./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/poly_128_thresh_0_safe.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_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_128_thresh_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 668c3d29f0a14ccecf35b444f72a49f01cee2db46af2286bf0337ec5fa57071d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:19:16,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:19:16,904 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 01:19:16,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:19:16,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:19:16,952 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:19:16,953 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:19:16,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:19:16,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:19:16,957 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:19:16,957 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:19:16,958 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:19:16,959 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:19:16,959 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:19:16,961 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:19:16,962 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:19:16,962 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:19:16,962 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:19:16,963 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:19:16,963 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:19:16,963 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:19:16,968 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:19:16,968 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:19:16,968 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:19:16,969 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:19:16,969 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:19:16,969 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:19:16,969 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:19:16,970 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:19:16,970 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:19:16,970 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:19:16,970 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:19:16,971 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:19:16,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:19:16,971 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:19:16,972 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:19:16,973 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:19:16,973 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:19:16,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:19:16,973 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:19:16,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:19:16,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:19:16,974 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:19:16,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:19:16,975 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:19:16,975 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:19:16,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:19:16,975 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_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 668c3d29f0a14ccecf35b444f72a49f01cee2db46af2286bf0337ec5fa57071d [2024-11-09 01:19:17,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:19:17,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:19:17,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:19:17,346 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:19:17,347 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:19:17,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/poly_128_thresh_0_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 01:19:19,394 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:19:19,834 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:19:19,835 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/sv-benchmarks/c/neural-networks/poly_128_thresh_0_safe.c-amalgamation.i [2024-11-09 01:19:19,875 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/data/c00476e7b/5c0f38af22694d92ae79094e7dc73ad4/FLAG04c1dad5d [2024-11-09 01:19:19,976 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/data/c00476e7b/5c0f38af22694d92ae79094e7dc73ad4 [2024-11-09 01:19:19,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:19:19,982 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:19:19,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:19:19,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:19:19,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:19:19,992 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:19:19" (1/1) ... [2024-11-09 01:19:19,993 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dedede0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:19, skipping insertion in model container [2024-11-09 01:19:19,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:19:19" (1/1) ... [2024-11-09 01:19:20,073 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:19:21,411 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 01:19:21,428 INFO L158 Benchmark]: Toolchain (without parser) took 1439.85ms. Allocated memory is still 159.4MB. Free memory was 120.8MB in the beginning and 97.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 01:19:21,428 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:19:21,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1436.24ms. Allocated memory is still 159.4MB. Free memory was 120.4MB in the beginning and 97.8MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 01:19:21,431 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1436.24ms. Allocated memory is still 159.4MB. Free memory was 120.4MB in the beginning and 97.8MB in the end (delta: 22.6MB). 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_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/poly_128_thresh_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 668c3d29f0a14ccecf35b444f72a49f01cee2db46af2286bf0337ec5fa57071d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:19:23,798 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:19:23,893 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 01:19:23,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:19:23,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:19:23,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:19:23,943 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:19:23,943 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:19:23,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:19:23,946 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:19:23,947 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:19:23,947 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:19:23,948 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:19:23,953 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:19:23,954 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:19:23,954 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:19:23,955 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:19:23,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:19:23,956 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:19:23,956 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:19:23,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:19:23,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:19:23,959 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:19:23,960 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:19:23,960 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:19:23,960 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 01:19:23,961 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:19:23,961 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 01:19:23,962 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:19:23,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:19:23,962 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:19:23,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:19:23,963 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 01:19:23,963 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:19:23,963 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:19:23,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:19:23,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:19:23,964 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:19:23,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:19:23,965 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 01:19:23,967 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 01:19:23,968 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:19:23,985 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:19:23,986 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_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 668c3d29f0a14ccecf35b444f72a49f01cee2db46af2286bf0337ec5fa57071d [2024-11-09 01:19:24,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:19:24,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:19:24,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:19:24,499 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:19:24,499 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:19:24,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/poly_128_thresh_0_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 01:19:26,559 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:19:27,059 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:19:27,060 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/sv-benchmarks/c/neural-networks/poly_128_thresh_0_safe.c-amalgamation.i [2024-11-09 01:19:27,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/data/e73035835/89a63efb467e4aee8298a6f5e13ba51d/FLAG56b31395b [2024-11-09 01:19:27,158 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/data/e73035835/89a63efb467e4aee8298a6f5e13ba51d [2024-11-09 01:19:27,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:19:27,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:19:27,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:19:27,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:19:27,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:19:27,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:19:27" (1/1) ... [2024-11-09 01:19:27,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@498a9e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:27, skipping insertion in model container [2024-11-09 01:19:27,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:19:27" (1/1) ... [2024-11-09 01:19:27,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:19:28,991 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_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/sv-benchmarks/c/neural-networks/poly_128_thresh_0_safe.c-amalgamation.i[71457,71470] [2024-11-09 01:19:29,472 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 01:19:29,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:19:29,493 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:19:29,602 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_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/sv-benchmarks/c/neural-networks/poly_128_thresh_0_safe.c-amalgamation.i[71457,71470] [2024-11-09 01:19:29,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:19:30,033 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:19:30,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:30 WrapperNode [2024-11-09 01:19:30,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:19:30,035 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:19:30,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:19:30,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:19:30,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:30" (1/1) ... [2024-11-09 01:19:30,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:30" (1/1) ... [2024-11-09 01:19:30,250 INFO L138 Inliner]: procedures = 779, calls = 1242, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1793 [2024-11-09 01:19:30,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:19:30,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:19:30,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:19:30,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:19:30,264 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:30" (1/1) ... [2024-11-09 01:19:30,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:30" (1/1) ... [2024-11-09 01:19:30,288 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:30" (1/1) ... [2024-11-09 01:19:30,288 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:30" (1/1) ... [2024-11-09 01:19:30,351 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:30" (1/1) ... [2024-11-09 01:19:30,361 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:30" (1/1) ... [2024-11-09 01:19:30,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:30" (1/1) ... [2024-11-09 01:19:30,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:30" (1/1) ... [2024-11-09 01:19:30,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:19:30,452 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:19:30,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:19:30,452 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:19:30,453 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:30" (1/1) ... [2024-11-09 01:19:30,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:19:30,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:19:30,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:19:30,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:19:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 01:19:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2024-11-09 01:19:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:19:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:19:30,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:19:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 01:19:30,540 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 01:19:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 01:19:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 01:19:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_idx2sub [2024-11-09 01:19:30,541 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_idx2sub [2024-11-09 01:19:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-09 01:19:30,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-09 01:19:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:19:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 01:19:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 01:19:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-09 01:19:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 01:19:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_dense [2024-11-09 01:19:30,543 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_dense [2024-11-09 01:19:30,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 01:19:30,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 01:19:30,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 01:19:30,543 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_sub2idx [2024-11-09 01:19:30,543 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_sub2idx [2024-11-09 01:19:30,838 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:19:30,841 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:19:52,500 INFO L? ?]: Removed 289 outVars from TransFormulas that were not future-live. [2024-11-09 01:19:52,501 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:19:52,528 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:19:52,530 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 01:19:52,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:19:52 BoogieIcfgContainer [2024-11-09 01:19:52,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:19:52,535 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:19:52,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:19:52,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:19:52,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:19:27" (1/3) ... [2024-11-09 01:19:52,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717bbe52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:19:52, skipping insertion in model container [2024-11-09 01:19:52,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:30" (2/3) ... [2024-11-09 01:19:52,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717bbe52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:19:52, skipping insertion in model container [2024-11-09 01:19:52,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:19:52" (3/3) ... [2024-11-09 01:19:52,544 INFO L112 eAbstractionObserver]: Analyzing ICFG poly_128_thresh_0_safe.c-amalgamation.i [2024-11-09 01:19:52,565 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:19:52,565 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:19:52,773 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:19:52,780 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;@1fb1f503, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:19:52,781 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:19:52,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 220 states, 203 states have (on average 1.5467980295566504) internal successors, (314), 204 states have internal predecessors, (314), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:19:52,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 01:19:52,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:52,813 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:52,814 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:19:52,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:52,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1093136654, now seen corresponding path program 1 times [2024-11-09 01:19:52,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:19:52,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217609568] [2024-11-09 01:19:52,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:52,851 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 01:19:52,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:19:52,856 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:19:52,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:20:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:31,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 5357 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 01:20:31,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:20:31,396 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 01:20:31,397 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:20:31,398 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:20:31,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217609568] [2024-11-09 01:20:31,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217609568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:20:31,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:20:31,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:20:31,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019519964] [2024-11-09 01:20:31,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:20:31,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:20:31,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:20:31,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:20:31,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:20:31,441 INFO L87 Difference]: Start difference. First operand has 220 states, 203 states have (on average 1.5467980295566504) internal successors, (314), 204 states have internal predecessors, (314), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 01:20:31,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:31,513 INFO L93 Difference]: Finished difference Result 437 states and 666 transitions. [2024-11-09 01:20:31,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:20:31,518 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2024-11-09 01:20:31,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:31,530 INFO L225 Difference]: With dead ends: 437 [2024-11-09 01:20:31,530 INFO L226 Difference]: Without dead ends: 216 [2024-11-09 01:20:31,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 57 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 01:20:31,541 INFO L432 NwaCegarLoop]: 328 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, 328 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 01:20:31,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:20:31,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-09 01:20:31,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-11-09 01:20:31,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 200 states have (on average 1.52) internal successors, (304), 200 states have internal predecessors, (304), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 01:20:31,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 324 transitions. [2024-11-09 01:20:31,622 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 324 transitions. Word has length 58 [2024-11-09 01:20:31,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:31,623 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 324 transitions. [2024-11-09 01:20:31,624 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 01:20:31,624 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 324 transitions. [2024-11-09 01:20:31,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 01:20:31,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:31,629 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:31,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:20:31,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:20:31,830 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:20:31,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:31,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1133811404, now seen corresponding path program 1 times [2024-11-09 01:20:31,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:20:31,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180723289] [2024-11-09 01:20:31,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:31,836 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 01:20:31,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:20:31,840 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:20:31,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:21:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:21:07,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 5358 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:21:07,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:21:08,680 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:21:08,681 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:21:08,681 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:21:08,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180723289] [2024-11-09 01:21:08,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180723289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:21:08,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:21:08,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:21:08,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100327970] [2024-11-09 01:21:08,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:21:08,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:21:08,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:21:08,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:21:08,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:21:08,687 INFO L87 Difference]: Start difference. First operand 216 states and 324 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 01:21:09,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:21:09,546 INFO L93 Difference]: Finished difference Result 433 states and 650 transitions. [2024-11-09 01:21:09,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:21:09,547 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 58 [2024-11-09 01:21:09,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:21:09,551 INFO L225 Difference]: With dead ends: 433 [2024-11-09 01:21:09,551 INFO L226 Difference]: Without dead ends: 222 [2024-11-09 01:21:09,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 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 01:21:09,554 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 289 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:21:09,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1012 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 01:21:09,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-09 01:21:09,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2024-11-09 01:21:09,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-09 01:21:09,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2024-11-09 01:21:09,578 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 58 [2024-11-09 01:21:09,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:21:09,579 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2024-11-09 01:21:09,579 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 01:21:09,579 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2024-11-09 01:21:09,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 01:21:09,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:21:09,582 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:21:09,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:21:09,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:21:09,783 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:21:09,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:21:09,784 INFO L85 PathProgramCache]: Analyzing trace with hash -968654444, now seen corresponding path program 1 times [2024-11-09 01:21:09,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:21:09,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305433240] [2024-11-09 01:21:09,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:21:09,789 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 01:21:09,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:21:09,791 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:21:09,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:21:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:21:44,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 5360 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:21:44,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:21:44,833 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:21:44,833 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:21:44,833 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:21:44,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305433240] [2024-11-09 01:21:44,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305433240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:21:44,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:21:44,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:21:44,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800524019] [2024-11-09 01:21:44,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:21:44,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:21:44,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:21:44,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:21:44,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:21:44,837 INFO L87 Difference]: Start difference. First operand 222 states and 331 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 01:21:45,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:21:45,720 INFO L93 Difference]: Finished difference Result 445 states and 664 transitions. [2024-11-09 01:21:45,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:21:45,722 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 60 [2024-11-09 01:21:45,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:21:45,724 INFO L225 Difference]: With dead ends: 445 [2024-11-09 01:21:45,724 INFO L226 Difference]: Without dead ends: 228 [2024-11-09 01:21:45,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 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 01:21:45,726 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 464 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:21:45,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 1021 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 01:21:45,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-09 01:21:45,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2024-11-09 01:21:45,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-09 01:21:45,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2024-11-09 01:21:45,755 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 60 [2024-11-09 01:21:45,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:21:45,755 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2024-11-09 01:21:45,756 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 01:21:45,756 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2024-11-09 01:21:45,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 01:21:45,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:21:45,761 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:21:45,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:21:45,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:21:45,963 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:21:45,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:21:45,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1293844880, now seen corresponding path program 1 times [2024-11-09 01:21:45,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:21:45,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463088551] [2024-11-09 01:21:45,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:21:45,967 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 01:21:45,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:21:45,968 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:21:45,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:22:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:19,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 5364 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:22:19,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:20,215 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:22:20,215 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:22:20,216 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:20,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463088551] [2024-11-09 01:22:20,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463088551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:20,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:20,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:22:20,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871275166] [2024-11-09 01:22:20,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:20,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:22:20,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:20,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:22:20,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:22:20,220 INFO L87 Difference]: Start difference. First operand 222 states and 331 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 01:22:21,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:21,159 INFO L93 Difference]: Finished difference Result 445 states and 664 transitions. [2024-11-09 01:22:21,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:22:21,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 64 [2024-11-09 01:22:21,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:21,162 INFO L225 Difference]: With dead ends: 445 [2024-11-09 01:22:21,163 INFO L226 Difference]: Without dead ends: 228 [2024-11-09 01:22:21,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 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 01:22:21,165 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 462 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:21,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1021 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 01:22:21,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-09 01:22:21,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2024-11-09 01:22:21,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-09 01:22:21,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2024-11-09 01:22:21,192 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 64 [2024-11-09 01:22:21,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:21,192 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2024-11-09 01:22:21,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 01:22:21,193 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2024-11-09 01:22:21,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 01:22:21,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:21,196 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:21,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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)] Ended with exit code 0 [2024-11-09 01:22:21,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:22:21,397 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:21,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:21,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1223620660, now seen corresponding path program 1 times [2024-11-09 01:22:21,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:21,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50989425] [2024-11-09 01:22:21,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:21,402 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 01:22:21,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:21,405 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:22:21,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:22:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:55,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 5366 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:22:55,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:56,145 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:22:56,145 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:22:56,146 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:22:56,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50989425] [2024-11-09 01:22:56,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50989425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:56,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:56,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:22:56,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200089620] [2024-11-09 01:22:56,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:56,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:22:56,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:22:56,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:22:56,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:22:56,149 INFO L87 Difference]: Start difference. First operand 222 states and 331 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 01:22:57,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:57,061 INFO L93 Difference]: Finished difference Result 445 states and 664 transitions. [2024-11-09 01:22:57,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:22:57,062 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 66 [2024-11-09 01:22:57,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:57,065 INFO L225 Difference]: With dead ends: 445 [2024-11-09 01:22:57,065 INFO L226 Difference]: Without dead ends: 228 [2024-11-09 01:22:57,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 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 01:22:57,067 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 285 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:57,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 1021 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 01:22:57,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-09 01:22:57,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2024-11-09 01:22:57,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-09 01:22:57,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2024-11-09 01:22:57,102 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 66 [2024-11-09 01:22:57,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:57,105 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2024-11-09 01:22:57,106 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 01:22:57,106 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2024-11-09 01:22:57,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 01:22:57,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:57,108 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:57,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:22:57,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:22:57,309 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:57,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:57,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2055674952, now seen corresponding path program 1 times [2024-11-09 01:22:57,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:22:57,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100618473] [2024-11-09 01:22:57,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:57,314 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 01:22:57,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:22:57,316 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:22:57,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:23:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:23:31,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 5364 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:23:31,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:23:33,385 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:23:33,385 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:23:33,386 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:23:33,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100618473] [2024-11-09 01:23:33,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100618473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:23:33,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:23:33,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:23:33,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503038571] [2024-11-09 01:23:33,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:23:33,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:23:33,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:23:33,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:23:33,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:23:33,388 INFO L87 Difference]: Start difference. First operand 222 states and 331 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 01:23:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:23:34,194 INFO L93 Difference]: Finished difference Result 445 states and 664 transitions. [2024-11-09 01:23:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:23:34,195 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2024-11-09 01:23:34,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:23:34,197 INFO L225 Difference]: With dead ends: 445 [2024-11-09 01:23:34,197 INFO L226 Difference]: Without dead ends: 228 [2024-11-09 01:23:34,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:23:34,199 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 278 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:23:34,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 948 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 01:23:34,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-09 01:23:34,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2024-11-09 01:23:34,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-09 01:23:34,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 331 transitions. [2024-11-09 01:23:34,220 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 331 transitions. Word has length 68 [2024-11-09 01:23:34,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:23:34,221 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 331 transitions. [2024-11-09 01:23:34,221 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, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 01:23:34,222 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 331 transitions. [2024-11-09 01:23:34,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 01:23:34,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:23:34,224 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:23:34,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:23:34,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:23:34,424 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:23:34,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:23:34,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1972389804, now seen corresponding path program 1 times [2024-11-09 01:23:34,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:23:34,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515715420] [2024-11-09 01:23:34,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:23:34,430 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 01:23:34,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:23:34,431 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:23:34,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:24:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:24:08,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 5370 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:24:08,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:24:09,417 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 01:24:09,417 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:24:09,417 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:24:09,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515715420] [2024-11-09 01:24:09,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515715420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:24:09,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:24:09,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:24:09,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676572871] [2024-11-09 01:24:09,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:24:09,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:24:09,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:24:09,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:24:09,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:24:09,420 INFO L87 Difference]: Start difference. First operand 222 states and 331 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 01:24:10,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:24:10,093 INFO L93 Difference]: Finished difference Result 227 states and 335 transitions. [2024-11-09 01:24:10,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:24:10,094 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2024-11-09 01:24:10,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:24:10,096 INFO L225 Difference]: With dead ends: 227 [2024-11-09 01:24:10,096 INFO L226 Difference]: Without dead ends: 222 [2024-11-09 01:24:10,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 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 01:24:10,098 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 460 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:24:10,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1024 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 01:24:10,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-09 01:24:10,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2024-11-09 01:24:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-09 01:24:10,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 330 transitions. [2024-11-09 01:24:10,117 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 330 transitions. Word has length 70 [2024-11-09 01:24:10,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:24:10,117 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 330 transitions. [2024-11-09 01:24:10,117 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 01:24:10,118 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 330 transitions. [2024-11-09 01:24:10,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 01:24:10,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:24:10,119 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:24:10,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:24:10,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:24:10,320 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:24:10,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:24:10,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1678476411, now seen corresponding path program 1 times [2024-11-09 01:24:10,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:24:10,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901221449] [2024-11-09 01:24:10,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:24:10,331 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 01:24:10,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:24:10,332 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:24:10,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:24:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:24:43,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 5364 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:24:43,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:24:44,866 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 01:24:44,867 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:24:44,867 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:24:44,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901221449] [2024-11-09 01:24:44,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901221449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:24:44,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:24:44,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:24:44,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647821688] [2024-11-09 01:24:44,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:24:44,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:24:44,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:24:44,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:24:44,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:24:44,869 INFO L87 Difference]: Start difference. First operand 222 states and 330 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 01:24:45,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:24:45,589 INFO L93 Difference]: Finished difference Result 233 states and 341 transitions. [2024-11-09 01:24:45,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:24:45,590 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2024-11-09 01:24:45,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:24:45,592 INFO L225 Difference]: With dead ends: 233 [2024-11-09 01:24:45,592 INFO L226 Difference]: Without dead ends: 218 [2024-11-09 01:24:45,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 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 01:24:45,593 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 456 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:24:45,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1018 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 01:24:45,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-09 01:24:45,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2024-11-09 01:24:45,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 200 states have (on average 1.505) internal successors, (301), 200 states have internal predecessors, (301), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-09 01:24:45,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 323 transitions. [2024-11-09 01:24:45,614 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 323 transitions. Word has length 64 [2024-11-09 01:24:45,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:24:45,614 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 323 transitions. [2024-11-09 01:24:45,615 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 01:24:45,615 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 323 transitions. [2024-11-09 01:24:45,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 01:24:45,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:24:45,616 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:24:45,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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)] Ended with exit code 0 [2024-11-09 01:24:45,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:24:45,817 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:24:45,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:24:45,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1288467253, now seen corresponding path program 1 times [2024-11-09 01:24:45,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:24:45,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083621945] [2024-11-09 01:24:45,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:24:45,821 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 01:24:45,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:24:45,822 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:24:45,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:25:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:18,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 5365 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:25:18,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:19,580 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 01:25:19,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:19,581 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:19,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083621945] [2024-11-09 01:25:19,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083621945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:19,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:19,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:25:19,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730797489] [2024-11-09 01:25:19,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:19,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:25:19,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:19,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:25:19,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:25:19,583 INFO L87 Difference]: Start difference. First operand 218 states and 323 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 01:25:20,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:20,274 INFO L93 Difference]: Finished difference Result 229 states and 334 transitions. [2024-11-09 01:25:20,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:25:20,275 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2024-11-09 01:25:20,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:20,276 INFO L225 Difference]: With dead ends: 229 [2024-11-09 01:25:20,277 INFO L226 Difference]: Without dead ends: 214 [2024-11-09 01:25:20,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 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 01:25:20,278 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 447 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:20,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 991 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 01:25:20,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-09 01:25:20,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2024-11-09 01:25:20,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 196 states have (on average 1.5) internal successors, (294), 196 states have internal predecessors, (294), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-09 01:25:20,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 316 transitions. [2024-11-09 01:25:20,298 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 316 transitions. Word has length 65 [2024-11-09 01:25:20,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:20,298 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 316 transitions. [2024-11-09 01:25:20,298 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 01:25:20,299 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 316 transitions. [2024-11-09 01:25:20,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 01:25:20,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:20,300 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:20,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:25:20,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:25:20,500 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:25:20,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:20,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2136782579, now seen corresponding path program 1 times [2024-11-09 01:25:20,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:20,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1925940622] [2024-11-09 01:25:20,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:20,504 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 01:25:20,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:20,505 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:25:20,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:25:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:54,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 5367 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:25:54,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:55,213 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 01:25:55,214 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:25:55,214 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:25:55,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1925940622] [2024-11-09 01:25:55,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1925940622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:55,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:55,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:25:55,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623805424] [2024-11-09 01:25:55,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:55,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:25:55,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:25:55,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:25:55,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:25:55,216 INFO L87 Difference]: Start difference. First operand 214 states and 316 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 01:25:55,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:55,841 INFO L93 Difference]: Finished difference Result 225 states and 327 transitions. [2024-11-09 01:25:55,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:25:55,843 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 67 [2024-11-09 01:25:55,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:55,844 INFO L225 Difference]: With dead ends: 225 [2024-11-09 01:25:55,845 INFO L226 Difference]: Without dead ends: 210 [2024-11-09 01:25:55,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 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 01:25:55,846 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 440 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:55,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 964 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:25:55,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-09 01:25:55,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-11-09 01:25:55,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 192 states have (on average 1.4947916666666667) internal successors, (287), 192 states have internal predecessors, (287), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-09 01:25:55,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 309 transitions. [2024-11-09 01:25:55,864 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 309 transitions. Word has length 67 [2024-11-09 01:25:55,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:55,864 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 309 transitions. [2024-11-09 01:25:55,864 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 01:25:55,864 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 309 transitions. [2024-11-09 01:25:55,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 01:25:55,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:55,866 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:55,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:25:56,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:25:56,067 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:25:56,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:56,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1039505773, now seen corresponding path program 1 times [2024-11-09 01:25:56,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:25:56,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414128379] [2024-11-09 01:25:56,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:56,071 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 01:25:56,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:25:56,072 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:25:56,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:26:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:30,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 5368 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:26:30,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:26:31,939 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 01:26:31,939 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:26:31,939 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:26:31,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414128379] [2024-11-09 01:26:31,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414128379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:31,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:31,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:26:31,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837741383] [2024-11-09 01:26:31,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:31,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:26:31,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:26:31,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:26:31,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:26:31,941 INFO L87 Difference]: Start difference. First operand 210 states and 309 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 01:26:32,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:32,717 INFO L93 Difference]: Finished difference Result 221 states and 320 transitions. [2024-11-09 01:26:32,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:26:32,718 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 68 [2024-11-09 01:26:32,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:32,719 INFO L225 Difference]: With dead ends: 221 [2024-11-09 01:26:32,719 INFO L226 Difference]: Without dead ends: 206 [2024-11-09 01:26:32,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 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 01:26:32,720 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 436 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:32,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 937 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 01:26:32,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-09 01:26:32,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2024-11-09 01:26:32,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 188 states have (on average 1.4893617021276595) internal successors, (280), 188 states have internal predecessors, (280), 10 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-09 01:26:32,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 302 transitions. [2024-11-09 01:26:32,740 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 302 transitions. Word has length 68 [2024-11-09 01:26:32,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:32,741 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 302 transitions. [2024-11-09 01:26:32,741 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, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 01:26:32,741 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 302 transitions. [2024-11-09 01:26:32,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 01:26:32,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:32,742 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:26:32,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:26:32,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:26:32,944 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:26:32,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:32,944 INFO L85 PathProgramCache]: Analyzing trace with hash 205267919, now seen corresponding path program 1 times [2024-11-09 01:26:32,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:26:32,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071492556] [2024-11-09 01:26:32,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:32,951 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 01:26:32,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:26:32,954 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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 01:26:32,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a83fdc53-bf1b-4a9f-b688-82a0474ce3ae/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