./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/poly_4_4_4_4_thresh_4_unsafe.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_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/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_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_4_4_4_4_thresh_4_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/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_fac23d61-ab6b-4338-9e9a-d069d30ba680/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 b6079d790658e1a78abce6fa1f3b917a6451d81b865c3317f26cfb8897cd3d37 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:43:53,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:43:53,338 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:43:53,344 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:43:53,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:43:53,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:43:53,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:43:53,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:43:53,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:43:53,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:43:53,368 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:43:53,368 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:43:53,369 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:43:53,369 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:43:53,369 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:43:53,369 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:43:53,369 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:43:53,369 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:43:53,369 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:43:53,370 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:43:53,370 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:43:53,370 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:43:53,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:43:53,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:43:53,371 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:43:53,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:43:53,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:43:53,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:43:53,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:43:53,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:43:53,371 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:43:53,372 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:43:53,372 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:43:53,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:43:53,372 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:43:53,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:43:53,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:43:53,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:43:53,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:43:53,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:43:53,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:43:53,373 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:43:53,373 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:43:53,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:43:53,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:43:53,374 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:43:53,374 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:43:53,374 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_fac23d61-ab6b-4338-9e9a-d069d30ba680/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 -> b6079d790658e1a78abce6fa1f3b917a6451d81b865c3317f26cfb8897cd3d37 [2024-11-13 23:43:53,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:43:53,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:43:53,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:43:53,685 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:43:53,685 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:43:53,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/neural-networks/poly_4_4_4_4_thresh_4_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-13 23:43:55,619 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:43:56,159 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:43:56,162 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/sv-benchmarks/c/neural-networks/poly_4_4_4_4_thresh_4_unsafe.c-amalgamation.i [2024-11-13 23:43:56,203 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/data/68910421f/d8a7eb2342774f0387290334aaa20d8d/FLAGe06908979 [2024-11-13 23:43:56,221 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/data/68910421f/d8a7eb2342774f0387290334aaa20d8d [2024-11-13 23:43:56,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:43:56,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:43:56,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:43:56,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:43:56,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:43:56,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:43:56" (1/1) ... [2024-11-13 23:43:56,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669b25f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:56, skipping insertion in model container [2024-11-13 23:43:56,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:43:56" (1/1) ... [2024-11-13 23:43:56,315 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:43:57,297 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3128) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1503) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:253) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:3192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:3036) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:144) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1237) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:215) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1638) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3515) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2508) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:642) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-13 23:43:57,303 INFO L158 Benchmark]: Toolchain (without parser) took 1077.70ms. Allocated memory is still 117.4MB. Free memory was 88.0MB in the beginning and 68.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:43:57,304 INFO L158 Benchmark]: CDTParser took 1.16ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:43:57,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1075.16ms. Allocated memory is still 117.4MB. Free memory was 88.0MB in the beginning and 68.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:43:57,306 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.16ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1075.16ms. Allocated memory is still 117.4MB. Free memory was 88.0MB in the beginning and 68.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/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_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_4_4_4_4_thresh_4_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/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_fac23d61-ab6b-4338-9e9a-d069d30ba680/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 b6079d790658e1a78abce6fa1f3b917a6451d81b865c3317f26cfb8897cd3d37 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:43:59,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:43:59,888 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-13 23:43:59,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:43:59,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:43:59,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:43:59,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:43:59,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:43:59,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:43:59,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:43:59,938 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:43:59,938 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:43:59,939 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:43:59,939 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:43:59,939 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:43:59,939 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:43:59,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:43:59,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:43:59,940 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:43:59,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:43:59,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:43:59,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:43:59,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:43:59,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:43:59,941 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:43:59,941 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:43:59,941 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:43:59,941 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:43:59,941 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:43:59,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:43:59,941 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:43:59,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:43:59,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 23:43:59,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:43:59,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:43:59,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:43:59,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:43:59,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:43:59,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:43:59,942 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:43:59,942 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:43:59,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:43:59,942 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:43:59,942 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_fac23d61-ab6b-4338-9e9a-d069d30ba680/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 -> b6079d790658e1a78abce6fa1f3b917a6451d81b865c3317f26cfb8897cd3d37 [2024-11-13 23:44:00,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:44:00,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:44:00,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:44:00,272 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:44:00,272 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:44:00,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/neural-networks/poly_4_4_4_4_thresh_4_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-13 23:44:02,268 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:44:02,765 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:44:02,766 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/sv-benchmarks/c/neural-networks/poly_4_4_4_4_thresh_4_unsafe.c-amalgamation.i [2024-11-13 23:44:02,808 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/data/d403e1ea9/62496bda400f48169838bcba1af24422/FLAGf64ff54b4 [2024-11-13 23:44:02,831 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/data/d403e1ea9/62496bda400f48169838bcba1af24422 [2024-11-13 23:44:02,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:44:02,836 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:44:02,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:44:02,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:44:02,842 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:44:02,843 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:44:02" (1/1) ... [2024-11-13 23:44:02,846 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ae56d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:02, skipping insertion in model container [2024-11-13 23:44:02,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:44:02" (1/1) ... [2024-11-13 23:44:02,924 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:44:04,254 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_fac23d61-ab6b-4338-9e9a-d069d30ba680/sv-benchmarks/c/neural-networks/poly_4_4_4_4_thresh_4_unsafe.c-amalgamation.i[71475,71488] [2024-11-13 23:44:04,710 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:44:04,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:44:04,738 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:44:04,831 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_fac23d61-ab6b-4338-9e9a-d069d30ba680/sv-benchmarks/c/neural-networks/poly_4_4_4_4_thresh_4_unsafe.c-amalgamation.i[71475,71488] [2024-11-13 23:44:04,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:44:05,214 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:44:05,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:05 WrapperNode [2024-11-13 23:44:05,215 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:44:05,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:44:05,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:44:05,216 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:44:05,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:05" (1/1) ... [2024-11-13 23:44:05,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:05" (1/1) ... [2024-11-13 23:44:05,376 INFO L138 Inliner]: procedures = 779, calls = 623, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1195 [2024-11-13 23:44:05,377 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:44:05,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:44:05,378 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:44:05,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:44:05,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:05" (1/1) ... [2024-11-13 23:44:05,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:05" (1/1) ... [2024-11-13 23:44:05,395 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:05" (1/1) ... [2024-11-13 23:44:05,396 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:05" (1/1) ... [2024-11-13 23:44:05,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:05" (1/1) ... [2024-11-13 23:44:05,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:05" (1/1) ... [2024-11-13 23:44:05,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:05" (1/1) ... [2024-11-13 23:44:05,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:05" (1/1) ... [2024-11-13 23:44:05,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:44:05,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:44:05,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:44:05,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:44:05,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:05" (1/1) ... [2024-11-13 23:44:05,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:44:05,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:05,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:44:05,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:44:05,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-13 23:44:05,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-13 23:44:05,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:44:05,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:44:05,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:44:05,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-13 23:44:05,563 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-13 23:44:05,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 23:44:05,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 23:44:05,563 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_idx2sub [2024-11-13 23:44:05,563 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_idx2sub [2024-11-13 23:44:05,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-13 23:44:05,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-13 23:44:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 23:44:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:44:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-13 23:44:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-13 23:44:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-13 23:44:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_dense [2024-11-13 23:44:05,564 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_dense [2024-11-13 23:44:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-13 23:44:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-13 23:44:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 23:44:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_sub2idx [2024-11-13 23:44:05,564 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_sub2idx [2024-11-13 23:44:05,895 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:44:05,897 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:44:23,029 INFO L? ?]: Removed 247 outVars from TransFormulas that were not future-live. [2024-11-13 23:44:23,030 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:44:23,042 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:44:23,042 INFO L316 CfgBuilder]: Removed 44 assume(true) statements. [2024-11-13 23:44:23,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:23 BoogieIcfgContainer [2024-11-13 23:44:23,043 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:44:23,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:44:23,046 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:44:23,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:44:23,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:44:02" (1/3) ... [2024-11-13 23:44:23,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff68c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:44:23, skipping insertion in model container [2024-11-13 23:44:23,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:05" (2/3) ... [2024-11-13 23:44:23,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff68c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:44:23, skipping insertion in model container [2024-11-13 23:44:23,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:23" (3/3) ... [2024-11-13 23:44:23,052 INFO L112 eAbstractionObserver]: Analyzing ICFG poly_4_4_4_4_thresh_4_unsafe.c-amalgamation.i [2024-11-13 23:44:23,067 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:44:23,069 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG poly_4_4_4_4_thresh_4_unsafe.c-amalgamation.i that has 6 procedures, 183 locations, 1 initial locations, 45 loop locations, and 1 error locations. [2024-11-13 23:44:23,139 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:44:23,154 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;@67913bbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:44:23,154 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:44:23,159 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) [2024-11-13 23:44:23,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 23:44:23,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:23,180 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] [2024-11-13 23:44:23,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:23,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:23,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1657992496, now seen corresponding path program 1 times [2024-11-13 23:44:23,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:44:23,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787484937] [2024-11-13 23:44:23,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:23,207 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:23,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:44:23,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:44:23,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 23:44:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:26,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 1794 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 23:44:26,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:26,686 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-13 23:44:26,686 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:44:26,687 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:44:26,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787484937] [2024-11-13 23:44:26,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787484937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:26,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:26,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:44:26,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631706870] [2024-11-13 23:44:26,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:26,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:44:26,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:44:26,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:44:26,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:44:26,720 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 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-13 23:44:26,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:26,784 INFO L93 Difference]: Finished difference Result 363 states and 607 transitions. [2024-11-13 23:44:26,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:44:26,787 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 133 [2024-11-13 23:44:26,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:26,802 INFO L225 Difference]: With dead ends: 363 [2024-11-13 23:44:26,802 INFO L226 Difference]: Without dead ends: 179 [2024-11-13 23:44:26,813 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 [2024-11-13 23:44:26,818 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 [2024-11-13 23:44:26,819 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] [2024-11-13 23:44:26,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-13 23:44:26,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-13 23:44:26,879 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) [2024-11-13 23:44:26,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 250 transitions. [2024-11-13 23:44:26,894 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 250 transitions. Word has length 133 [2024-11-13 23:44:26,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:26,894 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 250 transitions. [2024-11-13 23:44:26,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-13 23:44:26,895 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 250 transitions. [2024-11-13 23:44:26,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 23:44:26,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:26,900 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] [2024-11-13 23:44:26,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-13 23:44:27,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:27,101 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:27,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:27,102 INFO L85 PathProgramCache]: Analyzing trace with hash -871996458, now seen corresponding path program 1 times [2024-11-13 23:44:27,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:44:27,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701738034] [2024-11-13 23:44:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:27,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:27,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:44:27,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:44:27,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 23:44:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:31,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 1795 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:44:31,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:31,970 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-13 23:44:31,970 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:44:31,970 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:44:31,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701738034] [2024-11-13 23:44:31,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701738034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:31,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:31,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:44:31,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092653948] [2024-11-13 23:44:31,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:31,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:44:31,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:44:31,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:44:31,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:44:31,975 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) [2024-11-13 23:44:33,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:33,057 INFO L93 Difference]: Finished difference Result 359 states and 505 transitions. [2024-11-13 23:44:33,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:44:33,058 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 [2024-11-13 23:44:33,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:33,066 INFO L225 Difference]: With dead ends: 359 [2024-11-13 23:44:33,067 INFO L226 Difference]: Without dead ends: 185 [2024-11-13 23:44:33,068 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 [2024-11-13 23:44:33,071 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 213 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:33,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 749 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 23:44:33,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-13 23:44:33,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-11-13 23:44:33,102 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) [2024-11-13 23:44:33,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 257 transitions. [2024-11-13 23:44:33,107 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 257 transitions. Word has length 133 [2024-11-13 23:44:33,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:33,109 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 257 transitions. [2024-11-13 23:44:33,109 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) [2024-11-13 23:44:33,109 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 257 transitions. [2024-11-13 23:44:33,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-13 23:44:33,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:33,116 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] [2024-11-13 23:44:33,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-13 23:44:33,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:33,317 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:33,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:33,318 INFO L85 PathProgramCache]: Analyzing trace with hash -356521725, now seen corresponding path program 1 times [2024-11-13 23:44:33,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:44:33,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219146983] [2024-11-13 23:44:33,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:33,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:33,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:44:33,321 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:44:33,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-13 23:44:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:37,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:44:37,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:37,878 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-13 23:44:37,879 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:44:37,879 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:44:37,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219146983] [2024-11-13 23:44:37,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219146983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:37,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:37,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:44:37,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11206378] [2024-11-13 23:44:37,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:37,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:44:37,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:44:37,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:44:37,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:44:37,881 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) [2024-11-13 23:44:38,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:38,718 INFO L93 Difference]: Finished difference Result 371 states and 519 transitions. [2024-11-13 23:44:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:44:38,720 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 [2024-11-13 23:44:38,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:38,723 INFO L225 Difference]: With dead ends: 371 [2024-11-13 23:44:38,723 INFO L226 Difference]: Without dead ends: 191 [2024-11-13 23:44:38,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:44:38,725 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 335 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 758 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 [2024-11-13 23:44:38,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 758 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 23:44:38,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-13 23:44:38,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2024-11-13 23:44:38,753 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) [2024-11-13 23:44:38,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 257 transitions. [2024-11-13 23:44:38,756 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 257 transitions. Word has length 138 [2024-11-13 23:44:38,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:38,756 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 257 transitions. [2024-11-13 23:44:38,757 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) [2024-11-13 23:44:38,757 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 257 transitions. [2024-11-13 23:44:38,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-13 23:44:38,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:38,759 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:38,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-13 23:44:38,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:38,960 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:38,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:38,960 INFO L85 PathProgramCache]: Analyzing trace with hash -664384435, now seen corresponding path program 1 times [2024-11-13 23:44:38,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:44:38,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597223964] [2024-11-13 23:44:38,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:38,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:38,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:44:38,963 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:44:38,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-13 23:44:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:42,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:44:42,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:42,950 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-13 23:44:42,950 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:44:42,950 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:44:42,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597223964] [2024-11-13 23:44:42,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597223964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:42,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:42,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:44:42,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53239828] [2024-11-13 23:44:42,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:42,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:44:42,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:44:42,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:44:42,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:44:42,952 INFO L87 Difference]: Start difference. First operand 185 states and 257 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 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) [2024-11-13 23:44:43,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:43,775 INFO L93 Difference]: Finished difference Result 371 states and 519 transitions. [2024-11-13 23:44:43,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:44:43,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 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 148 [2024-11-13 23:44:43,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:43,778 INFO L225 Difference]: With dead ends: 371 [2024-11-13 23:44:43,778 INFO L226 Difference]: Without dead ends: 191 [2024-11-13 23:44:43,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:44:43,780 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 334 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:43,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 758 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 23:44:43,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-13 23:44:43,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2024-11-13 23:44:43,799 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) [2024-11-13 23:44:43,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 257 transitions. [2024-11-13 23:44:43,801 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 257 transitions. Word has length 148 [2024-11-13 23:44:43,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:43,802 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 257 transitions. [2024-11-13 23:44:43,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 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) [2024-11-13 23:44:43,802 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 257 transitions. [2024-11-13 23:44:43,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-13 23:44:43,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:43,807 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:43,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/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 [2024-11-13 23:44:44,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:44,007 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:44,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:44,008 INFO L85 PathProgramCache]: Analyzing trace with hash 93182992, now seen corresponding path program 1 times [2024-11-13 23:44:44,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:44:44,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900279831] [2024-11-13 23:44:44,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:44,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:44,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:44:44,011 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:44:44,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-13 23:44:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:47,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:44:47,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:47,830 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-13 23:44:47,831 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:44:47,831 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:44:47,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900279831] [2024-11-13 23:44:47,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900279831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:47,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:47,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:44:47,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925813090] [2024-11-13 23:44:47,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:47,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:44:47,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:44:47,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:44:47,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:44:47,833 INFO L87 Difference]: Start difference. First operand 185 states and 257 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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) [2024-11-13 23:44:48,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:48,678 INFO L93 Difference]: Finished difference Result 371 states and 519 transitions. [2024-11-13 23:44:48,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:44:48,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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 [2024-11-13 23:44:48,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:48,681 INFO L225 Difference]: With dead ends: 371 [2024-11-13 23:44:48,681 INFO L226 Difference]: Without dead ends: 191 [2024-11-13 23:44:48,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:44:48,683 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 333 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 758 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 [2024-11-13 23:44:48,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 758 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 23:44:48,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-13 23:44:48,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2024-11-13 23:44:48,696 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) [2024-11-13 23:44:48,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 257 transitions. [2024-11-13 23:44:48,698 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 257 transitions. Word has length 153 [2024-11-13 23:44:48,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:48,699 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 257 transitions. [2024-11-13 23:44:48,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 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) [2024-11-13 23:44:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 257 transitions. [2024-11-13 23:44:48,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-13 23:44:48,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:48,702 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] [2024-11-13 23:44:48,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/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 [2024-11-13 23:44:48,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:48,902 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:48,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:48,903 INFO L85 PathProgramCache]: Analyzing trace with hash -511995474, now seen corresponding path program 1 times [2024-11-13 23:44:48,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:44:48,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482854359] [2024-11-13 23:44:48,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:48,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:48,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:44:48,906 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:44:48,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-13 23:44:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:52,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 1820 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:44:52,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:53,092 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-13 23:44:53,093 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:44:53,093 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:44:53,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482854359] [2024-11-13 23:44:53,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482854359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:53,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:53,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:44:53,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753592949] [2024-11-13 23:44:53,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:53,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:44:53,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:44:53,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:44:53,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:44:53,095 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) [2024-11-13 23:44:53,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:53,953 INFO L93 Difference]: Finished difference Result 371 states and 519 transitions. [2024-11-13 23:44:53,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:44:53,955 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 [2024-11-13 23:44:53,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:53,957 INFO L225 Difference]: With dead ends: 371 [2024-11-13 23:44:53,957 INFO L226 Difference]: Without dead ends: 191 [2024-11-13 23:44:53,958 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 [2024-11-13 23:44:53,959 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 337 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:53,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 753 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 23:44:53,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-13 23:44:53,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2024-11-13 23:44:53,976 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) [2024-11-13 23:44:53,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 257 transitions. [2024-11-13 23:44:53,978 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 257 transitions. Word has length 158 [2024-11-13 23:44:53,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:53,979 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 257 transitions. [2024-11-13 23:44:53,979 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) [2024-11-13 23:44:53,979 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 257 transitions. [2024-11-13 23:44:53,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-13 23:44:53,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:53,982 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] [2024-11-13 23:44:54,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-13 23:44:54,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:54,182 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:54,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:54,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1394329334, now seen corresponding path program 1 times [2024-11-13 23:44:54,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:44:54,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598014938] [2024-11-13 23:44:54,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:54,184 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:54,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:44:54,186 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:44:54,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-13 23:44:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:57,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 1807 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 23:44:57,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:58,614 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-13 23:44:58,614 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:44:58,614 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:44:58,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598014938] [2024-11-13 23:44:58,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598014938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:58,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:58,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:44:58,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652828039] [2024-11-13 23:44:58,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:58,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:44:58,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:44:58,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:44:58,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:44:58,616 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) [2024-11-13 23:44:59,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:59,546 INFO L93 Difference]: Finished difference Result 371 states and 519 transitions. [2024-11-13 23:44:59,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:44:59,548 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 [2024-11-13 23:44:59,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:59,550 INFO L225 Difference]: With dead ends: 371 [2024-11-13 23:44:59,550 INFO L226 Difference]: Without dead ends: 191 [2024-11-13 23:44:59,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:44:59,554 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 329 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:59,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 703 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 23:44:59,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-13 23:44:59,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2024-11-13 23:44:59,571 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) [2024-11-13 23:44:59,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 257 transitions. [2024-11-13 23:44:59,573 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 257 transitions. Word has length 153 [2024-11-13 23:44:59,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:59,574 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 257 transitions. [2024-11-13 23:44:59,575 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) [2024-11-13 23:44:59,575 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 257 transitions. [2024-11-13 23:44:59,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 23:44:59,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:59,577 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] [2024-11-13 23:44:59,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/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)] Forceful destruction successful, exit code 0 [2024-11-13 23:44:59,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:59,778 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:59,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:59,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1767689066, now seen corresponding path program 1 times [2024-11-13 23:44:59,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:44:59,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484878185] [2024-11-13 23:44:59,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:59,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:44:59,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:44:59,784 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:44:59,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-13 23:45:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:03,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:45:03,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-13 23:45:05,238 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:05,238 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:05,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484878185] [2024-11-13 23:45:05,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484878185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:05,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:05,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:45:05,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332126485] [2024-11-13 23:45:05,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:05,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:45:05,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:05,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:45:05,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:45:05,240 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) [2024-11-13 23:45:06,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:06,041 INFO L93 Difference]: Finished difference Result 196 states and 268 transitions. [2024-11-13 23:45:06,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:45:06,042 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 [2024-11-13 23:45:06,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:06,044 INFO L225 Difference]: With dead ends: 196 [2024-11-13 23:45:06,045 INFO L226 Difference]: Without dead ends: 182 [2024-11-13 23:45:06,045 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 [2024-11-13 23:45:06,045 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 197 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:06,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 755 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 23:45:06,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-13 23:45:06,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-13 23:45:06,068 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) [2024-11-13 23:45:06,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 252 transitions. [2024-11-13 23:45:06,073 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 252 transitions. Word has length 157 [2024-11-13 23:45:06,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:06,074 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 252 transitions. [2024-11-13 23:45:06,074 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) [2024-11-13 23:45:06,074 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 252 transitions. [2024-11-13 23:45:06,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-13 23:45:06,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:06,077 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] [2024-11-13 23:45:06,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-13 23:45:06,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:45:06,277 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:06,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:06,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2097228815, now seen corresponding path program 1 times [2024-11-13 23:45:06,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:06,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649260640] [2024-11-13 23:45:06,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:06,279 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 [2024-11-13 23:45:06,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:06,280 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:45:06,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-13 23:45:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:09,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 1825 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:45:09,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:12,072 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-13 23:45:12,072 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:12,072 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:12,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649260640] [2024-11-13 23:45:12,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649260640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:12,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:12,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:45:12,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132109676] [2024-11-13 23:45:12,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:12,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:45:12,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:12,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:45:12,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:45:12,077 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) [2024-11-13 23:45:12,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:12,888 INFO L93 Difference]: Finished difference Result 187 states and 256 transitions. [2024-11-13 23:45:12,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:45:12,889 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 [2024-11-13 23:45:12,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:12,892 INFO L225 Difference]: With dead ends: 187 [2024-11-13 23:45:12,892 INFO L226 Difference]: Without dead ends: 182 [2024-11-13 23:45:12,893 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 [2024-11-13 23:45:12,893 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 193 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 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 [2024-11-13 23:45:12,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 742 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 23:45:12,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-13 23:45:12,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-13 23:45:12,912 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) [2024-11-13 23:45:12,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 251 transitions. [2024-11-13 23:45:12,914 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 251 transitions. Word has length 163 [2024-11-13 23:45:12,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:12,915 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 251 transitions. [2024-11-13 23:45:12,915 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) [2024-11-13 23:45:12,915 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 251 transitions. [2024-11-13 23:45:12,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-13 23:45:12,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:12,918 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] [2024-11-13 23:45:12,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/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 [2024-11-13 23:45:13,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:45:13,119 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:13,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:13,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1344225999, now seen corresponding path program 1 times [2024-11-13 23:45:13,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:13,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392278652] [2024-11-13 23:45:13,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:13,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:45:13,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:13,124 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:45:13,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-13 23:45:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:16,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 1820 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:45:16,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:18,574 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-13 23:45:18,574 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:18,574 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:18,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392278652] [2024-11-13 23:45:18,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392278652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:18,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:18,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:45:18,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703221792] [2024-11-13 23:45:18,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:18,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:45:18,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:18,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:45:18,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:45:18,576 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) [2024-11-13 23:45:19,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:19,460 INFO L93 Difference]: Finished difference Result 193 states and 262 transitions. [2024-11-13 23:45:19,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:45:19,461 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 [2024-11-13 23:45:19,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:19,464 INFO L225 Difference]: With dead ends: 193 [2024-11-13 23:45:19,465 INFO L226 Difference]: Without dead ends: 179 [2024-11-13 23:45:19,465 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 [2024-11-13 23:45:19,467 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 [2024-11-13 23:45:19,468 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] [2024-11-13 23:45:19,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-13 23:45:19,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-13 23:45:19,487 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) [2024-11-13 23:45:19,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 246 transitions. [2024-11-13 23:45:19,490 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 246 transitions. Word has length 158 [2024-11-13 23:45:19,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:19,491 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 246 transitions. [2024-11-13 23:45:19,492 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) [2024-11-13 23:45:19,492 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 246 transitions. [2024-11-13 23:45:19,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-13 23:45:19,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:19,498 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] [2024-11-13 23:45:19,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-13 23:45:19,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:45:19,703 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:19,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:19,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1232064111, now seen corresponding path program 1 times [2024-11-13 23:45:19,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:19,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738544218] [2024-11-13 23:45:19,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:19,706 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:45:19,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:19,708 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:45:19,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/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 [2024-11-13 23:45:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:23,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 1822 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:45:23,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:25,752 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 23:45:25,753 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:25,753 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:25,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738544218] [2024-11-13 23:45:25,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738544218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:25,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:25,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:45:25,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845862708] [2024-11-13 23:45:25,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:25,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:45:25,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:25,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:45:25,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:45:25,755 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) [2024-11-13 23:45:26,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:26,539 INFO L93 Difference]: Finished difference Result 190 states and 257 transitions. [2024-11-13 23:45:26,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:45:26,539 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 [2024-11-13 23:45:26,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:26,541 INFO L225 Difference]: With dead ends: 190 [2024-11-13 23:45:26,541 INFO L226 Difference]: Without dead ends: 176 [2024-11-13 23:45:26,542 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 [2024-11-13 23:45:26,542 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 187 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 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 [2024-11-13 23:45:26,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 717 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 23:45:26,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-13 23:45:26,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-13 23:45:26,557 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) [2024-11-13 23:45:26,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 241 transitions. [2024-11-13 23:45:26,558 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 241 transitions. Word has length 160 [2024-11-13 23:45:26,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:26,559 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 241 transitions. [2024-11-13 23:45:26,559 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) [2024-11-13 23:45:26,559 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 241 transitions. [2024-11-13 23:45:26,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-13 23:45:26,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:26,562 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] [2024-11-13 23:45:26,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/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)] Forceful destruction successful, exit code 0 [2024-11-13 23:45:26,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:45:26,762 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:26,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:26,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1702750896, now seen corresponding path program 1 times [2024-11-13 23:45:26,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:26,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212488110] [2024-11-13 23:45:26,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:26,764 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:45:26,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:26,766 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:45:26,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/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 [2024-11-13 23:45:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:31,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 1823 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:45:31,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:32,882 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-13 23:45:32,882 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:32,882 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:32,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212488110] [2024-11-13 23:45:32,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212488110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:32,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:32,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:45:32,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785201109] [2024-11-13 23:45:32,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:32,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:45:32,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:32,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:45:32,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:45:32,884 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) [2024-11-13 23:45:33,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:33,615 INFO L93 Difference]: Finished difference Result 187 states and 252 transitions. [2024-11-13 23:45:33,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:45:33,616 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 [2024-11-13 23:45:33,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:33,618 INFO L225 Difference]: With dead ends: 187 [2024-11-13 23:45:33,618 INFO L226 Difference]: Without dead ends: 173 [2024-11-13 23:45:33,618 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 [2024-11-13 23:45:33,619 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 183 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:33,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 698 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 23:45:33,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-13 23:45:33,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-13 23:45:33,636 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) [2024-11-13 23:45:33,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 236 transitions. [2024-11-13 23:45:33,638 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 236 transitions. Word has length 161 [2024-11-13 23:45:33,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:33,639 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 236 transitions. [2024-11-13 23:45:33,639 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) [2024-11-13 23:45:33,639 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 236 transitions. [2024-11-13 23:45:33,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-13 23:45:33,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:33,641 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] [2024-11-13 23:45:33,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/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)] Forceful destruction successful, exit code 0 [2024-11-13 23:45:33,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:45:33,845 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:33,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:33,845 INFO L85 PathProgramCache]: Analyzing trace with hash -999703234, now seen corresponding path program 1 times [2024-11-13 23:45:33,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:33,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965815269] [2024-11-13 23:45:33,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:33,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:45:33,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:33,848 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:45:33,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/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 [2024-11-13 23:45:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:37,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 1824 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:45:37,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-13 23:45:39,558 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:39,558 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:39,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965815269] [2024-11-13 23:45:39,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965815269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:39,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:39,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:45:39,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925197445] [2024-11-13 23:45:39,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:39,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:45:39,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:39,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:45:39,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:45:39,560 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) [2024-11-13 23:45:40,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:40,308 INFO L93 Difference]: Finished difference Result 184 states and 247 transitions. [2024-11-13 23:45:40,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:45:40,309 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 [2024-11-13 23:45:40,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:40,311 INFO L225 Difference]: With dead ends: 184 [2024-11-13 23:45:40,311 INFO L226 Difference]: Without dead ends: 167 [2024-11-13 23:45:40,311 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 [2024-11-13 23:45:40,312 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 307 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:40,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 674 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 23:45:40,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-13 23:45:40,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-13 23:45:40,328 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) [2024-11-13 23:45:40,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 226 transitions. [2024-11-13 23:45:40,330 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 226 transitions. Word has length 162 [2024-11-13 23:45:40,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:40,330 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 226 transitions. [2024-11-13 23:45:40,330 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) [2024-11-13 23:45:40,330 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 226 transitions. [2024-11-13 23:45:40,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-13 23:45:40,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:40,332 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] [2024-11-13 23:45:40,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-13 23:45:40,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:45:40,533 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:40,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:40,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1914547446, now seen corresponding path program 1 times [2024-11-13 23:45:40,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:40,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145100914] [2024-11-13 23:45:40,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:40,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 23:45:40,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:40,536 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 23:45:40,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac23d61-ab6b-4338-9e9a-d069d30ba680/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 [2024-11-13 23:45:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:52,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 1822 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-13 23:45:52,031 INFO L278 TraceCheckSpWp]: Computing forward predicates...