./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW --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 1d936eafcc314e66bb4cd572754c58bf1f2fc59d35c83764f43dae769bce220a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-17 22:43:18,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 22:43:18,404 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2023-11-17 22:43:18,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-17 22:43:18,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-17 22:43:18,460 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 22:43:18,461 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-17 22:43:18,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-17 22:43:18,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 22:43:18,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 22:43:18,469 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 22:43:18,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 22:43:18,470 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 22:43:18,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 22:43:18,472 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 22:43:18,473 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 22:43:18,473 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 22:43:18,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 22:43:18,474 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-17 22:43:18,474 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-17 22:43:18,475 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-17 22:43:18,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 22:43:18,476 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-17 22:43:18,476 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-17 22:43:18,477 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 22:43:18,477 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 22:43:18,478 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 22:43:18,479 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 22:43:18,479 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 22:43:18,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:43:18,480 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 22:43:18,480 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 22:43:18,481 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 22:43:18,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 22:43:18,481 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-17 22:43:18,481 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-17 22:43:18,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-17 22:43:18,482 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-17 22:43:18,482 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-17 22:43:18,482 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_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d936eafcc314e66bb4cd572754c58bf1f2fc59d35c83764f43dae769bce220a [2023-11-17 22:43:18,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 22:43:18,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 22:43:18,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 22:43:18,789 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 22:43:18,790 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 22:43:18,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/../../sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c [2023-11-17 22:43:22,100 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 22:43:22,424 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 22:43:22,425 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c [2023-11-17 22:43:22,439 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/data/999e506b1/f9a074df9f1c40018a33be42436c6dcc/FLAGd466dff58 [2023-11-17 22:43:22,457 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/data/999e506b1/f9a074df9f1c40018a33be42436c6dcc [2023-11-17 22:43:22,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 22:43:22,462 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-17 22:43:22,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 22:43:22,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 22:43:22,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 22:43:22,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:43:22" (1/1) ... [2023-11-17 22:43:22,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd54ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:22, skipping insertion in model container [2023-11-17 22:43:22,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:43:22" (1/1) ... [2023-11-17 22:43:22,499 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 22:43:22,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:43:22,837 ERROR L324 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) [2023-11-17 22:43:22,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b46fe69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:22, skipping insertion in model container [2023-11-17 22:43:22,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 22:43:22,838 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-17 22:43:22,840 INFO L158 Benchmark]: Toolchain (without parser) took 378.00ms. Allocated memory is still 165.7MB. Free memory was 135.7MB in the beginning and 125.8MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-17 22:43:22,841 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-17 22:43:22,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.16ms. Allocated memory is still 165.7MB. Free memory was 135.6MB in the beginning and 125.8MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-17 22:43:22,843 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.16ms. Allocated memory is still 165.7MB. Free memory was 135.6MB in the beginning and 125.8MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 104]: 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_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW --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 1d936eafcc314e66bb4cd572754c58bf1f2fc59d35c83764f43dae769bce220a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-17 22:43:25,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 22:43:25,669 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2023-11-17 22:43:25,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-17 22:43:25,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-17 22:43:25,759 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 22:43:25,760 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-17 22:43:25,761 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-17 22:43:25,762 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 22:43:25,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 22:43:25,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 22:43:25,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 22:43:25,771 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 22:43:25,773 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 22:43:25,774 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 22:43:25,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 22:43:25,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 22:43:25,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 22:43:25,776 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-17 22:43:25,777 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-17 22:43:25,777 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-17 22:43:25,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 22:43:25,778 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-17 22:43:25,779 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-17 22:43:25,780 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-17 22:43:25,780 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-17 22:43:25,781 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 22:43:25,781 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 22:43:25,782 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 22:43:25,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 22:43:25,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 22:43:25,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:43:25,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 22:43:25,786 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 22:43:25,786 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-17 22:43:25,787 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-17 22:43:25,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-17 22:43:25,787 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-17 22:43:25,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-17 22:43:25,789 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-17 22:43:25,789 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-17 22:43:25,790 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-17 22:43:25,790 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d936eafcc314e66bb4cd572754c58bf1f2fc59d35c83764f43dae769bce220a [2023-11-17 22:43:26,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 22:43:26,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 22:43:26,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 22:43:26,297 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 22:43:26,298 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 22:43:26,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/../../sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c [2023-11-17 22:43:29,912 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 22:43:30,299 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 22:43:30,300 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/sv-benchmarks/c/weaver/popl20-more-array-sum-alt2.wvr.c [2023-11-17 22:43:30,309 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/data/5447137c5/1070832644374a298158eacaeeca06e0/FLAG4df655f77 [2023-11-17 22:43:30,327 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/data/5447137c5/1070832644374a298158eacaeeca06e0 [2023-11-17 22:43:30,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 22:43:30,331 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-17 22:43:30,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 22:43:30,333 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 22:43:30,339 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 22:43:30,340 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:43:30" (1/1) ... [2023-11-17 22:43:30,341 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@acce8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:30, skipping insertion in model container [2023-11-17 22:43:30,342 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:43:30" (1/1) ... [2023-11-17 22:43:30,373 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 22:43:30,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:43:30,677 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-17 22:43:30,691 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 22:43:30,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:43:30,750 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 22:43:30,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:43:30,822 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:43:30,825 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:43:30,834 INFO L206 MainTranslator]: Completed translation [2023-11-17 22:43:30,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:30 WrapperNode [2023-11-17 22:43:30,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 22:43:30,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 22:43:30,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 22:43:30,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 22:43:30,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:30" (1/1) ... [2023-11-17 22:43:30,882 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:30" (1/1) ... [2023-11-17 22:43:30,935 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 196 [2023-11-17 22:43:30,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 22:43:30,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 22:43:30,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 22:43:30,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 22:43:30,950 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:30" (1/1) ... [2023-11-17 22:43:30,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:30" (1/1) ... [2023-11-17 22:43:30,979 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:30" (1/1) ... [2023-11-17 22:43:30,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:30" (1/1) ... [2023-11-17 22:43:31,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:30" (1/1) ... [2023-11-17 22:43:31,006 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:30" (1/1) ... [2023-11-17 22:43:31,015 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:30" (1/1) ... [2023-11-17 22:43:31,026 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:30" (1/1) ... [2023-11-17 22:43:31,030 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 22:43:31,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 22:43:31,034 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 22:43:31,034 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 22:43:31,035 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:30" (1/1) ... [2023-11-17 22:43:31,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:43:31,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:43:31,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 22:43:31,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 22:43:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 22:43:31,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-17 22:43:31,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 22:43:31,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-17 22:43:31,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-17 22:43:31,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-17 22:43:31,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-17 22:43:31,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-17 22:43:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-17 22:43:31,240 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-17 22:43:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 22:43:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 22:43:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 22:43:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 22:43:31,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 22:43:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 22:43:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-17 22:43:31,245 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 22:43:31,451 INFO L236 CfgBuilder]: Building ICFG [2023-11-17 22:43:31,454 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 22:43:32,117 INFO L277 CfgBuilder]: Performing block encoding [2023-11-17 22:43:32,496 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 22:43:32,497 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-17 22:43:32,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:43:32 BoogieIcfgContainer [2023-11-17 22:43:32,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 22:43:32,507 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 22:43:32,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 22:43:32,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 22:43:32,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 10:43:30" (1/3) ... [2023-11-17 22:43:32,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4484c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:43:32, skipping insertion in model container [2023-11-17 22:43:32,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:43:30" (2/3) ... [2023-11-17 22:43:32,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4484c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:43:32, skipping insertion in model container [2023-11-17 22:43:32,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:43:32" (3/3) ... [2023-11-17 22:43:32,513 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum-alt2.wvr.c [2023-11-17 22:43:32,534 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 22:43:32,534 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-17 22:43:32,534 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 22:43:32,640 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-17 22:43:32,706 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:43:32,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 22:43:32,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:43:32,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 22:43:32,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-17 22:43:32,768 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 22:43:32,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork0 ======== [2023-11-17 22:43:32,791 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@78e59377, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:43:32,791 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-17 22:43:33,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-11-17 22:43:33,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:43:33,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1399020797, now seen corresponding path program 1 times [2023-11-17 22:43:33,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-17 22:43:33,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982593203] [2023-11-17 22:43:33,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:43:33,352 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-17 22:43:33,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat [2023-11-17 22:43:33,383 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-17 22:43:33,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-17 22:43:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:43:33,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-17 22:43:33,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:43:33,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:43:33,602 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:43:33,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-17 22:43:33,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982593203] [2023-11-17 22:43:33,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1982593203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:43:33,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:43:33,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 22:43:33,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397626468] [2023-11-17 22:43:33,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:43:33,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 22:43:33,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-17 22:43:33,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 22:43:33,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 22:43:33,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:33,663 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:43:33,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 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) [2023-11-17 22:43:33,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:33,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:33,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-17 22:43:33,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-17 22:43:33,941 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-11-17 22:43:33,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:43:33,942 INFO L85 PathProgramCache]: Analyzing trace with hash -48300430, now seen corresponding path program 1 times [2023-11-17 22:43:33,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-17 22:43:33,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911026239] [2023-11-17 22:43:33,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:43:33,943 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-17 22:43:33,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat [2023-11-17 22:43:33,944 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-17 22:43:33,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-17 22:43:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:43:34,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-17 22:43:34,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:43:34,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-17 22:43:34,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:43:34,271 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:43:34,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-17 22:43:34,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911026239] [2023-11-17 22:43:34,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911026239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:43:34,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:43:34,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 22:43:34,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591773946] [2023-11-17 22:43:34,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:43:34,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 22:43:34,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-17 22:43:34,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 22:43:34,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-17 22:43:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:34,278 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:43:34,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 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) [2023-11-17 22:43:34,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:34,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:34,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:34,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:43:34,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-17 22:43:35,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-17 22:43:35,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-11-17 22:43:35,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:43:35,041 INFO L85 PathProgramCache]: Analyzing trace with hash -48300429, now seen corresponding path program 1 times [2023-11-17 22:43:35,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-17 22:43:35,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272125464] [2023-11-17 22:43:35,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:43:35,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-17 22:43:35,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat [2023-11-17 22:43:35,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-17 22:43:35,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-17 22:43:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:43:35,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-17 22:43:35,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:43:35,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-17 22:43:37,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:43:37,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:43:37,612 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-17 22:43:37,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272125464] [2023-11-17 22:43:37,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272125464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:43:37,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:43:37,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-17 22:43:37,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225969244] [2023-11-17 22:43:37,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:43:37,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-17 22:43:37,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-17 22:43:37,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-17 22:43:37,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-11-17 22:43:37,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:37,618 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:43:37,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.736842105263158) internal successors, (71), 20 states have internal predecessors, (71), 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) [2023-11-17 22:43:37,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:37,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:43:37,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:41,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:41,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:43:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-17 22:43:41,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-17 22:43:41,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-17 22:43:41,382 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-11-17 22:43:41,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:43:41,383 INFO L85 PathProgramCache]: Analyzing trace with hash -549346824, now seen corresponding path program 1 times [2023-11-17 22:43:41,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-17 22:43:41,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875651837] [2023-11-17 22:43:41,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:43:41,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-17 22:43:41,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat [2023-11-17 22:43:41,386 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-17 22:43:41,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-17 22:43:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:43:41,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-17 22:43:41,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:43:41,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-17 22:43:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:43:42,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:43:42,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-17 22:43:42,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875651837] [2023-11-17 22:43:42,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875651837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:43:42,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:43:42,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-17 22:43:42,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377813702] [2023-11-17 22:43:42,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:43:42,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-17 22:43:42,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-17 22:43:42,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-17 22:43:42,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-11-17 22:43:42,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:42,929 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:43:42,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 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) [2023-11-17 22:43:42,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:42,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:43:42,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-11-17 22:43:42,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:43,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:43,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:43:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-17 22:43:43,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:43:43,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-17 22:43:44,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-17 22:43:44,161 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-11-17 22:43:44,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:43:44,162 INFO L85 PathProgramCache]: Analyzing trace with hash -282946727, now seen corresponding path program 1 times [2023-11-17 22:43:44,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-17 22:43:44,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24927486] [2023-11-17 22:43:44,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:43:44,164 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-17 22:43:44,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat [2023-11-17 22:43:44,165 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-17 22:43:44,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-17 22:43:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:43:44,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-17 22:43:44,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:43:44,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-17 22:43:46,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 22:43:46,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:43:51,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 22:43:51,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-17 22:43:51,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24927486] [2023-11-17 22:43:51,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [24927486] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:43:51,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-17 22:43:51,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 42 [2023-11-17 22:43:51,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936831983] [2023-11-17 22:43:51,726 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-17 22:43:51,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-11-17 22:43:51,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-17 22:43:51,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-11-17 22:43:51,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1630, Unknown=0, NotChecked=0, Total=1806 [2023-11-17 22:43:51,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:51,732 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:43:51,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 3.4047619047619047) internal successors, (143), 43 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) [2023-11-17 22:43:51,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:43:51,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:43:51,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-11-17 22:43:51,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:43:51,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:44:03,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:44:03,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:44:03,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-17 22:44:03,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:44:03,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:44:03,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-17 22:44:03,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-17 22:44:03,939 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-11-17 22:44:03,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:44:03,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1839950087, now seen corresponding path program 2 times [2023-11-17 22:44:03,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-17 22:44:03,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803881037] [2023-11-17 22:44:03,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 22:44:03,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-17 22:44:03,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat [2023-11-17 22:44:03,943 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-17 22:44:03,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3307711c-d9f7-4c60-a2e1-603a659bb2b3/bin/ugemcutter-verify-ztSkJzofpW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-17 22:44:04,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 22:44:04,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:44:04,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-17 22:44:04,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:44:04,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-17 22:44:05,695 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-17 22:44:05,696 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:44:11,656 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:44:11,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-17 22:44:11,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803881037] [2023-11-17 22:44:11,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803881037] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:44:11,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-17 22:44:11,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21] total 40 [2023-11-17 22:44:11,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000968401] [2023-11-17 22:44:11,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-17 22:44:11,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-17 22:44:11,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-17 22:44:11,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-17 22:44:11,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1404, Unknown=0, NotChecked=0, Total=1560 [2023-11-17 22:44:11,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:44:11,663 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:44:11,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.875) internal successors, (155), 40 states have internal predecessors, (155), 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) [2023-11-17 22:44:11,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:44:11,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-17 22:44:11,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-11-17 22:44:11,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-17 22:44:11,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2023-11-17 22:44:11,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.