./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_0_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_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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_a3e99f32-f519-4a42-abf2-afbc056c6248/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 01feab1cda213fc4156f4b764527f557d8841897d1cf58d754d865817dde8691 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:25:26,879 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:25:26,988 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:25:26,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:25:26,998 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:25:27,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:25:27,051 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:25:27,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:25:27,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:25:27,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:25:27,054 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:25:27,055 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:25:27,055 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:25:27,056 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:25:27,056 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:25:27,056 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:25:27,056 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:25:27,056 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:25:27,056 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:25:27,056 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:25:27,056 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:25:27,057 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:25:27,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:25:27,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:25:27,058 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:25:27,058 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:25:27,058 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:25:27,059 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:25:27,059 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:25:27,059 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:25:27,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:25:27,059 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:25:27,059 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:25:27,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:25:27,060 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:25:27,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:25:27,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:25:27,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:25:27,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:25:27,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:25:27,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:25:27,062 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:25:27,062 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:25:27,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:25:27,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:25:27,062 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:25:27,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:25:27,062 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_a3e99f32-f519-4a42-abf2-afbc056c6248/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 -> 01feab1cda213fc4156f4b764527f557d8841897d1cf58d754d865817dde8691 [2024-11-14 05:25:27,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:25:27,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:25:27,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:25:27,460 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:25:27,462 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:25:27,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_0_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-14 05:25:29,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:25:30,334 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:25:30,338 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_0_safe.c-amalgamation.i [2024-11-14 05:25:30,385 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/data/a96eded27/2ff6ac4636d5458585f409618121989d/FLAGa1af36dbd [2024-11-14 05:25:30,412 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/data/a96eded27/2ff6ac4636d5458585f409618121989d [2024-11-14 05:25:30,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:25:30,418 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:25:30,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:25:30,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:25:30,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:25:30,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:25:30" (1/1) ... [2024-11-14 05:25:30,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@892deb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:30, skipping insertion in model container [2024-11-14 05:25:30,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:25:30" (1/1) ... [2024-11-14 05:25:30,498 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:25:31,866 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-14 05:25:31,883 INFO L158 Benchmark]: Toolchain (without parser) took 1460.95ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 101.1MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 05:25:31,884 INFO L158 Benchmark]: CDTParser took 1.78ms. Allocated memory is still 167.8MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:25:31,885 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1457.59ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 101.1MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 05:25:31,886 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.78ms. Allocated memory is still 167.8MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1457.59ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 101.1MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. 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_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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_a3e99f32-f519-4a42-abf2-afbc056c6248/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 01feab1cda213fc4156f4b764527f557d8841897d1cf58d754d865817dde8691 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:25:35,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:25:35,142 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:25:35,153 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:25:35,153 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:25:35,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:25:35,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:25:35,199 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:25:35,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:25:35,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:25:35,200 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:25:35,200 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:25:35,200 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:25:35,200 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:25:35,201 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:25:35,201 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:25:35,201 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:25:35,201 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:25:35,201 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:25:35,202 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:25:35,202 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:25:35,202 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:25:35,202 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:25:35,202 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:25:35,204 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:25:35,204 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:25:35,204 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:25:35,204 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:25:35,205 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:25:35,205 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:25:35,205 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:25:35,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:25:35,205 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:25:35,205 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:25:35,206 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:25:35,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:25:35,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:25:35,207 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:25:35,207 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:25:35,207 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:25:35,207 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:25:35,207 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:25:35,207 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:25:35,207 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_a3e99f32-f519-4a42-abf2-afbc056c6248/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 -> 01feab1cda213fc4156f4b764527f557d8841897d1cf58d754d865817dde8691 [2024-11-14 05:25:35,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:25:35,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:25:35,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:25:35,613 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:25:35,615 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:25:35,617 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_0_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-14 05:25:37,730 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:25:38,161 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:25:38,162 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_0_safe.c-amalgamation.i [2024-11-14 05:25:38,222 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/data/a2661ec25/66b0a44f134442beb055a435ff355c52/FLAGa814a6947 [2024-11-14 05:25:38,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/data/a2661ec25/66b0a44f134442beb055a435ff355c52 [2024-11-14 05:25:38,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:25:38,253 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:25:38,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:25:38,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:25:38,262 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:25:38,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:25:38" (1/1) ... [2024-11-14 05:25:38,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bef78e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:38, skipping insertion in model container [2024-11-14 05:25:38,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:25:38" (1/1) ... [2024-11-14 05:25:38,353 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:25:39,737 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_a3e99f32-f519-4a42-abf2-afbc056c6248/sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_0_safe.c-amalgamation.i[71467,71480] [2024-11-14 05:25:40,238 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:25:40,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:25:40,267 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:25:40,386 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_a3e99f32-f519-4a42-abf2-afbc056c6248/sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_0_safe.c-amalgamation.i[71467,71480] [2024-11-14 05:25:40,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:25:40,917 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:25:40,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:40 WrapperNode [2024-11-14 05:25:40,918 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:25:40,919 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:25:40,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:25:40,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:25:40,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:40" (1/1) ... [2024-11-14 05:25:40,980 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:40" (1/1) ... [2024-11-14 05:25:41,114 INFO L138 Inliner]: procedures = 779, calls = 784, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1348 [2024-11-14 05:25:41,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:25:41,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:25:41,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:25:41,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:25:41,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:40" (1/1) ... [2024-11-14 05:25:41,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:40" (1/1) ... [2024-11-14 05:25:41,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:40" (1/1) ... [2024-11-14 05:25:41,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:40" (1/1) ... [2024-11-14 05:25:41,234 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:40" (1/1) ... [2024-11-14 05:25:41,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:40" (1/1) ... [2024-11-14 05:25:41,268 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:40" (1/1) ... [2024-11-14 05:25:41,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:40" (1/1) ... [2024-11-14 05:25:41,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:25:41,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:25:41,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:25:41,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:25:41,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:40" (1/1) ... [2024-11-14 05:25:41,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:25:41,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:25:41,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:25:41,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:25:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-14 05:25:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-14 05:25:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:25:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:25:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:25:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 05:25:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 05:25:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:25:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:25:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_idx2sub [2024-11-14 05:25:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_idx2sub [2024-11-14 05:25:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-14 05:25:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-14 05:25:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:25:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:25:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-14 05:25:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-14 05:25:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 05:25:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_dense [2024-11-14 05:25:41,394 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_dense [2024-11-14 05:25:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-14 05:25:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 05:25:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 05:25:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_sub2idx [2024-11-14 05:25:41,394 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_sub2idx [2024-11-14 05:25:41,837 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:25:41,841 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:26:02,475 INFO L? ?]: Removed 244 outVars from TransFormulas that were not future-live. [2024-11-14 05:26:02,475 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:26:02,493 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:26:02,493 INFO L316 CfgBuilder]: Removed 44 assume(true) statements. [2024-11-14 05:26:02,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:26:02 BoogieIcfgContainer [2024-11-14 05:26:02,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:26:02,496 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:26:02,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:26:02,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:26:02,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:25:38" (1/3) ... [2024-11-14 05:26:02,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0845fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:26:02, skipping insertion in model container [2024-11-14 05:26:02,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:40" (2/3) ... [2024-11-14 05:26:02,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0845fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:26:02, skipping insertion in model container [2024-11-14 05:26:02,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:26:02" (3/3) ... [2024-11-14 05:26:02,506 INFO L112 eAbstractionObserver]: Analyzing ICFG poly_8_8_8_thresh_0_safe.c-amalgamation.i [2024-11-14 05:26:02,524 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:26:02,526 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG poly_8_8_8_thresh_0_safe.c-amalgamation.i that has 6 procedures, 182 locations, 1 initial locations, 45 loop locations, and 1 error locations. [2024-11-14 05:26:02,606 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:26:02,624 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;@7fbbe797, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:26:02,624 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:26:02,630 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) [2024-11-14 05:26:02,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 05:26:02,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:02,659 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] [2024-11-14 05:26:02,660 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:02,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:02,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1218545234, now seen corresponding path program 1 times [2024-11-14 05:26:02,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:26:02,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921744011] [2024-11-14 05:26:02,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:02,693 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 [2024-11-14 05:26:02,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:26:02,700 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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) [2024-11-14 05:26:02,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:26:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:10,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 2635 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:26:10,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:10,133 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-14 05:26:10,133 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:26:10,134 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:26:10,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921744011] [2024-11-14 05:26:10,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [921744011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:26:10,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:26:10,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:26:10,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960802014] [2024-11-14 05:26:10,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:10,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:26:10,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:26:10,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:26:10,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:26:10,175 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) [2024-11-14 05:26:10,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:10,238 INFO L93 Difference]: Finished difference Result 361 states and 602 transitions. [2024-11-14 05:26:10,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:26:10,241 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 [2024-11-14 05:26:10,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:10,252 INFO L225 Difference]: With dead ends: 361 [2024-11-14 05:26:10,252 INFO L226 Difference]: Without dead ends: 178 [2024-11-14 05:26:10,259 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 [2024-11-14 05:26:10,263 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 [2024-11-14 05:26:10,264 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] [2024-11-14 05:26:10,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-14 05:26:10,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2024-11-14 05:26:10,323 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) [2024-11-14 05:26:10,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 248 transitions. [2024-11-14 05:26:10,335 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 248 transitions. Word has length 108 [2024-11-14 05:26:10,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:10,335 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 248 transitions. [2024-11-14 05:26:10,336 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) [2024-11-14 05:26:10,336 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 248 transitions. [2024-11-14 05:26:10,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 05:26:10,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:10,350 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] [2024-11-14 05:26:10,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:26:10,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:26:10,550 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:10,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:10,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1426122352, now seen corresponding path program 1 times [2024-11-14 05:26:10,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:26:10,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766373750] [2024-11-14 05:26:10,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:10,558 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 [2024-11-14 05:26:10,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:26:10,560 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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) [2024-11-14 05:26:10,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:26:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:18,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 2636 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:26:18,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 05:26:19,666 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:26:19,666 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:26:19,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766373750] [2024-11-14 05:26:19,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766373750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:26:19,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:26:19,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:26:19,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788307247] [2024-11-14 05:26:19,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:19,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:26:19,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:26:19,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:26:19,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:26:19,670 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) [2024-11-14 05:26:20,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:20,559 INFO L93 Difference]: Finished difference Result 357 states and 500 transitions. [2024-11-14 05:26:20,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:26:20,561 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 [2024-11-14 05:26:20,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:20,564 INFO L225 Difference]: With dead ends: 357 [2024-11-14 05:26:20,565 INFO L226 Difference]: Without dead ends: 184 [2024-11-14 05:26:20,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:26:20,567 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 212 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:20,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 748 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:26:20,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-14 05:26:20,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-11-14 05:26:20,595 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) [2024-11-14 05:26:20,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2024-11-14 05:26:20,598 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 255 transitions. Word has length 108 [2024-11-14 05:26:20,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:20,598 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 255 transitions. [2024-11-14 05:26:20,599 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) [2024-11-14 05:26:20,599 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 255 transitions. [2024-11-14 05:26:20,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-14 05:26:20,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:20,602 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] [2024-11-14 05:26:20,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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)] Forceful destruction successful, exit code 0 [2024-11-14 05:26:20,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:26:20,803 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:20,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:20,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1579716736, now seen corresponding path program 1 times [2024-11-14 05:26:20,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:26:20,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914286073] [2024-11-14 05:26:20,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:20,806 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 [2024-11-14 05:26:20,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:26:20,809 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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) [2024-11-14 05:26:20,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:26:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:28,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 2640 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:26:28,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:29,290 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-14 05:26:29,290 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:26:29,290 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:26:29,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914286073] [2024-11-14 05:26:29,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914286073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:26:29,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:26:29,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:26:29,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214440873] [2024-11-14 05:26:29,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:29,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:26:29,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:26:29,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:26:29,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:26:29,293 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) [2024-11-14 05:26:30,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:30,067 INFO L93 Difference]: Finished difference Result 369 states and 514 transitions. [2024-11-14 05:26:30,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:26:30,069 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 [2024-11-14 05:26:30,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:30,072 INFO L225 Difference]: With dead ends: 369 [2024-11-14 05:26:30,072 INFO L226 Difference]: Without dead ends: 190 [2024-11-14 05:26:30,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:26:30,074 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 208 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:30,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 757 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:26:30,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-14 05:26:30,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2024-11-14 05:26:30,100 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) [2024-11-14 05:26:30,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2024-11-14 05:26:30,105 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 255 transitions. Word has length 112 [2024-11-14 05:26:30,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:30,105 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 255 transitions. [2024-11-14 05:26:30,105 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) [2024-11-14 05:26:30,105 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 255 transitions. [2024-11-14 05:26:30,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-14 05:26:30,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:30,109 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] [2024-11-14 05:26:30,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:26:30,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:26:30,309 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:30,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:30,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1732712250, now seen corresponding path program 1 times [2024-11-14 05:26:30,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:26:30,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820128564] [2024-11-14 05:26:30,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:30,312 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 [2024-11-14 05:26:30,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:26:30,314 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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) [2024-11-14 05:26:30,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:26:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:37,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:26:37,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-14 05:26:37,949 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:26:37,949 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:26:37,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820128564] [2024-11-14 05:26:37,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [820128564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:26:37,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:26:37,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:26:37,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582799460] [2024-11-14 05:26:37,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:37,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:26:37,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:26:37,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:26:37,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:26:37,951 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) [2024-11-14 05:26:38,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:38,799 INFO L93 Difference]: Finished difference Result 369 states and 514 transitions. [2024-11-14 05:26:38,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:26:38,801 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 [2024-11-14 05:26:38,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:38,803 INFO L225 Difference]: With dead ends: 369 [2024-11-14 05:26:38,803 INFO L226 Difference]: Without dead ends: 190 [2024-11-14 05:26:38,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:26:38,805 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 333 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 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, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:38,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 757 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:26:38,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-14 05:26:38,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2024-11-14 05:26:38,819 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) [2024-11-14 05:26:38,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2024-11-14 05:26:38,822 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 255 transitions. Word has length 117 [2024-11-14 05:26:38,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:38,823 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 255 transitions. [2024-11-14 05:26:38,823 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) [2024-11-14 05:26:38,823 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 255 transitions. [2024-11-14 05:26:38,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-14 05:26:38,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:38,825 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] [2024-11-14 05:26:38,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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)] Ended with exit code 0 [2024-11-14 05:26:39,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:26:39,026 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:39,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:39,026 INFO L85 PathProgramCache]: Analyzing trace with hash 423762582, now seen corresponding path program 1 times [2024-11-14 05:26:39,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:26:39,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802652587] [2024-11-14 05:26:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:39,028 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 [2024-11-14 05:26:39,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:26:39,029 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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) [2024-11-14 05:26:39,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:26:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:45,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 2648 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:26:45,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:46,554 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-14 05:26:46,554 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:26:46,555 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:26:46,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802652587] [2024-11-14 05:26:46,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802652587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:26:46,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:26:46,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:26:46,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290561517] [2024-11-14 05:26:46,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:46,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:26:46,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:26:46,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:26:46,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:26:46,556 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) [2024-11-14 05:26:47,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:47,361 INFO L93 Difference]: Finished difference Result 369 states and 514 transitions. [2024-11-14 05:26:47,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:26:47,364 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 [2024-11-14 05:26:47,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:47,369 INFO L225 Difference]: With dead ends: 369 [2024-11-14 05:26:47,369 INFO L226 Difference]: Without dead ends: 190 [2024-11-14 05:26:47,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:26:47,373 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 332 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:47,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 757 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:26:47,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-14 05:26:47,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2024-11-14 05:26:47,392 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) [2024-11-14 05:26:47,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2024-11-14 05:26:47,394 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 255 transitions. Word has length 120 [2024-11-14 05:26:47,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:47,395 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 255 transitions. [2024-11-14 05:26:47,395 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) [2024-11-14 05:26:47,395 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 255 transitions. [2024-11-14 05:26:47,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 05:26:47,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:47,397 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] [2024-11-14 05:26:47,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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)] Ended with exit code 0 [2024-11-14 05:26:47,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:26:47,598 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:47,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:47,599 INFO L85 PathProgramCache]: Analyzing trace with hash 683850940, now seen corresponding path program 1 times [2024-11-14 05:26:47,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:26:47,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [724942178] [2024-11-14 05:26:47,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:47,601 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 [2024-11-14 05:26:47,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:26:47,603 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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) [2024-11-14 05:26:47,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:26:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:54,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 2656 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:26:55,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:55,750 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-14 05:26:55,750 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:26:55,750 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:26:55,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [724942178] [2024-11-14 05:26:55,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [724942178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:26:55,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:26:55,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:26:55,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267983711] [2024-11-14 05:26:55,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:55,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:26:55,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:26:55,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:26:55,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:26:55,752 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) [2024-11-14 05:26:56,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:56,561 INFO L93 Difference]: Finished difference Result 369 states and 514 transitions. [2024-11-14 05:26:56,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:26:56,563 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 [2024-11-14 05:26:56,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:56,565 INFO L225 Difference]: With dead ends: 369 [2024-11-14 05:26:56,565 INFO L226 Difference]: Without dead ends: 190 [2024-11-14 05:26:56,566 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 [2024-11-14 05:26:56,567 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 336 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:56,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 752 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:26:56,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-14 05:26:56,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2024-11-14 05:26:56,580 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) [2024-11-14 05:26:56,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2024-11-14 05:26:56,582 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 255 transitions. Word has length 128 [2024-11-14 05:26:56,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:56,582 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 255 transitions. [2024-11-14 05:26:56,583 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) [2024-11-14 05:26:56,583 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 255 transitions. [2024-11-14 05:26:56,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 05:26:56,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:56,585 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] [2024-11-14 05:26:56,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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)] Forceful destruction successful, exit code 0 [2024-11-14 05:26:56,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:26:56,786 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:26:56,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:56,786 INFO L85 PathProgramCache]: Analyzing trace with hash -531298836, now seen corresponding path program 1 times [2024-11-14 05:26:56,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:26:56,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916855624] [2024-11-14 05:26:56,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:56,787 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 [2024-11-14 05:26:56,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:26:56,790 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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) [2024-11-14 05:26:56,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:27:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:04,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 2648 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 05:27:04,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:27:05,277 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-14 05:27:05,277 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:27:05,277 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:27:05,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916855624] [2024-11-14 05:27:05,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916855624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:27:05,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:27:05,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:27:05,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020731992] [2024-11-14 05:27:05,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:27:05,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:27:05,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:27:05,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:27:05,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:27:05,279 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) [2024-11-14 05:27:06,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:06,154 INFO L93 Difference]: Finished difference Result 369 states and 514 transitions. [2024-11-14 05:27:06,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:27:06,156 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 [2024-11-14 05:27:06,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:06,158 INFO L225 Difference]: With dead ends: 369 [2024-11-14 05:27:06,158 INFO L226 Difference]: Without dead ends: 190 [2024-11-14 05:27:06,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:27:06,160 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 200 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 [2024-11-14 05:27:06,160 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] [2024-11-14 05:27:06,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-14 05:27:06,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2024-11-14 05:27:06,177 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) [2024-11-14 05:27:06,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2024-11-14 05:27:06,179 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 255 transitions. Word has length 128 [2024-11-14 05:27:06,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:06,180 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 255 transitions. [2024-11-14 05:27:06,180 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) [2024-11-14 05:27:06,180 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 255 transitions. [2024-11-14 05:27:06,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-14 05:27:06,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:06,182 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] [2024-11-14 05:27:06,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:27:06,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:27:06,383 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:27:06,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:06,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1165177195, now seen corresponding path program 1 times [2024-11-14 05:27:06,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:27:06,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142273700] [2024-11-14 05:27:06,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:06,388 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 [2024-11-14 05:27:06,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:27:06,391 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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) [2024-11-14 05:27:06,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:27:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:14,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 2654 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:27:14,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:27:15,533 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-14 05:27:15,533 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:27:15,533 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:27:15,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142273700] [2024-11-14 05:27:15,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142273700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:27:15,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:27:15,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:27:15,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670228921] [2024-11-14 05:27:15,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:27:15,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:27:15,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:27:15,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:27:15,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:27:15,535 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) [2024-11-14 05:27:16,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:16,201 INFO L93 Difference]: Finished difference Result 195 states and 266 transitions. [2024-11-14 05:27:16,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:27:16,202 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 [2024-11-14 05:27:16,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:16,204 INFO L225 Difference]: With dead ends: 195 [2024-11-14 05:27:16,205 INFO L226 Difference]: Without dead ends: 181 [2024-11-14 05:27:16,205 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 [2024-11-14 05:27:16,206 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 197 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:16,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 754 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:27:16,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-14 05:27:16,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-14 05:27:16,223 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) [2024-11-14 05:27:16,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 250 transitions. [2024-11-14 05:27:16,226 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 250 transitions. Word has length 126 [2024-11-14 05:27:16,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:16,226 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 250 transitions. [2024-11-14 05:27:16,226 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) [2024-11-14 05:27:16,226 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 250 transitions. [2024-11-14 05:27:16,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-14 05:27:16,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:16,229 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] [2024-11-14 05:27:16,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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)] Forceful destruction successful, exit code 0 [2024-11-14 05:27:16,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:27:16,429 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:27:16,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:16,430 INFO L85 PathProgramCache]: Analyzing trace with hash 121039056, now seen corresponding path program 1 times [2024-11-14 05:27:16,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:27:16,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468067937] [2024-11-14 05:27:16,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:16,431 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 [2024-11-14 05:27:16,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:27:16,433 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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) [2024-11-14 05:27:16,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:27:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:23,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 2660 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:27:23,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:27:25,468 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-14 05:27:25,468 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:27:25,468 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:27:25,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468067937] [2024-11-14 05:27:25,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468067937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:27:25,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:27:25,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:27:25,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40717659] [2024-11-14 05:27:25,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:27:25,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:27:25,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:27:25,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:27:25,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:27:25,470 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) [2024-11-14 05:27:26,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:26,210 INFO L93 Difference]: Finished difference Result 186 states and 254 transitions. [2024-11-14 05:27:26,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:27:26,211 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 [2024-11-14 05:27:26,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:26,214 INFO L225 Difference]: With dead ends: 186 [2024-11-14 05:27:26,214 INFO L226 Difference]: Without dead ends: 181 [2024-11-14 05:27:26,214 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 [2024-11-14 05:27:26,215 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 321 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:26,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 741 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:27:26,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-14 05:27:26,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-14 05:27:26,233 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) [2024-11-14 05:27:26,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 249 transitions. [2024-11-14 05:27:26,235 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 249 transitions. Word has length 132 [2024-11-14 05:27:26,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:26,236 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 249 transitions. [2024-11-14 05:27:26,236 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) [2024-11-14 05:27:26,236 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 249 transitions. [2024-11-14 05:27:26,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-14 05:27:26,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:26,238 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] [2024-11-14 05:27:26,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:27:26,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:27:26,439 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:27:26,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:26,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1183454891, now seen corresponding path program 1 times [2024-11-14 05:27:26,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:27:26,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589661526] [2024-11-14 05:27:26,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:26,441 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 [2024-11-14 05:27:26,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:27:26,443 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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) [2024-11-14 05:27:26,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:27:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:34,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 2655 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:27:34,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:27:35,769 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 05:27:35,769 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:27:35,769 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:27:35,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589661526] [2024-11-14 05:27:35,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589661526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:27:35,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:27:35,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:27:35,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204806292] [2024-11-14 05:27:35,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:27:35,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:27:35,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:27:35,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:27:35,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:27:35,771 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) [2024-11-14 05:27:36,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:36,444 INFO L93 Difference]: Finished difference Result 192 states and 260 transitions. [2024-11-14 05:27:36,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:27:36,445 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 [2024-11-14 05:27:36,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:36,447 INFO L225 Difference]: With dead ends: 192 [2024-11-14 05:27:36,447 INFO L226 Difference]: Without dead ends: 178 [2024-11-14 05:27:36,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:27:36,448 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 317 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:36,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 735 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:27:36,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-14 05:27:36,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2024-11-14 05:27:36,467 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) [2024-11-14 05:27:36,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 244 transitions. [2024-11-14 05:27:36,470 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 244 transitions. Word has length 127 [2024-11-14 05:27:36,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:36,470 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 244 transitions. [2024-11-14 05:27:36,471 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) [2024-11-14 05:27:36,471 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 244 transitions. [2024-11-14 05:27:36,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-14 05:27:36,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:36,473 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] [2024-11-14 05:27:36,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:27:36,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:27:36,674 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:27:36,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:36,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1639661005, now seen corresponding path program 1 times [2024-11-14 05:27:36,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:27:36,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372137892] [2024-11-14 05:27:36,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:36,676 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 [2024-11-14 05:27:36,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:27:36,677 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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) [2024-11-14 05:27:36,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:27:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:44,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 2657 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:27:44,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:27:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-14 05:27:46,002 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:27:46,002 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:27:46,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372137892] [2024-11-14 05:27:46,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372137892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:27:46,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:27:46,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:27:46,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648196117] [2024-11-14 05:27:46,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:27:46,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:27:46,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:27:46,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:27:46,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:27:46,004 INFO L87 Difference]: Start difference. First operand 178 states and 244 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) [2024-11-14 05:27:46,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:46,679 INFO L93 Difference]: Finished difference Result 189 states and 255 transitions. [2024-11-14 05:27:46,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:27:46,680 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 129 [2024-11-14 05:27:46,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:46,682 INFO L225 Difference]: With dead ends: 189 [2024-11-14 05:27:46,682 INFO L226 Difference]: Without dead ends: 175 [2024-11-14 05:27:46,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:27:46,683 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 188 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:46,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 716 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:27:46,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-14 05:27:46,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-14 05:27:46,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 155 states have (on average 1.3741935483870968) internal successors, (213), 155 states have internal predecessors, (213), 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) [2024-11-14 05:27:46,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 239 transitions. [2024-11-14 05:27:46,708 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 239 transitions. Word has length 129 [2024-11-14 05:27:46,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:46,708 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 239 transitions. [2024-11-14 05:27:46,708 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) [2024-11-14 05:27:46,708 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 239 transitions. [2024-11-14 05:27:46,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-14 05:27:46,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:46,710 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, 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] [2024-11-14 05:27:46,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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)] Ended with exit code 0 [2024-11-14 05:27:46,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:27:46,911 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:27:46,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:46,911 INFO L85 PathProgramCache]: Analyzing trace with hash -237388145, now seen corresponding path program 1 times [2024-11-14 05:27:46,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:27:46,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613152208] [2024-11-14 05:27:46,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:46,913 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 [2024-11-14 05:27:46,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:27:46,915 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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) [2024-11-14 05:27:46,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 (13)] Waiting until timeout for monitored process [2024-11-14 05:27:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:55,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 2658 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:27:55,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:27:56,756 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-14 05:27:56,757 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:27:56,757 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:27:56,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613152208] [2024-11-14 05:27:56,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613152208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:27:56,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:27:56,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:27:56,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797489712] [2024-11-14 05:27:56,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:27:56,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:27:56,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:27:56,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:27:56,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:27:56,759 INFO L87 Difference]: Start difference. First operand 175 states and 239 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) [2024-11-14 05:27:57,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:57,570 INFO L93 Difference]: Finished difference Result 186 states and 250 transitions. [2024-11-14 05:27:57,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:27:57,572 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 130 [2024-11-14 05:27:57,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:57,574 INFO L225 Difference]: With dead ends: 186 [2024-11-14 05:27:57,574 INFO L226 Difference]: Without dead ends: 172 [2024-11-14 05:27:57,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:27:57,575 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 308 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:57,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 697 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:27:57,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-14 05:27:57,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-11-14 05:27:57,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 152 states have (on average 1.368421052631579) internal successors, (208), 152 states have internal predecessors, (208), 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) [2024-11-14 05:27:57,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 234 transitions. [2024-11-14 05:27:57,597 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 234 transitions. Word has length 130 [2024-11-14 05:27:57,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:57,597 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 234 transitions. [2024-11-14 05:27:57,597 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) [2024-11-14 05:27:57,598 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 234 transitions. [2024-11-14 05:27:57,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-14 05:27:57,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:57,600 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, 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] [2024-11-14 05:27:57,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 (13)] Ended with exit code 0 [2024-11-14 05:27:57,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:27:57,801 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:27:57,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:57,801 INFO L85 PathProgramCache]: Analyzing trace with hash -181900838, now seen corresponding path program 1 times [2024-11-14 05:27:57,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:27:57,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071530736] [2024-11-14 05:27:57,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:57,803 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 [2024-11-14 05:27:57,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:27:57,804 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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) [2024-11-14 05:27:57,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 (14)] Waiting until timeout for monitored process [2024-11-14 05:28:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:28:07,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 2659 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:28:07,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:28:08,551 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-14 05:28:08,551 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:28:08,551 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:28:08,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071530736] [2024-11-14 05:28:08,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071530736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:28:08,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:28:08,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:28:08,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48005036] [2024-11-14 05:28:08,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:28:08,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:28:08,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:28:08,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:28:08,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:28:08,553 INFO L87 Difference]: Start difference. First operand 172 states and 234 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) [2024-11-14 05:28:09,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:28:09,213 INFO L93 Difference]: Finished difference Result 183 states and 245 transitions. [2024-11-14 05:28:09,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:28:09,214 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 131 [2024-11-14 05:28:09,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:28:09,216 INFO L225 Difference]: With dead ends: 183 [2024-11-14 05:28:09,216 INFO L226 Difference]: Without dead ends: 166 [2024-11-14 05:28:09,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:28:09,218 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 177 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:28:09,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 673 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:28:09,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-14 05:28:09,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-11-14 05:28:09,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 146 states have (on average 1.356164383561644) internal successors, (198), 146 states have internal predecessors, (198), 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) [2024-11-14 05:28:09,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 224 transitions. [2024-11-14 05:28:09,238 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 224 transitions. Word has length 131 [2024-11-14 05:28:09,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:28:09,238 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 224 transitions. [2024-11-14 05:28:09,238 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) [2024-11-14 05:28:09,239 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 224 transitions. [2024-11-14 05:28:09,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-14 05:28:09,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:28:09,240 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, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:28:09,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 (14)] Ended with exit code 0 [2024-11-14 05:28:09,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 [2024-11-14 05:28:09,441 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:28:09,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:28:09,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1096745050, now seen corresponding path program 1 times [2024-11-14 05:28:09,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:28:09,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625658155] [2024-11-14 05:28:09,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:09,444 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 [2024-11-14 05:28:09,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:28:09,448 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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) [2024-11-14 05:28:09,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3e99f32-f519-4a42-abf2-afbc056c6248/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 (15)] Waiting until timeout for monitored process [2024-11-14 05:29:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:29:54,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 2657 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-14 05:29:54,573 INFO L278 TraceCheckSpWp]: Computing forward predicates...