./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_3_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_3_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje --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 dc2ec1b0948642cc0812f9243941bb0af0f8a0ce726e636b78d2ca93075c1b54 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:47:17,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:47:17,516 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:47:17,525 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:47:17,526 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:47:17,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:47:17,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:47:17,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:47:17,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:47:17,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:47:17,585 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:47:17,586 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:47:17,587 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:47:17,587 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:47:17,587 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:47:17,588 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:47:17,588 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:47:17,588 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:47:17,589 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:47:17,589 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:47:17,594 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:47:17,595 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:47:17,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:47:17,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:47:17,599 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:47:17,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:47:17,599 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:47:17,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:47:17,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:47:17,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:47:17,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:47:17,602 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:47:17,602 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:47:17,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:47:17,603 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:47:17,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:47:17,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:47:17,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:47:17,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:47:17,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:47:17,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:47:17,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:47:17,607 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:47:17,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:47:17,608 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:47:17,608 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:47:17,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:47:17,609 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc2ec1b0948642cc0812f9243941bb0af0f8a0ce726e636b78d2ca93075c1b54 [2024-11-09 05:47:17,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:47:18,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:47:18,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:47:18,015 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:47:18,015 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:47:18,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_3_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 05:47:20,404 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:47:20,931 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:47:20,931 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_3_unsafe.c-amalgamation.i [2024-11-09 05:47:20,967 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/data/b6ab989ce/8d64b154859d46b68d5106c329fd1664/FLAG1958070dd [2024-11-09 05:47:20,991 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/data/b6ab989ce/8d64b154859d46b68d5106c329fd1664 [2024-11-09 05:47:20,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:47:20,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:47:21,002 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:47:21,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:47:21,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:47:21,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:47:20" (1/1) ... [2024-11-09 05:47:21,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564dbfe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:21, skipping insertion in model container [2024-11-09 05:47:21,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:47:20" (1/1) ... [2024-11-09 05:47:21,114 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:47:22,613 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:627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3125) 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:1625) 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:1507) 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:3216) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:3061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2295) 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:1652) 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:3539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2522) 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) [2024-11-09 05:47:22,624 INFO L158 Benchmark]: Toolchain (without parser) took 1625.48ms. Allocated memory is still 148.9MB. Free memory was 112.9MB in the beginning and 89.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 05:47:22,625 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory was 77.9MB in the beginning and 77.8MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:47:22,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1619.69ms. Allocated memory is still 148.9MB. Free memory was 112.9MB in the beginning and 89.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 05:47:22,628 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory was 77.9MB in the beginning and 77.8MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1619.69ms. Allocated memory is still 148.9MB. Free memory was 112.9MB in the beginning and 89.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. 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:627) 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_3_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje --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 dc2ec1b0948642cc0812f9243941bb0af0f8a0ce726e636b78d2ca93075c1b54 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:47:25,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:47:25,530 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 05:47:25,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:47:25,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:47:25,588 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:47:25,591 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:47:25,592 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:47:25,593 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:47:25,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:47:25,596 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:47:25,596 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:47:25,597 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:47:25,600 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:47:25,600 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:47:25,601 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:47:25,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:47:25,602 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:47:25,603 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:47:25,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:47:25,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:47:25,604 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:47:25,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:47:25,605 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:47:25,606 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:47:25,606 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:47:25,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:47:25,607 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:47:25,608 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:47:25,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:47:25,609 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:47:25,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:47:25,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:47:25,610 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:47:25,611 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:47:25,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:47:25,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:47:25,612 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:47:25,613 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:47:25,613 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:47:25,614 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:47:25,614 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:47:25,615 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:47:25,615 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc2ec1b0948642cc0812f9243941bb0af0f8a0ce726e636b78d2ca93075c1b54 [2024-11-09 05:47:26,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:47:26,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:47:26,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:47:26,150 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:47:26,150 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:47:26,152 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_3_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 05:47:28,564 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:47:29,211 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:47:29,211 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_3_unsafe.c-amalgamation.i [2024-11-09 05:47:29,259 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/data/c916cd1c3/e29385c3450545c1af64be69f308245b/FLAG49300c215 [2024-11-09 05:47:29,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/data/c916cd1c3/e29385c3450545c1af64be69f308245b [2024-11-09 05:47:29,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:47:29,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:47:29,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:47:29,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:47:29,303 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:47:29,304 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:47:29" (1/1) ... [2024-11-09 05:47:29,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18bb7a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:29, skipping insertion in model container [2024-11-09 05:47:29,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:47:29" (1/1) ... [2024-11-09 05:47:29,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:47:30,783 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_760f31d7-70a5-49fb-8f2c-b08243688083/sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_3_unsafe.c-amalgamation.i[71467,71480] [2024-11-09 05:47:31,204 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:47:31,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:47:31,227 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:47:31,366 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_760f31d7-70a5-49fb-8f2c-b08243688083/sv-benchmarks/c/neural-networks/poly_8_8_8_thresh_3_unsafe.c-amalgamation.i[71467,71480] [2024-11-09 05:47:31,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:47:31,949 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:47:31,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:31 WrapperNode [2024-11-09 05:47:31,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:47:31,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:47:31,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:47:31,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:47:31,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:31" (1/1) ... [2024-11-09 05:47:32,049 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:31" (1/1) ... [2024-11-09 05:47:32,219 INFO L138 Inliner]: procedures = 779, calls = 784, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1348 [2024-11-09 05:47:32,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:47:32,221 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:47:32,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:47:32,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:47:32,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:31" (1/1) ... [2024-11-09 05:47:32,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:31" (1/1) ... [2024-11-09 05:47:32,255 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:31" (1/1) ... [2024-11-09 05:47:32,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:31" (1/1) ... [2024-11-09 05:47:32,313 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:31" (1/1) ... [2024-11-09 05:47:32,323 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:31" (1/1) ... [2024-11-09 05:47:32,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:31" (1/1) ... [2024-11-09 05:47:32,338 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:31" (1/1) ... [2024-11-09 05:47:32,351 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:47:32,352 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:47:32,352 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:47:32,352 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:47:32,353 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:31" (1/1) ... [2024-11-09 05:47:32,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:47:32,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:47:32,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:47:32,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:47:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 05:47:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-09 05:47:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:47:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:47:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:47:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:47:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:47:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:47:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:47:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_idx2sub [2024-11-09 05:47:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_idx2sub [2024-11-09 05:47:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-09 05:47:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-09 05:47:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:47:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:47:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 05:47:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-09 05:47:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 05:47:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_dense [2024-11-09 05:47:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_dense [2024-11-09 05:47:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 05:47:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 05:47:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:47:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_sub2idx [2024-11-09 05:47:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_sub2idx [2024-11-09 05:47:32,909 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:47:32,912 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:47:54,823 INFO L? ?]: Removed 295 outVars from TransFormulas that were not future-live. [2024-11-09 05:47:54,824 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:47:54,842 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:47:54,842 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 05:47:54,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:47:54 BoogieIcfgContainer [2024-11-09 05:47:54,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:47:54,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:47:54,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:47:54,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:47:54,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:47:29" (1/3) ... [2024-11-09 05:47:54,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5011410c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:47:54, skipping insertion in model container [2024-11-09 05:47:54,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:47:31" (2/3) ... [2024-11-09 05:47:54,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5011410c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:47:54, skipping insertion in model container [2024-11-09 05:47:54,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:47:54" (3/3) ... [2024-11-09 05:47:54,854 INFO L112 eAbstractionObserver]: Analyzing ICFG poly_8_8_8_thresh_3_unsafe.c-amalgamation.i [2024-11-09 05:47:54,873 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:47:54,874 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:47:54,966 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:47:54,973 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;@64f90505, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:47:54,975 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:47:54,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 222 states, 203 states have (on average 1.5467980295566504) internal successors, (314), 204 states have internal predecessors, (314), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:47:55,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 05:47:55,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:55,012 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:47:55,013 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:47:55,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:55,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1837915694, now seen corresponding path program 1 times [2024-11-09 05:47:55,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:47:55,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992146828] [2024-11-09 05:47:55,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:55,044 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 [2024-11-09 05:47:55,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:47:55,047 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:47:55,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:48:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:02,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 2635 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 05:48:02,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:02,752 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 05:48:02,752 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:48:02,753 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:48:02,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992146828] [2024-11-09 05:48:02,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992146828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:02,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:48:02,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:48:02,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903278519] [2024-11-09 05:48:02,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:02,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:48:02,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:48:02,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:48:02,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:48:02,805 INFO L87 Difference]: Start difference. First operand has 222 states, 203 states have (on average 1.5467980295566504) internal successors, (314), 204 states have internal predecessors, (314), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 05:48:02,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:02,892 INFO L93 Difference]: Finished difference Result 441 states and 676 transitions. [2024-11-09 05:48:02,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:48:02,897 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 108 [2024-11-09 05:48:02,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:02,911 INFO L225 Difference]: With dead ends: 441 [2024-11-09 05:48:02,911 INFO L226 Difference]: Without dead ends: 218 [2024-11-09 05:48:02,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:48:02,926 INFO L432 NwaCegarLoop]: 332 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, 332 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 [2024-11-09 05:48:02,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:48:02,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-09 05:48:02,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2024-11-09 05:48:02,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 200 states have (on average 1.52) internal successors, (304), 200 states have internal predecessors, (304), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:48:03,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 328 transitions. [2024-11-09 05:48:03,005 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 328 transitions. Word has length 108 [2024-11-09 05:48:03,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:03,009 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 328 transitions. [2024-11-09 05:48:03,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 05:48:03,010 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 328 transitions. [2024-11-09 05:48:03,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 05:48:03,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:03,021 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:48:03,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:48:03,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:48:03,223 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:48:03,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:03,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1833770000, now seen corresponding path program 1 times [2024-11-09 05:48:03,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:48:03,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704265769] [2024-11-09 05:48:03,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:03,232 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 [2024-11-09 05:48:03,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:48:03,235 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:48:03,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:48:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:12,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 2636 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:48:12,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:13,154 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-09 05:48:13,154 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:48:13,157 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:48:13,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704265769] [2024-11-09 05:48:13,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704265769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:13,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:48:13,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:48:13,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170806988] [2024-11-09 05:48:13,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:13,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:48:13,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:48:13,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:48:13,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:48:13,165 INFO L87 Difference]: Start difference. First operand 218 states and 328 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:48:14,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:14,017 INFO L93 Difference]: Finished difference Result 437 states and 660 transitions. [2024-11-09 05:48:14,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:48:14,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 108 [2024-11-09 05:48:14,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:14,024 INFO L225 Difference]: With dead ends: 437 [2024-11-09 05:48:14,025 INFO L226 Difference]: Without dead ends: 224 [2024-11-09 05:48:14,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:48:14,029 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 474 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:14,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 1014 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:48:14,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-09 05:48:14,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2024-11-09 05:48:14,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 05:48:14,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 05:48:14,070 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 108 [2024-11-09 05:48:14,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:14,073 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 05:48:14,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:48:14,073 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 05:48:14,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-09 05:48:14,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:14,081 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:48:14,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:48:14,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:48:14,286 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:48:14,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:14,286 INFO L85 PathProgramCache]: Analyzing trace with hash 657366440, now seen corresponding path program 1 times [2024-11-09 05:48:14,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:48:14,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560789397] [2024-11-09 05:48:14,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:14,292 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 [2024-11-09 05:48:14,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:48:14,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:48:14,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:48:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:22,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 2640 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:48:22,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:23,111 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-09 05:48:23,112 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:48:23,112 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:48:23,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560789397] [2024-11-09 05:48:23,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560789397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:23,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:48:23,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:48:23,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429282797] [2024-11-09 05:48:23,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:23,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:48:23,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:48:23,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:48:23,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:48:23,118 INFO L87 Difference]: Start difference. First operand 224 states and 335 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:48:24,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:24,090 INFO L93 Difference]: Finished difference Result 449 states and 674 transitions. [2024-11-09 05:48:24,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:48:24,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 112 [2024-11-09 05:48:24,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:24,095 INFO L225 Difference]: With dead ends: 449 [2024-11-09 05:48:24,095 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 05:48:24,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:48:24,099 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 469 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:24,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 1023 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 05:48:24,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 05:48:24,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2024-11-09 05:48:24,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 05:48:24,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 05:48:24,144 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 112 [2024-11-09 05:48:24,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:24,146 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 05:48:24,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:48:24,147 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 05:48:24,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 05:48:24,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:24,152 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:48:24,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:48:24,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:48:24,353 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:48:24,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:24,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1986861192, now seen corresponding path program 1 times [2024-11-09 05:48:24,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:48:24,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507153839] [2024-11-09 05:48:24,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:24,360 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 [2024-11-09 05:48:24,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:48:24,369 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:48:24,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:48:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:33,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:48:33,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 05:48:34,708 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:48:34,708 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:48:34,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507153839] [2024-11-09 05:48:34,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507153839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:34,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:48:34,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:48:34,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882912560] [2024-11-09 05:48:34,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:34,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:48:34,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:48:34,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:48:34,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:48:34,712 INFO L87 Difference]: Start difference. First operand 224 states and 335 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:48:35,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:35,723 INFO L93 Difference]: Finished difference Result 449 states and 674 transitions. [2024-11-09 05:48:35,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:48:35,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 117 [2024-11-09 05:48:35,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:35,728 INFO L225 Difference]: With dead ends: 449 [2024-11-09 05:48:35,729 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 05:48:35,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:48:35,737 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 285 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:35,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1023 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 05:48:35,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 05:48:35,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2024-11-09 05:48:35,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 05:48:35,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 05:48:35,787 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 117 [2024-11-09 05:48:35,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:35,788 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 05:48:35,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:48:35,789 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 05:48:35,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-09 05:48:35,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:35,794 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:48:35,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-09 05:48:35,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:48:35,995 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:48:35,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:35,996 INFO L85 PathProgramCache]: Analyzing trace with hash 970808848, now seen corresponding path program 1 times [2024-11-09 05:48:35,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:48:35,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [472798176] [2024-11-09 05:48:35,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:35,999 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 [2024-11-09 05:48:35,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:48:36,002 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:48:36,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:48:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:44,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 2652 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:48:44,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 05:48:45,569 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:48:45,569 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:48:45,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [472798176] [2024-11-09 05:48:45,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [472798176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:45,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:48:45,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:48:45,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576262613] [2024-11-09 05:48:45,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:45,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:48:45,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:48:45,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:48:45,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:48:45,572 INFO L87 Difference]: Start difference. First operand 224 states and 335 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, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:48:46,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:46,465 INFO L93 Difference]: Finished difference Result 449 states and 674 transitions. [2024-11-09 05:48:46,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:48:46,471 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, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 124 [2024-11-09 05:48:46,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:46,478 INFO L225 Difference]: With dead ends: 449 [2024-11-09 05:48:46,479 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 05:48:46,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:48:46,482 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 284 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:46,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1023 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:48:46,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 05:48:46,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2024-11-09 05:48:46,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 05:48:46,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 05:48:46,524 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 124 [2024-11-09 05:48:46,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:46,525 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 05:48:46,525 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, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:48:46,526 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 05:48:46,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 05:48:46,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:46,531 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:48:46,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:48:46,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:48:46,733 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:48:46,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:46,734 INFO L85 PathProgramCache]: Analyzing trace with hash 919434852, now seen corresponding path program 1 times [2024-11-09 05:48:46,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:48:46,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051007661] [2024-11-09 05:48:46,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:46,739 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 [2024-11-09 05:48:46,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:48:46,743 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:48:46,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:48:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:48:56,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:48:56,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:48:57,670 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-09 05:48:57,670 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:48:57,671 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:48:57,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051007661] [2024-11-09 05:48:57,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051007661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:48:57,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:48:57,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:48:57,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680825572] [2024-11-09 05:48:57,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:48:57,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:48:57,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:48:57,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:48:57,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:48:57,675 INFO L87 Difference]: Start difference. First operand 224 states and 335 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, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:48:58,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:58,595 INFO L93 Difference]: Finished difference Result 449 states and 674 transitions. [2024-11-09 05:48:58,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:48:58,597 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, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 123 [2024-11-09 05:48:58,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:58,600 INFO L225 Difference]: With dead ends: 449 [2024-11-09 05:48:58,601 INFO L226 Difference]: Without dead ends: 230 [2024-11-09 05:48:58,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:48:58,604 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 532 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:58,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 950 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:48:58,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-09 05:48:58,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2024-11-09 05:48:58,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-09 05:48:58,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 335 transitions. [2024-11-09 05:48:58,639 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 335 transitions. Word has length 123 [2024-11-09 05:48:58,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:58,640 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 335 transitions. [2024-11-09 05:48:58,640 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, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 05:48:58,640 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2024-11-09 05:48:58,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-09 05:48:58,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:48:58,646 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:48:58,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:48:58,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:48:58,848 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:48:58,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:48:58,848 INFO L85 PathProgramCache]: Analyzing trace with hash -983398960, now seen corresponding path program 1 times [2024-11-09 05:48:58,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:48:58,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452651872] [2024-11-09 05:48:58,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:48:58,851 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 [2024-11-09 05:48:58,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:48:58,853 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:48:58,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:49:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:49:09,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 2660 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:49:09,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:49:11,487 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-09 05:49:11,488 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:49:11,488 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:49:11,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452651872] [2024-11-09 05:49:11,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452651872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:49:11,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:49:11,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:49:11,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054269660] [2024-11-09 05:49:11,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:49:11,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:49:11,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:49:11,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:49:11,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:49:11,493 INFO L87 Difference]: Start difference. First operand 224 states and 335 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:49:12,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:49:12,415 INFO L93 Difference]: Finished difference Result 229 states and 339 transitions. [2024-11-09 05:49:12,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:49:12,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 132 [2024-11-09 05:49:12,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:49:12,420 INFO L225 Difference]: With dead ends: 229 [2024-11-09 05:49:12,420 INFO L226 Difference]: Without dead ends: 224 [2024-11-09 05:49:12,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:49:12,422 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 460 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:49:12,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1026 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:49:12,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-09 05:49:12,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2024-11-09 05:49:12,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-09 05:49:12,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 334 transitions. [2024-11-09 05:49:12,451 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 334 transitions. Word has length 132 [2024-11-09 05:49:12,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:49:12,452 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 334 transitions. [2024-11-09 05:49:12,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:49:12,453 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 334 transitions. [2024-11-09 05:49:12,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 05:49:12,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:12,457 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:49:12,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-09 05:49:12,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:49:12,658 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:49:12,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:12,659 INFO L85 PathProgramCache]: Analyzing trace with hash -791229985, now seen corresponding path program 1 times [2024-11-09 05:49:12,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:49:12,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610768949] [2024-11-09 05:49:12,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:12,663 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 [2024-11-09 05:49:12,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:49:12,671 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:49:12,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:49:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:49:22,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 2654 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:49:22,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:49:24,720 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-09 05:49:24,721 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:49:24,721 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:49:24,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610768949] [2024-11-09 05:49:24,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610768949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:49:24,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:49:24,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:49:24,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436230285] [2024-11-09 05:49:24,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:49:24,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:49:24,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:49:24,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:49:24,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:49:24,724 INFO L87 Difference]: Start difference. First operand 224 states and 334 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:49:25,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:49:25,767 INFO L93 Difference]: Finished difference Result 235 states and 345 transitions. [2024-11-09 05:49:25,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:49:25,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 126 [2024-11-09 05:49:25,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:49:25,774 INFO L225 Difference]: With dead ends: 235 [2024-11-09 05:49:25,777 INFO L226 Difference]: Without dead ends: 220 [2024-11-09 05:49:25,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:49:25,782 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 453 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:49:25,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1020 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 05:49:25,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-09 05:49:25,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2024-11-09 05:49:25,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 200 states have (on average 1.505) internal successors, (301), 200 states have internal predecessors, (301), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-09 05:49:25,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 327 transitions. [2024-11-09 05:49:25,825 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 327 transitions. Word has length 126 [2024-11-09 05:49:25,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:49:25,826 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 327 transitions. [2024-11-09 05:49:25,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:49:25,827 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 327 transitions. [2024-11-09 05:49:25,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 05:49:25,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:25,830 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:49:25,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-09 05:49:26,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:49:26,031 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:49:26,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:26,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1059552859, now seen corresponding path program 1 times [2024-11-09 05:49:26,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:49:26,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432944607] [2024-11-09 05:49:26,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:26,036 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 [2024-11-09 05:49:26,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:49:26,037 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:49:26,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:49:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:49:36,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 2655 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:49:36,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:49:38,259 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-09 05:49:38,260 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:49:38,260 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:49:38,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432944607] [2024-11-09 05:49:38,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432944607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:49:38,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:49:38,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:49:38,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449264389] [2024-11-09 05:49:38,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:49:38,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:49:38,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:49:38,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:49:38,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:49:38,263 INFO L87 Difference]: Start difference. First operand 220 states and 327 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:49:38,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:49:38,986 INFO L93 Difference]: Finished difference Result 231 states and 338 transitions. [2024-11-09 05:49:38,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:49:38,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 127 [2024-11-09 05:49:38,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:49:38,990 INFO L225 Difference]: With dead ends: 231 [2024-11-09 05:49:38,990 INFO L226 Difference]: Without dead ends: 216 [2024-11-09 05:49:38,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:49:38,992 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 450 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:49:38,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 993 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:49:38,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-09 05:49:39,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-11-09 05:49:39,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 196 states have (on average 1.5) internal successors, (294), 196 states have internal predecessors, (294), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-09 05:49:39,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 320 transitions. [2024-11-09 05:49:39,017 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 320 transitions. Word has length 127 [2024-11-09 05:49:39,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:49:39,018 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 320 transitions. [2024-11-09 05:49:39,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:49:39,019 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 320 transitions. [2024-11-09 05:49:39,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 05:49:39,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:39,022 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:49:39,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:49:39,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:49:39,223 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:49:39,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:39,223 INFO L85 PathProgramCache]: Analyzing trace with hash -19525159, now seen corresponding path program 1 times [2024-11-09 05:49:39,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:49:39,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986347763] [2024-11-09 05:49:39,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:39,227 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 [2024-11-09 05:49:39,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:49:39,230 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:49:39,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:49:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:49:49,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 2657 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:49:49,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:49:51,324 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-09 05:49:51,324 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:49:51,325 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:49:51,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986347763] [2024-11-09 05:49:51,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986347763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:49:51,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:49:51,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:49:51,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760301296] [2024-11-09 05:49:51,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:49:51,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:49:51,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:49:51,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:49:51,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:49:51,327 INFO L87 Difference]: Start difference. First operand 216 states and 320 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:49:52,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:49:52,100 INFO L93 Difference]: Finished difference Result 227 states and 331 transitions. [2024-11-09 05:49:52,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:49:52,102 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 129 [2024-11-09 05:49:52,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:49:52,104 INFO L225 Difference]: With dead ends: 227 [2024-11-09 05:49:52,105 INFO L226 Difference]: Without dead ends: 212 [2024-11-09 05:49:52,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:49:52,106 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 263 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:49:52,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 966 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:49:52,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-09 05:49:52,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-11-09 05:49:52,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 192 states have (on average 1.4947916666666667) internal successors, (287), 192 states have internal predecessors, (287), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-09 05:49:52,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 313 transitions. [2024-11-09 05:49:52,130 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 313 transitions. Word has length 129 [2024-11-09 05:49:52,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:49:52,131 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 313 transitions. [2024-11-09 05:49:52,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:49:52,132 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 313 transitions. [2024-11-09 05:49:52,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 05:49:52,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:52,135 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:49:52,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:49:52,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:49:52,336 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:49:52,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:52,337 INFO L85 PathProgramCache]: Analyzing trace with hash -142996361, now seen corresponding path program 1 times [2024-11-09 05:49:52,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:49:52,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124581103] [2024-11-09 05:49:52,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:52,339 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 [2024-11-09 05:49:52,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:49:52,341 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:49:52,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:50:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:50:02,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 2658 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:50:02,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:50:04,182 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-09 05:50:04,182 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:50:04,183 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:50:04,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124581103] [2024-11-09 05:50:04,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124581103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:50:04,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:50:04,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:50:04,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88593164] [2024-11-09 05:50:04,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:50:04,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:50:04,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:50:04,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:50:04,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:50:04,185 INFO L87 Difference]: Start difference. First operand 212 states and 313 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:50:04,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:50:04,913 INFO L93 Difference]: Finished difference Result 223 states and 324 transitions. [2024-11-09 05:50:04,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:50:04,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 130 [2024-11-09 05:50:04,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:50:04,917 INFO L225 Difference]: With dead ends: 223 [2024-11-09 05:50:04,917 INFO L226 Difference]: Without dead ends: 208 [2024-11-09 05:50:04,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:50:04,919 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 436 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:50:04,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 939 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:50:04,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-09 05:50:04,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-11-09 05:50:04,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 188 states have (on average 1.4893617021276595) internal successors, (280), 188 states have internal predecessors, (280), 12 states have call successors, (12), 5 states have call predecessors, (12), 7 states have return successors, (14), 14 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-09 05:50:04,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 306 transitions. [2024-11-09 05:50:04,944 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 306 transitions. Word has length 130 [2024-11-09 05:50:04,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:50:04,945 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 306 transitions. [2024-11-09 05:50:04,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 05:50:04,945 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 306 transitions. [2024-11-09 05:50:04,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-09 05:50:04,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:50:04,948 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:50:05,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-09 05:50:05,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:50:05,149 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:50:05,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:50:05,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1249828469, now seen corresponding path program 1 times [2024-11-09 05:50:05,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:50:05,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993845919] [2024-11-09 05:50:05,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:50:05,161 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 [2024-11-09 05:50:05,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:50:05,169 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:50:05,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760f31d7-70a5-49fb-8f2c-b08243688083/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:52:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:03,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 2657 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-09 05:52:03,859 INFO L278 TraceCheckSpWp]: Computing forward predicates...