./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash faddac23864cc4e42f962ac43a8d0f59593853dbb1d55e3baabe0c76b2187dd4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:50:16,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:50:16,544 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:50:16,548 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:50:16,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:50:16,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:50:16,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:50:16,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:50:16,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:50:16,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:50:16,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:50:16,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:50:16,593 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:50:16,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:50:16,599 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:50:16,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:50:16,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:50:16,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:50:16,602 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:50:16,602 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:50:16,603 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:50:16,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:50:16,604 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:50:16,604 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:50:16,614 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:50:16,615 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:50:16,615 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:50:16,616 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:50:16,616 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:50:16,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:16,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:50:16,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:50:16,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:50:16,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:50:16,618 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:50:16,619 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:50:16,619 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:50:16,619 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:50:16,619 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faddac23864cc4e42f962ac43a8d0f59593853dbb1d55e3baabe0c76b2187dd4 [2023-11-19 07:50:16,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:50:16,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:50:16,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:50:16,913 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:50:16,914 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:50:16,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c [2023-11-19 07:50:20,048 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:50:20,263 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:50:20,263 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c [2023-11-19 07:50:20,273 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/data/ccd249276/8df47d86cc4c452b9305aea03e8e6e5f/FLAGb26658863 [2023-11-19 07:50:20,297 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/data/ccd249276/8df47d86cc4c452b9305aea03e8e6e5f [2023-11-19 07:50:20,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:50:20,301 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:50:20,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:20,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:50:20,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:50:20,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:20" (1/1) ... [2023-11-19 07:50:20,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c52fd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:20, skipping insertion in model container [2023-11-19 07:50:20,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:20" (1/1) ... [2023-11-19 07:50:20,337 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:50:20,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:20,560 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) [2023-11-19 07:50:20,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4f9fe23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:20, skipping insertion in model container [2023-11-19 07:50:20,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:20,561 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:50:20,563 INFO L158 Benchmark]: Toolchain (without parser) took 261.09ms. Allocated memory is still 155.2MB. Free memory was 126.8MB in the beginning and 116.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:50:20,564 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 119.5MB. Free memory was 88.1MB in the beginning and 88.0MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:50:20,565 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.43ms. Allocated memory is still 155.2MB. Free memory was 126.8MB in the beginning and 116.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:50:20,566 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 119.5MB. Free memory was 88.1MB in the beginning and 88.0MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.43ms. Allocated memory is still 155.2MB. Free memory was 126.8MB in the beginning and 116.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 112]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash faddac23864cc4e42f962ac43a8d0f59593853dbb1d55e3baabe0c76b2187dd4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:50:23,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:50:23,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-19 07:50:23,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:50:23,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:50:23,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:50:23,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:50:23,387 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:50:23,388 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:50:23,389 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:50:23,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:50:23,390 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:50:23,391 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:50:23,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:50:23,393 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:50:23,393 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:50:23,394 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:50:23,395 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:50:23,395 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:50:23,396 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:50:23,396 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:50:23,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:50:23,398 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:50:23,398 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:50:23,399 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:50:23,399 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:50:23,400 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:50:23,400 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:50:23,401 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:50:23,401 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:50:23,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:50:23,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:23,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:50:23,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:50:23,403 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:50:23,404 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:50:23,404 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:50:23,404 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:50:23,404 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:50:23,405 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:50:23,405 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:50:23,405 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faddac23864cc4e42f962ac43a8d0f59593853dbb1d55e3baabe0c76b2187dd4 [2023-11-19 07:50:23,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:50:23,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:50:23,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:50:23,840 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:50:23,841 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:50:23,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c [2023-11-19 07:50:27,247 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:50:27,604 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:50:27,605 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c [2023-11-19 07:50:27,616 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/data/45f9cca22/b95dc7d8d9264469906c0d2ad53dabe8/FLAGcd4e5fc65 [2023-11-19 07:50:27,644 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/data/45f9cca22/b95dc7d8d9264469906c0d2ad53dabe8 [2023-11-19 07:50:27,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:50:27,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:50:27,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:27,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:50:27,668 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:50:27,669 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:27" (1/1) ... [2023-11-19 07:50:27,670 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d1fc0fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:27, skipping insertion in model container [2023-11-19 07:50:27,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:27" (1/1) ... [2023-11-19 07:50:27,722 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:50:28,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:28,090 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:50:28,106 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:50:28,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:28,160 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:50:28,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:28,213 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:50:28,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28 WrapperNode [2023-11-19 07:50:28,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:28,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:28,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:50:28,216 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:50:28,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,240 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,288 INFO L138 Inliner]: procedures = 25, calls = 42, calls flagged for inlining = 18, calls inlined = 32, statements flattened = 273 [2023-11-19 07:50:28,289 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:28,290 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:50:28,290 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:50:28,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:50:28,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,329 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,352 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,357 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,362 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,372 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:50:28,373 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:50:28,373 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:50:28,374 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:50:28,375 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (1/1) ... [2023-11-19 07:50:28,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:28,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:28,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:50:28,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:50:28,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:50:28,480 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:50:28,480 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:50:28,480 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:50:28,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:50:28,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:50:28,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:50:28,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:50:28,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:50:28,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:50:28,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:50:28,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:50:28,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:50:28,484 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:50:28,641 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:50:28,644 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:50:29,797 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:50:29,820 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:50:29,820 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 07:50:29,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:29 BoogieIcfgContainer [2023-11-19 07:50:29,834 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:50:29,837 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:50:29,837 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:50:29,844 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:50:29,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:50:27" (1/3) ... [2023-11-19 07:50:29,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b98b967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:29, skipping insertion in model container [2023-11-19 07:50:29,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:28" (2/3) ... [2023-11-19 07:50:29,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b98b967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:29, skipping insertion in model container [2023-11-19 07:50:29,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:29" (3/3) ... [2023-11-19 07:50:29,850 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-1.wvr.c [2023-11-19 07:50:29,874 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:50:29,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-19 07:50:29,877 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:50:30,085 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:50:30,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 395 places, 416 transitions, 846 flow [2023-11-19 07:50:30,370 INFO L124 PetriNetUnfolderBase]: 28/414 cut-off events. [2023-11-19 07:50:30,371 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:50:30,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 414 events. 28/414 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1027 event pairs, 0 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 281. Up to 2 conditions per place. [2023-11-19 07:50:30,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 395 places, 416 transitions, 846 flow [2023-11-19 07:50:30,399 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 388 places, 409 transitions, 830 flow [2023-11-19 07:50:30,403 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:50:30,419 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 388 places, 409 transitions, 830 flow [2023-11-19 07:50:30,423 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 388 places, 409 transitions, 830 flow [2023-11-19 07:50:30,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 388 places, 409 transitions, 830 flow [2023-11-19 07:50:30,580 INFO L124 PetriNetUnfolderBase]: 28/409 cut-off events. [2023-11-19 07:50:30,580 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:50:30,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 409 events. 28/409 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1017 event pairs, 0 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 281. Up to 2 conditions per place. [2023-11-19 07:50:30,620 INFO L119 LiptonReduction]: Number of co-enabled transitions 41496 [2023-11-19 07:51:15,042 INFO L134 LiptonReduction]: Checked pairs total: 38717 [2023-11-19 07:51:15,042 INFO L136 LiptonReduction]: Total number of compositions: 524 [2023-11-19 07:51:15,057 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:51:15,064 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=PETRI_NET, 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;@48eac0b0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:51:15,064 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-11-19 07:51:15,067 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:51:15,068 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-19 07:51:15,068 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:51:15,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:51:15,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-19 07:51:15,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-11-19 07:51:15,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:51:15,075 INFO L85 PathProgramCache]: Analyzing trace with hash 56541, now seen corresponding path program 1 times [2023-11-19 07:51:15,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:51:15,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398259589] [2023-11-19 07:51:15,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:15,089 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 [2023-11-19 07:51:15,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:51:15,092 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:51:15,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb09339d-27fa-4b55-b2c8-6269564dbfb9/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:51:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:15,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:51:15,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:51:15,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-19 07:51:15,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:51:15,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-19 07:51:15,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:51:15,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-19 07:51:15,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:51:15,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-11-19 07:51:15,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:51:15,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-19 07:51:15,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:51:15,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-19 07:51:15,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:51:15,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:51:15,483 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:51:15,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398259589] [2023-11-19 07:51:15,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398259589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:51:15,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:51:15,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:51:15,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871003292] [2023-11-19 07:51:15,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:51:15,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:51:15,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:51:15,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:51:15,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:51:15,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 940 [2023-11-19 07:51:15,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 380.6666666666667) internal successors, (1142), 3 states have internal predecessors, (1142), 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) [2023-11-19 07:51:15,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:51:15,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 940 [2023-11-19 07:51:15,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand