./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/test-context1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/test-context1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i --witnessprinter.witness.filename witness.graphml --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 a6c10414fe2617d00008bf9d366bc6ac1618cf93ea0f6ae08bc6c5a126364bce --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 14:08:41,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 14:08:41,309 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2023-11-06 14:08:41,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 14:08:41,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 14:08:41,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 14:08:41,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 14:08:41,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 14:08:41,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 14:08:41,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 14:08:41,389 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 14:08:41,390 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 14:08:41,391 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 14:08:41,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 14:08:41,393 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 14:08:41,393 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 14:08:41,394 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 14:08:41,394 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 14:08:41,395 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 14:08:41,395 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 14:08:41,395 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 14:08:41,396 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 14:08:41,396 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 14:08:41,397 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 14:08:41,397 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 14:08:41,398 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 14:08:41,399 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 14:08:41,399 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 14:08:41,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 14:08:41,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 14:08:41,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 14:08:41,402 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 14:08:41,402 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 14:08:41,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 14:08:41,402 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-06 14:08:41,403 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-06 14:08:41,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-06 14:08:41,403 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-06 14:08:41,404 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-06 14:08:41,404 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_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6c10414fe2617d00008bf9d366bc6ac1618cf93ea0f6ae08bc6c5a126364bce [2023-11-06 14:08:41,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 14:08:41,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 14:08:41,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 14:08:41,724 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 14:08:41,725 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 14:08:41,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/../../sv-benchmarks/c/weaver/test-context1.wvr.c [2023-11-06 14:08:44,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 14:08:45,038 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 14:08:45,038 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/sv-benchmarks/c/weaver/test-context1.wvr.c [2023-11-06 14:08:45,048 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/data/668aa76e1/9d537a263e8347baa2add3bd593abc2d/FLAG23b7724bd [2023-11-06 14:08:45,074 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/data/668aa76e1/9d537a263e8347baa2add3bd593abc2d [2023-11-06 14:08:45,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 14:08:45,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 14:08:45,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 14:08:45,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 14:08:45,094 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 14:08:45,095 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:08:45" (1/1) ... [2023-11-06 14:08:45,096 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470b7462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:45, skipping insertion in model container [2023-11-06 14:08:45,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:08:45" (1/1) ... [2023-11-06 14:08:45,125 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 14:08:45,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 14:08:45,384 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) [2023-11-06 14:08:45,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@77d7d602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:45, skipping insertion in model container [2023-11-06 14:08:45,386 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 14:08:45,386 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 14:08:45,389 INFO L158 Benchmark]: Toolchain (without parser) took 304.05ms. Allocated memory is still 159.4MB. Free memory was 121.7MB in the beginning and 111.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 14:08:45,389 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 14:08:45,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.67ms. Allocated memory is still 159.4MB. Free memory was 121.7MB in the beginning and 111.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 14:08:45,392 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.67ms. Allocated memory is still 159.4MB. Free memory was 121.7MB in the beginning and 111.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 94]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/test-context1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i --witnessprinter.witness.filename witness.graphml --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 a6c10414fe2617d00008bf9d366bc6ac1618cf93ea0f6ae08bc6c5a126364bce --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 14:08:47,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 14:08:47,969 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2023-11-06 14:08:47,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 14:08:47,977 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 14:08:48,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 14:08:48,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 14:08:48,006 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 14:08:48,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 14:08:48,008 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 14:08:48,009 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 14:08:48,009 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 14:08:48,010 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 14:08:48,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 14:08:48,011 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 14:08:48,012 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 14:08:48,013 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 14:08:48,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 14:08:48,014 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 14:08:48,015 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 14:08:48,015 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 14:08:48,016 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 14:08:48,017 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 14:08:48,017 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 14:08:48,018 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 14:08:48,019 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 14:08:48,019 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 14:08:48,020 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 14:08:48,021 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 14:08:48,021 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 14:08:48,022 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 14:08:48,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 14:08:48,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 14:08:48,023 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 14:08:48,024 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 14:08:48,024 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 14:08:48,025 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-06 14:08:48,025 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-06 14:08:48,025 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-06 14:08:48,026 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-06 14:08:48,026 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-06 14:08:48,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 14:08:48,027 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_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6c10414fe2617d00008bf9d366bc6ac1618cf93ea0f6ae08bc6c5a126364bce [2023-11-06 14:08:48,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 14:08:48,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 14:08:48,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 14:08:48,486 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 14:08:48,487 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 14:08:48,488 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/../../sv-benchmarks/c/weaver/test-context1.wvr.c [2023-11-06 14:08:51,708 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 14:08:51,957 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 14:08:51,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/sv-benchmarks/c/weaver/test-context1.wvr.c [2023-11-06 14:08:51,966 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/data/95ed2a7cb/98803e348a924249993701a7a883feb0/FLAGd620e39eb [2023-11-06 14:08:51,981 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/data/95ed2a7cb/98803e348a924249993701a7a883feb0 [2023-11-06 14:08:51,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 14:08:51,986 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 14:08:51,987 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 14:08:51,987 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 14:08:51,993 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 14:08:51,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:08:51" (1/1) ... [2023-11-06 14:08:51,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ddf506c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:51, skipping insertion in model container [2023-11-06 14:08:51,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:08:51" (1/1) ... [2023-11-06 14:08:52,021 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 14:08:52,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 14:08:52,303 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 14:08:52,318 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 14:08:52,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 14:08:52,368 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 14:08:52,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 14:08:52,441 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 14:08:52,444 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 14:08:52,453 INFO L206 MainTranslator]: Completed translation [2023-11-06 14:08:52,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:52 WrapperNode [2023-11-06 14:08:52,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 14:08:52,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 14:08:52,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 14:08:52,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 14:08:52,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:52" (1/1) ... [2023-11-06 14:08:52,489 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:52" (1/1) ... [2023-11-06 14:08:52,532 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 135 [2023-11-06 14:08:52,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 14:08:52,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 14:08:52,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 14:08:52,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 14:08:52,545 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:52" (1/1) ... [2023-11-06 14:08:52,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:52" (1/1) ... [2023-11-06 14:08:52,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:52" (1/1) ... [2023-11-06 14:08:52,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:52" (1/1) ... [2023-11-06 14:08:52,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:52" (1/1) ... [2023-11-06 14:08:52,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:52" (1/1) ... [2023-11-06 14:08:52,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:52" (1/1) ... [2023-11-06 14:08:52,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:52" (1/1) ... [2023-11-06 14:08:52,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 14:08:52,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 14:08:52,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 14:08:52,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 14:08:52,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:52" (1/1) ... [2023-11-06 14:08:52,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 14:08:52,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:52,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 14:08:52,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 14:08:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 14:08:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 14:08:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 14:08:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 14:08:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 14:08:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 14:08:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 14:08:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 14:08:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 14:08:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 14:08:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 14:08:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 14:08:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 14:08:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 14:08:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 14:08:52,710 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 14:08:52,876 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 14:08:52,878 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 14:08:53,371 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 14:08:53,497 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 14:08:53,500 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 14:08:53,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:08:53 BoogieIcfgContainer [2023-11-06 14:08:53,503 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 14:08:53,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 14:08:53,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 14:08:53,511 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 14:08:53,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 02:08:51" (1/3) ... [2023-11-06 14:08:53,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7007e58b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:08:53, skipping insertion in model container [2023-11-06 14:08:53,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:08:52" (2/3) ... [2023-11-06 14:08:53,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7007e58b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:08:53, skipping insertion in model container [2023-11-06 14:08:53,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:08:53" (3/3) ... [2023-11-06 14:08:53,516 INFO L112 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2023-11-06 14:08:53,536 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 14:08:53,537 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-06 14:08:53,537 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 14:08:53,633 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 14:08:53,685 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 14:08:53,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-06 14:08:53,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/z3 [2023-11-06 14:08:53,692 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-06 14:08:53,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-06 14:08:53,776 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-06 14:08:53,791 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork0 ======== [2023-11-06 14:08:53,799 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;@682c9a3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 14:08:53,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 14:08:54,231 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-11-06 14:08:54,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:54,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1055599392, now seen corresponding path program 1 times [2023-11-06 14:08:54,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 14:08:54,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515989012] [2023-11-06 14:08:54,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:54,261 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 [2023-11-06 14:08:54,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat [2023-11-06 14:08:54,297 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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) [2023-11-06 14:08:54,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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 [2023-11-06 14:08:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:54,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 14:08:54,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:54,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:54,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 14:08:54,483 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 14:08:54,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515989012] [2023-11-06 14:08:54,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515989012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:54,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:54,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 14:08:54,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667850760] [2023-11-06 14:08:54,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:54,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 14:08:54,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 14:08:54,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 14:08:54,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 14:08:54,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:54,526 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:54,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-11-06 14:08:54,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:54,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:54,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:54,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:54,869 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-11-06 14:08:54,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:54,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1048570783, now seen corresponding path program 1 times [2023-11-06 14:08:54,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 14:08:54,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082410219] [2023-11-06 14:08:54,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:54,871 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 [2023-11-06 14:08:54,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat [2023-11-06 14:08:54,873 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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) [2023-11-06 14:08:54,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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 [2023-11-06 14:08:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:55,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 14:08:55,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:55,053 INFO L351 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 [2023-11-06 14:08:55,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:55,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 14:08:55,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 14:08:55,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082410219] [2023-11-06 14:08:55,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082410219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:55,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:55,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 14:08:55,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367604468] [2023-11-06 14:08:55,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:55,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 14:08:55,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 14:08:55,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 14:08:55,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 14:08:55,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:55,210 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:55,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 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) [2023-11-06 14:08:55,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:55,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:55,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:55,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 14:08:55,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:55,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:55,876 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-11-06 14:08:55,877 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:55,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1048570782, now seen corresponding path program 1 times [2023-11-06 14:08:55,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 14:08:55,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233295381] [2023-11-06 14:08:55,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:55,878 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 [2023-11-06 14:08:55,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat [2023-11-06 14:08:55,880 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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) [2023-11-06 14:08:55,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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 [2023-11-06 14:08:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:56,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 14:08:56,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:56,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 14:08:56,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 14:08:56,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 14:08:56,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233295381] [2023-11-06 14:08:56,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233295381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:56,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:56,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 14:08:56,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185618263] [2023-11-06 14:08:56,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:56,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 14:08:56,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 14:08:56,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 14:08:56,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 14:08:56,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:56,158 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:56,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 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) [2023-11-06 14:08:56,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:56,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-06 14:08:56,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:56,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:56,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 14:08:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:56,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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 [2023-11-06 14:08:56,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:56,988 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-11-06 14:08:56,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:56,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1227417642, now seen corresponding path program 1 times [2023-11-06 14:08:56,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 14:08:56,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067409000] [2023-11-06 14:08:56,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:56,989 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 [2023-11-06 14:08:56,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat [2023-11-06 14:08:56,995 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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) [2023-11-06 14:08:57,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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 [2023-11-06 14:08:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:08:57,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 14:08:57,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:57,302 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 14:08:57,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 14:08:57,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 14:08:57,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 14:08:57,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067409000] [2023-11-06 14:08:57,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067409000] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 14:08:57,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 14:08:57,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-06 14:08:57,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080216209] [2023-11-06 14:08:57,467 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 14:08:57,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 14:08:57,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 14:08:57,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 14:08:57,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 14:08:57,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:57,470 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:57,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.2) internal successors, (131), 6 states have internal predecessors, (131), 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) [2023-11-06 14:08:57,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:57,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-06 14:08:57,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:57,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:57,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:57,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 14:08:57,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:57,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:57,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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 [2023-11-06 14:08:57,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:57,835 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-11-06 14:08:57,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:57,835 INFO L85 PathProgramCache]: Analyzing trace with hash 567388483, now seen corresponding path program 2 times [2023-11-06 14:08:57,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 14:08:57,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635756272] [2023-11-06 14:08:57,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 14:08:57,837 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 [2023-11-06 14:08:57,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat [2023-11-06 14:08:57,838 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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) [2023-11-06 14:08:57,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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 [2023-11-06 14:08:57,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 14:08:57,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 14:08:57,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 14:08:57,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:08:58,598 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-06 14:08:58,599 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 14:08:58,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 14:08:58,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635756272] [2023-11-06 14:08:58,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635756272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:08:58,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:08:58,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 14:08:58,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225296067] [2023-11-06 14:08:58,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:08:58,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 14:08:58,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 14:08:58,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 14:08:58,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-06 14:08:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:58,603 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:08:58,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 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) [2023-11-06 14:08:58,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:58,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-06 14:08:58,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:58,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:58,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:59,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:08:59,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 14:08:59,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:08:59,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:08:59,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 14:08:59,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-06 14:08:59,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:59,924 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-11-06 14:08:59,924 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:08:59,924 INFO L85 PathProgramCache]: Analyzing trace with hash -88144927, now seen corresponding path program 1 times [2023-11-06 14:08:59,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 14:08:59,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056392844] [2023-11-06 14:08:59,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 14:08:59,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:08:59,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat [2023-11-06 14:08:59,927 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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) [2023-11-06 14:08:59,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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 [2023-11-06 14:09:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 14:09:00,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 14:09:00,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:09:00,808 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 14:09:00,809 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 14:09:01,030 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 39 treesize of output 35 [2023-11-06 14:09:03,703 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 14:09:03,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 14:09:03,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056392844] [2023-11-06 14:09:03,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056392844] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 14:09:03,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 14:09:03,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-11-06 14:09:03,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699544230] [2023-11-06 14:09:03,704 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 14:09:03,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-06 14:09:03,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 14:09:03,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-06 14:09:03,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2023-11-06 14:09:03,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:03,711 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:09:03,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.619047619047619) internal successors, (160), 22 states have internal predecessors, (160), 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) [2023-11-06 14:09:03,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:03,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-06 14:09:03,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:09:03,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:09:03,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-06 14:09:03,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:10,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 14:09:10,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:10,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 14:09:10,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:09:10,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:09:10,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 14:09:10,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 14:09:10,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-06 14:09:10,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 14:09:10,331 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-11-06 14:09:10,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 14:09:10,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1325193695, now seen corresponding path program 2 times [2023-11-06 14:09:10,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 14:09:10,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395454407] [2023-11-06 14:09:10,333 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 14:09:10,333 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 [2023-11-06 14:09:10,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat [2023-11-06 14:09:10,335 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -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) [2023-11-06 14:09:10,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0096557d-8762-4ac1-86a1-e6b3c1102b0c/bin/ugemcutter-verify-t8buoWUS1i/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-06 14:09:10,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 14:09:10,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 14:09:10,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-06 14:09:10,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 14:09:10,876 INFO L351 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 [2023-11-06 14:09:11,797 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-06 14:09:11,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 14:09:11,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 14:09:11,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395454407] [2023-11-06 14:09:11,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395454407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 14:09:11,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 14:09:11,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-06 14:09:11,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279240589] [2023-11-06 14:09:11,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 14:09:11,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-06 14:09:11,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 14:09:11,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-06 14:09:11,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-06 14:09:11,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:11,801 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-06 14:09:11,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.5) internal successors, (77), 15 states have internal predecessors, (77), 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) [2023-11-06 14:09:11,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-06 14:09:11,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-06 14:09:11,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-06 14:09:11,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-06 14:09:11,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-06 14:09:11,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-06 14:09:11,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.