./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a 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_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU --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 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:15:19,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:15:19,464 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:15:19,469 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:15:19,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:15:19,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:15:19,496 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:15:19,496 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:15:19,497 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:15:19,497 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:15:19,499 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:15:19,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:15:19,500 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:15:19,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:15:19,503 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:15:19,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:15:19,504 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:15:19,504 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:15:19,505 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:15:19,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:15:19,505 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:15:19,510 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:15:19,510 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:15:19,511 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:15:19,511 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:15:19,512 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:15:19,512 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:15:19,512 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:15:19,513 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:15:19,513 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:15:19,513 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:15:19,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:15:19,514 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:15:19,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:19,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:15:19,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:15:19,515 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:15:19,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:15:19,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:15:19,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:15:19,517 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:15:19,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:15:19,519 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_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2024-10-31 22:15:19,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:15:19,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:15:19,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:15:19,851 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:15:19,851 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:15:19,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i Unable to find full path for "g++" [2024-10-31 22:15:21,962 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:15:22,320 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:15:22,321 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-10-31 22:15:22,362 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/data/7d86a6ebf/f5d5b456cc39469c9acbbff959d8cbb0/FLAG54e9ac0e0 [2024-10-31 22:15:22,532 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/data/7d86a6ebf/f5d5b456cc39469c9acbbff959d8cbb0 [2024-10-31 22:15:22,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:15:22,536 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:15:22,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:22,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:15:22,545 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:15:22,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:22" (1/1) ... [2024-10-31 22:15:22,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3804e052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:22, skipping insertion in model container [2024-10-31 22:15:22,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:22" (1/1) ... [2024-10-31 22:15:22,634 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:23,214 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:23,231 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:23,244 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:23,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:23,296 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) [2024-10-31 22:15:23,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@83d63e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:23, skipping insertion in model container [2024-10-31 22:15:23,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:23,298 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-31 22:15:23,300 INFO L158 Benchmark]: Toolchain (without parser) took 763.17ms. Allocated memory is still 163.6MB. Free memory was 127.3MB in the beginning and 104.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-31 22:15:23,301 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:15:23,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 760.29ms. Allocated memory is still 163.6MB. Free memory was 127.3MB in the beginning and 104.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-31 22:15:23,304 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 760.29ms. Allocated memory is still 163.6MB. Free memory was 127.3MB in the beginning and 104.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3904]: 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_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU --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 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:15:25,649 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:15:25,747 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-31 22:15:25,754 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:15:25,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:15:25,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:15:25,800 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:15:25,800 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:15:25,801 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:15:25,801 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:15:25,801 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:15:25,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:15:25,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:15:25,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:15:25,806 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:15:25,806 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:15:25,806 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:15:25,807 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:15:25,807 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:15:25,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:15:25,808 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:15:25,812 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:15:25,812 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:15:25,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:15:25,812 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:15:25,813 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 22:15:25,813 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:15:25,813 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 22:15:25,813 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:15:25,814 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:15:25,814 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:15:25,814 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:15:25,814 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:15:25,815 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:15:25,816 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:15:25,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:25,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:15:25,818 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:15:25,818 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 22:15:25,819 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 22:15:25,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:15:25,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:15:25,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:15:25,829 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:15:25,829 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 22:15:25,829 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_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2024-10-31 22:15:26,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:15:26,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:15:26,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:15:26,256 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:15:26,256 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:15:26,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i Unable to find full path for "g++" [2024-10-31 22:15:28,486 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:15:28,918 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:15:28,918 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-10-31 22:15:28,966 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/data/1c62d7899/68d59ce6a31a4d658073d487a2ee2d80/FLAGd947c634a [2024-10-31 22:15:28,994 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/data/1c62d7899/68d59ce6a31a4d658073d487a2ee2d80 [2024-10-31 22:15:28,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:15:28,999 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:15:29,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:29,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:15:29,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:15:29,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:28" (1/1) ... [2024-10-31 22:15:29,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c935cb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:29, skipping insertion in model container [2024-10-31 22:15:29,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:28" (1/1) ... [2024-10-31 22:15:29,095 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:29,847 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:29,866 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:29,879 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:29,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:29,911 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-31 22:15:29,935 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:29,983 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:29,988 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:29,989 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:30,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:30,013 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:15:30,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:30,213 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:15:30,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:30 WrapperNode [2024-10-31 22:15:30,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:30,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:30,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:15:30,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:15:30,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:30" (1/1) ... [2024-10-31 22:15:30,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:30" (1/1) ... [2024-10-31 22:15:30,354 INFO L138 Inliner]: procedures = 251, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 152 [2024-10-31 22:15:30,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:30,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:15:30,360 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:15:30,360 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:15:30,376 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:30" (1/1) ... [2024-10-31 22:15:30,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:30" (1/1) ... [2024-10-31 22:15:30,389 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:30" (1/1) ... [2024-10-31 22:15:30,416 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 15, 2]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 8, 2]. [2024-10-31 22:15:30,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:30" (1/1) ... [2024-10-31 22:15:30,417 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:30" (1/1) ... [2024-10-31 22:15:30,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:30" (1/1) ... [2024-10-31 22:15:30,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:30" (1/1) ... [2024-10-31 22:15:30,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:30" (1/1) ... [2024-10-31 22:15:30,462 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:30" (1/1) ... [2024-10-31 22:15:30,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:15:30,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:15:30,470 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:15:30,470 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:15:30,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:30" (1/1) ... [2024-10-31 22:15:30,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:30,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:30,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:15:30,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:15:30,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-31 22:15:30,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-31 22:15:30,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-31 22:15:30,554 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-10-31 22:15:30,554 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-10-31 22:15:30,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:15:30,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:15:30,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:15:30,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-31 22:15:30,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-31 22:15:30,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-31 22:15:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 22:15:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-31 22:15:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-31 22:15:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:15:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:15:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:15:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:15:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:15:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:15:30,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:15:30,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:15:30,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:15:30,560 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:15:31,138 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:15:31,141 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:15:31,971 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:15:31,971 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:15:32,240 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:15:32,242 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:15:32,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:32 BoogieIcfgContainer [2024-10-31 22:15:32,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:15:32,248 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:15:32,248 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:15:32,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:15:32,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:15:28" (1/3) ... [2024-10-31 22:15:32,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156a36fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:32, skipping insertion in model container [2024-10-31 22:15:32,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:30" (2/3) ... [2024-10-31 22:15:32,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156a36fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:32, skipping insertion in model container [2024-10-31 22:15:32,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:32" (3/3) ... [2024-10-31 22:15:32,258 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2024-10-31 22:15:32,284 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:15:32,285 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2024-10-31 22:15:32,285 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:15:32,387 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:15:32,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 124 transitions, 262 flow [2024-10-31 22:15:32,560 INFO L124 PetriNetUnfolderBase]: 14/171 cut-off events. [2024-10-31 22:15:32,561 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:15:32,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 171 events. 14/171 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 694 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2024-10-31 22:15:32,567 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 124 transitions, 262 flow [2024-10-31 22:15:32,576 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 122 transitions, 256 flow [2024-10-31 22:15:32,595 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:32,605 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=PETRI_NET, 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;@5d7e9c4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:32,609 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-10-31 22:15:32,612 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:15:32,615 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-31 22:15:32,615 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:15:32,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:32,616 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-31 22:15:32,617 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-31 22:15:32,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:32,623 INFO L85 PathProgramCache]: Analyzing trace with hash 563048, now seen corresponding path program 1 times [2024-10-31 22:15:32,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:32,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28290630] [2024-10-31 22:15:32,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:32,645 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 [2024-10-31 22:15:32,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:32,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:32,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:32,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:15:32,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:32,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-31 22:15:33,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:33,002 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:33,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:33,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28290630] [2024-10-31 22:15:33,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [28290630] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:33,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:33,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:33,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035197608] [2024-10-31 22:15:33,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:33,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:33,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:33,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:33,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:33,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2024-10-31 22:15:33,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 122 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-10-31 22:15:33,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:33,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2024-10-31 22:15:33,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:37,028 INFO L124 PetriNetUnfolderBase]: 9323/18312 cut-off events. [2024-10-31 22:15:37,029 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-10-31 22:15:37,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32872 conditions, 18312 events. 9323/18312 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 177600 event pairs, 559 based on Foata normal form. 792/11540 useless extension candidates. Maximal degree in co-relation 32603. Up to 13528 conditions per place. [2024-10-31 22:15:37,210 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 94 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2024-10-31 22:15:37,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 134 transitions, 472 flow [2024-10-31 22:15:37,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:37,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:37,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-10-31 22:15:37,228 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6075268817204301 [2024-10-31 22:15:37,231 INFO L175 Difference]: Start difference. First operand has 118 places, 122 transitions, 256 flow. Second operand 3 states and 226 transitions. [2024-10-31 22:15:37,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 134 transitions, 472 flow [2024-10-31 22:15:37,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 134 transitions, 464 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:15:37,247 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2024-10-31 22:15:37,249 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2024-10-31 22:15:37,255 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, -8 predicate places. [2024-10-31 22:15:37,257 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2024-10-31 22:15:37,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-10-31 22:15:37,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:37,258 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-31 22:15:37,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:37,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:37,459 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-31 22:15:37,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:37,461 INFO L85 PathProgramCache]: Analyzing trace with hash 563049, now seen corresponding path program 1 times [2024-10-31 22:15:37,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:37,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93117744] [2024-10-31 22:15:37,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:37,463 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 [2024-10-31 22:15:37,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:37,467 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:37,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-31 22:15:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:37,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:15:37,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:37,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-31 22:15:37,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:37,656 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:37,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:37,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93117744] [2024-10-31 22:15:37,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [93117744] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:37,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:37,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:37,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320269176] [2024-10-31 22:15:37,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:37,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:37,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:37,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:37,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:37,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2024-10-31 22:15:37,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2024-10-31 22:15:37,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:37,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2024-10-31 22:15:37,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:40,583 INFO L124 PetriNetUnfolderBase]: 9323/18310 cut-off events. [2024-10-31 22:15:40,584 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-10-31 22:15:40,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33036 conditions, 18310 events. 9323/18310 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 177732 event pairs, 559 based on Foata normal form. 1/10747 useless extension candidates. Maximal degree in co-relation 1995. Up to 13528 conditions per place. [2024-10-31 22:15:40,785 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 93 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2024-10-31 22:15:40,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 132 transitions, 462 flow [2024-10-31 22:15:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:40,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:40,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2024-10-31 22:15:40,789 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5913978494623656 [2024-10-31 22:15:40,789 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 220 transitions. [2024-10-31 22:15:40,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 132 transitions, 462 flow [2024-10-31 22:15:40,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 132 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:40,800 INFO L231 Difference]: Finished difference. Result has 108 places, 106 transitions, 220 flow [2024-10-31 22:15:40,801 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=108, PETRI_TRANSITIONS=106} [2024-10-31 22:15:40,801 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2024-10-31 22:15:40,802 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 106 transitions, 220 flow [2024-10-31 22:15:40,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2024-10-31 22:15:40,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:40,803 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:15:40,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-31 22:15:41,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:41,007 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-31 22:15:41,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:41,009 INFO L85 PathProgramCache]: Analyzing trace with hash 17452875, now seen corresponding path program 1 times [2024-10-31 22:15:41,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:41,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141188006] [2024-10-31 22:15:41,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:41,012 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 [2024-10-31 22:15:41,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:41,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:41,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-31 22:15:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:41,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:15:41,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:41,179 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:41,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:41,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141188006] [2024-10-31 22:15:41,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141188006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:41,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:41,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:41,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905250231] [2024-10-31 22:15:41,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:41,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:41,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:41,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:41,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:41,184 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2024-10-31 22:15:41,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 106 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-10-31 22:15:41,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:41,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2024-10-31 22:15:41,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:43,969 INFO L124 PetriNetUnfolderBase]: 9322/15614 cut-off events. [2024-10-31 22:15:43,969 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-10-31 22:15:43,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30340 conditions, 15614 events. 9322/15614 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 834. Compared 119285 event pairs, 8957 based on Foata normal form. 1/9011 useless extension candidates. Maximal degree in co-relation 16169. Up to 13949 conditions per place. [2024-10-31 22:15:44,050 INFO L140 encePairwiseOnDemand]: 121/124 looper letters, 93 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2024-10-31 22:15:44,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 131 transitions, 460 flow [2024-10-31 22:15:44,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:44,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:44,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 222 transitions. [2024-10-31 22:15:44,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5967741935483871 [2024-10-31 22:15:44,053 INFO L175 Difference]: Start difference. First operand has 108 places, 106 transitions, 220 flow. Second operand 3 states and 222 transitions. [2024-10-31 22:15:44,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 131 transitions, 460 flow [2024-10-31 22:15:44,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 131 transitions, 456 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:44,058 INFO L231 Difference]: Finished difference. Result has 108 places, 105 transitions, 218 flow [2024-10-31 22:15:44,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=108, PETRI_TRANSITIONS=105} [2024-10-31 22:15:44,059 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2024-10-31 22:15:44,060 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 105 transitions, 218 flow [2024-10-31 22:15:44,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-10-31 22:15:44,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:44,060 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:44,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-31 22:15:44,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:44,265 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-31 22:15:44,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:44,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1118249543, now seen corresponding path program 1 times [2024-10-31 22:15:44,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:44,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735516773] [2024-10-31 22:15:44,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:44,267 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 [2024-10-31 22:15:44,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:44,271 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:44,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-31 22:15:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:44,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:15:44,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:44,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:44,506 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:44,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:44,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1735516773] [2024-10-31 22:15:44,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1735516773] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:44,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:44,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:44,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183287720] [2024-10-31 22:15:44,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:44,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:44,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:44,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:44,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:44,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2024-10-31 22:15:44,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 105 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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) [2024-10-31 22:15:44,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:44,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2024-10-31 22:15:44,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:46,461 INFO L124 PetriNetUnfolderBase]: 9321/16372 cut-off events. [2024-10-31 22:15:46,461 INFO L125 PetriNetUnfolderBase]: For 199/199 co-relation queries the response was YES. [2024-10-31 22:15:46,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31092 conditions, 16372 events. 9321/16372 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 857. Compared 131897 event pairs, 9321 based on Foata normal form. 1/9713 useless extension candidates. Maximal degree in co-relation 29764. Up to 14494 conditions per place. [2024-10-31 22:15:46,552 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 74 selfloop transitions, 3 changer transitions 1/114 dead transitions. [2024-10-31 22:15:46,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 114 transitions, 394 flow [2024-10-31 22:15:46,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:46,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:15:46,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-10-31 22:15:46,555 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5060483870967742 [2024-10-31 22:15:46,555 INFO L175 Difference]: Start difference. First operand has 108 places, 105 transitions, 218 flow. Second operand 4 states and 251 transitions. [2024-10-31 22:15:46,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 114 transitions, 394 flow [2024-10-31 22:15:46,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 114 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:46,576 INFO L231 Difference]: Finished difference. Result has 111 places, 107 transitions, 235 flow [2024-10-31 22:15:46,580 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=111, PETRI_TRANSITIONS=107} [2024-10-31 22:15:46,581 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, -7 predicate places. [2024-10-31 22:15:46,581 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 107 transitions, 235 flow [2024-10-31 22:15:46,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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) [2024-10-31 22:15:46,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:46,582 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:46,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-31 22:15:46,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:46,782 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-31 22:15:46,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:46,783 INFO L85 PathProgramCache]: Analyzing trace with hash 305997286, now seen corresponding path program 1 times [2024-10-31 22:15:46,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:46,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774937432] [2024-10-31 22:15:46,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:46,785 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 [2024-10-31 22:15:46,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:46,787 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:46,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-31 22:15:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:46,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:15:46,961 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:46,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-31 22:15:47,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:47,011 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:47,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:47,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774937432] [2024-10-31 22:15:47,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774937432] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:47,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:47,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:47,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449071784] [2024-10-31 22:15:47,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:47,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:47,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:47,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:47,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:47,099 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 124 [2024-10-31 22:15:47,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 107 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-10-31 22:15:47,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:47,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 124 [2024-10-31 22:15:47,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:49,449 INFO L124 PetriNetUnfolderBase]: 10049/16876 cut-off events. [2024-10-31 22:15:49,449 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2024-10-31 22:15:49,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33118 conditions, 16876 events. 10049/16876 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 882. Compared 129157 event pairs, 9321 based on Foata normal form. 0/10098 useless extension candidates. Maximal degree in co-relation 33071. Up to 14501 conditions per place. [2024-10-31 22:15:49,522 INFO L140 encePairwiseOnDemand]: 115/124 looper letters, 95 selfloop transitions, 5 changer transitions 0/128 dead transitions. [2024-10-31 22:15:49,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 128 transitions, 477 flow [2024-10-31 22:15:49,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:49,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:49,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2024-10-31 22:15:49,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5591397849462365 [2024-10-31 22:15:49,524 INFO L175 Difference]: Start difference. First operand has 111 places, 107 transitions, 235 flow. Second operand 3 states and 208 transitions. [2024-10-31 22:15:49,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 128 transitions, 477 flow [2024-10-31 22:15:49,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 128 transitions, 476 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:15:49,537 INFO L231 Difference]: Finished difference. Result has 107 places, 102 transitions, 234 flow [2024-10-31 22:15:49,538 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2024-10-31 22:15:49,538 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, -11 predicate places. [2024-10-31 22:15:49,539 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 234 flow [2024-10-31 22:15:49,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-10-31 22:15:49,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:49,539 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:49,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-10-31 22:15:49,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:49,740 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2024-10-31 22:15:49,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:49,741 INFO L85 PathProgramCache]: Analyzing trace with hash 305997287, now seen corresponding path program 1 times [2024-10-31 22:15:49,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:49,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963294922] [2024-10-31 22:15:49,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:49,742 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 [2024-10-31 22:15:49,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:49,745 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:49,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6a7010-570e-4cc6-bf0f-d9c3bf56ef22/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-31 22:15:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:49,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:15:49,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:49,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-31 22:15:50,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:50,008 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:50,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:50,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963294922] [2024-10-31 22:15:50,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963294922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:50,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:50,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:50,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34920906] [2024-10-31 22:15:50,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:50,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:50,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:50,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:50,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:50,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 124 [2024-10-31 22:15:50,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2024-10-31 22:15:50,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:50,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 124 [2024-10-31 22:15:50,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand