./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 12:22:22,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:22:22,683 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2024-11-08 12:22:22,688 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:22:22,689 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:22:22,712 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:22:22,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:22:22,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:22:22,716 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:22:22,716 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:22:22,717 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:22:22,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:22:22,718 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:22:22,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:22:22,721 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:22:22,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 12:22:22,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:22:22,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:22:22,725 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 12:22:22,726 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 12:22:22,726 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 12:22:22,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:22:22,731 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 12:22:22,732 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:22:22,732 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 12:22:22,732 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:22:22,732 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:22:22,733 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:22:22,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:22:22,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:22:22,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:22:22,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-08 12:22:22,736 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:22:22,736 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:22:22,737 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 12:22:22,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 12:22:22,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:22:22,738 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-11-08 12:22:22,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-08 12:22:22,739 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-08 12:22:22,739 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-08 12:22:22,739 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_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2024-11-08 12:22:23,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:22:23,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:22:23,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:22:23,039 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:22:23,040 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:22:23,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i Unable to find full path for "g++" [2024-11-08 12:22:25,280 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:22:25,728 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:22:25,728 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-08 12:22:25,762 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/data/3805a23e7/c80f05d2208c460f8dccbcac2de63ed5/FLAG3a01a4e55 [2024-11-08 12:22:25,903 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/data/3805a23e7/c80f05d2208c460f8dccbcac2de63ed5 [2024-11-08 12:22:25,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:22:25,911 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:22:25,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:22:25,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:22:25,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:22:25,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:22:25" (1/1) ... [2024-11-08 12:22:25,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4460e434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:25, skipping insertion in model container [2024-11-08 12:22:25,925 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:22:25" (1/1) ... [2024-11-08 12:22:25,999 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:22:26,659 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:26,661 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:26,662 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:26,664 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:26,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:22:26,816 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) [2024-11-08 12:22:26,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f15cb7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:26, skipping insertion in model container [2024-11-08 12:22:26,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:22:26,819 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-08 12:22:26,821 INFO L158 Benchmark]: Toolchain (without parser) took 908.48ms. Allocated memory is still 186.6MB. Free memory was 151.6MB in the beginning and 131.2MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 12:22:26,823 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:22:26,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 905.91ms. Allocated memory is still 186.6MB. Free memory was 151.6MB in the beginning and 131.2MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 12:22:26,826 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 905.91ms. Allocated memory is still 186.6MB. Free memory was 151.6MB in the beginning and 131.2MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1044]: 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 12:22:29,597 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:22:29,692 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2024-11-08 12:22:29,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:22:29,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:22:29,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:22:29,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:22:29,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:22:29,742 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:22:29,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:22:29,744 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:22:29,744 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:22:29,745 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:22:29,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:22:29,747 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:22:29,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 12:22:29,748 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:22:29,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:22:29,749 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 12:22:29,749 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 12:22:29,750 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 12:22:29,753 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:22:29,754 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 12:22:29,754 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 12:22:29,754 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:22:29,755 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 12:22:29,755 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 12:22:29,755 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:22:29,755 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:22:29,756 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:22:29,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:22:29,756 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:22:29,757 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:22:29,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-08 12:22:29,759 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:22:29,759 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:22:29,760 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 12:22:29,760 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 12:22:29,761 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:22:29,761 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-11-08 12:22:29,761 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-08 12:22:29,762 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-08 12:22:29,763 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-08 12:22:29,776 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_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2024-11-08 12:22:30,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:22:30,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:22:30,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:22:30,270 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:22:30,271 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:22:30,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i Unable to find full path for "g++" [2024-11-08 12:22:32,293 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:22:32,761 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:22:32,764 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-08 12:22:32,788 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/data/207e93ef0/2701e788aae94bdea42f59a03682bbfc/FLAG7bb076260 [2024-11-08 12:22:32,896 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/data/207e93ef0/2701e788aae94bdea42f59a03682bbfc [2024-11-08 12:22:32,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:22:32,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:22:32,903 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:22:32,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:22:32,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:22:32,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:22:32" (1/1) ... [2024-11-08 12:22:32,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e3196e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:32, skipping insertion in model container [2024-11-08 12:22:32,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:22:32" (1/1) ... [2024-11-08 12:22:32,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:22:33,670 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:33,671 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:33,671 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:33,672 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:33,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:22:33,857 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-08 12:22:33,885 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:22:33,941 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:33,943 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:33,947 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:33,947 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:33,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:22:34,003 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:22:34,050 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:34,050 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:34,051 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:34,052 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 12:22:34,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:22:34,258 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:22:34,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:34 WrapperNode [2024-11-08 12:22:34,264 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:22:34,266 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:22:34,267 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:22:34,267 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:22:34,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:34" (1/1) ... [2024-11-08 12:22:34,303 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:34" (1/1) ... [2024-11-08 12:22:34,346 INFO L138 Inliner]: procedures = 284, calls = 143, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 375 [2024-11-08 12:22:34,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:22:34,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:22:34,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:22:34,347 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:22:34,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:34" (1/1) ... [2024-11-08 12:22:34,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:34" (1/1) ... [2024-11-08 12:22:34,375 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:34" (1/1) ... [2024-11-08 12:22:34,378 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:34" (1/1) ... [2024-11-08 12:22:34,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:34" (1/1) ... [2024-11-08 12:22:34,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:34" (1/1) ... [2024-11-08 12:22:34,431 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:34" (1/1) ... [2024-11-08 12:22:34,434 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:34" (1/1) ... [2024-11-08 12:22:34,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:22:34,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:22:34,440 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:22:34,441 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:22:34,442 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:34" (1/1) ... [2024-11-08 12:22:34,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-08 12:22:34,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:34,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-08 12:22:34,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-08 12:22:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-08 12:22:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:22:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 12:22:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-08 12:22:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-08 12:22:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:22:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-08 12:22:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-08 12:22:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 12:22:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-08 12:22:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 12:22:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-08 12:22:34,524 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-08 12:22:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 12:22:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 12:22:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:22:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 12:22:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:22:34,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:22:34,528 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 12:22:34,775 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:22:34,777 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:22:36,145 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 12:22:36,145 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:22:38,223 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:22:38,225 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-08 12:22:38,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:22:38 BoogieIcfgContainer [2024-11-08 12:22:38,226 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:22:38,229 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:22:38,230 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:22:38,234 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:22:38,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:22:32" (1/3) ... [2024-11-08 12:22:38,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41126802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:22:38, skipping insertion in model container [2024-11-08 12:22:38,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:22:34" (2/3) ... [2024-11-08 12:22:38,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41126802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:22:38, skipping insertion in model container [2024-11-08 12:22:38,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:22:38" (3/3) ... [2024-11-08 12:22:38,240 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2024-11-08 12:22:38,260 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:22:38,261 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 59 error locations. [2024-11-08 12:22:38,261 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 12:22:38,494 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 12:22:38,571 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:22:38,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-08 12:22:38,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:38,574 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-08 12:22:38,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-08 12:22:38,624 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-08 12:22:38,637 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of1ForFork1 ======== [2024-11-08 12:22:38,644 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=PARTIAL_ORDER_FA, 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;@74fb57e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:22:38,644 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-08 12:22:39,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-11-08 12:22:39,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-11-08 12:22:39,242 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:22:39,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:22:39,248 INFO L85 PathProgramCache]: Analyzing trace with hash 699212905, now seen corresponding path program 1 times [2024-11-08 12:22:39,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:22:39,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [190733712] [2024-11-08 12:22:39,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:22:39,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:39,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:39,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:22:39,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 12:22:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:22:39,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 12:22:39,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:22:39,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:22:39,704 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:22:39,705 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:22:39,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190733712] [2024-11-08 12:22:39,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190733712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:22:39,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:22:39,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 12:22:39,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503073768] [2024-11-08 12:22:39,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:22:39,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 12:22:39,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:22:39,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 12:22:39,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 12:22:39,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:39,751 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:22:39,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) 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) [2024-11-08 12:22:39,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:39,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2024-11-08 12:22:39,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2024-11-08 12:22:39,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2024-11-08 12:22:39,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2024-11-08 12:22:40,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:40,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 12:22:40,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:40,334 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:22:40,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:22:40,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1215267970, now seen corresponding path program 1 times [2024-11-08 12:22:40,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:22:40,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [104486546] [2024-11-08 12:22:40,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:22:40,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:40,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:40,339 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:22:40,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 12:22:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:22:40,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 12:22:40,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:22:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 12:22:40,736 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:22:40,737 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:22:40,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104486546] [2024-11-08 12:22:40,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104486546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:22:40,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:22:40,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:22:40,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827592256] [2024-11-08 12:22:40,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:22:40,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 12:22:40,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:22:40,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 12:22:40,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 12:22:40,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:40,742 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:22:40,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 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) [2024-11-08 12:22:40,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:40,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:40,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:40,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:40,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 12:22:41,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:41,122 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:22:41,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:22:41,123 INFO L85 PathProgramCache]: Analyzing trace with hash 338234744, now seen corresponding path program 1 times [2024-11-08 12:22:41,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:22:41,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122762723] [2024-11-08 12:22:41,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:22:41,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:41,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:41,126 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:22:41,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 12:22:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:22:41,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 12:22:41,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:22:41,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 12:22:41,533 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:22:41,534 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:22:41,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122762723] [2024-11-08 12:22:41,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122762723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:22:41,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:22:41,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 12:22:41,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453287057] [2024-11-08 12:22:41,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:22:41,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 12:22:41,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:22:41,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 12:22:41,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 12:22:41,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:41,539 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:22:41,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-08 12:22:41,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:41,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:41,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:41,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:41,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:41,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:41,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 12:22:42,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:42,033 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:22:42,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:22:42,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1141906113, now seen corresponding path program 1 times [2024-11-08 12:22:42,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:22:42,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [905408369] [2024-11-08 12:22:42,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:22:42,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:42,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:42,038 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:22:42,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 12:22:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:22:42,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 12:22:42,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:22:42,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 12:22:42,597 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 12:22:42,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 12:22:42,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:22:42,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905408369] [2024-11-08 12:22:42,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905408369] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 12:22:42,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 12:22:42,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-08 12:22:42,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131672987] [2024-11-08 12:22:42,669 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 12:22:42,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 12:22:42,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:22:42,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 12:22:42,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 12:22:42,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:42,675 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:22:42,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2024-11-08 12:22:42,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:42,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:42,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:42,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:43,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:43,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:43,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:43,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:43,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 12:22:43,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:43,345 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:22:43,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:22:43,346 INFO L85 PathProgramCache]: Analyzing trace with hash 140599316, now seen corresponding path program 2 times [2024-11-08 12:22:43,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:22:43,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1310535481] [2024-11-08 12:22:43,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 12:22:43,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:43,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:43,354 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:22:43,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 12:22:44,194 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 12:22:44,194 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 12:22:44,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 12:22:44,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:22:44,293 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-08 12:22:44,293 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 12:22:44,342 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-08 12:22:44,343 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:22:44,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310535481] [2024-11-08 12:22:44,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310535481] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 12:22:44,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 12:22:44,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-08 12:22:44,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517233161] [2024-11-08 12:22:44,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 12:22:44,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 12:22:44,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:22:44,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 12:22:44,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 12:22:44,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:44,349 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:22:44,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2024-11-08 12:22:44,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:44,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:44,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:44,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:44,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:44,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-11-08 12:22:44,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-11-08 12:22:44,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-11-08 12:22:44,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-11-08 12:22:45,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:45,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:45,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:45,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:45,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:22:45,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2024-11-08 12:22:45,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 15 remaining) [2024-11-08 12:22:45,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 15 remaining) [2024-11-08 12:22:45,988 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 15 remaining) [2024-11-08 12:22:45,988 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2024-11-08 12:22:45,988 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2024-11-08 12:22:45,988 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2024-11-08 12:22:45,989 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2024-11-08 12:22:45,989 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2024-11-08 12:22:45,989 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2024-11-08 12:22:45,990 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2024-11-08 12:22:45,990 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 15 remaining) [2024-11-08 12:22:45,990 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 15 remaining) [2024-11-08 12:22:45,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 15 remaining) [2024-11-08 12:22:45,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr12ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2024-11-08 12:22:46,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 12:22:46,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:46,217 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-11-08 12:22:46,223 INFO L317 ceAbstractionStarter]: Result for error location t2_funThread1of1ForFork1 was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/3) [2024-11-08 12:22:46,230 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:22:46,235 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-08 12:22:46,235 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1_funThread1of1ForFork0 ======== [2024-11-08 12:22:46,236 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=PARTIAL_ORDER_FA, 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;@74fb57e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:22:46,236 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-08 12:22:46,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-11-08 12:22:46,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-11-08 12:22:46,507 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:22:46,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:22:46,511 INFO L85 PathProgramCache]: Analyzing trace with hash 50005342, now seen corresponding path program 1 times [2024-11-08 12:22:46,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:22:46,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1308365248] [2024-11-08 12:22:46,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:22:46,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:46,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:46,522 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:22:46,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 12:22:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:22:46,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 12:22:46,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:22:46,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:22:46,897 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:22:46,897 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:22:46,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308365248] [2024-11-08 12:22:46,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308365248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:22:46,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:22:46,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:22:46,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748103202] [2024-11-08 12:22:46,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:22:46,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 12:22:46,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:22:46,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 12:22:46,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 12:22:46,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:46,903 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:22:46,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-08 12:22:46,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:47,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:47,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 12:22:47,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:47,228 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:22:47,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:22:47,228 INFO L85 PathProgramCache]: Analyzing trace with hash -874379992, now seen corresponding path program 1 times [2024-11-08 12:22:47,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:22:47,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [566943710] [2024-11-08 12:22:47,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:22:47,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:47,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:47,232 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:22:47,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 12:22:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:22:47,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 12:22:47,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:22:47,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:22:47,686 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:22:47,686 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:22:47,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566943710] [2024-11-08 12:22:47,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566943710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:22:47,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:22:47,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 12:22:47,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365418378] [2024-11-08 12:22:47,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:22:47,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 12:22:47,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:22:47,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 12:22:47,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 12:22:47,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:47,691 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:22:47,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-08 12:22:47,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:47,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:47,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:47,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 12:22:48,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:48,103 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:22:48,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:22:48,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1724821695, now seen corresponding path program 1 times [2024-11-08 12:22:48,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:22:48,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [347274575] [2024-11-08 12:22:48,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:22:48,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:48,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:48,108 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:22:48,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 12:22:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:22:48,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 12:22:48,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:22:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:22:48,693 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 12:22:48,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:22:48,759 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:22:48,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347274575] [2024-11-08 12:22:48,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347274575] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 12:22:48,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 12:22:48,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-08 12:22:48,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967728608] [2024-11-08 12:22:48,761 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 12:22:48,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 12:22:48,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:22:48,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 12:22:48,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 12:22:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:48,764 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:22:48,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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) [2024-11-08 12:22:48,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:48,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:48,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:49,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:49,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:49,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:49,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 12:22:49,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:49,326 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:22:49,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:22:49,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1524291060, now seen corresponding path program 2 times [2024-11-08 12:22:49,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:22:49,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1156359726] [2024-11-08 12:22:49,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 12:22:49,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:49,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:49,329 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:22:49,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 12:22:49,872 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 12:22:49,873 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 12:22:49,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 12:22:49,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:22:50,027 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-08 12:22:50,028 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 12:22:50,146 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-08 12:22:50,146 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:22:50,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156359726] [2024-11-08 12:22:50,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156359726] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 12:22:50,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 12:22:50,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-08 12:22:50,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193878044] [2024-11-08 12:22:50,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 12:22:50,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 12:22:50,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:22:50,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 12:22:50,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 12:22:50,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:50,149 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:22:50,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-11-08 12:22:50,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:50,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:50,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:50,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:50,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:50,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:50,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:50,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:50,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 12:22:50,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:50,703 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:22:50,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:22:50,704 INFO L85 PathProgramCache]: Analyzing trace with hash -2009524970, now seen corresponding path program 3 times [2024-11-08 12:22:50,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:22:50,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1926955107] [2024-11-08 12:22:50,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 12:22:50,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:50,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:50,709 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:22:50,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 12:22:51,513 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-08 12:22:51,514 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 12:22:51,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 12:22:51,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:22:51,642 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-08 12:22:51,643 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 [2024-11-08 12:22:51,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1304 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 1203 trivial. 0 not checked. [2024-11-08 12:22:51,674 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:22:51,674 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:22:51,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926955107] [2024-11-08 12:22:51,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926955107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:22:51,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:22:51,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 12:22:51,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441011183] [2024-11-08 12:22:51,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:22:51,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 12:22:51,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:22:51,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 12:22:51,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 12:22:51,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:51,678 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:22:51,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-11-08 12:22:51,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:51,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:51,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:51,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:51,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:52,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-11-08 12:22:52,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-11-08 12:22:52,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:52,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:52,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:52,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:52,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:22:52,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-08 12:22:52,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:52,285 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:22:52,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:22:52,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2009524969, now seen corresponding path program 1 times [2024-11-08 12:22:52,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:22:52,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1608269282] [2024-11-08 12:22:52,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:22:52,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:52,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:52,290 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:22:52,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 12:22:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:22:53,605 INFO L255 TraceCheckSpWp]: Trace formula consists of 2644 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 12:22:53,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:22:53,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1304 backedges. 520 proven. 64 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2024-11-08 12:22:53,714 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 12:22:53,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1304 backedges. 520 proven. 64 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2024-11-08 12:22:53,916 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:22:53,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608269282] [2024-11-08 12:22:53,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608269282] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 12:22:53,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 12:22:53,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-08 12:22:53,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182944067] [2024-11-08 12:22:53,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 12:22:53,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 12:22:53,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:22:53,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 12:22:53,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-08 12:22:53,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:53,921 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:22:53,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 12 states have internal predecessors, (116), 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) [2024-11-08 12:22:53,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:53,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:53,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:53,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:53,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:22:53,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:22:54,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:54,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:22:54,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:54,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:22:54,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:22:54,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:22:54,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-08 12:22:55,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:55,069 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:22:55,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:22:55,070 INFO L85 PathProgramCache]: Analyzing trace with hash -382955153, now seen corresponding path program 2 times [2024-11-08 12:22:55,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:22:55,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663032704] [2024-11-08 12:22:55,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 12:22:55,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:22:55,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:22:55,074 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:22:55,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 12:22:57,709 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 12:22:57,709 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 12:22:57,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 5884 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 12:22:57,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:22:58,947 INFO L134 CoverageAnalysis]: Checked inductivity of 8000 backedges. 0 proven. 6160 refuted. 0 times theorem prover too weak. 1840 trivial. 0 not checked. [2024-11-08 12:22:58,947 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 12:23:00,140 INFO L134 CoverageAnalysis]: Checked inductivity of 8000 backedges. 0 proven. 6160 refuted. 0 times theorem prover too weak. 1840 trivial. 0 not checked. [2024-11-08 12:23:00,140 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:23:00,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663032704] [2024-11-08 12:23:00,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663032704] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 12:23:00,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 12:23:00,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-08 12:23:00,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482532243] [2024-11-08 12:23:00,141 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 12:23:00,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 12:23:00,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:23:00,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 12:23:00,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-08 12:23:00,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:23:00,145 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:23:00,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.916666666666666) internal successors, (143), 11 states have internal predecessors, (143), 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) [2024-11-08 12:23:00,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:00,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:00,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:00,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:00,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:23:00,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:00,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:23:01,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:01,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:01,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:01,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:01,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:23:01,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:01,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:01,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-08 12:23:01,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:23:01,587 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:23:01,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:23:01,588 INFO L85 PathProgramCache]: Analyzing trace with hash 517524871, now seen corresponding path program 3 times [2024-11-08 12:23:01,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:23:01,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422657953] [2024-11-08 12:23:01,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 12:23:01,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:23:01,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:23:01,595 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:23:01,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 12:23:04,642 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-08 12:23:04,642 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 12:23:04,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 12:23:04,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:23:07,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 12:23:07,623 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 18 treesize of output 13 [2024-11-08 12:23:07,635 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-08 12:23:07,635 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 [2024-11-08 12:23:08,148 INFO L134 CoverageAnalysis]: Checked inductivity of 50780 backedges. 9281 proven. 0 refuted. 0 times theorem prover too weak. 41499 trivial. 0 not checked. [2024-11-08 12:23:08,148 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:23:08,149 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:23:08,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422657953] [2024-11-08 12:23:08,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422657953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:23:08,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:23:08,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 12:23:08,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197324674] [2024-11-08 12:23:08,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:23:08,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 12:23:08,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:23:08,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 12:23:08,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 12:23:08,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:23:08,154 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:23:08,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 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) [2024-11-08 12:23:08,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:08,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:08,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:08,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:08,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:23:08,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:08,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:08,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:23:10,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-11-08 12:23:10,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-11-08 12:23:10,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:10,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:10,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:10,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:10,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:23:10,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:10,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:10,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:10,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-08 12:23:11,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:23:11,068 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:23:11,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:23:11,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1846968292, now seen corresponding path program 1 times [2024-11-08 12:23:11,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:23:11,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1001518358] [2024-11-08 12:23:11,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:23:11,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:23:11,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:23:11,076 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:23:11,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-08 12:23:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:23:18,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 14231 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 12:23:18,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:23:19,126 INFO L134 CoverageAnalysis]: Checked inductivity of 50780 backedges. 9226 proven. 460 refuted. 0 times theorem prover too weak. 41094 trivial. 0 not checked. [2024-11-08 12:23:19,127 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 12:23:19,974 INFO L134 CoverageAnalysis]: Checked inductivity of 50780 backedges. 9226 proven. 460 refuted. 0 times theorem prover too weak. 41094 trivial. 0 not checked. [2024-11-08 12:23:19,975 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:23:19,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001518358] [2024-11-08 12:23:19,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001518358] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 12:23:19,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 12:23:19,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-11-08 12:23:19,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280740452] [2024-11-08 12:23:19,976 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 12:23:19,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-08 12:23:19,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:23:19,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-08 12:23:19,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-11-08 12:23:19,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:23:19,981 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:23:19,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 10.166666666666666) internal successors, (244), 24 states have internal predecessors, (244), 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) [2024-11-08 12:23:19,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:19,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:19,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:19,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:19,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:23:19,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:19,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:19,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:19,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:23:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:23:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:24,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:24,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:24,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-08 12:23:24,329 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forcibly destroying the process [2024-11-08 12:23:24,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 137 [2024-11-08 12:23:24,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:23:24,389 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:23:24,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:23:24,390 INFO L85 PathProgramCache]: Analyzing trace with hash 719965140, now seen corresponding path program 2 times [2024-11-08 12:23:24,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:23:24,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681333344] [2024-11-08 12:23:24,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 12:23:24,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:23:24,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:23:24,419 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:23:24,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-08 12:23:43,931 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 12:23:43,931 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 12:23:45,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 30431 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 12:23:45,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:23:46,239 INFO L134 CoverageAnalysis]: Checked inductivity of 243380 backedges. 44002 proven. 2332 refuted. 0 times theorem prover too weak. 197046 trivial. 0 not checked. [2024-11-08 12:23:46,240 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 12:23:48,575 INFO L134 CoverageAnalysis]: Checked inductivity of 243380 backedges. 44002 proven. 2332 refuted. 0 times theorem prover too weak. 197046 trivial. 0 not checked. [2024-11-08 12:23:48,575 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 12:23:48,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681333344] [2024-11-08 12:23:48,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681333344] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 12:23:48,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 12:23:48,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2024-11-08 12:23:48,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824578218] [2024-11-08 12:23:48,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 12:23:48,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-08 12:23:48,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 12:23:48,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-08 12:23:48,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=1754, Unknown=0, NotChecked=0, Total=2256 [2024-11-08 12:23:48,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:23:48,584 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-08 12:23:48,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 10.083333333333334) internal successors, (484), 48 states have internal predecessors, (484), 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) [2024-11-08 12:23:48,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:48,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:48,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:48,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:48,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:23:48,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:48,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:48,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:48,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-11-08 12:23:48,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:23:58,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:58,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:23:58,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:58,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 12:23:58,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:23:58,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:58,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:58,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:23:58,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-08 12:23:58,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-08 12:23:59,037 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forcibly destroying the process [2024-11-08 12:23:59,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 137 [2024-11-08 12:23:59,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:23:59,185 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t1_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-08 12:23:59,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:23:59,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1200962652, now seen corresponding path program 3 times [2024-11-08 12:23:59,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 12:23:59,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1085827872] [2024-11-08 12:23:59,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 12:23:59,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 12:23:59,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 [2024-11-08 12:23:59,216 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 12:23:59,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_104462f5-a5b8-4f88-85d1-75cdb48a83a4/bin/ugemcutter-verify-v6A4Riy6iL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process