./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing-deref.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX --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 dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 09:39:53,398 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 09:39:53,455 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2024-12-05 09:39:53,460 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 09:39:53,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-05 09:39:53,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 09:39:53,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-05 09:39:53,480 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-05 09:39:53,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 09:39:53,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-05 09:39:53,481 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 09:39:53,481 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 09:39:53,481 INFO L153 SettingsManager]: * Use SBE=true [2024-12-05 09:39:53,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 09:39:53,482 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 09:39:53,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 09:39:53,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 09:39:53,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 09:39:53,482 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-05 09:39:53,482 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-05 09:39:53,482 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-05 09:39:53,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 09:39:53,482 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 09:39:53,482 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 09:39:53,483 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 09:39:53,483 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 09:39:53,483 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 09:39:53,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 09:39:53,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-05 09:39:53,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-05 09:39:53,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-05 09:39:53,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 09:39:53,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 09:39:53,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 09:39:53,484 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-05 09:39:53,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 09:39:53,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-05 09:39:53,484 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-12-05 09:39:53,484 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-05 09:39:53,484 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-05 09:39:53,484 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-05 09:39:53,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX 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 -> dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 [2024-12-05 09:39:53,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 09:39:53,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 09:39:53,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 09:39:53,726 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 09:39:53,726 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 09:39:53,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/../../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing-deref.i [2024-12-05 09:39:56,402 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/data/bc598a7f2/3c872476ba3841319c87560c62370514/FLAGd062fca1d [2024-12-05 09:39:56,659 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 09:39:56,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing-deref.i [2024-12-05 09:39:56,673 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/data/bc598a7f2/3c872476ba3841319c87560c62370514/FLAGd062fca1d [2024-12-05 09:39:56,953 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/data/bc598a7f2/3c872476ba3841319c87560c62370514 [2024-12-05 09:39:56,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 09:39:56,955 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 09:39:56,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 09:39:56,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 09:39:56,959 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 09:39:56,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:39:56" (1/1) ... [2024-12-05 09:39:56,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f4c36e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:39:56, skipping insertion in model container [2024-12-05 09:39:56,960 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:39:56" (1/1) ... [2024-12-05 09:39:56,987 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 09:39:57,337 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:39:57,337 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:39:57,337 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:39:57,338 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:39:57,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 09:39:57,396 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-12-05 09:39:57,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@33f49c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:39:57, skipping insertion in model container [2024-12-05 09:39:57,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 09:39:57,396 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-12-05 09:39:57,398 INFO L158 Benchmark]: Toolchain (without parser) took 441.80ms. Allocated memory is still 142.6MB. Free memory was 115.3MB in the beginning and 98.2MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 09:39:57,398 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 09:39:57,399 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.27ms. Allocated memory is still 142.6MB. Free memory was 115.1MB in the beginning and 98.2MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 09:39:57,400 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 440.27ms. Allocated memory is still 142.6MB. Free memory was 115.1MB in the beginning and 98.2MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1051]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing-deref.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX --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 dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 09:39:59,130 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 09:39:59,206 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf [2024-12-05 09:39:59,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 09:39:59,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-05 09:39:59,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 09:39:59,232 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-05 09:39:59,232 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-05 09:39:59,233 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 09:39:59,233 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-05 09:39:59,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 09:39:59,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 09:39:59,233 INFO L153 SettingsManager]: * Use SBE=true [2024-12-05 09:39:59,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 09:39:59,234 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 09:39:59,234 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 09:39:59,234 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 09:39:59,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 09:39:59,234 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-05 09:39:59,234 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-05 09:39:59,234 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-05 09:39:59,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 09:39:59,234 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 09:39:59,234 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 09:39:59,235 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 09:39:59,235 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 09:39:59,235 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 09:39:59,235 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 09:39:59,235 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 09:39:59,235 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 09:39:59,235 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-05 09:39:59,235 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-05 09:39:59,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-05 09:39:59,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 09:39:59,236 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 09:39:59,236 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 09:39:59,236 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-05 09:39:59,236 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 09:39:59,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-05 09:39:59,236 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-12-05 09:39:59,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-05 09:39:59,236 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-05 09:39:59,236 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-05 09:39:59,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX 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 -> dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 [2024-12-05 09:39:59,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 09:39:59,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 09:39:59,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 09:39:59,473 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 09:39:59,473 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 09:39:59,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/../../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing-deref.i [2024-12-05 09:40:02,147 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/data/db4d20d2f/9245b960f061480682f1fd40933b4cb3/FLAGcb784da7c [2024-12-05 09:40:02,389 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 09:40:02,389 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing-deref.i [2024-12-05 09:40:02,402 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/data/db4d20d2f/9245b960f061480682f1fd40933b4cb3/FLAGcb784da7c [2024-12-05 09:40:02,691 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/data/db4d20d2f/9245b960f061480682f1fd40933b4cb3 [2024-12-05 09:40:02,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 09:40:02,694 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 09:40:02,695 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 09:40:02,695 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 09:40:02,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 09:40:02,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:40:02" (1/1) ... [2024-12-05 09:40:02,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29de9a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:02, skipping insertion in model container [2024-12-05 09:40:02,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:40:02" (1/1) ... [2024-12-05 09:40:02,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 09:40:03,018 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:40:03,018 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:40:03,019 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:40:03,019 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:40:03,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 09:40:03,083 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-12-05 09:40:03,091 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 09:40:03,125 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:40:03,125 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:40:03,125 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:40:03,125 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:40:03,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 09:40:03,155 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 09:40:03,195 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:40:03,195 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:40:03,196 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:40:03,196 WARN L1675 CHandler]: Possible shadowing of function new [2024-12-05 09:40:03,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 09:40:03,257 INFO L204 MainTranslator]: Completed translation [2024-12-05 09:40:03,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:03 WrapperNode [2024-12-05 09:40:03,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 09:40:03,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 09:40:03,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 09:40:03,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 09:40:03,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:03" (1/1) ... [2024-12-05 09:40:03,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:03" (1/1) ... [2024-12-05 09:40:03,310 INFO L138 Inliner]: procedures = 284, calls = 126, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 292 [2024-12-05 09:40:03,311 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 09:40:03,311 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 09:40:03,311 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 09:40:03,311 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 09:40:03,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:03" (1/1) ... [2024-12-05 09:40:03,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:03" (1/1) ... [2024-12-05 09:40:03,324 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:03" (1/1) ... [2024-12-05 09:40:03,324 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:03" (1/1) ... [2024-12-05 09:40:03,340 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:03" (1/1) ... [2024-12-05 09:40:03,341 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:03" (1/1) ... [2024-12-05 09:40:03,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:03" (1/1) ... [2024-12-05 09:40:03,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:03" (1/1) ... [2024-12-05 09:40:03,350 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:03" (1/1) ... [2024-12-05 09:40:03,354 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 09:40:03,354 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 09:40:03,354 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 09:40:03,355 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 09:40:03,355 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:03" (1/1) ... [2024-12-05 09:40:03,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 09:40:03,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:40:03,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-05 09:40:03,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-05 09:40:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-05 09:40:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-05 09:40:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-05 09:40:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 09:40:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-05 09:40:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-12-05 09:40:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 09:40:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-12-05 09:40:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-05 09:40:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-05 09:40:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-05 09:40:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 09:40:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-05 09:40:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-05 09:40:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-05 09:40:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 09:40:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 09:40:03,406 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-05 09:40:03,536 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 09:40:03,537 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 09:40:04,385 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-05 09:40:04,386 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 09:40:05,832 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 09:40:05,833 INFO L312 CfgBuilder]: Removed 11 assume(true) statements. [2024-12-05 09:40:05,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:40:05 BoogieIcfgContainer [2024-12-05 09:40:05,833 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 09:40:05,836 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-05 09:40:05,836 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-05 09:40:05,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-05 09:40:05,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:40:02" (1/3) ... [2024-12-05 09:40:05,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d431fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:40:05, skipping insertion in model container [2024-12-05 09:40:05,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:40:03" (2/3) ... [2024-12-05 09:40:05,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d431fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:40:05, skipping insertion in model container [2024-12-05 09:40:05,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:40:05" (3/3) ... [2024-12-05 09:40:05,843 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing-deref.i [2024-12-05 09:40:05,860 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-05 09:40:05,861 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_92-evilcollapse_racing-deref.i that has 2 procedures, 115 locations, 1 initial locations, 11 loop locations, and 48 error locations. [2024-12-05 09:40:05,861 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-05 09:40:05,941 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-12-05 09:40:05,987 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 09:40:05,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-05 09:40:05,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:40:05,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-05 09:40:05,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-05 09:40:06,087 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 09:40:06,095 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2024-12-05 09:40:06,100 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@548d4a9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 09:40:06,101 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-12-05 09:40:06,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-12-05 09:40:06,334 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-12-05 09:40:06,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:40:06,338 INFO L85 PathProgramCache]: Analyzing trace with hash -2047110608, now seen corresponding path program 1 times [2024-12-05 09:40:06,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:40:06,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1851171333] [2024-12-05 09:40:06,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:40:06,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:06,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:40:06,351 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:40:06,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-05 09:40:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:40:06,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-05 09:40:06,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:40:06,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:40:06,666 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-05 09:40:06,667 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:40:06,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851171333] [2024-12-05 09:40:06,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851171333] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:40:06,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:40:06,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-05 09:40:06,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462490422] [2024-12-05 09:40:06,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:40:06,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 09:40:06,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:40:06,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 09:40:06,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 09:40:06,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:06,700 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:40:06,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 09:40:06,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:06,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:06,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-05 09:40:07,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:07,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-12-05 09:40:07,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:40:07,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1851198959, now seen corresponding path program 1 times [2024-12-05 09:40:07,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:40:07,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260437720] [2024-12-05 09:40:07,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:40:07,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:07,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:40:07,108 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:40:07,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-05 09:40:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:40:07,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-05 09:40:07,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:40:07,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:40:07,428 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-05 09:40:07,429 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:40:07,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260437720] [2024-12-05 09:40:07,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260437720] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:40:07,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:40:07,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 09:40:07,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919666345] [2024-12-05 09:40:07,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:40:07,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 09:40:07,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:40:07,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 09:40:07,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 09:40:07,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:07,432 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:40:07,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 09:40:07,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:07,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:07,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:07,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:07,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-05 09:40:07,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:07,798 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-12-05 09:40:07,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:40:07,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1566028775, now seen corresponding path program 1 times [2024-12-05 09:40:07,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:40:07,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1353746640] [2024-12-05 09:40:07,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:40:07,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:07,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:40:07,801 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:40:07,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-05 09:40:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:40:08,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 09:40:08,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:40:08,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:40:08,183 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:40:08,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:40:08,228 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:40:08,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353746640] [2024-12-05 09:40:08,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353746640] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:40:08,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:40:08,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-12-05 09:40:08,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45903668] [2024-12-05 09:40:08,228 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-05 09:40:08,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 09:40:08,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:40:08,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 09:40:08,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-05 09:40:08,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:08,230 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:40:08,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 09:40:08,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:08,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:08,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:08,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:08,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:08,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:08,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-05 09:40:08,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:08,663 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-12-05 09:40:08,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:40:08,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1035320303, now seen corresponding path program 2 times [2024-12-05 09:40:08,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:40:08,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [236904743] [2024-12-05 09:40:08,665 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:40:08,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:08,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:40:08,667 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:40:08,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-05 09:40:08,991 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-05 09:40:08,991 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:40:09,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-05 09:40:09,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:40:09,050 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-12-05 09:40:09,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-12-05 09:40:09,071 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-12-05 09:40:09,071 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-05 09:40:09,072 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:40:09,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236904743] [2024-12-05 09:40:09,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236904743] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:40:09,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:40:09,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-05 09:40:09,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616492289] [2024-12-05 09:40:09,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:40:09,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 09:40:09,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:40:09,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 09:40:09,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 09:40:09,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:09,074 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:40:09,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 09:40:09,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:09,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:09,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:09,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:09,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-12-05 09:40:09,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:09,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:09,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:09,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:09,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-05 09:40:09,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:09,484 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-12-05 09:40:09,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:40:09,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1035320302, now seen corresponding path program 1 times [2024-12-05 09:40:09,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:40:09,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1550100235] [2024-12-05 09:40:09,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:40:09,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:09,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:40:09,487 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:40:09,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-05 09:40:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:40:09,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 09:40:09,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:40:10,024 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-05 09:40:10,024 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:40:10,108 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-05 09:40:10,109 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:40:10,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550100235] [2024-12-05 09:40:10,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550100235] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:40:10,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:40:10,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-12-05 09:40:10,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655472823] [2024-12-05 09:40:10,109 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-05 09:40:10,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 09:40:10,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:40:10,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 09:40:10,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-05 09:40:10,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:10,111 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:40:10,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 09:40:10,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:10,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:10,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:10,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:10,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:10,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:10,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:10,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:10,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:10,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:10,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-05 09:40:10,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:10,554 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-12-05 09:40:10,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:40:10,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1436490677, now seen corresponding path program 2 times [2024-12-05 09:40:10,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:40:10,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [613122409] [2024-12-05 09:40:10,556 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:40:10,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:10,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:40:10,558 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:40:10,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-05 09:40:11,625 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 09:40:11,625 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:40:11,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 2661 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-05 09:40:11,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:40:11,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 469 proven. 58 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2024-12-05 09:40:11,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:40:11,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 469 proven. 58 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2024-12-05 09:40:11,899 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:40:11,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613122409] [2024-12-05 09:40:11,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613122409] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:40:11,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:40:11,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-12-05 09:40:11,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645633910] [2024-12-05 09:40:11,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-05 09:40:11,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-05 09:40:11,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:40:11,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-05 09:40:11,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-12-05 09:40:11,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:11,901 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:40:11,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 12 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 09:40:11,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:11,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:11,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:11,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:11,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:11,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:12,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:12,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:12,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:12,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:12,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:12,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-05 09:40:12,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:12,747 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-12-05 09:40:12,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:40:12,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1306253109, now seen corresponding path program 3 times [2024-12-05 09:40:12,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:40:12,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [963528112] [2024-12-05 09:40:12,749 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 09:40:12,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:12,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:40:12,751 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:40:12,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-05 09:40:14,165 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-12-05 09:40:14,166 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:40:14,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-05 09:40:14,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:40:15,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:40:15,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-12-05 09:40:15,105 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-12-05 09:40:15,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-12-05 09:40:15,320 INFO L134 CoverageAnalysis]: Checked inductivity of 7208 backedges. 2828 proven. 0 refuted. 0 times theorem prover too weak. 4380 trivial. 0 not checked. [2024-12-05 09:40:15,320 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-05 09:40:15,320 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:40:15,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963528112] [2024-12-05 09:40:15,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963528112] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:40:15,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:40:15,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-05 09:40:15,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970724071] [2024-12-05 09:40:15,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:40:15,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-05 09:40:15,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:40:15,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-05 09:40:15,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-12-05 09:40:15,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:15,323 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:40:15,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 09:40:15,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:15,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:15,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:15,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:15,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:15,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:15,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:16,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-12-05 09:40:16,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:16,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:16,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:16,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:16,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:16,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:16,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:16,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-05 09:40:16,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:16,885 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-12-05 09:40:16,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:40:16,886 INFO L85 PathProgramCache]: Analyzing trace with hash -2049342446, now seen corresponding path program 1 times [2024-12-05 09:40:16,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:40:16,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60092921] [2024-12-05 09:40:16,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:40:16,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:16,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:40:16,890 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:40:16,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-05 09:40:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:40:19,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 5895 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-05 09:40:19,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:40:19,611 INFO L134 CoverageAnalysis]: Checked inductivity of 7208 backedges. 0 proven. 5548 refuted. 0 times theorem prover too weak. 1660 trivial. 0 not checked. [2024-12-05 09:40:19,611 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:40:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 7208 backedges. 0 proven. 5548 refuted. 0 times theorem prover too weak. 1660 trivial. 0 not checked. [2024-12-05 09:40:20,308 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:40:20,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60092921] [2024-12-05 09:40:20,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60092921] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:40:20,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:40:20,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-12-05 09:40:20,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656581801] [2024-12-05 09:40:20,308 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-05 09:40:20,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-05 09:40:20,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:40:20,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-05 09:40:20,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-12-05 09:40:20,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:20,310 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:40:20,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 09:40:20,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:20,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:20,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:20,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:20,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:20,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:20,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:20,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:21,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-05 09:40:21,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:21,356 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-12-05 09:40:21,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:40:21,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1212305996, now seen corresponding path program 2 times [2024-12-05 09:40:21,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:40:21,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053809129] [2024-12-05 09:40:21,363 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 09:40:21,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:21,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:40:21,365 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:40:21,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-05 09:40:26,660 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 09:40:26,660 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 09:40:27,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 14157 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-05 09:40:27,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 09:40:27,269 INFO L134 CoverageAnalysis]: Checked inductivity of 45740 backedges. 8317 proven. 415 refuted. 0 times theorem prover too weak. 37008 trivial. 0 not checked. [2024-12-05 09:40:27,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 09:40:27,717 INFO L134 CoverageAnalysis]: Checked inductivity of 45740 backedges. 8317 proven. 415 refuted. 0 times theorem prover too weak. 37008 trivial. 0 not checked. [2024-12-05 09:40:27,717 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-05 09:40:27,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053809129] [2024-12-05 09:40:27,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053809129] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 09:40:27,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-05 09:40:27,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-12-05 09:40:27,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819180985] [2024-12-05 09:40:27,717 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-05 09:40:27,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-05 09:40:27,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-05 09:40:27,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-05 09:40:27,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-12-05 09:40:27,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:27,719 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:40:27,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 09:40:27,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:27,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:27,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:27,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:27,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:27,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:27,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:27,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:27,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:40:30,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:30,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:30,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:30,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 09:40:30,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 09:40:30,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:30,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:30,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 09:40:30,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-05 09:40:30,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-05 09:40:30,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:30,386 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-12-05 09:40:30,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:40:30,387 INFO L85 PathProgramCache]: Analyzing trace with hash 762793420, now seen corresponding path program 3 times [2024-12-05 09:40:30,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-05 09:40:30,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440478735] [2024-12-05 09:40:30,397 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 09:40:30,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 09:40:30,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:40:30,399 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 09:40:30,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0d6ca0-0e4a-4355-ab8c-7d08a2f711fe/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process