2024-11-13 23:42:10,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:42:10,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:42:10,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:42:10,155 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:42:10,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-13 23:43:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:43:37,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 8101 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:43:37,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:43:38,401 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-13 23:43:38,402 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:43:38,402 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:43:38,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262012857] [2024-11-13 23:43:38,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262012857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:43:38,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:43:38,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:43:38,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088125217] [2024-11-13 23:43:38,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:43:38,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:43:38,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:43:38,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:43:38,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:43:38,405 INFO L87 Difference]: Start difference. First operand 184 states and 255 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 23:43:39,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:43:39,565 INFO L93 Difference]: Finished difference Result 369 states and 514 transitions. [2024-11-13 23:43:39,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:43:39,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 117 [2024-11-13 23:43:39,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:43:39,568 INFO L225 Difference]: With dead ends: 369 [2024-11-13 23:43:39,569 INFO L226 Difference]: Without dead ends: 190 [2024-11-13 23:43:39,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:43:39,572 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 333 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:43:39,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 757 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 23:43:39,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-13 23:43:39,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2024-11-13 23:43:39,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 164 states have (on average 1.3902439024390243) internal successors, (228), 164 states have internal predecessors, (228), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-13 23:43:39,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2024-11-13 23:43:39,605 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 255 transitions. Word has length 117 [2024-11-13 23:43:39,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:43:39,606 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 255 transitions. [2024-11-13 23:43:39,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 23:43:39,606 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 255 transitions. [2024-11-13 23:43:39,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-13 23:43:39,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:43:39,613 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:43:39,813 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forcibly destroying the process [2024-11-13 23:43:39,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 137 [2024-11-13 23:43:39,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:43:39,862 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:43:39,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:43:39,863 INFO L85 PathProgramCache]: Analyzing trace with hash 423762582, now seen corresponding path program 1 times [2024-11-13 23:43:39,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:43:39,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607970389] [2024-11-13 23:43:39,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:43:39,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:43:39,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:43:39,877 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:43:39,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-13 23:45:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:07,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 8104 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:45:07,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:08,588 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 23:45:08,588 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:08,588 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:08,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607970389] [2024-11-13 23:45:08,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607970389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:08,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:08,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:45:08,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874874373] [2024-11-13 23:45:08,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:08,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:45:08,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:08,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:45:08,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:45:08,594 INFO L87 Difference]: Start difference. First operand 184 states and 255 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 23:45:09,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:09,797 INFO L93 Difference]: Finished difference Result 369 states and 514 transitions. [2024-11-13 23:45:09,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:45:09,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 120 [2024-11-13 23:45:09,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:09,801 INFO L225 Difference]: With dead ends: 369 [2024-11-13 23:45:09,801 INFO L226 Difference]: Without dead ends: 190 [2024-11-13 23:45:09,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:45:09,808 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 332 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:09,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 757 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 23:45:09,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-13 23:45:09,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2024-11-13 23:45:09,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 164 states have (on average 1.3902439024390243) internal successors, (228), 164 states have internal predecessors, (228), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-13 23:45:09,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2024-11-13 23:45:09,840 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 255 transitions. Word has length 120 [2024-11-13 23:45:09,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:09,842 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 255 transitions. [2024-11-13 23:45:09,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 23:45:09,842 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 255 transitions. [2024-11-13 23:45:09,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-13 23:45:09,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:09,845 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:45:10,045 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forcibly destroying the process [2024-11-13 23:45:10,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 137 [2024-11-13 23:45:10,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:45:10,055 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:10,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:10,056 INFO L85 PathProgramCache]: Analyzing trace with hash 683850940, now seen corresponding path program 1 times [2024-11-13 23:45:10,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:10,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893492177] [2024-11-13 23:45:10,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:10,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:45:10,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:10,066 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:45:10,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-13 23:46:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:32,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 8112 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:46:33,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:33,892 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-13 23:46:33,892 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:46:33,892 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:46:33,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893492177] [2024-11-13 23:46:33,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893492177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:33,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:33,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:46:33,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656754970] [2024-11-13 23:46:33,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:33,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:46:33,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:46:33,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:46:33,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:46:33,894 INFO L87 Difference]: Start difference. First operand 184 states and 255 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 23:46:34,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:34,851 INFO L93 Difference]: Finished difference Result 369 states and 514 transitions. [2024-11-13 23:46:34,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:46:34,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 128 [2024-11-13 23:46:34,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:34,854 INFO L225 Difference]: With dead ends: 369 [2024-11-13 23:46:34,854 INFO L226 Difference]: Without dead ends: 190 [2024-11-13 23:46:34,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:46:34,856 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 336 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:34,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 752 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 23:46:34,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-13 23:46:34,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2024-11-13 23:46:34,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 164 states have (on average 1.3902439024390243) internal successors, (228), 164 states have internal predecessors, (228), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-13 23:46:34,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2024-11-13 23:46:34,870 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 255 transitions. Word has length 128 [2024-11-13 23:46:34,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:34,870 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 255 transitions. [2024-11-13 23:46:34,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 23:46:34,871 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 255 transitions. [2024-11-13 23:46:34,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-13 23:46:34,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:34,873 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:35,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-13 23:46:35,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:46:35,074 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:46:35,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:35,074 INFO L85 PathProgramCache]: Analyzing trace with hash -531298836, now seen corresponding path program 1 times [2024-11-13 23:46:35,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:46:35,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78141538] [2024-11-13 23:46:35,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:35,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:46:35,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:46:35,082 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:46:35,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-13 23:47:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:46,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 8104 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 23:47:46,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:47:47,540 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-13 23:47:47,540 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:47:47,540 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:47:47,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78141538] [2024-11-13 23:47:47,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [78141538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:47:47,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:47:47,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:47:47,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63015926] [2024-11-13 23:47:47,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:47:47,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:47:47,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:47:47,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:47:47,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:47:47,543 INFO L87 Difference]: Start difference. First operand 184 states and 255 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 23:47:48,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:47:48,465 INFO L93 Difference]: Finished difference Result 369 states and 514 transitions. [2024-11-13 23:47:48,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:47:48,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 128 [2024-11-13 23:47:48,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:47:48,468 INFO L225 Difference]: With dead ends: 369 [2024-11-13 23:47:48,468 INFO L226 Difference]: Without dead ends: 190 [2024-11-13 23:47:48,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:47:48,469 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 200 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:47:48,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 702 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 23:47:48,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-13 23:47:48,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2024-11-13 23:47:48,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 164 states have (on average 1.3902439024390243) internal successors, (228), 164 states have internal predecessors, (228), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-13 23:47:48,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2024-11-13 23:47:48,486 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 255 transitions. Word has length 128 [2024-11-13 23:47:48,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:47:48,486 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 255 transitions. [2024-11-13 23:47:48,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 23:47:48,486 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 255 transitions. [2024-11-13 23:47:48,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-13 23:47:48,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:47:48,488 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:47:48,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-13 23:47:48,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:47:48,689 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:47:48,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:47:48,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1165177195, now seen corresponding path program 1 times [2024-11-13 23:47:48,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:47:48,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388994900] [2024-11-13 23:47:48,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:48,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:47:48,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:47:48,696 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:47:48,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-13 23:49:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:49:04,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 8110 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:49:04,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:49:05,898 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-13 23:49:05,898 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:49:05,898 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:49:05,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [388994900] [2024-11-13 23:49:05,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [388994900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:49:05,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:49:05,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:49:05,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558007842] [2024-11-13 23:49:05,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:49:05,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:49:05,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:49:05,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:49:05,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:49:05,900 INFO L87 Difference]: Start difference. First operand 184 states and 255 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 23:49:06,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:49:06,734 INFO L93 Difference]: Finished difference Result 195 states and 266 transitions. [2024-11-13 23:49:06,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:49:06,735 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 126 [2024-11-13 23:49:06,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:49:06,737 INFO L225 Difference]: With dead ends: 195 [2024-11-13 23:49:06,737 INFO L226 Difference]: Without dead ends: 181 [2024-11-13 23:49:06,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:49:06,738 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 197 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:49:06,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 754 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 23:49:06,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-13 23:49:06,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-13 23:49:06,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 161 states have (on average 1.3850931677018634) internal successors, (223), 161 states have internal predecessors, (223), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-13 23:49:06,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 250 transitions. [2024-11-13 23:49:06,757 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 250 transitions. Word has length 126 [2024-11-13 23:49:06,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:49:06,758 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 250 transitions. [2024-11-13 23:49:06,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 23:49:06,758 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 250 transitions. [2024-11-13 23:49:06,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 23:49:06,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:49:06,760 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:49:06,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-13 23:49:06,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:49:06,961 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:49:06,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:49:06,961 INFO L85 PathProgramCache]: Analyzing trace with hash 121039056, now seen corresponding path program 1 times [2024-11-13 23:49:06,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:49:06,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351083222] [2024-11-13 23:49:06,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:49:06,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:49:06,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:49:06,968 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:49:06,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-13 23:50:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:50:29,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 8116 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:50:29,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:50:31,112 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-13 23:50:31,112 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:50:31,112 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:50:31,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351083222] [2024-11-13 23:50:31,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351083222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:50:31,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:50:31,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:50:31,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239293882] [2024-11-13 23:50:31,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:50:31,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:50:31,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:50:31,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:50:31,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:50:31,114 INFO L87 Difference]: Start difference. First operand 181 states and 250 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 23:50:31,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:50:31,972 INFO L93 Difference]: Finished difference Result 186 states and 254 transitions. [2024-11-13 23:50:31,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:50:31,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 132 [2024-11-13 23:50:31,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:50:31,975 INFO L225 Difference]: With dead ends: 186 [2024-11-13 23:50:31,975 INFO L226 Difference]: Without dead ends: 181 [2024-11-13 23:50:31,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:50:31,976 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 321 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:50:31,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 741 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 23:50:31,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-13 23:50:31,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-13 23:50:31,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 161 states have (on average 1.3850931677018634) internal successors, (223), 161 states have internal predecessors, (223), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-13 23:50:31,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 249 transitions. [2024-11-13 23:50:31,998 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 249 transitions. Word has length 132 [2024-11-13 23:50:31,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:50:31,998 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 249 transitions. [2024-11-13 23:50:31,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 23:50:31,999 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 249 transitions. [2024-11-13 23:50:32,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 23:50:32,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:50:32,001 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:50:32,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-13 23:50:32,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:50:32,202 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:50:32,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:50:32,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1183454891, now seen corresponding path program 1 times [2024-11-13 23:50:32,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:50:32,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417808753] [2024-11-13 23:50:32,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:50:32,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:50:32,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:50:32,211 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:50:32,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-13 23:51:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:51:46,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 8111 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:51:46,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:51:48,168 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-13 23:51:48,168 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:51:48,169 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:51:48,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417808753] [2024-11-13 23:51:48,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417808753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:51:48,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:51:48,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:51:48,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302576075] [2024-11-13 23:51:48,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:51:48,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:51:48,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:51:48,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:51:48,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:51:48,170 INFO L87 Difference]: Start difference. First operand 181 states and 249 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 23:51:48,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:51:48,987 INFO L93 Difference]: Finished difference Result 192 states and 260 transitions. [2024-11-13 23:51:48,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:51:48,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 127 [2024-11-13 23:51:48,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:51:48,990 INFO L225 Difference]: With dead ends: 192 [2024-11-13 23:51:48,990 INFO L226 Difference]: Without dead ends: 178 [2024-11-13 23:51:48,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:51:48,991 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 317 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:51:48,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 735 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 23:51:48,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-13 23:51:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2024-11-13 23:51:49,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 158 states have (on average 1.379746835443038) internal successors, (218), 158 states have internal predecessors, (218), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-13 23:51:49,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 244 transitions. [2024-11-13 23:51:49,010 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 244 transitions. Word has length 127 [2024-11-13 23:51:49,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:51:49,010 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 244 transitions. [2024-11-13 23:51:49,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 23:51:49,011 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 244 transitions. [2024-11-13 23:51:49,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 23:51:49,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:51:49,013 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:51:49,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-13 23:51:49,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:51:49,214 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:51:49,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:51:49,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1639661005, now seen corresponding path program 1 times [2024-11-13 23:51:49,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:51:49,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052891571] [2024-11-13 23:51:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:51:49,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:51:49,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:51:49,222 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:51:49,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67627d48-7ca9-4713-b152-b1e14385694e/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process