./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:26:36,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:26:36,761 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 06:26:36,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:26:36,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:26:36,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:26:36,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:26:36,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:26:36,796 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:26:36,796 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:26:36,797 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:26:36,797 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:26:36,798 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:26:36,798 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:26:36,799 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:26:36,799 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:26:36,800 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:26:36,800 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:26:36,800 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:26:36,801 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:26:36,801 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:26:36,802 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:26:36,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:26:36,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:26:36,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:26:36,804 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:26:36,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:26:36,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:26:36,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:26:36,806 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 06:26:36,807 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 06:26:36,807 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 06:26:36,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:26:36,808 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:26:36,808 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:26:36,809 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:26:36,809 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:26:36,809 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:26:36,810 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:26:36,810 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:26:36,810 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:26:36,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:26:36,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:26:36,815 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:26:36,815 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:26:36,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:26:36,815 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:26:36,816 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:26:36,816 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:26:36,816 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_29ef260f-c93a-4504-af1d-5d6587b345e8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e [2024-11-09 06:26:37,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:26:37,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:26:37,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:26:37,236 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:26:37,237 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:26:37,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i Unable to find full path for "g++" [2024-11-09 06:26:39,484 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:26:39,883 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:26:39,884 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-11-09 06:26:39,944 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/data/a755efe20/5207de53521b4ad79c4f1f62aef2412e/FLAG6969c0d3a [2024-11-09 06:26:39,983 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/data/a755efe20/5207de53521b4ad79c4f1f62aef2412e [2024-11-09 06:26:39,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:26:39,989 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:26:39,992 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:26:39,993 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:26:40,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:26:40,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:26:39" (1/1) ... [2024-11-09 06:26:40,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87a6930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:40, skipping insertion in model container [2024-11-09 06:26:40,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:26:39" (1/1) ... [2024-11-09 06:26:40,133 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:26:40,754 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 06:26:40,776 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 06:26:40,789 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 06:26:40,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:26:40,836 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-09 06:26:40,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4d909387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:40, skipping insertion in model container [2024-11-09 06:26:40,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:26:40,839 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 06:26:40,841 INFO L158 Benchmark]: Toolchain (without parser) took 850.75ms. Allocated memory is still 153.1MB. Free memory was 123.6MB in the beginning and 99.6MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 06:26:40,842 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 153.1MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:26:40,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 846.75ms. Allocated memory is still 153.1MB. Free memory was 123.4MB in the beginning and 99.6MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 06:26:40,844 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 153.1MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 846.75ms. Allocated memory is still 153.1MB. Free memory was 123.4MB in the beginning and 99.6MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3902]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) 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_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:26:43,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:26:43,646 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2024-11-09 06:26:43,653 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:26:43,654 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:26:43,701 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:26:43,705 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:26:43,706 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:26:43,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:26:43,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:26:43,708 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:26:43,708 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:26:43,709 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:26:43,711 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:26:43,714 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:26:43,715 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:26:43,715 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:26:43,716 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:26:43,716 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:26:43,721 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:26:43,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:26:43,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:26:43,723 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:26:43,723 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 06:26:43,724 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 06:26:43,724 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 06:26:43,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:26:43,725 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:26:43,726 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:26:43,726 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:26:43,727 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:26:43,728 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:26:43,729 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:26:43,729 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:26:43,730 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:26:43,730 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:26:43,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:26:43,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:26:43,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:26:43,733 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:26:43,733 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:26:43,733 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:26:43,734 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:26:43,734 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:26:43,734 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:26:43,735 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_29ef260f-c93a-4504-af1d-5d6587b345e8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e [2024-11-09 06:26:44,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:26:44,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:26:44,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:26:44,264 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:26:44,265 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:26:44,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i Unable to find full path for "g++" [2024-11-09 06:26:46,676 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:26:47,257 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:26:47,261 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-11-09 06:26:47,313 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/data/58485e2db/3a42c1ad32e848a0a615793ea3e0ffa3/FLAG1322dfbed [2024-11-09 06:26:47,339 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/data/58485e2db/3a42c1ad32e848a0a615793ea3e0ffa3 [2024-11-09 06:26:47,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:26:47,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:26:47,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:26:47,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:26:47,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:26:47,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:26:47" (1/1) ... [2024-11-09 06:26:47,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6e9118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:47, skipping insertion in model container [2024-11-09 06:26:47,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:26:47" (1/1) ... [2024-11-09 06:26:47,530 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:26:48,268 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 06:26:48,301 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 06:26:48,316 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 06:26:48,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:26:48,375 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 06:26:48,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:26:48,487 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 06:26:48,500 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 06:26:48,504 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 06:26:48,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:26:48,522 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:26:48,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:26:48,690 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:26:48,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:48 WrapperNode [2024-11-09 06:26:48,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:26:48,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:26:48,694 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:26:48,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:26:48,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:48" (1/1) ... [2024-11-09 06:26:48,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:48" (1/1) ... [2024-11-09 06:26:48,807 INFO L138 Inliner]: procedures = 249, calls = 40, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 142 [2024-11-09 06:26:48,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:26:48,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:26:48,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:26:48,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:26:48,824 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:48" (1/1) ... [2024-11-09 06:26:48,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:48" (1/1) ... [2024-11-09 06:26:48,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:48" (1/1) ... [2024-11-09 06:26:48,838 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:48" (1/1) ... [2024-11-09 06:26:48,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:48" (1/1) ... [2024-11-09 06:26:48,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:48" (1/1) ... [2024-11-09 06:26:48,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:48" (1/1) ... [2024-11-09 06:26:48,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:48" (1/1) ... [2024-11-09 06:26:48,904 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:26:48,905 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:26:48,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:26:48,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:26:48,910 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:48" (1/1) ... [2024-11-09 06:26:48,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:26:48,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:26:48,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:26:48,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:26:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 06:26:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-09 06:26:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-09 06:26:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:26:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:26:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 06:26:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:26:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:26:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:26:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:26:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:26:49,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:26:49,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:26:49,028 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:26:49,446 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:26:49,449 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:26:50,288 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:26:50,290 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:26:50,559 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:26:50,560 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:26:50,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:26:50 BoogieIcfgContainer [2024-11-09 06:26:50,562 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:26:50,567 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:26:50,567 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:26:50,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:26:50,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:26:47" (1/3) ... [2024-11-09 06:26:50,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109c99f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:26:50, skipping insertion in model container [2024-11-09 06:26:50,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:48" (2/3) ... [2024-11-09 06:26:50,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109c99f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:26:50, skipping insertion in model container [2024-11-09 06:26:50,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:26:50" (3/3) ... [2024-11-09 06:26:50,579 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2024-11-09 06:26:50,604 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:26:50,604 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-11-09 06:26:50,605 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:26:50,754 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 06:26:50,808 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 124 places, 132 transitions, 278 flow [2024-11-09 06:26:51,320 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7595 states, 6915 states have (on average 3.2144613159797544) internal successors, (22228), 7594 states have internal predecessors, (22228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:26:51,367 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:26:51,377 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=None, 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;@56a4b57b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:26:51,377 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-09 06:26:51,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 7595 states, 6915 states have (on average 3.2144613159797544) internal successors, (22228), 7594 states have internal predecessors, (22228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:26:51,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 06:26:51,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:26:51,448 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 06:26:51,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:26:51,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:26:51,456 INFO L85 PathProgramCache]: Analyzing trace with hash 492833, now seen corresponding path program 1 times [2024-11-09 06:26:51,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:26:51,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40242450] [2024-11-09 06:26:51,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:26:51,479 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 06:26:51,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:26:51,484 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:51,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:26:51,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:26:51,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:26:51,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:26:51,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:26:51,811 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:26:51,812 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:26:51,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40242450] [2024-11-09 06:26:51,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40242450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:26:51,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:26:51,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:26:51,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406803634] [2024-11-09 06:26:51,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:26:51,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:26:51,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:26:51,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:26:51,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:26:51,895 INFO L87 Difference]: Start difference. First operand has 7595 states, 6915 states have (on average 3.2144613159797544) internal successors, (22228), 7594 states have internal predecessors, (22228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:26:52,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:26:52,689 INFO L93 Difference]: Finished difference Result 14718 states and 43142 transitions. [2024-11-09 06:26:52,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:26:52,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 06:26:52,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:26:52,882 INFO L225 Difference]: With dead ends: 14718 [2024-11-09 06:26:52,882 INFO L226 Difference]: Without dead ends: 7125 [2024-11-09 06:26:52,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:26:52,915 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 52 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:26:52,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 79 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:26:52,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7125 states. [2024-11-09 06:26:53,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7125 to 7125. [2024-11-09 06:26:53,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7125 states, 6451 states have (on average 3.09843435126337) internal successors, (19988), 7124 states have internal predecessors, (19988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:26:53,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7125 states to 7125 states and 19988 transitions. [2024-11-09 06:26:53,475 INFO L78 Accepts]: Start accepts. Automaton has 7125 states and 19988 transitions. Word has length 3 [2024-11-09 06:26:53,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:26:53,476 INFO L471 AbstractCegarLoop]: Abstraction has 7125 states and 19988 transitions. [2024-11-09 06:26:53,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:26:53,526 INFO L276 IsEmpty]: Start isEmpty. Operand 7125 states and 19988 transitions. [2024-11-09 06:26:53,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 06:26:53,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:26:53,527 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 06:26:53,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:53,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:53,728 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:26:53,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:26:53,729 INFO L85 PathProgramCache]: Analyzing trace with hash 492834, now seen corresponding path program 1 times [2024-11-09 06:26:53,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:26:53,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [231144386] [2024-11-09 06:26:53,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:26:53,731 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 06:26:53,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:26:53,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:53,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:26:53,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:26:53,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:26:53,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:26:53,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:26:53,945 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:26:53,946 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:26:53,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [231144386] [2024-11-09 06:26:53,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [231144386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:26:53,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:26:53,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:26:53,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235750577] [2024-11-09 06:26:53,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:26:53,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:26:53,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:26:53,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:26:53,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:26:53,954 INFO L87 Difference]: Start difference. First operand 7125 states and 19988 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:26:54,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:26:54,602 INFO L93 Difference]: Finished difference Result 7125 states and 19988 transitions. [2024-11-09 06:26:54,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:26:54,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 06:26:54,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:26:54,685 INFO L225 Difference]: With dead ends: 7125 [2024-11-09 06:26:54,685 INFO L226 Difference]: Without dead ends: 7121 [2024-11-09 06:26:54,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:26:54,690 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 48 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:26:54,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 80 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:26:54,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7121 states. [2024-11-09 06:26:55,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7121 to 7121. [2024-11-09 06:26:55,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7121 states, 6451 states have (on average 3.097814292357774) internal successors, (19984), 7120 states have internal predecessors, (19984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:26:55,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7121 states to 7121 states and 19984 transitions. [2024-11-09 06:26:55,215 INFO L78 Accepts]: Start accepts. Automaton has 7121 states and 19984 transitions. Word has length 3 [2024-11-09 06:26:55,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:26:55,216 INFO L471 AbstractCegarLoop]: Abstraction has 7121 states and 19984 transitions. [2024-11-09 06:26:55,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:26:55,217 INFO L276 IsEmpty]: Start isEmpty. Operand 7121 states and 19984 transitions. [2024-11-09 06:26:55,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 06:26:55,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:26:55,218 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 06:26:55,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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)] Ended with exit code 0 [2024-11-09 06:26:55,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:55,423 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:26:55,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:26:55,424 INFO L85 PathProgramCache]: Analyzing trace with hash 15275921, now seen corresponding path program 1 times [2024-11-09 06:26:55,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:26:55,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192170479] [2024-11-09 06:26:55,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:26:55,425 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 06:26:55,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:26:55,428 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:55,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:26:55,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:26:55,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:26:55,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:26:55,625 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:26:55,626 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:26:55,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192170479] [2024-11-09 06:26:55,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [192170479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:26:55,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:26:55,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:26:55,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725690201] [2024-11-09 06:26:55,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:26:55,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:26:55,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:26:55,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:26:55,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:26:55,629 INFO L87 Difference]: Start difference. First operand 7121 states and 19984 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:26:55,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:26:55,900 INFO L93 Difference]: Finished difference Result 7124 states and 19986 transitions. [2024-11-09 06:26:55,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:26:55,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 06:26:55,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:26:55,966 INFO L225 Difference]: With dead ends: 7124 [2024-11-09 06:26:55,966 INFO L226 Difference]: Without dead ends: 7121 [2024-11-09 06:26:55,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:26:55,977 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 101 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:26:55,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 77 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:26:55,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7121 states. [2024-11-09 06:26:56,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7121 to 7121. [2024-11-09 06:26:56,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7121 states, 6451 states have (on average 3.097659277631375) internal successors, (19983), 7120 states have internal predecessors, (19983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:26:56,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7121 states to 7121 states and 19983 transitions. [2024-11-09 06:26:56,304 INFO L78 Accepts]: Start accepts. Automaton has 7121 states and 19983 transitions. Word has length 4 [2024-11-09 06:26:56,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:26:56,305 INFO L471 AbstractCegarLoop]: Abstraction has 7121 states and 19983 transitions. [2024-11-09 06:26:56,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:26:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand 7121 states and 19983 transitions. [2024-11-09 06:26:56,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:26:56,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:26:56,306 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:26:56,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 06:26:56,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:56,510 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:26:56,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:26:56,511 INFO L85 PathProgramCache]: Analyzing trace with hash 918000892, now seen corresponding path program 1 times [2024-11-09 06:26:56,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:26:56,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034301279] [2024-11-09 06:26:56,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:26:56,513 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 06:26:56,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:26:56,514 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:56,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:26:56,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:26:56,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:26:56,763 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:26:56,764 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:26:56,765 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:26:56,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-09 06:26:56,849 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:26:56,850 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:26:56,868 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:26:56,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 83 [2024-11-09 06:26:57,155 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:26:57,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 147 treesize of output 57 [2024-11-09 06:26:57,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:26:57,188 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:26:57,188 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:26:57,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034301279] [2024-11-09 06:26:57,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034301279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:26:57,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:26:57,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:26:57,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092945838] [2024-11-09 06:26:57,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:26:57,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:26:57,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:26:57,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:26:57,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:26:57,192 INFO L87 Difference]: Start difference. First operand 7121 states and 19983 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:26:58,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:26:58,097 INFO L93 Difference]: Finished difference Result 7121 states and 19983 transitions. [2024-11-09 06:26:58,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:26:58,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 06:26:58,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:26:58,162 INFO L225 Difference]: With dead ends: 7121 [2024-11-09 06:26:58,163 INFO L226 Difference]: Without dead ends: 7118 [2024-11-09 06:26:58,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:26:58,167 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 51 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:26:58,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 146 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:26:58,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7118 states. [2024-11-09 06:26:58,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7118 to 7118. [2024-11-09 06:26:58,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7118 states, 6449 states have (on average 3.098154752674833) internal successors, (19980), 7117 states have internal predecessors, (19980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:26:58,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7118 states to 7118 states and 19980 transitions. [2024-11-09 06:26:58,525 INFO L78 Accepts]: Start accepts. Automaton has 7118 states and 19980 transitions. Word has length 8 [2024-11-09 06:26:58,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:26:58,525 INFO L471 AbstractCegarLoop]: Abstraction has 7118 states and 19980 transitions. [2024-11-09 06:26:58,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:26:58,526 INFO L276 IsEmpty]: Start isEmpty. Operand 7118 states and 19980 transitions. [2024-11-09 06:26:58,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 06:26:58,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:26:58,527 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:26:58,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-09 06:26:58,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:58,728 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:26:58,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:26:58,729 INFO L85 PathProgramCache]: Analyzing trace with hash -2144599793, now seen corresponding path program 1 times [2024-11-09 06:26:58,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:26:58,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679739581] [2024-11-09 06:26:58,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:26:58,732 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 06:26:58,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:26:58,737 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:58,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:26:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:26:58,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:26:58,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:26:58,996 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:26:58,997 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:26:58,998 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:26:59,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-09 06:26:59,272 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:26:59,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 45 [2024-11-09 06:26:59,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:26:59,300 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:26:59,300 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:26:59,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679739581] [2024-11-09 06:26:59,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679739581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:26:59,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:26:59,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:26:59,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344543281] [2024-11-09 06:26:59,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:26:59,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:26:59,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:26:59,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:26:59,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:26:59,303 INFO L87 Difference]: Start difference. First operand 7118 states and 19980 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:00,177 INFO L93 Difference]: Finished difference Result 7118 states and 19980 transitions. [2024-11-09 06:27:00,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:27:00,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 06:27:00,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:00,224 INFO L225 Difference]: With dead ends: 7118 [2024-11-09 06:27:00,225 INFO L226 Difference]: Without dead ends: 7115 [2024-11-09 06:27:00,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:27:00,230 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 20 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:00,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 144 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:27:00,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7115 states. [2024-11-09 06:27:00,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7115 to 7115. [2024-11-09 06:27:00,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7115 states, 6447 states have (on average 3.0986505351326197) internal successors, (19977), 7114 states have internal predecessors, (19977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:00,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7115 states to 7115 states and 19977 transitions. [2024-11-09 06:27:00,496 INFO L78 Accepts]: Start accepts. Automaton has 7115 states and 19977 transitions. Word has length 11 [2024-11-09 06:27:00,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:00,500 INFO L471 AbstractCegarLoop]: Abstraction has 7115 states and 19977 transitions. [2024-11-09 06:27:00,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:00,500 INFO L276 IsEmpty]: Start isEmpty. Operand 7115 states and 19977 transitions. [2024-11-09 06:27:00,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 06:27:00,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:00,501 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:00,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:00,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:00,702 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:00,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:00,703 INFO L85 PathProgramCache]: Analyzing trace with hash -859869638, now seen corresponding path program 1 times [2024-11-09 06:27:00,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:00,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846043086] [2024-11-09 06:27:00,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:00,704 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 06:27:00,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:00,708 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:00,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:00,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:27:00,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:00,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:27:00,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:00,972 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:00,973 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:00,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846043086] [2024-11-09 06:27:00,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [846043086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:00,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:00,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:27:00,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530243256] [2024-11-09 06:27:00,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:00,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:27:00,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:00,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:27:00,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:27:00,976 INFO L87 Difference]: Start difference. First operand 7115 states and 19977 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:01,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:01,457 INFO L93 Difference]: Finished difference Result 7115 states and 19977 transitions. [2024-11-09 06:27:01,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:27:01,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-09 06:27:01,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:01,517 INFO L225 Difference]: With dead ends: 7115 [2024-11-09 06:27:01,517 INFO L226 Difference]: Without dead ends: 6210 [2024-11-09 06:27:01,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:27:01,525 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 69 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:01,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 38 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:27:01,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6210 states. [2024-11-09 06:27:01,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6210 to 6210. [2024-11-09 06:27:01,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6210 states, 5743 states have (on average 3.0283823785477972) internal successors, (17392), 6209 states have internal predecessors, (17392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:01,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6210 states to 6210 states and 17392 transitions. [2024-11-09 06:27:01,814 INFO L78 Accepts]: Start accepts. Automaton has 6210 states and 17392 transitions. Word has length 15 [2024-11-09 06:27:01,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:01,814 INFO L471 AbstractCegarLoop]: Abstraction has 6210 states and 17392 transitions. [2024-11-09 06:27:01,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:01,815 INFO L276 IsEmpty]: Start isEmpty. Operand 6210 states and 17392 transitions. [2024-11-09 06:27:01,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 06:27:01,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:01,816 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:01,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:02,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:02,020 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:02,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:02,021 INFO L85 PathProgramCache]: Analyzing trace with hash -859869637, now seen corresponding path program 1 times [2024-11-09 06:27:02,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:02,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1680722816] [2024-11-09 06:27:02,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:02,023 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 06:27:02,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:02,027 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:02,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:02,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:27:02,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:02,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:27:02,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:02,463 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:02,463 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:02,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1680722816] [2024-11-09 06:27:02,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1680722816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:02,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:02,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:27:02,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642157304] [2024-11-09 06:27:02,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:02,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:27:02,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:02,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:27:02,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:27:02,470 INFO L87 Difference]: Start difference. First operand 6210 states and 17392 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:02,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:02,936 INFO L93 Difference]: Finished difference Result 6229 states and 17411 transitions. [2024-11-09 06:27:02,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:27:02,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-09 06:27:02,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:02,972 INFO L225 Difference]: With dead ends: 6229 [2024-11-09 06:27:02,972 INFO L226 Difference]: Without dead ends: 5325 [2024-11-09 06:27:02,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:27:02,979 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 46 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:02,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 60 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:27:02,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5325 states. [2024-11-09 06:27:03,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5325 to 5317. [2024-11-09 06:27:03,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5317 states, 5046 states have (on average 2.9369797859690845) internal successors, (14820), 5316 states have internal predecessors, (14820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:03,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5317 states to 5317 states and 14820 transitions. [2024-11-09 06:27:03,140 INFO L78 Accepts]: Start accepts. Automaton has 5317 states and 14820 transitions. Word has length 15 [2024-11-09 06:27:03,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:03,141 INFO L471 AbstractCegarLoop]: Abstraction has 5317 states and 14820 transitions. [2024-11-09 06:27:03,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:03,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5317 states and 14820 transitions. [2024-11-09 06:27:03,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:27:03,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:03,142 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:03,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:03,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:03,346 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:03,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:03,347 INFO L85 PathProgramCache]: Analyzing trace with hash -795720761, now seen corresponding path program 1 times [2024-11-09 06:27:03,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:03,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336308802] [2024-11-09 06:27:03,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:03,348 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 06:27:03,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:03,350 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:03,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:03,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:27:03,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:03,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:27:03,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:03,608 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:03,609 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:03,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336308802] [2024-11-09 06:27:03,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336308802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:03,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:03,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:27:03,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467942725] [2024-11-09 06:27:03,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:03,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:27:03,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:03,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:27:03,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:27:03,612 INFO L87 Difference]: Start difference. First operand 5317 states and 14820 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:04,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:04,664 INFO L93 Difference]: Finished difference Result 5908 states and 16283 transitions. [2024-11-09 06:27:04,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:27:04,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-09 06:27:04,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:04,698 INFO L225 Difference]: With dead ends: 5908 [2024-11-09 06:27:04,698 INFO L226 Difference]: Without dead ends: 4867 [2024-11-09 06:27:04,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:27:04,704 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 197 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:04,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 170 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:27:04,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4867 states. [2024-11-09 06:27:04,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4867 to 4576. [2024-11-09 06:27:04,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4576 states, 4368 states have (on average 2.916437728937729) internal successors, (12739), 4575 states have internal predecessors, (12739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:04,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 12739 transitions. [2024-11-09 06:27:04,866 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 12739 transitions. Word has length 16 [2024-11-09 06:27:04,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:04,867 INFO L471 AbstractCegarLoop]: Abstraction has 4576 states and 12739 transitions. [2024-11-09 06:27:04,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:04,868 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 12739 transitions. [2024-11-09 06:27:04,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:27:04,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:04,869 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:04,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:05,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:05,074 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:05,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:05,075 INFO L85 PathProgramCache]: Analyzing trace with hash -795720760, now seen corresponding path program 1 times [2024-11-09 06:27:05,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:05,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508761269] [2024-11-09 06:27:05,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:05,077 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 06:27:05,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:05,081 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:05,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:05,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 06:27:05,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:05,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:27:05,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:05,490 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:05,490 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:05,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508761269] [2024-11-09 06:27:05,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508761269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:05,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:05,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:27:05,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134234911] [2024-11-09 06:27:05,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:05,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:27:05,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:05,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:27:05,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:27:05,494 INFO L87 Difference]: Start difference. First operand 4576 states and 12739 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:06,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:06,686 INFO L93 Difference]: Finished difference Result 4621 states and 12781 transitions. [2024-11-09 06:27:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:27:06,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-09 06:27:06,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:06,718 INFO L225 Difference]: With dead ends: 4621 [2024-11-09 06:27:06,719 INFO L226 Difference]: Without dead ends: 3574 [2024-11-09 06:27:06,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:27:06,724 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 161 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:06,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 164 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 06:27:06,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2024-11-09 06:27:06,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3574. [2024-11-09 06:27:06,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3574 states, 3450 states have (on average 2.8063768115942027) internal successors, (9682), 3573 states have internal predecessors, (9682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:06,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 9682 transitions. [2024-11-09 06:27:06,856 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 9682 transitions. Word has length 16 [2024-11-09 06:27:06,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:06,857 INFO L471 AbstractCegarLoop]: Abstraction has 3574 states and 9682 transitions. [2024-11-09 06:27:06,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:06,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 9682 transitions. [2024-11-09 06:27:06,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 06:27:06,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:06,859 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:06,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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)] Ended with exit code 0 [2024-11-09 06:27:07,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:07,060 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:07,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:07,065 INFO L85 PathProgramCache]: Analyzing trace with hash 745709068, now seen corresponding path program 1 times [2024-11-09 06:27:07,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:07,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785114081] [2024-11-09 06:27:07,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:07,066 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 06:27:07,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:07,070 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:07,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:07,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:27:07,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:07,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:27:07,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:07,407 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:07,407 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:07,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785114081] [2024-11-09 06:27:07,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785114081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:07,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:07,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:27:07,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758303224] [2024-11-09 06:27:07,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:07,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:27:07,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:07,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:27:07,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:27:07,410 INFO L87 Difference]: Start difference. First operand 3574 states and 9682 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:08,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:08,561 INFO L93 Difference]: Finished difference Result 4119 states and 11019 transitions. [2024-11-09 06:27:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:27:08,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-09 06:27:08,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:08,592 INFO L225 Difference]: With dead ends: 4119 [2024-11-09 06:27:08,593 INFO L226 Difference]: Without dead ends: 3417 [2024-11-09 06:27:08,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:27:08,598 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 164 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:08,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 172 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 06:27:08,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3417 states. [2024-11-09 06:27:08,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3417 to 3152. [2024-11-09 06:27:08,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3152 states, 3052 states have (on average 2.8063564875491482) internal successors, (8565), 3151 states have internal predecessors, (8565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:08,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3152 states to 3152 states and 8565 transitions. [2024-11-09 06:27:08,717 INFO L78 Accepts]: Start accepts. Automaton has 3152 states and 8565 transitions. Word has length 18 [2024-11-09 06:27:08,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:08,719 INFO L471 AbstractCegarLoop]: Abstraction has 3152 states and 8565 transitions. [2024-11-09 06:27:08,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:08,719 INFO L276 IsEmpty]: Start isEmpty. Operand 3152 states and 8565 transitions. [2024-11-09 06:27:08,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 06:27:08,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:08,727 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:08,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:08,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:08,928 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:08,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:08,930 INFO L85 PathProgramCache]: Analyzing trace with hash 745709069, now seen corresponding path program 1 times [2024-11-09 06:27:08,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:08,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654044985] [2024-11-09 06:27:08,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:08,931 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 06:27:08,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:08,933 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:08,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:09,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 06:27:09,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:09,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:27:09,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:09,326 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:09,326 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:09,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654044985] [2024-11-09 06:27:09,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654044985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:09,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:09,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:27:09,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665722671] [2024-11-09 06:27:09,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:09,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:27:09,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:09,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:27:09,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:27:09,329 INFO L87 Difference]: Start difference. First operand 3152 states and 8565 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:10,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:10,492 INFO L93 Difference]: Finished difference Result 3200 states and 8610 transitions. [2024-11-09 06:27:10,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:27:10,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-09 06:27:10,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:10,513 INFO L225 Difference]: With dead ends: 3200 [2024-11-09 06:27:10,513 INFO L226 Difference]: Without dead ends: 2488 [2024-11-09 06:27:10,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:27:10,517 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 131 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:10,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 166 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:27:10,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2024-11-09 06:27:10,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2488. [2024-11-09 06:27:10,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2418 states have (on average 2.7018196856906536) internal successors, (6533), 2487 states have internal predecessors, (6533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 6533 transitions. [2024-11-09 06:27:10,590 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 6533 transitions. Word has length 18 [2024-11-09 06:27:10,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:10,591 INFO L471 AbstractCegarLoop]: Abstraction has 2488 states and 6533 transitions. [2024-11-09 06:27:10,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 6533 transitions. [2024-11-09 06:27:10,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 06:27:10,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:10,592 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:10,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:27:10,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:10,793 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:10,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:10,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2035896848, now seen corresponding path program 1 times [2024-11-09 06:27:10,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:10,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811925579] [2024-11-09 06:27:10,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:10,794 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 06:27:10,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:10,795 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:10,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-09 06:27:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:11,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 06:27:11,073 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:11,091 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:27:11,092 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:27:11,093 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:27:11,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-09 06:27:11,170 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:27:11,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 63 [2024-11-09 06:27:11,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:27:11,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 131 treesize of output 53 [2024-11-09 06:27:11,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:11,311 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:11,312 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:11,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811925579] [2024-11-09 06:27:11,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811925579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:11,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:11,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:27:11,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83116248] [2024-11-09 06:27:11,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:11,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:27:11,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:11,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:27:11,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:27:11,315 INFO L87 Difference]: Start difference. First operand 2488 states and 6533 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:14,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:14,331 INFO L93 Difference]: Finished difference Result 3463 states and 9253 transitions. [2024-11-09 06:27:14,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:27:14,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-09 06:27:14,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:14,356 INFO L225 Difference]: With dead ends: 3463 [2024-11-09 06:27:14,357 INFO L226 Difference]: Without dead ends: 3217 [2024-11-09 06:27:14,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:27:14,361 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 69 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:14,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 169 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 06:27:14,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3217 states. [2024-11-09 06:27:14,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3217 to 2632. [2024-11-09 06:27:14,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2632 states, 2563 states have (on average 2.6984003121342175) internal successors, (6916), 2631 states have internal predecessors, (6916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:14,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2632 states to 2632 states and 6916 transitions. [2024-11-09 06:27:14,493 INFO L78 Accepts]: Start accepts. Automaton has 2632 states and 6916 transitions. Word has length 20 [2024-11-09 06:27:14,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:14,494 INFO L471 AbstractCegarLoop]: Abstraction has 2632 states and 6916 transitions. [2024-11-09 06:27:14,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:14,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2632 states and 6916 transitions. [2024-11-09 06:27:14,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 06:27:14,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:14,496 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:14,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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)] Ended with exit code 0 [2024-11-09 06:27:14,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:14,697 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:14,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:14,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1616471748, now seen corresponding path program 1 times [2024-11-09 06:27:14,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:14,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997462342] [2024-11-09 06:27:14,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:14,700 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 06:27:14,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:14,704 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:14,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (14)] Waiting until timeout for monitored process [2024-11-09 06:27:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:14,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 06:27:14,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:14,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:27:15,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:27:15,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:27:15,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-09 06:27:15,356 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 06:27:15,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 06:27:15,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:15,433 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:15,433 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:15,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997462342] [2024-11-09 06:27:15,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997462342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:15,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:15,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:27:15,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246850049] [2024-11-09 06:27:15,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:15,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:27:15,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:15,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:27:15,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:27:15,437 INFO L87 Difference]: Start difference. First operand 2632 states and 6916 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:16,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:16,853 INFO L93 Difference]: Finished difference Result 2857 states and 7293 transitions. [2024-11-09 06:27:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:27:16,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-09 06:27:16,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:16,878 INFO L225 Difference]: With dead ends: 2857 [2024-11-09 06:27:16,879 INFO L226 Difference]: Without dead ends: 2821 [2024-11-09 06:27:16,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:27:16,882 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 375 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:16,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 126 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:27:16,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2024-11-09 06:27:16,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2692. [2024-11-09 06:27:16,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2623 states have (on average 2.6805184902783075) internal successors, (7031), 2691 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:16,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 7031 transitions. [2024-11-09 06:27:17,002 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 7031 transitions. Word has length 21 [2024-11-09 06:27:17,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:17,003 INFO L471 AbstractCegarLoop]: Abstraction has 2692 states and 7031 transitions. [2024-11-09 06:27:17,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:17,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 7031 transitions. [2024-11-09 06:27:17,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 06:27:17,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:17,005 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:17,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (14)] Forceful destruction successful, exit code 0 [2024-11-09 06:27:17,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:17,206 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:17,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:17,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1616040772, now seen corresponding path program 1 times [2024-11-09 06:27:17,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:17,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503175686] [2024-11-09 06:27:17,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:17,209 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 06:27:17,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:17,213 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:17,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (15)] Waiting until timeout for monitored process [2024-11-09 06:27:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:17,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 06:27:17,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:17,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:27:17,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:27:17,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:27:17,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-09 06:27:17,883 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 06:27:17,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 06:27:17,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:17,949 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:17,950 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:17,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503175686] [2024-11-09 06:27:17,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503175686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:17,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:17,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:27:17,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808962894] [2024-11-09 06:27:17,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:17,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:27:17,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:17,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:27:17,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:27:17,952 INFO L87 Difference]: Start difference. First operand 2692 states and 7031 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:19,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:19,406 INFO L93 Difference]: Finished difference Result 2968 states and 7505 transitions. [2024-11-09 06:27:19,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:27:19,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-09 06:27:19,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:19,420 INFO L225 Difference]: With dead ends: 2968 [2024-11-09 06:27:19,420 INFO L226 Difference]: Without dead ends: 2905 [2024-11-09 06:27:19,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:27:19,422 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 287 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:19,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 142 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:27:19,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2024-11-09 06:27:19,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 2797. [2024-11-09 06:27:19,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2728 states have (on average 2.6524926686217007) internal successors, (7236), 2796 states have internal predecessors, (7236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:19,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 7236 transitions. [2024-11-09 06:27:19,511 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 7236 transitions. Word has length 21 [2024-11-09 06:27:19,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:19,511 INFO L471 AbstractCegarLoop]: Abstraction has 2797 states and 7236 transitions. [2024-11-09 06:27:19,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:19,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 7236 transitions. [2024-11-09 06:27:19,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 06:27:19,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:19,513 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:19,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (15)] Ended with exit code 0 [2024-11-09 06:27:19,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:19,719 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:19,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:19,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1637921268, now seen corresponding path program 2 times [2024-11-09 06:27:19,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:19,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566020367] [2024-11-09 06:27:19,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:27:19,720 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 06:27:19,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:19,724 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:19,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (16)] Waiting until timeout for monitored process [2024-11-09 06:27:19,999 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:27:20,000 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:27:20,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 06:27:20,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:20,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:27:20,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:27:20,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:27:20,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-09 06:27:20,320 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 06:27:20,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 06:27:20,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:20,352 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:20,352 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:20,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566020367] [2024-11-09 06:27:20,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566020367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:20,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:20,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:27:20,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939145129] [2024-11-09 06:27:20,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:20,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:27:20,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:20,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:27:20,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:27:20,354 INFO L87 Difference]: Start difference. First operand 2797 states and 7236 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:21,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:21,761 INFO L93 Difference]: Finished difference Result 3437 states and 8800 transitions. [2024-11-09 06:27:21,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:27:21,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-09 06:27:21,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:21,774 INFO L225 Difference]: With dead ends: 3437 [2024-11-09 06:27:21,775 INFO L226 Difference]: Without dead ends: 3386 [2024-11-09 06:27:21,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:27:21,777 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 266 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:21,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 129 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:27:21,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2024-11-09 06:27:21,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 2661. [2024-11-09 06:27:21,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2604 states have (on average 2.6774193548387095) internal successors, (6972), 2660 states have internal predecessors, (6972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:21,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 6972 transitions. [2024-11-09 06:27:21,868 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 6972 transitions. Word has length 21 [2024-11-09 06:27:21,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:21,869 INFO L471 AbstractCegarLoop]: Abstraction has 2661 states and 6972 transitions. [2024-11-09 06:27:21,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:21,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 6972 transitions. [2024-11-09 06:27:21,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 06:27:21,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:21,871 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:21,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (16)] Ended with exit code 0 [2024-11-09 06:27:22,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:22,075 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:22,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:22,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1624978072, now seen corresponding path program 2 times [2024-11-09 06:27:22,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:22,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643494001] [2024-11-09 06:27:22,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:27:22,077 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 06:27:22,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:22,078 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:22,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (17)] Waiting until timeout for monitored process [2024-11-09 06:27:22,308 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:27:22,308 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:27:22,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 06:27:22,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:22,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:27:22,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:27:22,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:27:22,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-09 06:27:22,601 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 06:27:22,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 06:27:22,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:22,632 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:22,633 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:22,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643494001] [2024-11-09 06:27:22,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643494001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:22,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:22,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:27:22,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952103349] [2024-11-09 06:27:22,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:22,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:27:22,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:22,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:27:22,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:27:22,635 INFO L87 Difference]: Start difference. First operand 2661 states and 6972 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:24,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:24,011 INFO L93 Difference]: Finished difference Result 3301 states and 8536 transitions. [2024-11-09 06:27:24,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:27:24,012 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-09 06:27:24,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:24,025 INFO L225 Difference]: With dead ends: 3301 [2024-11-09 06:27:24,025 INFO L226 Difference]: Without dead ends: 3262 [2024-11-09 06:27:24,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:27:24,028 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 248 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:24,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 135 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:27:24,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2024-11-09 06:27:24,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 2557. [2024-11-09 06:27:24,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2509 states have (on average 2.6990833001195695) internal successors, (6772), 2556 states have internal predecessors, (6772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:24,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 6772 transitions. [2024-11-09 06:27:24,115 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 6772 transitions. Word has length 21 [2024-11-09 06:27:24,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:24,116 INFO L471 AbstractCegarLoop]: Abstraction has 2557 states and 6772 transitions. [2024-11-09 06:27:24,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:24,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 6772 transitions. [2024-11-09 06:27:24,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 06:27:24,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:24,119 INFO L215 NwaCegarLoop]: trace histogram [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 06:27:24,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (17)] Ended with exit code 0 [2024-11-09 06:27:24,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:24,321 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:24,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:24,322 INFO L85 PathProgramCache]: Analyzing trace with hash 2073608629, now seen corresponding path program 1 times [2024-11-09 06:27:24,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:24,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774649369] [2024-11-09 06:27:24,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:24,325 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 06:27:24,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:24,328 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:24,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (18)] Waiting until timeout for monitored process [2024-11-09 06:27:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:24,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:27:24,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:24,629 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:27:24,630 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:27:24,631 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:27:24,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2024-11-09 06:27:24,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:27:24,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 49 [2024-11-09 06:27:24,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:24,807 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:24,808 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:24,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774649369] [2024-11-09 06:27:24,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774649369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:24,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:24,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:27:24,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235996308] [2024-11-09 06:27:24,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:24,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:27:24,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:24,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:27:24,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:27:24,810 INFO L87 Difference]: Start difference. First operand 2557 states and 6772 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:26,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:26,194 INFO L93 Difference]: Finished difference Result 3532 states and 9492 transitions. [2024-11-09 06:27:26,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:27:26,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-09 06:27:26,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:26,208 INFO L225 Difference]: With dead ends: 3532 [2024-11-09 06:27:26,209 INFO L226 Difference]: Without dead ends: 3286 [2024-11-09 06:27:26,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:27:26,211 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 53 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:26,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 117 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:27:26,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2024-11-09 06:27:26,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 2896. [2024-11-09 06:27:26,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2896 states, 2849 states have (on average 2.720954720954721) internal successors, (7752), 2895 states have internal predecessors, (7752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:26,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2896 states to 2896 states and 7752 transitions. [2024-11-09 06:27:26,306 INFO L78 Accepts]: Start accepts. Automaton has 2896 states and 7752 transitions. Word has length 23 [2024-11-09 06:27:26,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:26,306 INFO L471 AbstractCegarLoop]: Abstraction has 2896 states and 7752 transitions. [2024-11-09 06:27:26,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:26,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2896 states and 7752 transitions. [2024-11-09 06:27:26,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 06:27:26,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:26,309 INFO L215 NwaCegarLoop]: trace histogram [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 06:27:26,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (18)] Ended with exit code 0 [2024-11-09 06:27:26,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:26,510 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:26,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:26,510 INFO L85 PathProgramCache]: Analyzing trace with hash -142753304, now seen corresponding path program 1 times [2024-11-09 06:27:26,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:26,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140695413] [2024-11-09 06:27:26,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:26,511 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 06:27:26,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:26,515 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:26,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (19)] Waiting until timeout for monitored process [2024-11-09 06:27:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:26,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:27:26,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:26,999 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_79| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_79|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_79| (_ bv0 1)) |c_#valid|))) is different from true [2024-11-09 06:27:27,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:27,011 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:27,011 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:27,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140695413] [2024-11-09 06:27:27,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140695413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:27,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:27,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:27:27,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885341901] [2024-11-09 06:27:27,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:27,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:27:27,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:27,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:27:27,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-11-09 06:27:27,014 INFO L87 Difference]: Start difference. First operand 2896 states and 7752 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:27,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:27,836 INFO L93 Difference]: Finished difference Result 3045 states and 8299 transitions. [2024-11-09 06:27:27,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:27:27,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-09 06:27:27,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:27,855 INFO L225 Difference]: With dead ends: 3045 [2024-11-09 06:27:27,855 INFO L226 Difference]: Without dead ends: 2686 [2024-11-09 06:27:27,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2024-11-09 06:27:27,859 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 75 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 150 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:27,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 73 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 150 Unchecked, 0.7s Time] [2024-11-09 06:27:27,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2024-11-09 06:27:27,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2560. [2024-11-09 06:27:27,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 2529 states have (on average 2.679715302491103) internal successors, (6777), 2559 states have internal predecessors, (6777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:27,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 6777 transitions. [2024-11-09 06:27:27,939 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 6777 transitions. Word has length 24 [2024-11-09 06:27:27,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:27,940 INFO L471 AbstractCegarLoop]: Abstraction has 2560 states and 6777 transitions. [2024-11-09 06:27:27,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:27,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 6777 transitions. [2024-11-09 06:27:27,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 06:27:27,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:27,943 INFO L215 NwaCegarLoop]: trace histogram [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, 1] [2024-11-09 06:27:27,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (19)] Ended with exit code 0 [2024-11-09 06:27:28,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:28,144 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:28,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:28,145 INFO L85 PathProgramCache]: Analyzing trace with hash -953630417, now seen corresponding path program 1 times [2024-11-09 06:27:28,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:28,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259889962] [2024-11-09 06:27:28,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:28,146 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 06:27:28,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:28,147 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:28,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (20)] Waiting until timeout for monitored process [2024-11-09 06:27:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:28,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:27:28,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:28,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:27:28,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:28,441 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:28,445 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:28,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259889962] [2024-11-09 06:27:28,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259889962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:28,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:28,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:27:28,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866995877] [2024-11-09 06:27:28,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:28,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:27:28,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:28,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:27:28,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:27:28,447 INFO L87 Difference]: Start difference. First operand 2560 states and 6777 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:28,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:28,805 INFO L93 Difference]: Finished difference Result 2560 states and 6777 transitions. [2024-11-09 06:27:28,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:27:28,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-09 06:27:28,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:28,817 INFO L225 Difference]: With dead ends: 2560 [2024-11-09 06:27:28,817 INFO L226 Difference]: Without dead ends: 2550 [2024-11-09 06:27:28,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:27:28,819 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 12 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:28,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 66 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:27:28,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2024-11-09 06:27:28,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2550. [2024-11-09 06:27:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2521 states have (on average 2.6810789369297896) internal successors, (6759), 2549 states have internal predecessors, (6759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:28,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 6759 transitions. [2024-11-09 06:27:28,894 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 6759 transitions. Word has length 27 [2024-11-09 06:27:28,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:28,895 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 6759 transitions. [2024-11-09 06:27:28,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:28,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 6759 transitions. [2024-11-09 06:27:28,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 06:27:28,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:28,898 INFO L215 NwaCegarLoop]: trace histogram [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, 1] [2024-11-09 06:27:28,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (20)] Ended with exit code 0 [2024-11-09 06:27:29,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:29,099 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:29,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:29,100 INFO L85 PathProgramCache]: Analyzing trace with hash -953630416, now seen corresponding path program 1 times [2024-11-09 06:27:29,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:29,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481792784] [2024-11-09 06:27:29,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:29,102 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 06:27:29,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:29,105 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:29,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (21)] Waiting until timeout for monitored process [2024-11-09 06:27:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:29,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:27:29,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:29,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:27:29,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:29,432 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:29,432 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:29,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481792784] [2024-11-09 06:27:29,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481792784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:29,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:29,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:27:29,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802618068] [2024-11-09 06:27:29,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:29,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:27:29,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:29,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:27:29,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:27:29,434 INFO L87 Difference]: Start difference. First operand 2550 states and 6759 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:29,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:29,788 INFO L93 Difference]: Finished difference Result 2550 states and 6759 transitions. [2024-11-09 06:27:29,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:27:29,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-09 06:27:29,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:29,824 INFO L225 Difference]: With dead ends: 2550 [2024-11-09 06:27:29,824 INFO L226 Difference]: Without dead ends: 2540 [2024-11-09 06:27:29,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:27:29,825 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 10 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:29,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 68 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:27:29,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2540 states. [2024-11-09 06:27:29,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2540 to 2540. [2024-11-09 06:27:29,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2540 states, 2513 states have (on average 2.682451253481894) internal successors, (6741), 2539 states have internal predecessors, (6741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:29,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 6741 transitions. [2024-11-09 06:27:29,895 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 6741 transitions. Word has length 27 [2024-11-09 06:27:29,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:29,896 INFO L471 AbstractCegarLoop]: Abstraction has 2540 states and 6741 transitions. [2024-11-09 06:27:29,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:29,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 6741 transitions. [2024-11-09 06:27:29,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 06:27:29,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:29,902 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-11-09 06:27:29,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (21)] Forceful destruction successful, exit code 0 [2024-11-09 06:27:30,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:30,103 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:30,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:30,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1109796039, now seen corresponding path program 1 times [2024-11-09 06:27:30,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:30,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329517257] [2024-11-09 06:27:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:30,105 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 06:27:30,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:30,108 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:30,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (22)] Waiting until timeout for monitored process [2024-11-09 06:27:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:30,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:27:30,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:30,374 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:30,374 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:30,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329517257] [2024-11-09 06:27:30,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329517257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:30,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:30,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:27:30,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681733512] [2024-11-09 06:27:30,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:30,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:27:30,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:30,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:27:30,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:27:30,377 INFO L87 Difference]: Start difference. First operand 2540 states and 6741 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:30,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:30,680 INFO L93 Difference]: Finished difference Result 2540 states and 6741 transitions. [2024-11-09 06:27:30,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:27:30,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-09 06:27:30,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:30,688 INFO L225 Difference]: With dead ends: 2540 [2024-11-09 06:27:30,688 INFO L226 Difference]: Without dead ends: 404 [2024-11-09 06:27:30,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:27:30,693 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 100 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:30,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 69 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:27:30,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-09 06:27:30,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2024-11-09 06:27:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 394 states have (on average 2.3629441624365484) internal successors, (931), 403 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:30,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 931 transitions. [2024-11-09 06:27:30,714 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 931 transitions. Word has length 28 [2024-11-09 06:27:30,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:30,715 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 931 transitions. [2024-11-09 06:27:30,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:30,715 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 931 transitions. [2024-11-09 06:27:30,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 06:27:30,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:30,717 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:30,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (22)] Forceful destruction successful, exit code 0 [2024-11-09 06:27:30,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:30,918 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:30,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:30,918 INFO L85 PathProgramCache]: Analyzing trace with hash -475065980, now seen corresponding path program 1 times [2024-11-09 06:27:30,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:30,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80095431] [2024-11-09 06:27:30,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:30,919 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 06:27:30,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:30,921 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:30,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (23)] Waiting until timeout for monitored process [2024-11-09 06:27:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:31,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:27:31,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:31,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-09 06:27:31,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:31,582 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:31,583 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:31,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80095431] [2024-11-09 06:27:31,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80095431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:31,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:31,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:27:31,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843157296] [2024-11-09 06:27:31,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:31,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:27:31,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:31,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:27:31,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:27:31,585 INFO L87 Difference]: Start difference. First operand 404 states and 931 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:32,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:32,763 INFO L93 Difference]: Finished difference Result 1044 states and 2407 transitions. [2024-11-09 06:27:32,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:27:32,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-09 06:27:32,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:32,770 INFO L225 Difference]: With dead ends: 1044 [2024-11-09 06:27:32,770 INFO L226 Difference]: Without dead ends: 802 [2024-11-09 06:27:32,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:27:32,772 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 241 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:32,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 202 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:27:32,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-09 06:27:32,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 448. [2024-11-09 06:27:32,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 438 states have (on average 2.356164383561644) internal successors, (1032), 447 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:32,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 1032 transitions. [2024-11-09 06:27:32,789 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 1032 transitions. Word has length 38 [2024-11-09 06:27:32,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:32,790 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 1032 transitions. [2024-11-09 06:27:32,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:32,790 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 1032 transitions. [2024-11-09 06:27:32,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 06:27:32,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:32,792 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:32,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (23)] Forceful destruction successful, exit code 0 [2024-11-09 06:27:32,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:32,992 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:32,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:32,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1091138164, now seen corresponding path program 2 times [2024-11-09 06:27:32,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:32,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9987963] [2024-11-09 06:27:32,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:27:32,994 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 06:27:32,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:32,995 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:32,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (24)] Waiting until timeout for monitored process [2024-11-09 06:27:33,395 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:27:33,395 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:27:33,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 06:27:33,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:33,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:27:33,665 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-09 06:27:33,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-09 06:27:33,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2024-11-09 06:27:34,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:34,015 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:34,016 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:34,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9987963] [2024-11-09 06:27:34,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9987963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:34,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:34,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:27:34,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063766563] [2024-11-09 06:27:34,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:34,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:27:34,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:34,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:27:34,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:27:34,018 INFO L87 Difference]: Start difference. First operand 448 states and 1032 transitions. Second operand has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:35,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:35,199 INFO L93 Difference]: Finished difference Result 544 states and 1200 transitions. [2024-11-09 06:27:35,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:27:35,199 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-09 06:27:35,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:35,206 INFO L225 Difference]: With dead ends: 544 [2024-11-09 06:27:35,206 INFO L226 Difference]: Without dead ends: 543 [2024-11-09 06:27:35,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:27:35,207 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 169 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:35,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 70 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 06:27:35,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-09 06:27:35,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 447. [2024-11-09 06:27:35,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 438 states have (on average 2.353881278538813) internal successors, (1031), 446 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:35,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 1031 transitions. [2024-11-09 06:27:35,223 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 1031 transitions. Word has length 38 [2024-11-09 06:27:35,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:35,224 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 1031 transitions. [2024-11-09 06:27:35,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:35,224 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 1031 transitions. [2024-11-09 06:27:35,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 06:27:35,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:35,226 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:35,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (24)] Ended with exit code 0 [2024-11-09 06:27:35,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:35,427 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:35,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:35,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1091138165, now seen corresponding path program 1 times [2024-11-09 06:27:35,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:35,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158744535] [2024-11-09 06:27:35,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:35,429 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 06:27:35,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:35,430 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:35,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (25)] Waiting until timeout for monitored process [2024-11-09 06:27:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:35,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:27:35,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:36,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:36,120 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:36,120 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:36,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158744535] [2024-11-09 06:27:36,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158744535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:36,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:36,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:27:36,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632286747] [2024-11-09 06:27:36,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:36,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:27:36,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:36,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:27:36,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:27:36,122 INFO L87 Difference]: Start difference. First operand 447 states and 1031 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:37,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:37,036 INFO L93 Difference]: Finished difference Result 515 states and 1141 transitions. [2024-11-09 06:27:37,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:27:37,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-09 06:27:37,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:37,046 INFO L225 Difference]: With dead ends: 515 [2024-11-09 06:27:37,047 INFO L226 Difference]: Without dead ends: 509 [2024-11-09 06:27:37,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:27:37,048 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 224 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:37,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 45 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:27:37,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-09 06:27:37,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 495. [2024-11-09 06:27:37,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 2.2714285714285714) internal successors, (1113), 494 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:37,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 1113 transitions. [2024-11-09 06:27:37,069 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 1113 transitions. Word has length 38 [2024-11-09 06:27:37,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:37,070 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 1113 transitions. [2024-11-09 06:27:37,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:37,070 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 1113 transitions. [2024-11-09 06:27:37,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 06:27:37,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:37,073 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:37,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (25)] Forceful destruction successful, exit code 0 [2024-11-09 06:27:37,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:37,273 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:37,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:37,274 INFO L85 PathProgramCache]: Analyzing trace with hash 130006519, now seen corresponding path program 2 times [2024-11-09 06:27:37,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:37,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999803711] [2024-11-09 06:27:37,275 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:27:37,275 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 06:27:37,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:37,276 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:37,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (26)] Waiting until timeout for monitored process [2024-11-09 06:27:37,570 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:27:37,570 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:27:37,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:27:37,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:38,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:38,001 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:38,002 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:38,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999803711] [2024-11-09 06:27:38,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999803711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:38,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:38,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:27:38,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048774395] [2024-11-09 06:27:38,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:38,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:27:38,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:38,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:27:38,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:27:38,005 INFO L87 Difference]: Start difference. First operand 495 states and 1113 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:38,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:38,887 INFO L93 Difference]: Finished difference Result 574 states and 1235 transitions. [2024-11-09 06:27:38,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:27:38,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-09 06:27:38,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:38,894 INFO L225 Difference]: With dead ends: 574 [2024-11-09 06:27:38,894 INFO L226 Difference]: Without dead ends: 572 [2024-11-09 06:27:38,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:27:38,896 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 208 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:38,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 48 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:27:38,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-09 06:27:38,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 463. [2024-11-09 06:27:38,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 458 states have (on average 2.3056768558951966) internal successors, (1056), 462 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:38,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 1056 transitions. [2024-11-09 06:27:38,917 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 1056 transitions. Word has length 38 [2024-11-09 06:27:38,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:38,918 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 1056 transitions. [2024-11-09 06:27:38,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:38,918 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 1056 transitions. [2024-11-09 06:27:38,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 06:27:38,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:38,920 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:38,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (26)] Forceful destruction successful, exit code 0 [2024-11-09 06:27:39,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:39,121 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:39,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:39,122 INFO L85 PathProgramCache]: Analyzing trace with hash 526042405, now seen corresponding path program 3 times [2024-11-09 06:27:39,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:39,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144048218] [2024-11-09 06:27:39,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:27:39,123 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 06:27:39,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:39,124 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:39,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (27)] Waiting until timeout for monitored process [2024-11-09 06:27:39,548 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-09 06:27:39,548 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:27:39,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:27:39,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:39,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:27:39,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:27:39,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:27:39,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-09 06:27:39,923 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 06:27:39,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 06:27:39,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:39,971 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:39,971 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:39,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144048218] [2024-11-09 06:27:39,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144048218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:39,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:39,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:27:39,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970774483] [2024-11-09 06:27:39,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:39,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:27:39,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:39,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:27:39,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:27:39,973 INFO L87 Difference]: Start difference. First operand 463 states and 1056 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:40,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:40,183 INFO L93 Difference]: Finished difference Result 463 states and 1056 transitions. [2024-11-09 06:27:40,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:27:40,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-09 06:27:40,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:40,192 INFO L225 Difference]: With dead ends: 463 [2024-11-09 06:27:40,192 INFO L226 Difference]: Without dead ends: 461 [2024-11-09 06:27:40,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:27:40,194 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 44 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:40,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 16 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:27:40,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-09 06:27:40,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 441. [2024-11-09 06:27:40,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 438 states have (on average 2.3401826484018264) internal successors, (1025), 440 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:40,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 1025 transitions. [2024-11-09 06:27:40,211 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 1025 transitions. Word has length 38 [2024-11-09 06:27:40,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:40,212 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 1025 transitions. [2024-11-09 06:27:40,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:40,212 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 1025 transitions. [2024-11-09 06:27:40,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 06:27:40,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:40,214 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:27:40,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (27)] Forceful destruction successful, exit code 0 [2024-11-09 06:27:40,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:40,415 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:27:40,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:40,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1785115748, now seen corresponding path program 1 times [2024-11-09 06:27:40,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:40,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413703479] [2024-11-09 06:27:40,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:40,417 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 06:27:40,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:40,418 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:27:40,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (28)] Waiting until timeout for monitored process [2024-11-09 06:27:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:40,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 06:27:40,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:41,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:27:41,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:27:41,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:27:41,247 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:27:41,248 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:27:41,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:27:41,368 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:27:41,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 85 [2024-11-09 06:27:43,718 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:27:43,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 66 [2024-11-09 06:27:43,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:27:44,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 69 [2024-11-09 06:27:44,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:27:44,083 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:44,083 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:44,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413703479] [2024-11-09 06:27:44,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413703479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:44,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:44,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:27:44,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050360833] [2024-11-09 06:27:44,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:44,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:27:44,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:44,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:27:44,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=55, Unknown=1, NotChecked=0, Total=72 [2024-11-09 06:27:44,086 INFO L87 Difference]: Start difference. First operand 441 states and 1025 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:27:47,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:27:49,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:27:53,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:27:55,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:27:57,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:27:59,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:01,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:05,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:07,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:09,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:11,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:15,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:17,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:19,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:21,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:24,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:26,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:28,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:30,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:32,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:37,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:40,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:42,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:44,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:46,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:48,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:50,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:53,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:55,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:57,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:28:59,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:02,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:04,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:06,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:08,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:10,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:12,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:14,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:14,674 INFO L93 Difference]: Finished difference Result 566 states and 1294 transitions. [2024-11-09 06:29:14,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:29:14,675 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-09 06:29:14,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:14,694 INFO L225 Difference]: With dead ends: 566 [2024-11-09 06:29:14,694 INFO L226 Difference]: Without dead ends: 563 [2024-11-09 06:29:14,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=98, Invalid=238, Unknown=6, NotChecked=0, Total=342 [2024-11-09 06:29:14,695 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 217 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 4 mSolverCounterUnsat, 36 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 36 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:14,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 127 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 465 Invalid, 36 Unknown, 0 Unchecked, 79.5s Time] [2024-11-09 06:29:14,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-11-09 06:29:14,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 449. [2024-11-09 06:29:14,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 446 states have (on average 2.3161434977578477) internal successors, (1033), 448 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:14,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 1033 transitions. [2024-11-09 06:29:14,715 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 1033 transitions. Word has length 41 [2024-11-09 06:29:14,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:14,716 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 1033 transitions. [2024-11-09 06:29:14,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:14,716 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 1033 transitions. [2024-11-09 06:29:14,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 06:29:14,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:14,718 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:14,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (28)] Ended with exit code 0 [2024-11-09 06:29:14,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:29:14,919 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:29:14,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:14,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1380818668, now seen corresponding path program 2 times [2024-11-09 06:29:14,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:14,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686319337] [2024-11-09 06:29:14,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:29:14,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:29:14,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:14,922 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:29:14,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (29)] Waiting until timeout for monitored process [2024-11-09 06:29:15,417 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:29:15,417 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:29:15,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-09 06:29:15,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:15,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:29:15,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:29:15,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:29:15,776 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:29:15,777 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:29:15,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:29:15,925 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:29:15,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 34 [2024-11-09 06:29:16,021 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:16,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 90 [2024-11-09 06:29:20,403 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:29:20,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 71 [2024-11-09 06:29:20,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:29:20,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 69 [2024-11-09 06:29:20,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:29:20,777 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:29:20,777 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:20,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686319337] [2024-11-09 06:29:20,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686319337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:20,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:20,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 06:29:20,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140408272] [2024-11-09 06:29:20,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:20,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:29:20,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:20,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:29:20,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=68, Unknown=2, NotChecked=0, Total=90 [2024-11-09 06:29:20,779 INFO L87 Difference]: Start difference. First operand 449 states and 1033 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:24,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:26,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:30,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:32,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:34,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:36,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:38,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:42,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:44,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:46,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:48,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:52,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:54,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:56,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:58,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:01,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:03,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:05,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:07,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:09,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:15,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:17,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:19,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:21,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:23,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:25,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:28,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:30,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:32,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:34,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:36,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:38,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:40,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:42,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:44,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:46,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:48,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:50,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:52,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:54,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:58,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:07,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:09,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:11,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:13,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:15,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:17,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:18,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:31:18,362 INFO L93 Difference]: Finished difference Result 578 states and 1306 transitions. [2024-11-09 06:31:18,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:31:18,363 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-09 06:31:18,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:31:18,368 INFO L225 Difference]: With dead ends: 578 [2024-11-09 06:31:18,368 INFO L226 Difference]: Without dead ends: 575 [2024-11-09 06:31:18,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=132, Invalid=319, Unknown=11, NotChecked=0, Total=462 [2024-11-09 06:31:18,368 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 214 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 5 mSolverCounterUnsat, 47 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 47 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:31:18,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 149 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 566 Invalid, 47 Unknown, 0 Unchecked, 98.5s Time] [2024-11-09 06:31:18,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-09 06:31:18,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 475. [2024-11-09 06:31:18,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 472 states have (on average 2.3241525423728815) internal successors, (1097), 474 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:31:18,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 1097 transitions. [2024-11-09 06:31:18,380 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 1097 transitions. Word has length 41 [2024-11-09 06:31:18,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:31:18,381 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 1097 transitions. [2024-11-09 06:31:18,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:31:18,381 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 1097 transitions. [2024-11-09 06:31:18,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 06:31:18,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:31:18,382 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:31:18,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (29)] Forceful destruction successful, exit code 0 [2024-11-09 06:31:18,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:31:18,582 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:31:18,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:31:18,583 INFO L85 PathProgramCache]: Analyzing trace with hash 328739496, now seen corresponding path program 3 times [2024-11-09 06:31:18,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:31:18,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264818759] [2024-11-09 06:31:18,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:31:18,583 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 06:31:18,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:31:18,585 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:31:18,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (30)] Waiting until timeout for monitored process [2024-11-09 06:31:19,001 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-09 06:31:19,001 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:31:19,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-09 06:31:19,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:31:19,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:31:19,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:31:19,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:31:19,290 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:31:19,291 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:31:19,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:31:19,372 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:31:19,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 85 [2024-11-09 06:31:21,515 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:31:21,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 66 [2024-11-09 06:31:23,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:31:23,849 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:31:23,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 71 [2024-11-09 06:31:24,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 69 [2024-11-09 06:31:24,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:31:24,337 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:31:24,337 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:31:24,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264818759] [2024-11-09 06:31:24,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264818759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:31:24,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:31:24,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 06:31:24,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855645707] [2024-11-09 06:31:24,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:31:24,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:31:24,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:31:24,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:31:24,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=69, Unknown=2, NotChecked=0, Total=90 [2024-11-09 06:31:24,339 INFO L87 Difference]: Start difference. First operand 475 states and 1097 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:31:27,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:29,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:31,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:37,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:39,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:41,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:43,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:45,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:47,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:49,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:51,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:53,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:59,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:01,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:03,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:05,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:07,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:09,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:13,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:15,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:17,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:19,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:21,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:23,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:25,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:28,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:30,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:32,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:34,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:36,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:38,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:40,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:46,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:48,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:50,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:52,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:54,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:56,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:58,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:00,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:03,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:05,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:07,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:09,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:11,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:13,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:15,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:18,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:20,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:22,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:24,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:26,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:28,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:30,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:32,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:34,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:36,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:38,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:40,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:45,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:33:45,766 INFO L93 Difference]: Finished difference Result 580 states and 1308 transitions. [2024-11-09 06:33:45,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:33:45,766 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-09 06:33:45,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:33:45,771 INFO L225 Difference]: With dead ends: 580 [2024-11-09 06:33:45,771 INFO L226 Difference]: Without dead ends: 577 [2024-11-09 06:33:45,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 23.4s TimeCoverageRelationStatistics Valid=115, Invalid=294, Unknown=11, NotChecked=0, Total=420 [2024-11-09 06:33:45,772 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 248 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 5 mSolverCounterUnsat, 59 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 122.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 59 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 122.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:33:45,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 127 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 470 Invalid, 59 Unknown, 0 Unchecked, 122.5s Time] [2024-11-09 06:33:45,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-09 06:33:45,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 514. [2024-11-09 06:33:45,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 511 states have (on average 2.309197651663405) internal successors, (1180), 513 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:33:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 1180 transitions. [2024-11-09 06:33:45,787 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 1180 transitions. Word has length 41 [2024-11-09 06:33:45,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:33:45,788 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 1180 transitions. [2024-11-09 06:33:45,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:33:45,788 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 1180 transitions. [2024-11-09 06:33:45,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 06:33:45,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:33:45,790 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:33:45,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (30)] Ended with exit code 0 [2024-11-09 06:33:45,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:33:45,990 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:33:45,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:33:45,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1524494294, now seen corresponding path program 4 times [2024-11-09 06:33:45,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:33:45,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744040271] [2024-11-09 06:33:45,992 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:33:45,992 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 06:33:45,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:33:45,993 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:33:45,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (31)] Waiting until timeout for monitored process [2024-11-09 06:33:46,297 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:33:46,297 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:33:46,305 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:33:46,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:33:46,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-09 06:33:46,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:33:46,480 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:33:46,480 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:33:46,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744040271] [2024-11-09 06:33:46,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744040271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:33:46,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:33:46,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:33:46,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503840350] [2024-11-09 06:33:46,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:33:46,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:33:46,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:33:46,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:33:46,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:33:46,482 INFO L87 Difference]: Start difference. First operand 514 states and 1180 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:33:47,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:33:47,572 INFO L93 Difference]: Finished difference Result 1422 states and 3199 transitions. [2024-11-09 06:33:47,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:33:47,573 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-09 06:33:47,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:33:47,581 INFO L225 Difference]: With dead ends: 1422 [2024-11-09 06:33:47,581 INFO L226 Difference]: Without dead ends: 1114 [2024-11-09 06:33:47,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:33:47,583 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 323 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:33:47,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 139 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:33:47,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2024-11-09 06:33:47,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 538. [2024-11-09 06:33:47,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 535 states have (on average 2.291588785046729) internal successors, (1226), 537 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:33:47,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1226 transitions. [2024-11-09 06:33:47,602 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1226 transitions. Word has length 41 [2024-11-09 06:33:47,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:33:47,603 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 1226 transitions. [2024-11-09 06:33:47,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:33:47,603 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1226 transitions. [2024-11-09 06:33:47,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 06:33:47,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:33:47,604 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:33:47,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (31)] Forceful destruction successful, exit code 0 [2024-11-09 06:33:47,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:33:47,805 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:33:47,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:33:47,806 INFO L85 PathProgramCache]: Analyzing trace with hash -738779596, now seen corresponding path program 5 times [2024-11-09 06:33:47,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:33:47,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609023682] [2024-11-09 06:33:47,807 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 06:33:47,807 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 06:33:47,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:33:47,810 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:33:47,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (32)] Waiting until timeout for monitored process [2024-11-09 06:33:48,249 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:33:48,249 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:33:48,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 06:33:48,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:33:48,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:33:48,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:33:48,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:33:48,514 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:33:48,515 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:33:48,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:33:48,590 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:33:48,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 85 [2024-11-09 06:33:50,851 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:33:50,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 66 [2024-11-09 06:33:53,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:33:53,084 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:33:53,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 71 [2024-11-09 06:33:53,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 69 [2024-11-09 06:33:53,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:33:53,394 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:33:53,394 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:33:53,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609023682] [2024-11-09 06:33:53,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609023682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:33:53,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:33:53,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 06:33:53,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964037644] [2024-11-09 06:33:53,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:33:53,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:33:53,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:33:53,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:33:53,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=69, Unknown=2, NotChecked=0, Total=90 [2024-11-09 06:33:53,396 INFO L87 Difference]: Start difference. First operand 538 states and 1226 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:33:56,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:58,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:00,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:06,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:08,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:10,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:12,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:14,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:16,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:18,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:22,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:24,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:26,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:28,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:30,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:32,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:34,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:36,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:42,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:44,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:46,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:48,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:50,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:52,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:54,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:56,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:58,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:00,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:03,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:05,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:07,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:09,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:15,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:17,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:19,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:21,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:23,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:25,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:27,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:29,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:32,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:34,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:36,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:38,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:40,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:42,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:44,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:51,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:53,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:55,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:57,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:59,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:01,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:03,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:04,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:04,364 INFO L93 Difference]: Finished difference Result 663 states and 1495 transitions. [2024-11-09 06:36:04,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:36:04,364 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-09 06:36:04,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:04,369 INFO L225 Difference]: With dead ends: 663 [2024-11-09 06:36:04,369 INFO L226 Difference]: Without dead ends: 660 [2024-11-09 06:36:04,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 23.3s TimeCoverageRelationStatistics Valid=115, Invalid=294, Unknown=11, NotChecked=0, Total=420 [2024-11-09 06:36:04,370 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 228 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 5 mSolverCounterUnsat, 54 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 111.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 54 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:04,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 130 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 491 Invalid, 54 Unknown, 0 Unchecked, 112.0s Time] [2024-11-09 06:36:04,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2024-11-09 06:36:04,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 562. [2024-11-09 06:36:04,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 559 states have (on average 2.29695885509839) internal successors, (1284), 561 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:04,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1284 transitions. [2024-11-09 06:36:04,387 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1284 transitions. Word has length 41 [2024-11-09 06:36:04,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:04,387 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 1284 transitions. [2024-11-09 06:36:04,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:04,387 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1284 transitions. [2024-11-09 06:36:04,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 06:36:04,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:04,389 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:36:04,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (32)] Forceful destruction successful, exit code 0 [2024-11-09 06:36:04,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:36:04,589 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:36:04,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:04,590 INFO L85 PathProgramCache]: Analyzing trace with hash 529401820, now seen corresponding path program 6 times [2024-11-09 06:36:04,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:36:04,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369494127] [2024-11-09 06:36:04,591 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 06:36:04,591 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 06:36:04,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:36:04,594 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:36:04,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (33)] Waiting until timeout for monitored process [2024-11-09 06:36:04,979 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-09 06:36:04,980 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:36:04,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:36:04,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:05,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-09 06:36:05,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:36:05,228 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:36:05,228 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:36:05,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369494127] [2024-11-09 06:36:05,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369494127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:36:05,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:36:05,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:36:05,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821135121] [2024-11-09 06:36:05,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:36:05,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:36:05,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:36:05,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:36:05,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:36:05,230 INFO L87 Difference]: Start difference. First operand 562 states and 1284 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:06,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:06,483 INFO L93 Difference]: Finished difference Result 1138 states and 2558 transitions. [2024-11-09 06:36:06,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:36:06,484 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-09 06:36:06,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:06,489 INFO L225 Difference]: With dead ends: 1138 [2024-11-09 06:36:06,489 INFO L226 Difference]: Without dead ends: 806 [2024-11-09 06:36:06,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:36:06,490 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 248 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:06,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 178 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:36:06,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-11-09 06:36:06,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 562. [2024-11-09 06:36:06,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 559 states have (on average 2.29695885509839) internal successors, (1284), 561 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:06,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1284 transitions. [2024-11-09 06:36:06,503 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1284 transitions. Word has length 41 [2024-11-09 06:36:06,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:06,503 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 1284 transitions. [2024-11-09 06:36:06,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:06,504 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1284 transitions. [2024-11-09 06:36:06,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 06:36:06,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:06,505 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:36:06,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (33)] Ended with exit code 0 [2024-11-09 06:36:06,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:36:06,706 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:36:06,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:06,706 INFO L85 PathProgramCache]: Analyzing trace with hash -657958462, now seen corresponding path program 7 times [2024-11-09 06:36:06,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:36:06,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697689764] [2024-11-09 06:36:06,707 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 06:36:06,707 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 06:36:06,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:36:06,708 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:36:06,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (34)] Waiting until timeout for monitored process [2024-11-09 06:36:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:36:07,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:36:07,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:07,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-09 06:36:07,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:36:07,264 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:36:07,264 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:36:07,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697689764] [2024-11-09 06:36:07,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697689764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:36:07,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:36:07,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:36:07,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326059457] [2024-11-09 06:36:07,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:36:07,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:36:07,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:36:07,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:36:07,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:36:07,266 INFO L87 Difference]: Start difference. First operand 562 states and 1284 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:08,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:08,309 INFO L93 Difference]: Finished difference Result 1274 states and 2934 transitions. [2024-11-09 06:36:08,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:36:08,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-09 06:36:08,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:08,315 INFO L225 Difference]: With dead ends: 1274 [2024-11-09 06:36:08,315 INFO L226 Difference]: Without dead ends: 942 [2024-11-09 06:36:08,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:36:08,316 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 152 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:08,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 178 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:36:08,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-11-09 06:36:08,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 562. [2024-11-09 06:36:08,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 559 states have (on average 2.29695885509839) internal successors, (1284), 561 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:08,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1284 transitions. [2024-11-09 06:36:08,328 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1284 transitions. Word has length 41 [2024-11-09 06:36:08,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:08,329 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 1284 transitions. [2024-11-09 06:36:08,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:08,329 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1284 transitions. [2024-11-09 06:36:08,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 06:36:08,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:08,330 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:36:08,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (34)] Forceful destruction successful, exit code 0 [2024-11-09 06:36:08,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:36:08,531 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:36:08,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:08,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1639337540, now seen corresponding path program 8 times [2024-11-09 06:36:08,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:36:08,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427674616] [2024-11-09 06:36:08,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:36:08,532 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 06:36:08,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:36:08,535 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:36:08,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (35)] Waiting until timeout for monitored process [2024-11-09 06:36:08,893 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:36:08,894 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:36:08,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:36:08,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:09,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-09 06:36:09,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:36:09,069 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:36:09,069 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:36:09,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427674616] [2024-11-09 06:36:09,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427674616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:36:09,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:36:09,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:36:09,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143169769] [2024-11-09 06:36:09,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:36:09,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:36:09,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:36:09,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:36:09,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:36:09,070 INFO L87 Difference]: Start difference. First operand 562 states and 1284 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:10,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:10,557 INFO L93 Difference]: Finished difference Result 1204 states and 2694 transitions. [2024-11-09 06:36:10,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:36:10,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-09 06:36:10,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:10,567 INFO L225 Difference]: With dead ends: 1204 [2024-11-09 06:36:10,568 INFO L226 Difference]: Without dead ends: 872 [2024-11-09 06:36:10,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:36:10,569 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 194 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:10,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 210 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:36:10,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2024-11-09 06:36:10,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 534. [2024-11-09 06:36:10,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 531 states have (on average 2.273069679849341) internal successors, (1207), 533 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 1207 transitions. [2024-11-09 06:36:10,584 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 1207 transitions. Word has length 41 [2024-11-09 06:36:10,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:10,584 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 1207 transitions. [2024-11-09 06:36:10,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:10,584 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 1207 transitions. [2024-11-09 06:36:10,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 06:36:10,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:10,586 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:36:10,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (35)] Forceful destruction successful, exit code 0 [2024-11-09 06:36:10,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:36:10,786 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:36:10,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:10,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1836912386, now seen corresponding path program 9 times [2024-11-09 06:36:10,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:36:10,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804662474] [2024-11-09 06:36:10,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:36:10,788 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 06:36:10,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:36:10,789 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:36:10,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (36)] Waiting until timeout for monitored process [2024-11-09 06:36:11,163 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-09 06:36:11,163 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:36:11,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:36:11,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:11,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-09 06:36:11,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:36:11,340 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:36:11,340 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:36:11,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [804662474] [2024-11-09 06:36:11,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [804662474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:36:11,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:36:11,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:36:11,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017890506] [2024-11-09 06:36:11,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:36:11,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:36:11,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:36:11,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:36:11,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:36:11,342 INFO L87 Difference]: Start difference. First operand 534 states and 1207 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:12,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:12,318 INFO L93 Difference]: Finished difference Result 666 states and 1463 transitions. [2024-11-09 06:36:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:36:12,319 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-09 06:36:12,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:12,325 INFO L225 Difference]: With dead ends: 666 [2024-11-09 06:36:12,325 INFO L226 Difference]: Without dead ends: 334 [2024-11-09 06:36:12,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:36:12,326 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 64 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:12,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 159 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:36:12,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-09 06:36:12,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 294. [2024-11-09 06:36:12,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 292 states have (on average 2.0753424657534247) internal successors, (606), 293 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:12,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 606 transitions. [2024-11-09 06:36:12,336 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 606 transitions. Word has length 41 [2024-11-09 06:36:12,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:12,336 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 606 transitions. [2024-11-09 06:36:12,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:12,336 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 606 transitions. [2024-11-09 06:36:12,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:36:12,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:12,337 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:36:12,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (36)] Forceful destruction successful, exit code 0 [2024-11-09 06:36:12,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:36:12,538 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:36:12,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:12,538 INFO L85 PathProgramCache]: Analyzing trace with hash 82984562, now seen corresponding path program 1 times [2024-11-09 06:36:12,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:36:12,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749186410] [2024-11-09 06:36:12,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:12,539 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 06:36:12,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:36:12,540 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:36:12,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (37)] Waiting until timeout for monitored process [2024-11-09 06:36:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:36:13,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 06:36:13,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:13,110 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:36:13,110 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:36:13,111 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:36:13,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:36:13,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2024-11-09 06:36:14,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 92 [2024-11-09 06:36:14,415 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:36:14,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 88 [2024-11-09 06:36:14,620 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:36:14,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 129 [2024-11-09 06:36:14,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:36:14,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 156 [2024-11-09 06:36:15,423 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:36:15,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 348 [2024-11-09 06:36:15,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:36:15,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 293 [2024-11-09 06:36:16,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:36:16,075 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:36:16,075 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:36:16,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749186410] [2024-11-09 06:36:16,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749186410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:36:16,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:36:16,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-09 06:36:16,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841660680] [2024-11-09 06:36:16,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:36:16,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 06:36:16,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:36:16,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 06:36:16,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:36:16,078 INFO L87 Difference]: Start difference. First operand 294 states and 606 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:26,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:29,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:31,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:33,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:33,723 INFO L93 Difference]: Finished difference Result 484 states and 983 transitions. [2024-11-09 06:36:33,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 06:36:33,724 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-09 06:36:33,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:33,730 INFO L225 Difference]: With dead ends: 484 [2024-11-09 06:36:33,730 INFO L226 Difference]: Without dead ends: 481 [2024-11-09 06:36:33,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=217, Invalid=1265, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 06:36:33,732 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 150 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 17 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:33,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 203 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1399 Invalid, 3 Unknown, 0 Unchecked, 14.9s Time] [2024-11-09 06:36:33,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-09 06:36:33,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 371. [2024-11-09 06:36:33,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 369 states have (on average 2.065040650406504) internal successors, (762), 370 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:33,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 762 transitions. [2024-11-09 06:36:33,743 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 762 transitions. Word has length 44 [2024-11-09 06:36:33,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:33,743 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 762 transitions. [2024-11-09 06:36:33,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:33,743 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 762 transitions. [2024-11-09 06:36:33,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:36:33,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:33,744 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:36:33,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (37)] Forceful destruction successful, exit code 0 [2024-11-09 06:36:33,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:36:33,945 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:36:33,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:33,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1243027734, now seen corresponding path program 2 times [2024-11-09 06:36:33,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:36:33,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582435894] [2024-11-09 06:36:33,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:36:33,946 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 06:36:33,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:36:33,947 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:36:33,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (38)] Waiting until timeout for monitored process [2024-11-09 06:36:34,611 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:36:34,611 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:36:34,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-09 06:36:34,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:34,706 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:36:34,706 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:36:34,707 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:36:34,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:36:35,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2024-11-09 06:36:35,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 92 [2024-11-09 06:36:36,114 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:36:36,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 124 [2024-11-09 06:36:36,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 82 [2024-11-09 06:36:36,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:36:36,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:36:36,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:36:36,311 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:36:36,311 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:36:36,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 273 [2024-11-09 06:36:36,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:36:36,492 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:36:36,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 281 treesize of output 274 [2024-11-09 06:36:36,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 333 treesize of output 285 [2024-11-09 06:36:36,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:36:36,966 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:36:36,967 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:36:36,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582435894] [2024-11-09 06:36:36,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582435894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:36:36,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:36:36,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-09 06:36:36,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104006943] [2024-11-09 06:36:36,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:36:36,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 06:36:36,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:36:36,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 06:36:36,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:36:36,971 INFO L87 Difference]: Start difference. First operand 371 states and 762 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:45,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:47,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:50,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:52,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:54,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:56,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:57,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:57,718 INFO L93 Difference]: Finished difference Result 493 states and 992 transitions. [2024-11-09 06:36:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 06:36:57,719 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-09 06:36:57,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:57,724 INFO L225 Difference]: With dead ends: 493 [2024-11-09 06:36:57,724 INFO L226 Difference]: Without dead ends: 490 [2024-11-09 06:36:57,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 06:36:57,724 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 157 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 20 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:57,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 199 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1311 Invalid, 6 Unknown, 0 Unchecked, 18.5s Time] [2024-11-09 06:36:57,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-09 06:36:57,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 389. [2024-11-09 06:36:57,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 387 states have (on average 2.0775193798449614) internal successors, (804), 388 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:57,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 804 transitions. [2024-11-09 06:36:57,733 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 804 transitions. Word has length 44 [2024-11-09 06:36:57,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:57,734 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 804 transitions. [2024-11-09 06:36:57,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:36:57,734 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 804 transitions. [2024-11-09 06:36:57,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:36:57,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:57,735 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:36:57,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (38)] Forceful destruction successful, exit code 0 [2024-11-09 06:36:57,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:36:57,935 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:36:57,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:57,936 INFO L85 PathProgramCache]: Analyzing trace with hash 937685422, now seen corresponding path program 3 times [2024-11-09 06:36:57,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:36:57,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843428909] [2024-11-09 06:36:57,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:36:57,937 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 06:36:57,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:36:57,938 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:36:57,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (39)] Waiting until timeout for monitored process [2024-11-09 06:36:58,419 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-09 06:36:58,420 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:36:58,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 06:36:58,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:58,486 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:36:58,487 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:36:58,487 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:36:58,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:36:59,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2024-11-09 06:36:59,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 92 [2024-11-09 06:36:59,722 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:36:59,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 124 [2024-11-09 06:36:59,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:36:59,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 151 [2024-11-09 06:37:00,134 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:37:00,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 297 treesize of output 286 [2024-11-09 06:37:00,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:37:00,376 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:37:00,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 302 treesize of output 291 [2024-11-09 06:37:00,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 293 [2024-11-09 06:37:00,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:37:00,777 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:37:00,777 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:37:00,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843428909] [2024-11-09 06:37:00,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843428909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:37:00,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:37:00,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-09 06:37:00,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217585897] [2024-11-09 06:37:00,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:00,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 06:37:00,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:37:00,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 06:37:00,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:37:00,780 INFO L87 Difference]: Start difference. First operand 389 states and 804 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:37:08,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:11,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:13,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:15,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:17,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:19,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:21,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:37:21,092 INFO L93 Difference]: Finished difference Result 491 states and 990 transitions. [2024-11-09 06:37:21,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 06:37:21,092 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-09 06:37:21,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:37:21,097 INFO L225 Difference]: With dead ends: 491 [2024-11-09 06:37:21,097 INFO L226 Difference]: Without dead ends: 488 [2024-11-09 06:37:21,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=199, Invalid=1133, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 06:37:21,098 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 173 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 21 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:37:21,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 184 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1208 Invalid, 6 Unknown, 0 Unchecked, 18.0s Time] [2024-11-09 06:37:21,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-09 06:37:21,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 416. [2024-11-09 06:37:21,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 414 states have (on average 2.072463768115942) internal successors, (858), 415 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:37:21,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 858 transitions. [2024-11-09 06:37:21,109 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 858 transitions. Word has length 44 [2024-11-09 06:37:21,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:37:21,109 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 858 transitions. [2024-11-09 06:37:21,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:37:21,109 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 858 transitions. [2024-11-09 06:37:21,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:37:21,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:37:21,111 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:37:21,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (39)] Forceful destruction successful, exit code 0 [2024-11-09 06:37:21,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:37:21,311 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:37:21,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:21,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1186436924, now seen corresponding path program 4 times [2024-11-09 06:37:21,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:37:21,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394876796] [2024-11-09 06:37:21,312 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:37:21,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:37:21,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:37:21,313 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:37:21,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (40)] Waiting until timeout for monitored process [2024-11-09 06:37:21,820 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:37:21,821 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:37:21,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 06:37:21,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:37:21,899 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:37:21,900 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:37:21,900 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:37:21,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:37:22,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2024-11-09 06:37:22,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 92 [2024-11-09 06:37:23,190 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:37:23,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 124 [2024-11-09 06:37:23,323 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:37:23,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 94 [2024-11-09 06:37:23,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:37:23,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 156 [2024-11-09 06:37:23,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:37:24,007 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:37:24,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 348 [2024-11-09 06:37:24,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 293 [2024-11-09 06:37:24,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:37:24,523 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:37:24,523 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:37:24,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394876796] [2024-11-09 06:37:24,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394876796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:37:24,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:37:24,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-09 06:37:24,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175339095] [2024-11-09 06:37:24,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:24,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 06:37:24,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:37:24,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 06:37:24,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:37:24,525 INFO L87 Difference]: Start difference. First operand 416 states and 858 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:37:33,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:35,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:38,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:41,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:43,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:37:43,032 INFO L93 Difference]: Finished difference Result 503 states and 1008 transitions. [2024-11-09 06:37:43,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 06:37:43,032 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-09 06:37:43,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:37:43,037 INFO L225 Difference]: With dead ends: 503 [2024-11-09 06:37:43,037 INFO L226 Difference]: Without dead ends: 500 [2024-11-09 06:37:43,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=200, Invalid=1132, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 06:37:43,038 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 152 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 16 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:37:43,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 197 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1314 Invalid, 4 Unknown, 0 Unchecked, 16.0s Time] [2024-11-09 06:37:43,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-11-09 06:37:43,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 416. [2024-11-09 06:37:43,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 414 states have (on average 2.072463768115942) internal successors, (858), 415 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:37:43,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 858 transitions. [2024-11-09 06:37:43,049 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 858 transitions. Word has length 44 [2024-11-09 06:37:43,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:37:43,049 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 858 transitions. [2024-11-09 06:37:43,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:37:43,049 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 858 transitions. [2024-11-09 06:37:43,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:37:43,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:37:43,051 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:37:43,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (40)] Ended with exit code 0 [2024-11-09 06:37:43,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:37:43,251 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:37:43,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:43,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1118018706, now seen corresponding path program 5 times [2024-11-09 06:37:43,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:37:43,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979374641] [2024-11-09 06:37:43,252 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 06:37:43,252 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 06:37:43,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:37:43,253 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:37:43,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (41)] Waiting until timeout for monitored process [2024-11-09 06:37:43,727 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:37:43,727 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:37:43,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 06:37:43,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:37:43,795 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:37:43,795 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:37:43,796 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:37:43,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:37:44,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2024-11-09 06:37:44,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 92 [2024-11-09 06:37:44,919 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:37:44,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 88 [2024-11-09 06:37:45,201 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:37:45,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 129 [2024-11-09 06:37:45,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:37:45,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 156 [2024-11-09 06:37:45,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:37:45,901 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:37:45,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 348 [2024-11-09 06:37:46,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 293 [2024-11-09 06:37:46,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:37:46,483 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:37:46,483 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:37:46,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979374641] [2024-11-09 06:37:46,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979374641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:37:46,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:37:46,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-09 06:37:46,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745652563] [2024-11-09 06:37:46,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:46,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 06:37:46,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:37:46,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 06:37:46,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:37:46,485 INFO L87 Difference]: Start difference. First operand 416 states and 858 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:37:55,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:58,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:01,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:02,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:02,900 INFO L93 Difference]: Finished difference Result 598 states and 1227 transitions. [2024-11-09 06:38:02,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 06:38:02,900 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-09 06:38:02,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:02,906 INFO L225 Difference]: With dead ends: 598 [2024-11-09 06:38:02,906 INFO L226 Difference]: Without dead ends: 595 [2024-11-09 06:38:02,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=224, Invalid=1336, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 06:38:02,907 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 154 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:02,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 203 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1308 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2024-11-09 06:38:02,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-09 06:38:02,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 469. [2024-11-09 06:38:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 467 states have (on average 2.1049250535331905) internal successors, (983), 468 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:02,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 983 transitions. [2024-11-09 06:38:02,921 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 983 transitions. Word has length 44 [2024-11-09 06:38:02,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:02,922 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 983 transitions. [2024-11-09 06:38:02,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:02,922 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 983 transitions. [2024-11-09 06:38:02,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:38:02,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:02,923 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:02,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (41)] Forceful destruction successful, exit code 0 [2024-11-09 06:38:03,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:38:03,124 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:38:03,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:03,124 INFO L85 PathProgramCache]: Analyzing trace with hash -629987460, now seen corresponding path program 6 times [2024-11-09 06:38:03,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:38:03,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757569978] [2024-11-09 06:38:03,125 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 06:38:03,125 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 06:38:03,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:38:03,126 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:38:03,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (42)] Waiting until timeout for monitored process [2024-11-09 06:38:03,608 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-09 06:38:03,608 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:38:03,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-09 06:38:03,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:38:03,699 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:38:03,700 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:38:03,701 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:38:03,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:38:04,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2024-11-09 06:38:04,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 92 [2024-11-09 06:38:04,965 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:38:04,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 124 [2024-11-09 06:38:05,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 82 [2024-11-09 06:38:05,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:38:05,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:38:05,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:38:05,148 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:38:05,148 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:38:05,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 273 [2024-11-09 06:38:05,290 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:38:05,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 281 treesize of output 274 [2024-11-09 06:38:05,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:38:05,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 333 treesize of output 285 [2024-11-09 06:38:05,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:05,640 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:38:05,641 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:38:05,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757569978] [2024-11-09 06:38:05,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757569978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:05,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:05,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-09 06:38:05,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552852685] [2024-11-09 06:38:05,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:05,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 06:38:05,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:38:05,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 06:38:05,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:38:05,642 INFO L87 Difference]: Start difference. First operand 469 states and 983 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:13,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:15,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:17,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:19,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:21,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:23,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:25,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:27,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:27,226 INFO L93 Difference]: Finished difference Result 590 states and 1219 transitions. [2024-11-09 06:38:27,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 06:38:27,226 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-09 06:38:27,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:27,232 INFO L225 Difference]: With dead ends: 590 [2024-11-09 06:38:27,232 INFO L226 Difference]: Without dead ends: 587 [2024-11-09 06:38:27,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=183, Invalid=1077, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 06:38:27,233 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 141 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 11 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:27,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 201 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1322 Invalid, 7 Unknown, 0 Unchecked, 19.5s Time] [2024-11-09 06:38:27,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-11-09 06:38:27,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 487. [2024-11-09 06:38:27,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 485 states have (on average 2.11340206185567) internal successors, (1025), 486 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:27,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 1025 transitions. [2024-11-09 06:38:27,261 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 1025 transitions. Word has length 44 [2024-11-09 06:38:27,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:27,262 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 1025 transitions. [2024-11-09 06:38:27,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:27,262 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 1025 transitions. [2024-11-09 06:38:27,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:38:27,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:27,264 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:27,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (42)] Ended with exit code 0 [2024-11-09 06:38:27,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:38:27,464 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:38:27,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:27,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1550725696, now seen corresponding path program 7 times [2024-11-09 06:38:27,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:38:27,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865516668] [2024-11-09 06:38:27,466 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 06:38:27,466 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 06:38:27,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:38:27,467 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:38:27,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (43)] Waiting until timeout for monitored process [2024-11-09 06:38:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:27,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 06:38:27,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:38:28,049 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:38:28,050 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:38:28,051 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:38:28,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:38:28,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2024-11-09 06:38:28,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 92 [2024-11-09 06:38:29,269 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:38:29,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 124 [2024-11-09 06:38:29,495 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:29,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 151 [2024-11-09 06:38:29,605 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:38:29,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 297 treesize of output 286 [2024-11-09 06:38:29,838 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:38:29,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 302 treesize of output 291 [2024-11-09 06:38:29,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:38:30,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 293 [2024-11-09 06:38:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:30,258 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:38:30,258 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:38:30,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865516668] [2024-11-09 06:38:30,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865516668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:30,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:30,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-09 06:38:30,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202292038] [2024-11-09 06:38:30,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:30,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 06:38:30,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:38:30,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 06:38:30,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:38:30,260 INFO L87 Difference]: Start difference. First operand 487 states and 1025 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:39,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:41,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:43,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:45,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:47,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:49,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:51,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:51,328 INFO L93 Difference]: Finished difference Result 588 states and 1217 transitions. [2024-11-09 06:38:51,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 06:38:51,329 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-09 06:38:51,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:51,334 INFO L225 Difference]: With dead ends: 588 [2024-11-09 06:38:51,334 INFO L226 Difference]: Without dead ends: 585 [2024-11-09 06:38:51,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=190, Invalid=1142, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 06:38:51,335 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 164 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 11 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:51,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 199 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1310 Invalid, 6 Unknown, 0 Unchecked, 18.7s Time] [2024-11-09 06:38:51,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-09 06:38:51,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 478. [2024-11-09 06:38:51,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 476 states have (on average 2.1092436974789917) internal successors, (1004), 477 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:51,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 1004 transitions. [2024-11-09 06:38:51,345 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 1004 transitions. Word has length 44 [2024-11-09 06:38:51,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:51,345 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 1004 transitions. [2024-11-09 06:38:51,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:38:51,345 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 1004 transitions. [2024-11-09 06:38:51,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:38:51,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:51,346 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:38:51,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (43)] Forceful destruction successful, exit code 0 [2024-11-09 06:38:51,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:38:51,546 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:38:51,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:51,547 INFO L85 PathProgramCache]: Analyzing trace with hash -573396650, now seen corresponding path program 8 times [2024-11-09 06:38:51,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:38:51,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289752733] [2024-11-09 06:38:51,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:38:51,548 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 06:38:51,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:38:51,551 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:38:51,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (44)] Waiting until timeout for monitored process [2024-11-09 06:38:52,071 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:38:52,072 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:38:52,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 06:38:52,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:38:52,143 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:38:52,144 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:38:52,144 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:38:52,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:38:52,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2024-11-09 06:38:52,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 92 [2024-11-09 06:38:53,359 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:38:53,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 124 [2024-11-09 06:38:53,505 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:38:53,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 94 [2024-11-09 06:38:53,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:53,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 156 [2024-11-09 06:38:54,247 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:38:54,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 348 [2024-11-09 06:38:54,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:38:54,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 293 [2024-11-09 06:38:54,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:54,714 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:38:54,714 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:38:54,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289752733] [2024-11-09 06:38:54,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289752733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:54,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:54,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-09 06:38:54,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683367749] [2024-11-09 06:38:54,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:54,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 06:38:54,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:38:54,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 06:38:54,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:38:54,716 INFO L87 Difference]: Start difference. First operand 478 states and 1004 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:03,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:06,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:08,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:10,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:13,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:13,128 INFO L93 Difference]: Finished difference Result 591 states and 1220 transitions. [2024-11-09 06:39:13,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 06:39:13,128 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-09 06:39:13,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:13,135 INFO L225 Difference]: With dead ends: 591 [2024-11-09 06:39:13,136 INFO L226 Difference]: Without dead ends: 588 [2024-11-09 06:39:13,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=191, Invalid=1141, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 06:39:13,137 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 140 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 9 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:13,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 216 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1424 Invalid, 4 Unknown, 0 Unchecked, 16.0s Time] [2024-11-09 06:39:13,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-09 06:39:13,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 438. [2024-11-09 06:39:13,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 436 states have (on average 2.0940366972477062) internal successors, (913), 437 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:13,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 913 transitions. [2024-11-09 06:39:13,150 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 913 transitions. Word has length 44 [2024-11-09 06:39:13,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:13,151 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 913 transitions. [2024-11-09 06:39:13,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:13,151 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 913 transitions. [2024-11-09 06:39:13,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:39:13,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:13,153 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:13,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (44)] Forceful destruction successful, exit code 0 [2024-11-09 06:39:13,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:39:13,354 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:39:13,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:13,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1608854344, now seen corresponding path program 9 times [2024-11-09 06:39:13,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:39:13,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457669827] [2024-11-09 06:39:13,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:39:13,355 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 06:39:13,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:39:13,356 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:39:13,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (45)] Waiting until timeout for monitored process [2024-11-09 06:39:13,974 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-09 06:39:13,974 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:39:13,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 06:39:13,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:14,089 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:39:14,090 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:39:14,091 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:39:14,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:39:14,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2024-11-09 06:39:15,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 92 [2024-11-09 06:39:15,609 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:39:15,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 88 [2024-11-09 06:39:15,831 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:39:15,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 129 [2024-11-09 06:39:16,131 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:39:16,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 156 [2024-11-09 06:39:16,610 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:39:16,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 348 [2024-11-09 06:39:16,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:39:17,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 293 [2024-11-09 06:39:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:17,182 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:39:17,182 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:39:17,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457669827] [2024-11-09 06:39:17,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457669827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:17,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:17,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-09 06:39:17,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261800798] [2024-11-09 06:39:17,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:17,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 06:39:17,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:39:17,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 06:39:17,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:39:17,184 INFO L87 Difference]: Start difference. First operand 438 states and 913 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:26,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:29,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:32,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:34,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:34,706 INFO L93 Difference]: Finished difference Result 568 states and 1161 transitions. [2024-11-09 06:39:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 06:39:34,706 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-09 06:39:34,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:34,711 INFO L225 Difference]: With dead ends: 568 [2024-11-09 06:39:34,711 INFO L226 Difference]: Without dead ends: 565 [2024-11-09 06:39:34,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=217, Invalid=1265, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 06:39:34,712 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 137 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:34,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 205 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1367 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2024-11-09 06:39:34,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-09 06:39:34,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 473. [2024-11-09 06:39:34,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 471 states have (on average 2.1019108280254777) internal successors, (990), 472 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:34,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 990 transitions. [2024-11-09 06:39:34,722 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 990 transitions. Word has length 44 [2024-11-09 06:39:34,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:34,722 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 990 transitions. [2024-11-09 06:39:34,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:34,722 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 990 transitions. [2024-11-09 06:39:34,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:39:34,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:34,723 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:34,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (45)] Forceful destruction successful, exit code 0 [2024-11-09 06:39:34,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:39:34,924 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:39:34,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:34,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1360100656, now seen corresponding path program 10 times [2024-11-09 06:39:34,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:39:34,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873578205] [2024-11-09 06:39:34,925 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:39:34,925 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 06:39:34,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:39:34,926 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:39:34,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (46)] Waiting until timeout for monitored process [2024-11-09 06:39:35,485 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:39:35,485 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:39:35,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-09 06:39:35,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:35,576 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:39:35,577 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:39:35,577 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:39:35,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:39:36,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2024-11-09 06:39:36,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 92 [2024-11-09 06:39:37,133 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:39:37,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 124 [2024-11-09 06:39:37,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 82 [2024-11-09 06:39:37,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:37,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:37,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:39:37,369 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:39:37,370 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:39:37,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 273 [2024-11-09 06:39:37,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:39:37,596 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:39:37,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 281 treesize of output 274 [2024-11-09 06:39:38,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 333 treesize of output 285 [2024-11-09 06:39:38,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:38,100 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:39:38,100 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:39:38,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873578205] [2024-11-09 06:39:38,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873578205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:38,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:38,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-09 06:39:38,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610714286] [2024-11-09 06:39:38,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:38,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 06:39:38,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:39:38,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 06:39:38,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:39:38,103 INFO L87 Difference]: Start difference. First operand 473 states and 990 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:47,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:49,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:51,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:53,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:55,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:58,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:00,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:01,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:01,627 INFO L93 Difference]: Finished difference Result 563 states and 1156 transitions. [2024-11-09 06:40:01,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 06:40:01,628 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-09 06:40:01,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:01,634 INFO L225 Difference]: With dead ends: 563 [2024-11-09 06:40:01,634 INFO L226 Difference]: Without dead ends: 560 [2024-11-09 06:40:01,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 06:40:01,634 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 134 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 10 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:01,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 191 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1280 Invalid, 7 Unknown, 0 Unchecked, 20.9s Time] [2024-11-09 06:40:01,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-09 06:40:01,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 491. [2024-11-09 06:40:01,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 489 states have (on average 2.1104294478527605) internal successors, (1032), 490 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:40:01,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 1032 transitions. [2024-11-09 06:40:01,650 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 1032 transitions. Word has length 44 [2024-11-09 06:40:01,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:01,651 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 1032 transitions. [2024-11-09 06:40:01,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:40:01,651 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 1032 transitions. [2024-11-09 06:40:01,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:40:01,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:01,652 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:40:01,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (46)] Forceful destruction successful, exit code 0 [2024-11-09 06:40:01,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:40:01,852 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:40:01,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:01,853 INFO L85 PathProgramCache]: Analyzing trace with hash -754153484, now seen corresponding path program 11 times [2024-11-09 06:40:01,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:40:01,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557386637] [2024-11-09 06:40:01,854 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 06:40:01,854 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 06:40:01,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:40:01,856 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:40:01,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (47)] Waiting until timeout for monitored process [2024-11-09 06:40:02,379 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:40:02,379 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:40:02,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 06:40:02,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:02,467 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:02,467 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:02,468 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:02,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:40:03,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2024-11-09 06:40:03,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 92 [2024-11-09 06:40:04,110 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:04,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 124 [2024-11-09 06:40:04,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:04,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 151 [2024-11-09 06:40:04,543 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:40:04,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 297 treesize of output 286 [2024-11-09 06:40:04,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:40:04,840 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:40:04,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 302 treesize of output 291 [2024-11-09 06:40:05,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 293 [2024-11-09 06:40:05,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:40:05,302 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:40:05,303 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:40:05,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557386637] [2024-11-09 06:40:05,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557386637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:40:05,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:40:05,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-09 06:40:05,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809251700] [2024-11-09 06:40:05,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:05,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 06:40:05,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:40:05,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 06:40:05,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:40:05,305 INFO L87 Difference]: Start difference. First operand 491 states and 1032 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:40:13,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:16,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:18,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:20,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:22,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:25,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:26,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:26,849 INFO L93 Difference]: Finished difference Result 561 states and 1154 transitions. [2024-11-09 06:40:26,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 06:40:26,850 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-09 06:40:26,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:26,856 INFO L225 Difference]: With dead ends: 561 [2024-11-09 06:40:26,856 INFO L226 Difference]: Without dead ends: 558 [2024-11-09 06:40:26,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=199, Invalid=1133, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 06:40:26,856 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 136 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 8 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:26,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 204 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1368 Invalid, 6 Unknown, 0 Unchecked, 19.0s Time] [2024-11-09 06:40:26,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-09 06:40:26,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 482. [2024-11-09 06:40:26,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 480 states have (on average 2.10625) internal successors, (1011), 481 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:40:26,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1011 transitions. [2024-11-09 06:40:26,868 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1011 transitions. Word has length 44 [2024-11-09 06:40:26,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:26,868 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 1011 transitions. [2024-11-09 06:40:26,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:40:26,868 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1011 transitions. [2024-11-09 06:40:26,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:40:26,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:26,869 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:40:26,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (47)] Forceful destruction successful, exit code 0 [2024-11-09 06:40:27,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:40:27,070 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:40:27,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:27,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1416691466, now seen corresponding path program 12 times [2024-11-09 06:40:27,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:40:27,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599605790] [2024-11-09 06:40:27,071 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 06:40:27,071 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 06:40:27,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:40:27,072 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:40:27,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (48)] Waiting until timeout for monitored process [2024-11-09 06:40:27,613 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-09 06:40:27,614 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:40:27,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 06:40:27,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:27,713 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:27,714 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:27,715 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:27,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:40:28,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2024-11-09 06:40:29,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 92 [2024-11-09 06:40:29,410 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:29,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 124 [2024-11-09 06:40:29,660 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:40:29,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 94 [2024-11-09 06:40:30,022 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:30,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 156 [2024-11-09 06:40:30,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:40:30,579 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:40:30,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 348 [2024-11-09 06:40:31,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 293 [2024-11-09 06:40:31,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:40:31,206 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:40:31,206 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:40:31,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599605790] [2024-11-09 06:40:31,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [599605790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:40:31,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:40:31,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-09 06:40:31,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114738949] [2024-11-09 06:40:31,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:31,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 06:40:31,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:40:31,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 06:40:31,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:40:31,208 INFO L87 Difference]: Start difference. First operand 482 states and 1011 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:40:41,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:44,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:46,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:48,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:50,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:50,840 INFO L93 Difference]: Finished difference Result 564 states and 1157 transitions. [2024-11-09 06:40:50,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 06:40:50,841 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-09 06:40:50,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:50,847 INFO L225 Difference]: With dead ends: 564 [2024-11-09 06:40:50,847 INFO L226 Difference]: Without dead ends: 561 [2024-11-09 06:40:50,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=200, Invalid=1132, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 06:40:50,848 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 130 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:50,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 177 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1194 Invalid, 4 Unknown, 0 Unchecked, 16.4s Time] [2024-11-09 06:40:50,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-11-09 06:40:50,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 438. [2024-11-09 06:40:50,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 436 states have (on average 2.0940366972477062) internal successors, (913), 437 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:40:50,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 913 transitions. [2024-11-09 06:40:50,859 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 913 transitions. Word has length 44 [2024-11-09 06:40:50,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:50,860 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 913 transitions. [2024-11-09 06:40:50,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:40:50,860 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 913 transitions. [2024-11-09 06:40:50,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:40:50,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:50,861 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:40:50,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (48)] Forceful destruction successful, exit code 0 [2024-11-09 06:40:51,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:40:51,062 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:40:51,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:51,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1454206992, now seen corresponding path program 13 times [2024-11-09 06:40:51,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:40:51,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71628179] [2024-11-09 06:40:51,063 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 06:40:51,063 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 06:40:51,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:40:51,064 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:40:51,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (49)] Waiting until timeout for monitored process [2024-11-09 06:40:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:51,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-09 06:40:51,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:51,727 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:51,728 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:51,728 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:51,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:40:52,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2024-11-09 06:40:53,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 92 [2024-11-09 06:40:53,417 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:40:53,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 88 [2024-11-09 06:40:53,695 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:40:53,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 129 [2024-11-09 06:40:54,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:54,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 156 [2024-11-09 06:40:54,606 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:40:54,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 348 [2024-11-09 06:40:54,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:40:55,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 293 [2024-11-09 06:40:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:40:55,211 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:40:55,212 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:40:55,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71628179] [2024-11-09 06:40:55,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71628179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:40:55,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:40:55,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-09 06:40:55,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139103546] [2024-11-09 06:40:55,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:55,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 06:40:55,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:40:55,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 06:40:55,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:40:55,213 INFO L87 Difference]: Start difference. First operand 438 states and 913 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:41:04,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:07,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:09,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:12,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:41:12,045 INFO L93 Difference]: Finished difference Result 576 states and 1175 transitions. [2024-11-09 06:41:12,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 06:41:12,046 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-09 06:41:12,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:41:12,051 INFO L225 Difference]: With dead ends: 576 [2024-11-09 06:41:12,051 INFO L226 Difference]: Without dead ends: 573 [2024-11-09 06:41:12,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=216, Invalid=1266, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 06:41:12,052 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 144 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:41:12,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 163 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1100 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2024-11-09 06:41:12,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-11-09 06:41:12,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 477. [2024-11-09 06:41:12,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 475 states have (on average 2.0989473684210527) internal successors, (997), 476 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:41:12,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 997 transitions. [2024-11-09 06:41:12,062 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 997 transitions. Word has length 44 [2024-11-09 06:41:12,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:41:12,062 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 997 transitions. [2024-11-09 06:41:12,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:41:12,063 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 997 transitions. [2024-11-09 06:41:12,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:41:12,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:41:12,063 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:41:12,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (49)] Forceful destruction successful, exit code 0 [2024-11-09 06:41:12,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:41:12,264 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-11-09 06:41:12,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:41:12,264 INFO L85 PathProgramCache]: Analyzing trace with hash 128194696, now seen corresponding path program 14 times [2024-11-09 06:41:12,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:41:12,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628435794] [2024-11-09 06:41:12,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:41:12,265 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 06:41:12,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:41:12,266 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 06:41:12,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ef260f-c93a-4504-af1d-5d6587b345e8/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 (50)] Waiting until timeout for monitored process [2024-11-09 06:41:12,945 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:41:12,945 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:41:12,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-09 06:41:12,961 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:41:13,048 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:41:13,049 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:41:13,050 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:41:13,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-11-09 06:41:13,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2024-11-09 06:41:14,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 92 [2024-11-09 06:41:14,689 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:41:14,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 124 [2024-11-09 06:41:14,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 82 [2024-11-09 06:41:14,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:41:14,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:41:14,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:41:14,980 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:41:14,980 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:41:14,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 273 [2024-11-09 06:41:15,178 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 06:41:15,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 281 treesize of output 274 [2024-11-09 06:41:15,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:41:15,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 333 treesize of output 285 [2024-11-09 06:41:15,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:41:15,645 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:41:15,645 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:41:15,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628435794] [2024-11-09 06:41:15,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628435794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:41:15,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:41:15,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-09 06:41:15,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618180211] [2024-11-09 06:41:15,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:41:15,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 06:41:15,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:41:15,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 06:41:15,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:41:15,647 INFO L87 Difference]: Start difference. First operand 477 states and 997 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:41:24,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:27,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:29,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:31,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:33,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]