./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:07:03,910 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:07:03,986 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 21:07:03,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:07:03,993 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:07:04,020 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:07:04,021 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:07:04,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:07:04,022 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:07:04,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:07:04,024 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:07:04,024 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:07:04,025 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:07:04,026 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 21:07:04,026 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:07:04,027 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:07:04,027 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 21:07:04,028 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 21:07:04,028 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:07:04,029 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 21:07:04,029 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 21:07:04,030 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 21:07:04,031 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:07:04,031 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:07:04,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:07:04,032 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:07:04,033 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:07:04,033 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:07:04,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:07:04,034 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:07:04,035 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:07:04,035 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:07:04,035 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:07:04,036 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:07:04,036 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:07:04,037 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:07:04,037 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:07:04,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:07:04,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:07:04,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:07:04,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:07:04,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:07:04,040 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 21:07:04,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:07:04,041 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:07:04,042 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:07:04,042 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c [2023-11-06 21:07:04,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:07:04,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:07:04,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:07:04,405 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:07:04,406 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:07:04,408 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2023-11-06 21:07:07,645 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:07:07,988 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:07:07,989 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2023-11-06 21:07:08,006 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/data/56da19d8a/c9886dd4633e4364a142a78d76a67883/FLAGfdda0f657 [2023-11-06 21:07:08,022 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/data/56da19d8a/c9886dd4633e4364a142a78d76a67883 [2023-11-06 21:07:08,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:07:08,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:07:08,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:07:08,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:07:08,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:07:08,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:07:08" (1/1) ... [2023-11-06 21:07:08,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3454be62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:08, skipping insertion in model container [2023-11-06 21:07:08,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:07:08" (1/1) ... [2023-11-06 21:07:08,090 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:07:08,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:07:08,659 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-06 21:07:08,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@24cf5168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:08, skipping insertion in model container [2023-11-06 21:07:08,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:07:08,660 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 21:07:08,663 INFO L158 Benchmark]: Toolchain (without parser) took 635.50ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 83.1MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 21:07:08,665 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 102.8MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:07:08,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 632.72ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 83.1MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 21:07:08,668 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 102.8MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 632.72ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 83.1MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 922]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:07:11,237 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:07:11,330 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 21:07:11,337 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:07:11,340 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:07:11,387 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:07:11,388 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:07:11,389 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:07:11,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:07:11,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:07:11,396 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:07:11,397 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:07:11,398 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:07:11,400 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:07:11,400 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:07:11,401 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:07:11,402 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:07:11,402 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:07:11,403 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:07:11,404 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:07:11,405 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:07:11,406 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:07:11,406 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:07:11,406 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:07:11,407 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:07:11,407 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:07:11,408 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:07:11,408 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:07:11,409 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 21:07:11,409 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 21:07:11,411 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:07:11,411 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:07:11,412 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:07:11,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:07:11,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:07:11,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:07:11,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:07:11,414 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:07:11,414 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:07:11,415 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 21:07:11,415 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 21:07:11,416 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:07:11,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:07:11,416 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c [2023-11-06 21:07:11,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:07:11,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:07:11,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:07:11,908 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:07:11,908 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:07:11,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2023-11-06 21:07:15,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:07:15,533 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:07:15,533 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2023-11-06 21:07:15,575 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/data/e1b2136ad/45e14f458d914ae29446e7611c42e035/FLAG2a6182a2f [2023-11-06 21:07:15,597 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/data/e1b2136ad/45e14f458d914ae29446e7611c42e035 [2023-11-06 21:07:15,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:07:15,601 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:07:15,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:07:15,605 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:07:15,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:07:15,614 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:07:15" (1/1) ... [2023-11-06 21:07:15,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28344ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:15, skipping insertion in model container [2023-11-06 21:07:15,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:07:15" (1/1) ... [2023-11-06 21:07:15,680 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:07:16,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:07:16,286 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 21:07:16,298 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:07:16,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:07:16,388 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:07:16,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:07:16,554 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:07:16,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:16 WrapperNode [2023-11-06 21:07:16,555 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:07:16,556 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:07:16,556 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:07:16,557 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:07:16,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:16" (1/1) ... [2023-11-06 21:07:16,601 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:16" (1/1) ... [2023-11-06 21:07:16,636 INFO L138 Inliner]: procedures = 264, calls = 27, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2023-11-06 21:07:16,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:07:16,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:07:16,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:07:16,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:07:16,649 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:16" (1/1) ... [2023-11-06 21:07:16,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:16" (1/1) ... [2023-11-06 21:07:16,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:16" (1/1) ... [2023-11-06 21:07:16,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:16" (1/1) ... [2023-11-06 21:07:16,679 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:16" (1/1) ... [2023-11-06 21:07:16,692 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:16" (1/1) ... [2023-11-06 21:07:16,695 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:16" (1/1) ... [2023-11-06 21:07:16,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:16" (1/1) ... [2023-11-06 21:07:16,710 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:07:16,711 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:07:16,711 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:07:16,711 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:07:16,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:16" (1/1) ... [2023-11-06 21:07:16,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:07:16,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 21:07:16,765 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:07:16,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:07:16,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 21:07:16,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:07:16,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:07:16,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 21:07:16,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 21:07:16,812 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 21:07:16,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:07:16,813 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 21:07:16,813 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 21:07:16,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:07:16,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:07:16,815 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:07:17,018 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:07:17,021 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:07:17,451 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:07:17,459 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:07:17,460 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:07:17,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:07:17 BoogieIcfgContainer [2023-11-06 21:07:17,464 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:07:17,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:07:17,468 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:07:17,471 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:07:17,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:07:15" (1/3) ... [2023-11-06 21:07:17,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe082a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:07:17, skipping insertion in model container [2023-11-06 21:07:17,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:07:16" (2/3) ... [2023-11-06 21:07:17,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe082a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:07:17, skipping insertion in model container [2023-11-06 21:07:17,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:07:17" (3/3) ... [2023-11-06 21:07:17,478 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2023-11-06 21:07:17,499 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:07:17,500 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2023-11-06 21:07:17,500 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:07:17,626 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 21:07:17,675 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 21:07:17,694 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 93 transitions, 193 flow [2023-11-06 21:07:17,699 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 93 transitions, 193 flow [2023-11-06 21:07:17,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 93 transitions, 193 flow [2023-11-06 21:07:17,774 INFO L124 PetriNetUnfolderBase]: 1/92 cut-off events. [2023-11-06 21:07:17,774 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 21:07:17,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 92 events. 1/92 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 135 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 6. Up to 2 conditions per place. [2023-11-06 21:07:17,780 INFO L119 LiptonReduction]: Number of co-enabled transitions 544 [2023-11-06 21:07:40,058 INFO L134 LiptonReduction]: Checked pairs total: 2166 [2023-11-06 21:07:40,058 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-11-06 21:07:40,067 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 31 transitions, 69 flow [2023-11-06 21:07:40,089 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 117 states, 78 states have (on average 2.628205128205128) internal successors, (205), 116 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:07:40,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:07:40,116 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3086c82b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 21:07:40,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-06 21:07:40,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 78 states have (on average 2.628205128205128) internal successors, (205), 116 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:07:40,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-06 21:07:40,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:07:40,125 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-06 21:07:40,126 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-11-06 21:07:40,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:07:40,132 INFO L85 PathProgramCache]: Analyzing trace with hash 340, now seen corresponding path program 1 times [2023-11-06 21:07:40,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 21:07:40,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131854966] [2023-11-06 21:07:40,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:07:40,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:07:40,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 21:07:40,162 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 21:07:40,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16f5d75-5693-4622-b077-4b2ed3257d58/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 21:07:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:07:40,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 21:07:40,259 INFO L285 TraceCheckSpWp]: Computing forward predicates...