./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/poly_8_8_8_8_thresh_1_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_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_8_8_8_8_thresh_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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_74a0ea51-b2d1-4faf-865b-c122444a8636/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 0f27348f13f603e91518950a3438785f62ebe3f36ad88d598a940642290e58d1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:30:31,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:30:31,341 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:30:31,351 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:30:31,355 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:30:31,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:30:31,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:30:31,406 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:30:31,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:30:31,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:30:31,408 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:30:31,409 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:30:31,409 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:30:31,409 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:30:31,409 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:30:31,410 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:30:31,410 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:30:31,410 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:30:31,411 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:30:31,411 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:30:31,411 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:30:31,411 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:30:31,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:30:31,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:30:31,412 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:30:31,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:30:31,413 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:30:31,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:30:31,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:30:31,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:30:31,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:30:31,414 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:30:31,414 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:30:31,415 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:30:31,415 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:30:31,415 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:30:31,415 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:30:31,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:30:31,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:30:31,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:30:31,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:30:31,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:30:31,417 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:30:31,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:30:31,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:30:31,418 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:30:31,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:30:31,418 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_74a0ea51-b2d1-4faf-865b-c122444a8636/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 -> 0f27348f13f603e91518950a3438785f62ebe3f36ad88d598a940642290e58d1 [2024-11-14 05:30:31,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:30:31,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:30:31,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:30:31,851 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:30:31,852 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:30:31,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/neural-networks/poly_8_8_8_8_thresh_1_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-14 05:30:34,209 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:30:34,757 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:30:34,758 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/sv-benchmarks/c/neural-networks/poly_8_8_8_8_thresh_1_safe.c-amalgamation.i [2024-11-14 05:30:34,794 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/data/6c723e535/c51f345ef0ee461288bd216914c8bc74/FLAG9772a2e0d [2024-11-14 05:30:34,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/data/6c723e535/c51f345ef0ee461288bd216914c8bc74 [2024-11-14 05:30:34,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:30:34,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:30:34,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:30:34,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:30:34,832 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:30:34,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:30:34" (1/1) ... [2024-11-14 05:30:34,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36705de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:34, skipping insertion in model container [2024-11-14 05:30:34,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:30:34" (1/1) ... [2024-11-14 05:30:34,939 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:30:36,656 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-14 05:30:36,669 INFO L158 Benchmark]: Toolchain (without parser) took 1846.06ms. Allocated memory is still 142.6MB. Free memory was 114.8MB in the beginning and 94.8MB in the end (delta: 20.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 05:30:36,673 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:30:36,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1842.86ms. Allocated memory is still 142.6MB. Free memory was 114.8MB in the beginning and 94.8MB in the end (delta: 20.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 05:30:36,675 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1842.86ms. Allocated memory is still 142.6MB. Free memory was 114.8MB in the beginning and 94.8MB in the end (delta: 20.0MB). 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_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_8_8_8_8_thresh_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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_74a0ea51-b2d1-4faf-865b-c122444a8636/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 0f27348f13f603e91518950a3438785f62ebe3f36ad88d598a940642290e58d1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:30:39,947 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:30:40,107 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:30:40,115 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:30:40,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:30:40,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:30:40,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:30:40,147 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:30:40,147 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:30:40,148 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:30:40,148 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:30:40,148 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:30:40,148 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:30:40,148 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:30:40,149 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:30:40,149 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:30:40,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:30:40,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:30:40,150 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:30:40,150 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:30:40,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:30:40,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:30:40,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:30:40,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:30:40,151 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:30:40,151 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:30:40,151 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:30:40,152 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:30:40,152 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:30:40,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:30:40,152 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:30:40,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:30:40,153 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:30:40,153 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:30:40,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:30:40,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:30:40,153 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:30:40,154 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:30:40,154 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:30:40,154 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:30:40,154 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:30:40,154 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:30:40,155 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:30:40,155 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_74a0ea51-b2d1-4faf-865b-c122444a8636/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 -> 0f27348f13f603e91518950a3438785f62ebe3f36ad88d598a940642290e58d1 [2024-11-14 05:30:40,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:30:40,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:30:40,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:30:40,551 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:30:40,551 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:30:40,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/neural-networks/poly_8_8_8_8_thresh_1_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-14 05:30:43,012 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:30:43,595 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:30:43,603 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/sv-benchmarks/c/neural-networks/poly_8_8_8_8_thresh_1_safe.c-amalgamation.i [2024-11-14 05:30:43,672 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/data/c9697be27/f721f1951de54a51b7e2c5fed8ef7765/FLAG6cf3e3a27 [2024-11-14 05:30:43,704 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/data/c9697be27/f721f1951de54a51b7e2c5fed8ef7765 [2024-11-14 05:30:43,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:30:43,711 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:30:43,714 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:30:43,714 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:30:43,721 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:30:43,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:30:43" (1/1) ... [2024-11-14 05:30:43,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5126c070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:43, skipping insertion in model container [2024-11-14 05:30:43,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:30:43" (1/1) ... [2024-11-14 05:30:43,828 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:30:45,700 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_74a0ea51-b2d1-4faf-865b-c122444a8636/sv-benchmarks/c/neural-networks/poly_8_8_8_8_thresh_1_safe.c-amalgamation.i[71475,71488] [2024-11-14 05:30:46,167 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 05:30:46,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:30:46,198 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:30:46,299 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_74a0ea51-b2d1-4faf-865b-c122444a8636/sv-benchmarks/c/neural-networks/poly_8_8_8_8_thresh_1_safe.c-amalgamation.i[71475,71488] [2024-11-14 05:30:46,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:30:46,871 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:30:46,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:46 WrapperNode [2024-11-14 05:30:46,873 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:30:46,874 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:30:46,874 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:30:46,874 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:30:46,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:46" (1/1) ... [2024-11-14 05:30:46,958 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:46" (1/1) ... [2024-11-14 05:30:47,151 INFO L138 Inliner]: procedures = 779, calls = 975, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1547 [2024-11-14 05:30:47,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:30:47,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:30:47,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:30:47,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:30:47,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:46" (1/1) ... [2024-11-14 05:30:47,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:46" (1/1) ... [2024-11-14 05:30:47,189 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:46" (1/1) ... [2024-11-14 05:30:47,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:46" (1/1) ... [2024-11-14 05:30:47,279 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:46" (1/1) ... [2024-11-14 05:30:47,290 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:46" (1/1) ... [2024-11-14 05:30:47,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:46" (1/1) ... [2024-11-14 05:30:47,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:46" (1/1) ... [2024-11-14 05:30:47,320 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:30:47,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:30:47,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:30:47,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:30:47,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:46" (1/1) ... [2024-11-14 05:30:47,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:30:47,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:47,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:30:47,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:30:47,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-14 05:30:47,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-14 05:30:47,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:30:47,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:30:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:30:47,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 05:30:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 05:30:47,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:30:47,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:30:47,417 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_idx2sub [2024-11-14 05:30:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_idx2sub [2024-11-14 05:30:47,417 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-14 05:30:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-14 05:30:47,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:30:47,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:30:47,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-14 05:30:47,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-14 05:30:47,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 05:30:47,417 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_dense [2024-11-14 05:30:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_dense [2024-11-14 05:30:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-14 05:30:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 05:30:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 05:30:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_sub2idx [2024-11-14 05:30:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_sub2idx [2024-11-14 05:30:47,896 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:30:47,898 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:31:10,282 INFO L? ?]: Removed 247 outVars from TransFormulas that were not future-live. [2024-11-14 05:31:10,282 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:31:10,307 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:31:10,308 INFO L316 CfgBuilder]: Removed 44 assume(true) statements. [2024-11-14 05:31:10,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:31:10 BoogieIcfgContainer [2024-11-14 05:31:10,308 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:31:10,311 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:31:10,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:31:10,318 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:31:10,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:30:43" (1/3) ... [2024-11-14 05:31:10,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5fef43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:31:10, skipping insertion in model container [2024-11-14 05:31:10,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:46" (2/3) ... [2024-11-14 05:31:10,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5fef43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:31:10, skipping insertion in model container [2024-11-14 05:31:10,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:31:10" (3/3) ... [2024-11-14 05:31:10,321 INFO L112 eAbstractionObserver]: Analyzing ICFG poly_8_8_8_8_thresh_1_safe.c-amalgamation.i [2024-11-14 05:31:10,342 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:31:10,343 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG poly_8_8_8_8_thresh_1_safe.c-amalgamation.i that has 6 procedures, 183 locations, 1 initial locations, 45 loop locations, and 1 error locations. [2024-11-14 05:31:10,434 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:31:10,454 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;@2e79be61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:31:10,456 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:31:10,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 163 states have (on average 1.6809815950920246) internal successors, (274), 164 states have internal predecessors, (274), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:31:10,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-14 05:31:10,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:10,501 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:31:10,501 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:31:10,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:10,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1657992496, now seen corresponding path program 1 times [2024-11-14 05:31:10,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:31:10,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468646794] [2024-11-14 05:31:10,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:10,541 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 05:31:10,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:31:10,544 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:31:10,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:31:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:25,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 3650 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:31:25,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-14 05:31:26,041 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:31:26,042 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:31:26,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468646794] [2024-11-14 05:31:26,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468646794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:31:26,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:31:26,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:31:26,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614320496] [2024-11-14 05:31:26,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:31:26,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:31:26,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:31:26,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:31:26,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:31:26,075 INFO L87 Difference]: Start difference. First operand has 183 states, 163 states have (on average 1.6809815950920246) internal successors, (274), 164 states have internal predecessors, (274), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:31:26,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:31:26,124 INFO L93 Difference]: Finished difference Result 363 states and 607 transitions. [2024-11-14 05:31:26,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:31:26,127 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 133 [2024-11-14 05:31:26,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:31:26,138 INFO L225 Difference]: With dead ends: 363 [2024-11-14 05:31:26,138 INFO L226 Difference]: Without dead ends: 179 [2024-11-14 05:31:26,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 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 05:31:26,150 INFO L432 NwaCegarLoop]: 254 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, 254 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 05:31:26,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:31:26,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-14 05:31:26,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-14 05:31:26,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 160 states have (on average 1.4) internal successors, (224), 160 states have internal predecessors, (224), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:31:26,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 250 transitions. [2024-11-14 05:31:26,213 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 250 transitions. Word has length 133 [2024-11-14 05:31:26,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:31:26,214 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 250 transitions. [2024-11-14 05:31:26,215 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, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:31:26,215 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 250 transitions. [2024-11-14 05:31:26,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-14 05:31:26,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:26,221 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:31:26,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:31:26,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:31:26,423 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:31:26,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:26,423 INFO L85 PathProgramCache]: Analyzing trace with hash -871996458, now seen corresponding path program 1 times [2024-11-14 05:31:26,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:31:26,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625190267] [2024-11-14 05:31:26,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:26,434 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 05:31:26,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:31:26,437 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:31:26,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:31:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:31:43,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 3651 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:31:43,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:31:44,594 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-14 05:31:44,595 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:31:44,595 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:31:44,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625190267] [2024-11-14 05:31:44,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625190267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:31:44,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:31:44,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:31:44,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574240943] [2024-11-14 05:31:44,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:31:44,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:31:44,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:31:44,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:31:44,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:31:44,605 INFO L87 Difference]: Start difference. First operand 179 states and 250 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:31:45,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:31:45,787 INFO L93 Difference]: Finished difference Result 359 states and 505 transitions. [2024-11-14 05:31:45,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:31:45,789 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 133 [2024-11-14 05:31:45,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:31:45,795 INFO L225 Difference]: With dead ends: 359 [2024-11-14 05:31:45,795 INFO L226 Difference]: Without dead ends: 185 [2024-11-14 05:31:45,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 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 05:31:45,801 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 213 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:31:45,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 749 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 05:31:45,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-14 05:31:45,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-11-14 05:31:45,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 164 states have (on average 1.3902439024390243) internal successors, (228), 164 states have internal predecessors, (228), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-14 05:31:45,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 257 transitions. [2024-11-14 05:31:45,841 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 257 transitions. Word has length 133 [2024-11-14 05:31:45,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:31:45,843 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 257 transitions. [2024-11-14 05:31:45,844 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:31:45,846 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 257 transitions. [2024-11-14 05:31:45,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-14 05:31:45,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:31:45,856 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:31:45,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 05:31:46,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:31:46,057 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:31:46,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:31:46,060 INFO L85 PathProgramCache]: Analyzing trace with hash -356521725, now seen corresponding path program 1 times [2024-11-14 05:31:46,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:31:46,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349623390] [2024-11-14 05:31:46,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:31:46,069 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 05:31:46,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:31:46,072 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:31:46,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:03,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 3656 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:32:03,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:04,614 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-14 05:32:04,614 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:32:04,614 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:32:04,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349623390] [2024-11-14 05:32:04,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349623390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:32:04,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:32:04,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:32:04,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046227867] [2024-11-14 05:32:04,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:32:04,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:32:04,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:32:04,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:32:04,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:32:04,617 INFO L87 Difference]: Start difference. First operand 185 states and 257 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:32:05,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:05,792 INFO L93 Difference]: Finished difference Result 371 states and 519 transitions. [2024-11-14 05:32:05,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:32:05,794 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 138 [2024-11-14 05:32:05,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:05,798 INFO L225 Difference]: With dead ends: 371 [2024-11-14 05:32:05,798 INFO L226 Difference]: Without dead ends: 191 [2024-11-14 05:32:05,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 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 05:32:05,801 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 335 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:05,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 758 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 05:32:05,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-14 05:32:05,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2024-11-14 05:32:05,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 164 states have (on average 1.3902439024390243) internal successors, (228), 164 states have internal predecessors, (228), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-14 05:32:05,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 257 transitions. [2024-11-14 05:32:05,843 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 257 transitions. Word has length 138 [2024-11-14 05:32:05,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:05,844 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 257 transitions. [2024-11-14 05:32:05,844 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:32:05,845 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 257 transitions. [2024-11-14 05:32:05,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-14 05:32:05,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:05,851 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:05,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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)] Forceful destruction successful, exit code 0 [2024-11-14 05:32:06,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:06,053 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:32:06,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:06,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1142256474, now seen corresponding path program 1 times [2024-11-14 05:32:06,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:32:06,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114692375] [2024-11-14 05:32:06,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:06,057 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 05:32:06,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:32:06,061 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:06,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:22,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 3663 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:32:22,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:22,896 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-14 05:32:22,896 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:32:22,896 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:32:22,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114692375] [2024-11-14 05:32:22,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114692375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:32:22,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:32:22,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:32:22,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826356130] [2024-11-14 05:32:22,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:32:22,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:32:22,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:32:22,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:32:22,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:32:22,899 INFO L87 Difference]: Start difference. First operand 185 states and 257 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:32:23,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:23,846 INFO L93 Difference]: Finished difference Result 371 states and 519 transitions. [2024-11-14 05:32:23,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:32:23,847 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 145 [2024-11-14 05:32:23,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:23,849 INFO L225 Difference]: With dead ends: 371 [2024-11-14 05:32:23,849 INFO L226 Difference]: Without dead ends: 191 [2024-11-14 05:32:23,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 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 05:32:23,852 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 334 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:23,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 758 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 05:32:23,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-14 05:32:23,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2024-11-14 05:32:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 164 states have (on average 1.3902439024390243) internal successors, (228), 164 states have internal predecessors, (228), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-14 05:32:23,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 257 transitions. [2024-11-14 05:32:23,881 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 257 transitions. Word has length 145 [2024-11-14 05:32:23,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:23,881 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 257 transitions. [2024-11-14 05:32:23,881 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:32:23,881 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 257 transitions. [2024-11-14 05:32:23,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-14 05:32:23,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:23,887 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:23,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:24,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:24,088 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:32:24,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:24,088 INFO L85 PathProgramCache]: Analyzing trace with hash -434087082, now seen corresponding path program 1 times [2024-11-14 05:32:24,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:32:24,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973866785] [2024-11-14 05:32:24,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:24,091 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 05:32:24,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:32:24,092 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:24,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:38,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 3667 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:32:38,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-14 05:32:38,937 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:32:38,938 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:32:38,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973866785] [2024-11-14 05:32:38,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973866785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:32:38,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:32:38,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:32:38,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478448308] [2024-11-14 05:32:38,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:32:38,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:32:38,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:32:38,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:32:38,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:32:38,940 INFO L87 Difference]: Start difference. First operand 185 states and 257 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:32:40,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:40,067 INFO L93 Difference]: Finished difference Result 371 states and 519 transitions. [2024-11-14 05:32:40,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:32:40,068 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 149 [2024-11-14 05:32:40,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:40,070 INFO L225 Difference]: With dead ends: 371 [2024-11-14 05:32:40,070 INFO L226 Difference]: Without dead ends: 191 [2024-11-14 05:32:40,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 144 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 05:32:40,073 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 333 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:40,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 758 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 05:32:40,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-14 05:32:40,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2024-11-14 05:32:40,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 164 states have (on average 1.3902439024390243) internal successors, (228), 164 states have internal predecessors, (228), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-14 05:32:40,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 257 transitions. [2024-11-14 05:32:40,092 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 257 transitions. Word has length 149 [2024-11-14 05:32:40,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:40,093 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 257 transitions. [2024-11-14 05:32:40,093 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:32:40,093 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 257 transitions. [2024-11-14 05:32:40,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-14 05:32:40,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:40,098 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:40,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:40,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:40,299 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:32:40,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:40,300 INFO L85 PathProgramCache]: Analyzing trace with hash -511995474, now seen corresponding path program 1 times [2024-11-14 05:32:40,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:32:40,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43449144] [2024-11-14 05:32:40,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:40,304 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 05:32:40,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:32:40,306 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:40,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:54,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 3676 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:32:54,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:54,958 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-14 05:32:54,959 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:32:54,959 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:32:54,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43449144] [2024-11-14 05:32:54,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43449144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:32:54,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:32:54,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:32:54,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275640522] [2024-11-14 05:32:54,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:32:54,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:32:54,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:32:54,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:32:54,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:32:54,962 INFO L87 Difference]: Start difference. First operand 185 states and 257 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:32:55,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:55,885 INFO L93 Difference]: Finished difference Result 371 states and 519 transitions. [2024-11-14 05:32:55,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:32:55,886 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 158 [2024-11-14 05:32:55,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:55,889 INFO L225 Difference]: With dead ends: 371 [2024-11-14 05:32:55,889 INFO L226 Difference]: Without dead ends: 191 [2024-11-14 05:32:55,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 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 05:32:55,890 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 337 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:55,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 753 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:32:55,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-14 05:32:55,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2024-11-14 05:32:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 164 states have (on average 1.3902439024390243) internal successors, (228), 164 states have internal predecessors, (228), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-14 05:32:55,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 257 transitions. [2024-11-14 05:32:55,911 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 257 transitions. Word has length 158 [2024-11-14 05:32:55,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:55,911 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 257 transitions. [2024-11-14 05:32:55,911 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, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:32:55,912 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 257 transitions. [2024-11-14 05:32:55,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-14 05:32:55,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:55,915 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2024-11-14 05:32:56,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:56,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:56,116 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:32:56,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:56,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1394329334, now seen corresponding path program 1 times [2024-11-14 05:32:56,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:32:56,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961006879] [2024-11-14 05:32:56,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:56,120 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 05:32:56,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:32:56,123 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:32:56,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:33:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:10,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 3663 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 05:33:10,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:33:11,632 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-14 05:33:11,632 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:33:11,633 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:33:11,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961006879] [2024-11-14 05:33:11,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961006879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:33:11,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:33:11,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:33:11,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949081074] [2024-11-14 05:33:11,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:33:11,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:33:11,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:33:11,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:33:11,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:33:11,635 INFO L87 Difference]: Start difference. First operand 185 states and 257 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:33:12,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:12,682 INFO L93 Difference]: Finished difference Result 371 states and 519 transitions. [2024-11-14 05:33:12,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:33:12,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 153 [2024-11-14 05:33:12,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:12,686 INFO L225 Difference]: With dead ends: 371 [2024-11-14 05:33:12,686 INFO L226 Difference]: Without dead ends: 191 [2024-11-14 05:33:12,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:33:12,688 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 201 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:12,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 703 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 05:33:12,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-14 05:33:12,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2024-11-14 05:33:12,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 164 states have (on average 1.3902439024390243) internal successors, (228), 164 states have internal predecessors, (228), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-14 05:33:12,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 257 transitions. [2024-11-14 05:33:12,711 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 257 transitions. Word has length 153 [2024-11-14 05:33:12,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:12,711 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 257 transitions. [2024-11-14 05:33:12,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:33:12,712 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 257 transitions. [2024-11-14 05:33:12,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-14 05:33:12,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:12,715 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:12,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:33:12,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:33:12,916 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:33:12,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:12,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1767689066, now seen corresponding path program 1 times [2024-11-14 05:33:12,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:33:12,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117616303] [2024-11-14 05:33:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:12,918 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 05:33:12,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:33:12,923 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:33:12,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:33:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:27,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 3675 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:33:27,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:33:29,790 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-14 05:33:29,790 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:33:29,791 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:33:29,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117616303] [2024-11-14 05:33:29,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117616303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:33:29,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:33:29,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:33:29,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060217138] [2024-11-14 05:33:29,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:33:29,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:33:29,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:33:29,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:33:29,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:33:29,792 INFO L87 Difference]: Start difference. First operand 185 states and 257 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:33:30,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:30,623 INFO L93 Difference]: Finished difference Result 196 states and 268 transitions. [2024-11-14 05:33:30,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:33:30,625 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 157 [2024-11-14 05:33:30,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:30,627 INFO L225 Difference]: With dead ends: 196 [2024-11-14 05:33:30,627 INFO L226 Difference]: Without dead ends: 182 [2024-11-14 05:33:30,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 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 05:33:30,628 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 323 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:30,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 755 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:33:30,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-14 05:33:30,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-14 05:33:30,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 161 states have (on average 1.3850931677018634) internal successors, (223), 161 states have internal predecessors, (223), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-14 05:33:30,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 252 transitions. [2024-11-14 05:33:30,652 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 252 transitions. Word has length 157 [2024-11-14 05:33:30,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:30,652 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 252 transitions. [2024-11-14 05:33:30,653 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:33:30,653 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 252 transitions. [2024-11-14 05:33:30,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-14 05:33:30,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:30,656 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:30,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-14 05:33:30,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:33:30,857 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:33:30,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:30,857 INFO L85 PathProgramCache]: Analyzing trace with hash -2097228815, now seen corresponding path program 1 times [2024-11-14 05:33:30,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:33:30,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436489725] [2024-11-14 05:33:30,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:30,859 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 05:33:30,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:33:30,861 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:33:30,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:33:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:46,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 3681 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:33:46,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:33:47,912 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-14 05:33:47,913 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:33:47,913 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:33:47,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436489725] [2024-11-14 05:33:47,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436489725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:33:47,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:33:47,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:33:47,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090754134] [2024-11-14 05:33:47,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:33:47,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:33:47,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:33:47,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:33:47,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:33:47,916 INFO L87 Difference]: Start difference. First operand 182 states and 252 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:33:48,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:48,706 INFO L93 Difference]: Finished difference Result 187 states and 256 transitions. [2024-11-14 05:33:48,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:33:48,707 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 163 [2024-11-14 05:33:48,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:48,709 INFO L225 Difference]: With dead ends: 187 [2024-11-14 05:33:48,709 INFO L226 Difference]: Without dead ends: 182 [2024-11-14 05:33:48,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 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 05:33:48,713 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 321 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:48,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 742 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:33:48,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-14 05:33:48,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-14 05:33:48,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 161 states have (on average 1.3850931677018634) internal successors, (223), 161 states have internal predecessors, (223), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (15), 15 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-14 05:33:48,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 251 transitions. [2024-11-14 05:33:48,731 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 251 transitions. Word has length 163 [2024-11-14 05:33:48,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:48,731 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 251 transitions. [2024-11-14 05:33:48,732 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:33:48,732 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 251 transitions. [2024-11-14 05:33:48,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-14 05:33:48,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:48,735 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:48,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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)] Forceful destruction successful, exit code 0 [2024-11-14 05:33:48,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:33:48,935 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:33:48,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:48,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1344225999, now seen corresponding path program 1 times [2024-11-14 05:33:48,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:33:48,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542121272] [2024-11-14 05:33:48,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:48,938 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 05:33:48,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:33:48,941 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:33:48,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:34:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:04,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 3676 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:34:04,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:06,205 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-14 05:34:06,205 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:34:06,205 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:34:06,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542121272] [2024-11-14 05:34:06,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542121272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:06,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:34:06,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:34:06,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939197877] [2024-11-14 05:34:06,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:06,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:34:06,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:34:06,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:34:06,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:34:06,208 INFO L87 Difference]: Start difference. First operand 182 states and 251 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:34:07,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:07,133 INFO L93 Difference]: Finished difference Result 193 states and 262 transitions. [2024-11-14 05:34:07,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:34:07,134 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 158 [2024-11-14 05:34:07,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:07,136 INFO L225 Difference]: With dead ends: 193 [2024-11-14 05:34:07,136 INFO L226 Difference]: Without dead ends: 179 [2024-11-14 05:34:07,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 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 05:34:07,138 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 318 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:07,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 736 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:34:07,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-14 05:34:07,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-14 05:34:07,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 158 states have (on average 1.379746835443038) internal successors, (218), 158 states have internal predecessors, (218), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (15), 15 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-14 05:34:07,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 246 transitions. [2024-11-14 05:34:07,159 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 246 transitions. Word has length 158 [2024-11-14 05:34:07,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:07,160 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 246 transitions. [2024-11-14 05:34:07,160 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:34:07,160 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 246 transitions. [2024-11-14 05:34:07,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-14 05:34:07,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:07,164 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:07,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:34:07,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:34:07,364 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:34:07,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:07,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1232064111, now seen corresponding path program 1 times [2024-11-14 05:34:07,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:34:07,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224648659] [2024-11-14 05:34:07,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:07,369 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 05:34:07,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:34:07,373 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:34:07,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:34:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:22,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 3678 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:34:22,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:23,943 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-14 05:34:23,943 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:34:23,943 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:34:23,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224648659] [2024-11-14 05:34:23,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224648659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:23,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:34:23,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:34:23,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019876364] [2024-11-14 05:34:23,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:23,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:34:23,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:34:23,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:34:23,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:34:23,945 INFO L87 Difference]: Start difference. First operand 179 states and 246 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:34:24,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:24,695 INFO L93 Difference]: Finished difference Result 190 states and 257 transitions. [2024-11-14 05:34:24,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:34:24,696 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 160 [2024-11-14 05:34:24,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:24,698 INFO L225 Difference]: With dead ends: 190 [2024-11-14 05:34:24,698 INFO L226 Difference]: Without dead ends: 176 [2024-11-14 05:34:24,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 155 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 05:34:24,699 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 311 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:24,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 717 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:34:24,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-14 05:34:24,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-14 05:34:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 155 states have (on average 1.3741935483870968) internal successors, (213), 155 states have internal predecessors, (213), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (15), 15 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-14 05:34:24,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 241 transitions. [2024-11-14 05:34:24,714 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 241 transitions. Word has length 160 [2024-11-14 05:34:24,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:24,714 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 241 transitions. [2024-11-14 05:34:24,715 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:34:24,715 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 241 transitions. [2024-11-14 05:34:24,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-14 05:34:24,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:24,718 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:24,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:34:24,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:34:24,918 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:34:24,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:24,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1702750896, now seen corresponding path program 1 times [2024-11-14 05:34:24,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:34:24,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469586224] [2024-11-14 05:34:24,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:24,921 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 05:34:24,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:34:24,923 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:34:24,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:34:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:40,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 3679 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:34:40,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:42,196 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-14 05:34:42,196 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:34:42,196 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:34:42,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469586224] [2024-11-14 05:34:42,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469586224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:42,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:34:42,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:34:42,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886566766] [2024-11-14 05:34:42,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:42,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:34:42,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:34:42,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:34:42,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:34:42,198 INFO L87 Difference]: Start difference. First operand 176 states and 241 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:34:43,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:34:43,048 INFO L93 Difference]: Finished difference Result 187 states and 252 transitions. [2024-11-14 05:34:43,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:34:43,049 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 161 [2024-11-14 05:34:43,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:34:43,051 INFO L225 Difference]: With dead ends: 187 [2024-11-14 05:34:43,051 INFO L226 Difference]: Without dead ends: 173 [2024-11-14 05:34:43,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 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 05:34:43,052 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 306 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:34:43,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 698 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:34:43,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-14 05:34:43,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-14 05:34:43,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 152 states have (on average 1.368421052631579) internal successors, (208), 152 states have internal predecessors, (208), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (15), 15 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-14 05:34:43,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 236 transitions. [2024-11-14 05:34:43,070 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 236 transitions. Word has length 161 [2024-11-14 05:34:43,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:34:43,071 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 236 transitions. [2024-11-14 05:34:43,071 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:34:43,072 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 236 transitions. [2024-11-14 05:34:43,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-14 05:34:43,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:34:43,074 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:34:43,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:34:43,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:34:43,275 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:34:43,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:34:43,275 INFO L85 PathProgramCache]: Analyzing trace with hash -999703234, now seen corresponding path program 1 times [2024-11-14 05:34:43,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:34:43,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743132388] [2024-11-14 05:34:43,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:34:43,279 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 05:34:43,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:34:43,281 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:34:43,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:34:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:34:58,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 3680 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:34:58,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:59,981 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-14 05:34:59,981 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:34:59,982 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:34:59,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743132388] [2024-11-14 05:34:59,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743132388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:59,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:34:59,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:34:59,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949878279] [2024-11-14 05:34:59,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:59,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:34:59,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:34:59,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:34:59,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:34:59,983 INFO L87 Difference]: Start difference. First operand 173 states and 236 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:35:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:35:00,868 INFO L93 Difference]: Finished difference Result 184 states and 247 transitions. [2024-11-14 05:35:00,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:35:00,869 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 162 [2024-11-14 05:35:00,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:35:00,870 INFO L225 Difference]: With dead ends: 184 [2024-11-14 05:35:00,870 INFO L226 Difference]: Without dead ends: 167 [2024-11-14 05:35:00,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 157 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 05:35:00,871 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 302 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:35:00,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 674 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:35:00,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-14 05:35:00,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-14 05:35:00,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 146 states have (on average 1.356164383561644) internal successors, (198), 146 states have internal predecessors, (198), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (15), 15 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-14 05:35:00,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 226 transitions. [2024-11-14 05:35:00,888 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 226 transitions. Word has length 162 [2024-11-14 05:35:00,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:35:00,889 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 226 transitions. [2024-11-14 05:35:00,889 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, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:35:00,889 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 226 transitions. [2024-11-14 05:35:00,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-14 05:35:00,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:35:00,891 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:35:00,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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)] Forceful destruction successful, exit code 0 [2024-11-14 05:35:01,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:35:01,092 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:35:01,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:35:01,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1914547446, now seen corresponding path program 1 times [2024-11-14 05:35:01,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:35:01,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187308902] [2024-11-14 05:35:01,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:01,097 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 05:35:01,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:35:01,099 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:35:01,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74a0ea51-b2d1-4faf-865b-c122444a8636/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 05:37:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:37:51,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 3678 conjuncts, 101 conjuncts are in the unsatisfiable core [2024-11-14 05:37:51,746 INFO L278 TraceCheckSpWp]: Computing forward predicates...