./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 d2c89f010e0f73e8ba7e81bb150b82b70d39c0827c0d616dd2c3347839d51e01 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:46:11,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:46:11,491 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:46:11,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:46:11,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:46:11,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:46:11,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:46:11,541 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:46:11,542 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:46:11,544 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:46:11,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:46:11,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:46:11,545 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:46:11,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:46:11,546 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:46:11,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:46:11,550 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:46:11,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:46:11,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:46:11,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:46:11,556 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:46:11,559 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:46:11,559 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:46:11,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:46:11,560 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:46:11,560 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:46:11,560 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:46:11,560 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:46:11,560 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:46:11,561 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:46:11,561 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:46:11,561 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:46:11,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:46:11,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:46:11,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:46:11,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:46:11,562 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:46:11,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:46:11,567 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:46:11,568 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:46:11,568 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:46:11,569 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:46:11,569 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2c89f010e0f73e8ba7e81bb150b82b70d39c0827c0d616dd2c3347839d51e01 [2024-10-13 12:46:11,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:46:11,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:46:11,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:46:11,843 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:46:11,844 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:46:11,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c [2024-10-13 12:46:13,176 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:46:13,365 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:46:13,366 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c [2024-10-13 12:46:13,379 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5caf42309/207d0eaa81754c54bdcbe6ae1826b484/FLAG9f66166da [2024-10-13 12:46:13,747 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5caf42309/207d0eaa81754c54bdcbe6ae1826b484 [2024-10-13 12:46:13,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:46:13,750 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:46:13,752 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:46:13,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:46:13,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:46:13,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:46:13" (1/1) ... [2024-10-13 12:46:13,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522837cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:13, skipping insertion in model container [2024-10-13 12:46:13,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:46:13" (1/1) ... [2024-10-13 12:46:13,781 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:46:13,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:46:14,014 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) [2024-10-13 12:46:14,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@8b6d592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:14, skipping insertion in model container [2024-10-13 12:46:14,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:46:14,015 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-13 12:46:14,017 INFO L158 Benchmark]: Toolchain (without parser) took 266.06ms. Allocated memory is still 172.0MB. Free memory was 117.8MB in the beginning and 106.0MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 12:46:14,020 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 172.0MB. Free memory is still 133.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:46:14,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.35ms. Allocated memory is still 172.0MB. Free memory was 117.8MB in the beginning and 106.5MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 12:46:14,022 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 172.0MB. Free memory is still 133.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.35ms. Allocated memory is still 172.0MB. Free memory was 117.8MB in the beginning and 106.5MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 135]: 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: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 d2c89f010e0f73e8ba7e81bb150b82b70d39c0827c0d616dd2c3347839d51e01 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:46:15,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:46:15,809 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-13 12:46:15,816 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:46:15,816 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:46:15,847 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:46:15,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:46:15,848 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:46:15,848 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:46:15,848 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:46:15,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:46:15,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:46:15,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:46:15,851 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:46:15,851 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:46:15,851 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:46:15,852 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:46:15,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:46:15,852 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:46:15,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:46:15,852 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:46:15,855 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:46:15,855 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:46:15,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:46:15,856 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:46:15,856 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-13 12:46:15,856 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:46:15,856 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-13 12:46:15,856 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:46:15,856 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:46:15,856 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:46:15,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:46:15,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:46:15,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:46:15,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:46:15,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:46:15,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:46:15,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:46:15,857 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-13 12:46:15,858 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-13 12:46:15,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:46:15,859 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:46:15,859 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:46:15,860 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:46:15,867 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-13 12:46:15,867 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2c89f010e0f73e8ba7e81bb150b82b70d39c0827c0d616dd2c3347839d51e01 [2024-10-13 12:46:16,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:46:16,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:46:16,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:46:16,155 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:46:16,156 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:46:16,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c [2024-10-13 12:46:17,485 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:46:17,676 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:46:17,676 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c [2024-10-13 12:46:17,686 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9129f0f8d/49f4a4a2cb4e447485685be9bc6923e8/FLAG026d31e36 [2024-10-13 12:46:17,701 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9129f0f8d/49f4a4a2cb4e447485685be9bc6923e8 [2024-10-13 12:46:17,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:46:17,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:46:17,705 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:46:17,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:46:17,711 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:46:17,712 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:46:17" (1/1) ... [2024-10-13 12:46:17,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f226314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:17, skipping insertion in model container [2024-10-13 12:46:17,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:46:17" (1/1) ... [2024-10-13 12:46:17,735 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:46:17,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:46:17,946 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-13 12:46:17,950 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:46:17,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:46:17,982 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:46:18,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:46:18,030 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:46:18,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:18 WrapperNode [2024-10-13 12:46:18,030 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:46:18,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:46:18,031 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:46:18,031 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:46:18,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:18" (1/1) ... [2024-10-13 12:46:18,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:18" (1/1) ... [2024-10-13 12:46:18,083 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 17, calls inlined = 19, statements flattened = 234 [2024-10-13 12:46:18,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:46:18,084 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:46:18,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:46:18,084 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:46:18,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:18" (1/1) ... [2024-10-13 12:46:18,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:18" (1/1) ... [2024-10-13 12:46:18,100 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:18" (1/1) ... [2024-10-13 12:46:18,130 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-10-13 12:46:18,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:18" (1/1) ... [2024-10-13 12:46:18,131 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:18" (1/1) ... [2024-10-13 12:46:18,148 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:18" (1/1) ... [2024-10-13 12:46:18,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:18" (1/1) ... [2024-10-13 12:46:18,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:18" (1/1) ... [2024-10-13 12:46:18,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:18" (1/1) ... [2024-10-13 12:46:18,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:46:18,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:46:18,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:46:18,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:46:18,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:18" (1/1) ... [2024-10-13 12:46:18,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:46:18,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:46:18,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 12:46:18,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 12:46:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:46:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-13 12:46:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-13 12:46:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-13 12:46:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-13 12:46:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-13 12:46:18,243 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-13 12:46:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-13 12:46:18,243 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-13 12:46:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-13 12:46:18,244 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-13 12:46:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 12:46:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 12:46:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 12:46:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:46:18,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:46:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-13 12:46:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-13 12:46:18,246 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 12:46:18,373 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:46:18,375 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:46:18,870 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:46:18,871 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:46:19,170 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:46:19,170 INFO L314 CfgBuilder]: Removed 5 assume(true) statements. [2024-10-13 12:46:19,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:46:19 BoogieIcfgContainer [2024-10-13 12:46:19,171 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:46:19,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:46:19,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:46:19,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:46:19,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:46:17" (1/3) ... [2024-10-13 12:46:19,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2895ed37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:46:19, skipping insertion in model container [2024-10-13 12:46:19,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:46:18" (2/3) ... [2024-10-13 12:46:19,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2895ed37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:46:19, skipping insertion in model container [2024-10-13 12:46:19,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:46:19" (3/3) ... [2024-10-13 12:46:19,178 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-queue-add-3.wvr.c [2024-10-13 12:46:19,192 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:46:19,192 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-13 12:46:19,192 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:46:19,256 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-13 12:46:19,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 145 flow [2024-10-13 12:46:19,328 INFO L124 PetriNetUnfolderBase]: 7/59 cut-off events. [2024-10-13 12:46:19,328 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-13 12:46:19,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 59 events. 7/59 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 158 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-10-13 12:46:19,332 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 62 transitions, 145 flow [2024-10-13 12:46:19,335 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 58 transitions, 134 flow [2024-10-13 12:46:19,346 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:46:19,352 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;@4a894945, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:46:19,353 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-10-13 12:46:19,356 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:46:19,357 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-10-13 12:46:19,357 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:46:19,357 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:46:19,358 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-13 12:46:19,358 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-10-13 12:46:19,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:46:19,363 INFO L85 PathProgramCache]: Analyzing trace with hash 729992, now seen corresponding path program 1 times [2024-10-13 12:46:19,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:46:19,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841006355] [2024-10-13 12:46:19,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:46:19,373 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 [2024-10-13 12:46:19,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:46:19,377 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-13 12:46:19,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:46:19,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:46:19,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:46:19,508 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 [2024-10-13 12:46:19,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:46:19,521 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:46:19,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:46:19,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841006355] [2024-10-13 12:46:19,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841006355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:46:19,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:46:19,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:46:19,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222539458] [2024-10-13 12:46:19,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:46:19,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:46:19,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:46:19,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:46:19,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:46:19,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 62 [2024-10-13 12:46:19,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 58 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-10-13 12:46:19,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:46:19,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 62 [2024-10-13 12:46:19,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:46:20,169 INFO L124 PetriNetUnfolderBase]: 3101/5050 cut-off events. [2024-10-13 12:46:20,169 INFO L125 PetriNetUnfolderBase]: For 245/245 co-relation queries the response was YES. [2024-10-13 12:46:20,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9526 conditions, 5050 events. 3101/5050 cut-off events. For 245/245 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 33141 event pairs, 2731 based on Foata normal form. 337/3583 useless extension candidates. Maximal degree in co-relation 9119. Up to 4203 conditions per place. [2024-10-13 12:46:20,199 INFO L140 encePairwiseOnDemand]: 55/62 looper letters, 38 selfloop transitions, 2 changer transitions 0/52 dead transitions. [2024-10-13 12:46:20,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 52 transitions, 202 flow [2024-10-13 12:46:20,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:46:20,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:46:20,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-10-13 12:46:20,209 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-10-13 12:46:20,211 INFO L175 Difference]: Start difference. First operand has 61 places, 58 transitions, 134 flow. Second operand 3 states and 93 transitions. [2024-10-13 12:46:20,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 52 transitions, 202 flow [2024-10-13 12:46:20,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 190 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-13 12:46:20,217 INFO L231 Difference]: Finished difference. Result has 53 places, 52 transitions, 114 flow [2024-10-13 12:46:20,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2024-10-13 12:46:20,221 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -8 predicate places. [2024-10-13 12:46:20,221 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 52 transitions, 114 flow [2024-10-13 12:46:20,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-10-13 12:46:20,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:46:20,222 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-13 12:46:20,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:20,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:20,423 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-10-13 12:46:20,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:46:20,424 INFO L85 PathProgramCache]: Analyzing trace with hash 729993, now seen corresponding path program 1 times [2024-10-13 12:46:20,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:46:20,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251874123] [2024-10-13 12:46:20,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:46:20,425 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 [2024-10-13 12:46:20,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:46:20,456 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-13 12:46:20,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:46:20,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 12:46:20,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:46:20,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-13 12:46:20,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:46:20,682 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:46:20,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:46:20,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251874123] [2024-10-13 12:46:20,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [251874123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:46:20,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:46:20,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:46:20,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345851849] [2024-10-13 12:46:20,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:46:20,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:46:20,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:46:20,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:46:20,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:46:20,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 62 [2024-10-13 12:46:20,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-10-13 12:46:20,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:46:20,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 62 [2024-10-13 12:46:20,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:46:21,290 INFO L124 PetriNetUnfolderBase]: 3103/5056 cut-off events. [2024-10-13 12:46:21,290 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2024-10-13 12:46:21,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9379 conditions, 5056 events. 3103/5056 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 33214 event pairs, 2731 based on Foata normal form. 0/3250 useless extension candidates. Maximal degree in co-relation 9343. Up to 4212 conditions per place. [2024-10-13 12:46:21,314 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 41 selfloop transitions, 7 changer transitions 0/58 dead transitions. [2024-10-13 12:46:21,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 58 transitions, 224 flow [2024-10-13 12:46:21,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:46:21,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:46:21,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 114 transitions. [2024-10-13 12:46:21,320 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4596774193548387 [2024-10-13 12:46:21,320 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 114 flow. Second operand 4 states and 114 transitions. [2024-10-13 12:46:21,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 58 transitions, 224 flow [2024-10-13 12:46:21,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 58 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:46:21,322 INFO L231 Difference]: Finished difference. Result has 57 places, 58 transitions, 166 flow [2024-10-13 12:46:21,322 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=57, PETRI_TRANSITIONS=58} [2024-10-13 12:46:21,323 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-10-13 12:46:21,323 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 58 transitions, 166 flow [2024-10-13 12:46:21,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-10-13 12:46:21,323 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:46:21,323 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2024-10-13 12:46:21,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:21,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:21,527 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-10-13 12:46:21,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:46:21,528 INFO L85 PathProgramCache]: Analyzing trace with hash 701546931, now seen corresponding path program 1 times [2024-10-13 12:46:21,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:46:21,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423050649] [2024-10-13 12:46:21,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:46:21,531 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 [2024-10-13 12:46:21,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:46:21,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-13 12:46:21,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:46:21,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-13 12:46:21,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:46:21,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-13 12:46:21,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:46:21,720 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:46:21,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:46:21,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:46:21,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423050649] [2024-10-13 12:46:21,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423050649] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:46:21,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 12:46:21,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2024-10-13 12:46:21,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738306048] [2024-10-13 12:46:21,917 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 12:46:21,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 12:46:21,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:46:21,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 12:46:21,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-13 12:46:22,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 62 [2024-10-13 12:46:22,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 58 transitions, 166 flow. Second operand has 10 states, 10 states have (on average 17.0) internal successors, (170), 10 states have internal predecessors, (170), 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) [2024-10-13 12:46:22,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:46:22,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 62 [2024-10-13 12:46:22,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:46:23,215 INFO L124 PetriNetUnfolderBase]: 3109/5074 cut-off events. [2024-10-13 12:46:23,215 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-10-13 12:46:23,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9457 conditions, 5074 events. 3109/5074 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 33307 event pairs, 2731 based on Foata normal form. 0/3266 useless extension candidates. Maximal degree in co-relation 9354. Up to 4215 conditions per place. [2024-10-13 12:46:23,251 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 41 selfloop transitions, 25 changer transitions 0/76 dead transitions. [2024-10-13 12:46:23,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 76 transitions, 376 flow [2024-10-13 12:46:23,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:46:23,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 12:46:23,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 232 transitions. [2024-10-13 12:46:23,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3741935483870968 [2024-10-13 12:46:23,257 INFO L175 Difference]: Start difference. First operand has 57 places, 58 transitions, 166 flow. Second operand 10 states and 232 transitions. [2024-10-13 12:46:23,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 76 transitions, 376 flow [2024-10-13 12:46:23,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 76 transitions, 376 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 12:46:23,259 INFO L231 Difference]: Finished difference. Result has 69 places, 76 transitions, 328 flow [2024-10-13 12:46:23,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=328, PETRI_PLACES=69, PETRI_TRANSITIONS=76} [2024-10-13 12:46:23,259 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-10-13 12:46:23,260 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 76 transitions, 328 flow [2024-10-13 12:46:23,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.0) internal successors, (170), 10 states have internal predecessors, (170), 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) [2024-10-13 12:46:23,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:46:23,260 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:46:23,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:23,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:23,463 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-10-13 12:46:23,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:46:23,464 INFO L85 PathProgramCache]: Analyzing trace with hash -101122946, now seen corresponding path program 1 times [2024-10-13 12:46:23,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:46:23,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425127019] [2024-10-13 12:46:23,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:46:23,465 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 [2024-10-13 12:46:23,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:46:23,467 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-13 12:46:23,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:46:23,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 12:46:23,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:46:23,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:46:23,567 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:46:23,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:46:23,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425127019] [2024-10-13 12:46:23,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425127019] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:46:23,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:46:23,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:46:23,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717857213] [2024-10-13 12:46:23,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:46:23,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:46:23,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:46:23,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:46:23,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:46:23,583 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 62 [2024-10-13 12:46:23,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 76 transitions, 328 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-10-13 12:46:23,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:46:23,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 62 [2024-10-13 12:46:23,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:46:24,179 INFO L124 PetriNetUnfolderBase]: 3252/5362 cut-off events. [2024-10-13 12:46:24,179 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-10-13 12:46:24,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10071 conditions, 5362 events. 3252/5362 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 35133 event pairs, 2858 based on Foata normal form. 98/3632 useless extension candidates. Maximal degree in co-relation 9983. Up to 4230 conditions per place. [2024-10-13 12:46:24,204 INFO L140 encePairwiseOnDemand]: 50/62 looper letters, 89 selfloop transitions, 3 changer transitions 1/105 dead transitions. [2024-10-13 12:46:24,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 105 transitions, 647 flow [2024-10-13 12:46:24,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:46:24,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:46:24,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2024-10-13 12:46:24,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5685483870967742 [2024-10-13 12:46:24,206 INFO L175 Difference]: Start difference. First operand has 69 places, 76 transitions, 328 flow. Second operand 4 states and 141 transitions. [2024-10-13 12:46:24,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 105 transitions, 647 flow [2024-10-13 12:46:24,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 105 transitions, 553 flow, removed 29 selfloop flow, removed 4 redundant places. [2024-10-13 12:46:24,209 INFO L231 Difference]: Finished difference. Result has 69 places, 76 transitions, 289 flow [2024-10-13 12:46:24,210 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=289, PETRI_PLACES=69, PETRI_TRANSITIONS=76} [2024-10-13 12:46:24,210 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-10-13 12:46:24,210 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 76 transitions, 289 flow [2024-10-13 12:46:24,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-10-13 12:46:24,210 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:46:24,211 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:46:24,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:24,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:24,414 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-10-13 12:46:24,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:46:24,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1846506920, now seen corresponding path program 1 times [2024-10-13 12:46:24,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:46:24,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119272898] [2024-10-13 12:46:24,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:46:24,415 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 [2024-10-13 12:46:24,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:46:24,417 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-13 12:46:24,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:46:24,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-13 12:46:24,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:46:24,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-13 12:46:24,584 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 [2024-10-13 12:46:24,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 12:46:24,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-13 12:46:24,770 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 12:46:24,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-13 12:46:24,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:46:24,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:46:25,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:46:25,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:46:25,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119272898] [2024-10-13 12:46:25,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119272898] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:46:25,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 12:46:25,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2024-10-13 12:46:25,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340997077] [2024-10-13 12:46:25,454 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 12:46:25,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 12:46:25,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:46:25,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 12:46:25,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-13 12:46:25,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 62 [2024-10-13 12:46:25,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 76 transitions, 289 flow. Second operand has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 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) [2024-10-13 12:46:25,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:46:25,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 62 [2024-10-13 12:46:25,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:46:31,240 INFO L124 PetriNetUnfolderBase]: 7668/12526 cut-off events. [2024-10-13 12:46:31,240 INFO L125 PetriNetUnfolderBase]: For 1181/1181 co-relation queries the response was YES. [2024-10-13 12:46:31,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26026 conditions, 12526 events. 7668/12526 cut-off events. For 1181/1181 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 90832 event pairs, 6710 based on Foata normal form. 0/8519 useless extension candidates. Maximal degree in co-relation 25445. Up to 4215 conditions per place. [2024-10-13 12:46:31,323 INFO L140 encePairwiseOnDemand]: 52/62 looper letters, 117 selfloop transitions, 46 changer transitions 0/173 dead transitions. [2024-10-13 12:46:31,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 173 transitions, 960 flow [2024-10-13 12:46:31,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 12:46:31,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-13 12:46:31,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 333 transitions. [2024-10-13 12:46:31,326 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3836405529953917 [2024-10-13 12:46:31,326 INFO L175 Difference]: Start difference. First operand has 69 places, 76 transitions, 289 flow. Second operand 14 states and 333 transitions. [2024-10-13 12:46:31,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 173 transitions, 960 flow [2024-10-13 12:46:31,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 173 transitions, 956 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-13 12:46:31,333 INFO L231 Difference]: Finished difference. Result has 88 places, 102 transitions, 598 flow [2024-10-13 12:46:31,333 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=598, PETRI_PLACES=88, PETRI_TRANSITIONS=102} [2024-10-13 12:46:31,335 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 27 predicate places. [2024-10-13 12:46:31,336 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 102 transitions, 598 flow [2024-10-13 12:46:31,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 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) [2024-10-13 12:46:31,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:46:31,336 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:46:31,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-10-13 12:46:31,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:31,537 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-10-13 12:46:31,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:46:31,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1846506919, now seen corresponding path program 1 times [2024-10-13 12:46:31,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:46:31,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985139833] [2024-10-13 12:46:31,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:46:31,540 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 [2024-10-13 12:46:31,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:46:31,543 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-13 12:46:31,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:46:31,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 12:46:31,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:46:31,619 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 [2024-10-13 12:46:31,648 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-10-13 12:46:31,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2024-10-13 12:46:31,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 12:46:31,685 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:46:31,686 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:46:31,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985139833] [2024-10-13 12:46:31,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985139833] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:46:31,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:46:31,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:46:31,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943273027] [2024-10-13 12:46:31,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:46:31,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:46:31,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:46:31,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:46:31,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:46:31,712 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 62 [2024-10-13 12:46:31,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 102 transitions, 598 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-10-13 12:46:31,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:46:31,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 62 [2024-10-13 12:46:31,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:46:32,584 INFO L124 PetriNetUnfolderBase]: 5273/8621 cut-off events. [2024-10-13 12:46:32,585 INFO L125 PetriNetUnfolderBase]: For 2945/2945 co-relation queries the response was YES. [2024-10-13 12:46:32,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18310 conditions, 8621 events. 5273/8621 cut-off events. For 2945/2945 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 58507 event pairs, 4551 based on Foata normal form. 0/6741 useless extension candidates. Maximal degree in co-relation 18217. Up to 7243 conditions per place. [2024-10-13 12:46:32,716 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 72 selfloop transitions, 15 changer transitions 0/99 dead transitions. [2024-10-13 12:46:32,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 99 transitions, 760 flow [2024-10-13 12:46:32,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:46:32,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:46:32,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2024-10-13 12:46:32,725 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3870967741935484 [2024-10-13 12:46:32,725 INFO L175 Difference]: Start difference. First operand has 88 places, 102 transitions, 598 flow. Second operand 5 states and 120 transitions. [2024-10-13 12:46:32,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 99 transitions, 760 flow [2024-10-13 12:46:32,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 99 transitions, 744 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:46:32,733 INFO L231 Difference]: Finished difference. Result has 87 places, 99 transitions, 600 flow [2024-10-13 12:46:32,735 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=600, PETRI_PLACES=87, PETRI_TRANSITIONS=99} [2024-10-13 12:46:32,736 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 26 predicate places. [2024-10-13 12:46:32,736 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 99 transitions, 600 flow [2024-10-13 12:46:32,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-10-13 12:46:32,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:46:32,736 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1] [2024-10-13 12:46:32,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)] Ended with exit code 0 [2024-10-13 12:46:32,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:32,937 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-10-13 12:46:32,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:46:32,937 INFO L85 PathProgramCache]: Analyzing trace with hash 890948913, now seen corresponding path program 2 times [2024-10-13 12:46:32,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:46:32,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078440064] [2024-10-13 12:46:32,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 12:46:32,938 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 [2024-10-13 12:46:32,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:46:32,940 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-13 12:46:32,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-13 12:46:33,007 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 12:46:33,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:46:33,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-13 12:46:33,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:46:33,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-13 12:46:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:46:33,228 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:46:33,751 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:46:33,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:46:33,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078440064] [2024-10-13 12:46:33,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078440064] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:46:33,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 12:46:33,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2024-10-13 12:46:33,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671812707] [2024-10-13 12:46:33,755 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 12:46:33,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 12:46:33,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:46:33,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 12:46:33,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-10-13 12:46:33,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 62 [2024-10-13 12:46:33,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 99 transitions, 600 flow. Second operand has 14 states, 14 states have (on average 17.571428571428573) internal successors, (246), 14 states have internal predecessors, (246), 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) [2024-10-13 12:46:33,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:46:33,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 62 [2024-10-13 12:46:33,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:46:37,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:46:38,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:46:39,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:46:43,973 INFO L124 PetriNetUnfolderBase]: 5303/8711 cut-off events. [2024-10-13 12:46:43,974 INFO L125 PetriNetUnfolderBase]: For 3128/3128 co-relation queries the response was YES. [2024-10-13 12:46:43,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18774 conditions, 8711 events. 5303/8711 cut-off events. For 3128/3128 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 59744 event pairs, 4551 based on Foata normal form. 30/6861 useless extension candidates. Maximal degree in co-relation 18583. Up to 7288 conditions per place. [2024-10-13 12:46:44,057 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 42 selfloop transitions, 107 changer transitions 0/159 dead transitions. [2024-10-13 12:46:44,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 159 transitions, 1378 flow [2024-10-13 12:46:44,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-13 12:46:44,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-13 12:46:44,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 463 transitions. [2024-10-13 12:46:44,060 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33944281524926684 [2024-10-13 12:46:44,060 INFO L175 Difference]: Start difference. First operand has 87 places, 99 transitions, 600 flow. Second operand 22 states and 463 transitions. [2024-10-13 12:46:44,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 159 transitions, 1378 flow [2024-10-13 12:46:44,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 159 transitions, 1339 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 12:46:44,069 INFO L231 Difference]: Finished difference. Result has 111 places, 159 transitions, 1345 flow [2024-10-13 12:46:44,069 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1345, PETRI_PLACES=111, PETRI_TRANSITIONS=159} [2024-10-13 12:46:44,069 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 50 predicate places. [2024-10-13 12:46:44,069 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 159 transitions, 1345 flow [2024-10-13 12:46:44,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.571428571428573) internal successors, (246), 14 states have internal predecessors, (246), 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) [2024-10-13 12:46:44,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:46:44,070 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:46:44,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-10-13 12:46:44,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:44,273 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-10-13 12:46:44,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:46:44,273 INFO L85 PathProgramCache]: Analyzing trace with hash -398417784, now seen corresponding path program 1 times [2024-10-13 12:46:44,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:46:44,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566452022] [2024-10-13 12:46:44,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:46:44,274 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 [2024-10-13 12:46:44,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:46:44,275 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-13 12:46:44,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-13 12:46:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:46:44,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 12:46:44,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:46:44,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:46:44,381 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:46:44,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:46:44,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566452022] [2024-10-13 12:46:44,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566452022] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:46:44,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:46:44,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:46:44,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245732545] [2024-10-13 12:46:44,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:46:44,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:46:44,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:46:44,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:46:44,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:46:44,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 62 [2024-10-13 12:46:44,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 159 transitions, 1345 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:46:44,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:46:44,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 62 [2024-10-13 12:46:44,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:46:45,388 INFO L124 PetriNetUnfolderBase]: 5279/8727 cut-off events. [2024-10-13 12:46:45,388 INFO L125 PetriNetUnfolderBase]: For 3615/3615 co-relation queries the response was YES. [2024-10-13 12:46:45,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19672 conditions, 8727 events. 5279/8727 cut-off events. For 3615/3615 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 58446 event pairs, 1974 based on Foata normal form. 224/6941 useless extension candidates. Maximal degree in co-relation 19440. Up to 5406 conditions per place. [2024-10-13 12:46:45,527 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 161 selfloop transitions, 2 changer transitions 2/177 dead transitions. [2024-10-13 12:46:45,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 177 transitions, 1737 flow [2024-10-13 12:46:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:46:45,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:46:45,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2024-10-13 12:46:45,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6021505376344086 [2024-10-13 12:46:45,530 INFO L175 Difference]: Start difference. First operand has 111 places, 159 transitions, 1345 flow. Second operand 3 states and 112 transitions. [2024-10-13 12:46:45,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 177 transitions, 1737 flow [2024-10-13 12:46:45,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 177 transitions, 1457 flow, removed 87 selfloop flow, removed 9 redundant places. [2024-10-13 12:46:45,545 INFO L231 Difference]: Finished difference. Result has 105 places, 158 transitions, 1063 flow [2024-10-13 12:46:45,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=1065, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1063, PETRI_PLACES=105, PETRI_TRANSITIONS=158} [2024-10-13 12:46:45,546 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 44 predicate places. [2024-10-13 12:46:45,546 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 158 transitions, 1063 flow [2024-10-13 12:46:45,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:46:45,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:46:45,546 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:46:45,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-10-13 12:46:45,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:45,747 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-10-13 12:46:45,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:46:45,748 INFO L85 PathProgramCache]: Analyzing trace with hash -960982002, now seen corresponding path program 1 times [2024-10-13 12:46:45,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:46:45,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775459606] [2024-10-13 12:46:45,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:46:45,748 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 [2024-10-13 12:46:45,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:46:45,749 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-13 12:46:45,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (10)] Waiting until timeout for monitored process [2024-10-13 12:46:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:46:45,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 12:46:45,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:46:45,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 12:46:45,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:46:45,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:46:45,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775459606] [2024-10-13 12:46:45,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775459606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:46:45,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:46:45,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:46:45,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921564188] [2024-10-13 12:46:45,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:46:45,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:46:45,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:46:45,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:46:45,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:46:45,827 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 62 [2024-10-13 12:46:45,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 158 transitions, 1063 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-10-13 12:46:45,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:46:45,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 62 [2024-10-13 12:46:45,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:46:46,563 INFO L124 PetriNetUnfolderBase]: 4883/8135 cut-off events. [2024-10-13 12:46:46,563 INFO L125 PetriNetUnfolderBase]: For 3872/3964 co-relation queries the response was YES. [2024-10-13 12:46:46,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19384 conditions, 8135 events. 4883/8135 cut-off events. For 3872/3964 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 51915 event pairs, 2076 based on Foata normal form. 82/6884 useless extension candidates. Maximal degree in co-relation 19181. Up to 6432 conditions per place. [2024-10-13 12:46:46,600 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 155 selfloop transitions, 3 changer transitions 0/170 dead transitions. [2024-10-13 12:46:46,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 170 transitions, 1421 flow [2024-10-13 12:46:46,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:46:46,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:46:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-10-13 12:46:46,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5645161290322581 [2024-10-13 12:46:46,603 INFO L175 Difference]: Start difference. First operand has 105 places, 158 transitions, 1063 flow. Second operand 3 states and 105 transitions. [2024-10-13 12:46:46,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 170 transitions, 1421 flow [2024-10-13 12:46:46,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 170 transitions, 1419 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:46:46,625 INFO L231 Difference]: Finished difference. Result has 107 places, 160 transitions, 1086 flow [2024-10-13 12:46:46,626 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=1061, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1086, PETRI_PLACES=107, PETRI_TRANSITIONS=160} [2024-10-13 12:46:46,627 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 46 predicate places. [2024-10-13 12:46:46,627 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 160 transitions, 1086 flow [2024-10-13 12:46:46,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-10-13 12:46:46,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:46:46,633 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:46:46,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (10)] Forceful destruction successful, exit code 0 [2024-10-13 12:46:46,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:46,834 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-10-13 12:46:46,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:46:46,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1716228646, now seen corresponding path program 2 times [2024-10-13 12:46:46,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:46:46,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701281688] [2024-10-13 12:46:46,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 12:46:46,835 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 [2024-10-13 12:46:46,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:46:46,839 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-13 12:46:46,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (11)] Waiting until timeout for monitored process [2024-10-13 12:46:46,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 12:46:46,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:46:46,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-13 12:46:46,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:46:46,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-13 12:46:46,922 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 [2024-10-13 12:46:47,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 12:46:47,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-13 12:46:47,042 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 12:46:47,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-13 12:46:47,083 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-13 12:46:47,083 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:46:47,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:46:47,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701281688] [2024-10-13 12:46:47,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701281688] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:46:47,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:46:47,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:46:47,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155058652] [2024-10-13 12:46:47,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:46:47,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:46:47,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:46:47,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:46:47,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:46:47,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 62 [2024-10-13 12:46:47,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 160 transitions, 1086 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-10-13 12:46:47,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:46:47,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 62 [2024-10-13 12:46:47,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:46:47,713 INFO L124 PetriNetUnfolderBase]: 4042/6898 cut-off events. [2024-10-13 12:46:47,713 INFO L125 PetriNetUnfolderBase]: For 5922/5922 co-relation queries the response was YES. [2024-10-13 12:46:47,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16432 conditions, 6898 events. 4042/6898 cut-off events. For 5922/5922 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 43940 event pairs, 2987 based on Foata normal form. 301/6068 useless extension candidates. Maximal degree in co-relation 16228. Up to 5810 conditions per place. [2024-10-13 12:46:47,739 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 133 selfloop transitions, 12 changer transitions 0/157 dead transitions. [2024-10-13 12:46:47,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 157 transitions, 1350 flow [2024-10-13 12:46:47,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:46:47,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:46:47,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-10-13 12:46:47,740 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40725806451612906 [2024-10-13 12:46:47,740 INFO L175 Difference]: Start difference. First operand has 107 places, 160 transitions, 1086 flow. Second operand 4 states and 101 transitions. [2024-10-13 12:46:47,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 157 transitions, 1350 flow [2024-10-13 12:46:47,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 157 transitions, 1320 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-10-13 12:46:47,751 INFO L231 Difference]: Finished difference. Result has 105 places, 157 transitions, 1054 flow [2024-10-13 12:46:47,752 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1054, PETRI_PLACES=105, PETRI_TRANSITIONS=157} [2024-10-13 12:46:47,753 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 44 predicate places. [2024-10-13 12:46:47,753 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 157 transitions, 1054 flow [2024-10-13 12:46:47,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-10-13 12:46:47,754 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:46:47,754 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:46:47,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (11)] Ended with exit code 0 [2024-10-13 12:46:47,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:47,954 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-10-13 12:46:47,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:46:47,955 INFO L85 PathProgramCache]: Analyzing trace with hash -2075139649, now seen corresponding path program 1 times [2024-10-13 12:46:47,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:46:47,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399921074] [2024-10-13 12:46:47,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:46:47,956 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 [2024-10-13 12:46:47,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:46:47,958 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-13 12:46:47,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (12)] Waiting until timeout for monitored process [2024-10-13 12:46:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:46:48,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 12:46:48,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:46:48,021 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 [2024-10-13 12:46:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 12:46:48,048 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:46:48,048 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:46:48,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399921074] [2024-10-13 12:46:48,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399921074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:46:48,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:46:48,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:46:48,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060958566] [2024-10-13 12:46:48,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:46:48,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:46:48,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:46:48,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:46:48,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:46:48,074 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 62 [2024-10-13 12:46:48,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 157 transitions, 1054 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:46:48,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:46:48,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 62 [2024-10-13 12:46:48,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:46:48,524 INFO L124 PetriNetUnfolderBase]: 2980/5311 cut-off events. [2024-10-13 12:46:48,525 INFO L125 PetriNetUnfolderBase]: For 1469/1469 co-relation queries the response was YES. [2024-10-13 12:46:48,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11841 conditions, 5311 events. 2980/5311 cut-off events. For 1469/1469 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 34057 event pairs, 2159 based on Foata normal form. 0/4798 useless extension candidates. Maximal degree in co-relation 11647. Up to 4223 conditions per place. [2024-10-13 12:46:48,550 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 129 selfloop transitions, 14 changer transitions 0/155 dead transitions. [2024-10-13 12:46:48,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 155 transitions, 1334 flow [2024-10-13 12:46:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:46:48,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:46:48,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2024-10-13 12:46:48,552 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3951612903225806 [2024-10-13 12:46:48,552 INFO L175 Difference]: Start difference. First operand has 105 places, 157 transitions, 1054 flow. Second operand 4 states and 98 transitions. [2024-10-13 12:46:48,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 155 transitions, 1334 flow [2024-10-13 12:46:48,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 155 transitions, 1321 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:46:48,557 INFO L231 Difference]: Finished difference. Result has 104 places, 155 transitions, 1063 flow [2024-10-13 12:46:48,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=1035, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1063, PETRI_PLACES=104, PETRI_TRANSITIONS=155} [2024-10-13 12:46:48,558 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 43 predicate places. [2024-10-13 12:46:48,558 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 155 transitions, 1063 flow [2024-10-13 12:46:48,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:46:48,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:46:48,558 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:46:48,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (12)] Ended with exit code 0 [2024-10-13 12:46:48,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:48,762 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-10-13 12:46:48,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:46:48,762 INFO L85 PathProgramCache]: Analyzing trace with hash -2075139648, now seen corresponding path program 1 times [2024-10-13 12:46:48,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:46:48,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098589543] [2024-10-13 12:46:48,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:46:48,763 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 [2024-10-13 12:46:48,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:46:48,765 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-13 12:46:48,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (13)] Waiting until timeout for monitored process [2024-10-13 12:46:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:46:48,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 12:46:48,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:46:48,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 12:46:48,875 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:46:48,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:46:48,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098589543] [2024-10-13 12:46:48,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098589543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:46:48,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:46:48,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:46:48,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960172013] [2024-10-13 12:46:48,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:46:48,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:46:48,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:46:48,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:46:48,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:46:48,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 62 [2024-10-13 12:46:48,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 155 transitions, 1063 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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) [2024-10-13 12:46:48,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:46:48,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 62 [2024-10-13 12:46:48,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:46:49,505 INFO L124 PetriNetUnfolderBase]: 3703/6655 cut-off events. [2024-10-13 12:46:49,506 INFO L125 PetriNetUnfolderBase]: For 1956/1956 co-relation queries the response was YES. [2024-10-13 12:46:49,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14871 conditions, 6655 events. 3703/6655 cut-off events. For 1956/1956 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 44139 event pairs, 2765 based on Foata normal form. 192/6334 useless extension candidates. Maximal degree in co-relation 14665. Up to 4328 conditions per place. [2024-10-13 12:46:49,530 INFO L140 encePairwiseOnDemand]: 57/62 looper letters, 126 selfloop transitions, 15 changer transitions 20/173 dead transitions. [2024-10-13 12:46:49,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 173 transitions, 1439 flow [2024-10-13 12:46:49,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:46:49,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:46:49,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-10-13 12:46:49,531 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5040322580645161 [2024-10-13 12:46:49,531 INFO L175 Difference]: Start difference. First operand has 104 places, 155 transitions, 1063 flow. Second operand 4 states and 125 transitions. [2024-10-13 12:46:49,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 173 transitions, 1439 flow [2024-10-13 12:46:49,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 173 transitions, 1424 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:46:49,539 INFO L231 Difference]: Finished difference. Result has 106 places, 153 transitions, 1063 flow [2024-10-13 12:46:49,539 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1063, PETRI_PLACES=106, PETRI_TRANSITIONS=153} [2024-10-13 12:46:49,540 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 45 predicate places. [2024-10-13 12:46:49,540 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 153 transitions, 1063 flow [2024-10-13 12:46:49,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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) [2024-10-13 12:46:49,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:46:49,540 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:46:49,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (13)] Forceful destruction successful, exit code 0 [2024-10-13 12:46:49,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:49,743 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-10-13 12:46:49,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:46:49,743 INFO L85 PathProgramCache]: Analyzing trace with hash -154382887, now seen corresponding path program 1 times [2024-10-13 12:46:49,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:46:49,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365369642] [2024-10-13 12:46:49,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:46:49,744 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 [2024-10-13 12:46:49,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:46:49,748 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-13 12:46:49,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (14)] Waiting until timeout for monitored process [2024-10-13 12:46:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:46:49,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 12:46:49,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:46:49,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-13 12:46:50,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 12:46:50,045 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:46:50,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 12:46:50,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:46:50,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365369642] [2024-10-13 12:46:50,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365369642] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:46:50,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 12:46:50,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-13 12:46:50,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829677097] [2024-10-13 12:46:50,657 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 12:46:50,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 12:46:50,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:46:50,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 12:46:50,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-13 12:46:51,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 62 [2024-10-13 12:46:51,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 153 transitions, 1063 flow. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-10-13 12:46:51,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:46:51,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 62 [2024-10-13 12:46:51,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:46:54,618 INFO L124 PetriNetUnfolderBase]: 6983/12682 cut-off events. [2024-10-13 12:46:54,618 INFO L125 PetriNetUnfolderBase]: For 4186/4186 co-relation queries the response was YES. [2024-10-13 12:46:54,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28040 conditions, 12682 events. 6983/12682 cut-off events. For 4186/4186 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 95624 event pairs, 5050 based on Foata normal form. 516/12169 useless extension candidates. Maximal degree in co-relation 27827. Up to 4254 conditions per place. [2024-10-13 12:46:54,702 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 103 selfloop transitions, 92 changer transitions 0/205 dead transitions. [2024-10-13 12:46:54,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 205 transitions, 1613 flow [2024-10-13 12:46:54,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 12:46:54,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 12:46:54,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 222 transitions. [2024-10-13 12:46:54,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4475806451612903 [2024-10-13 12:46:54,704 INFO L175 Difference]: Start difference. First operand has 106 places, 153 transitions, 1063 flow. Second operand 8 states and 222 transitions. [2024-10-13 12:46:54,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 205 transitions, 1613 flow [2024-10-13 12:46:54,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 205 transitions, 1586 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-13 12:46:54,721 INFO L231 Difference]: Finished difference. Result has 110 places, 153 transitions, 1236 flow [2024-10-13 12:46:54,721 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=1040, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1236, PETRI_PLACES=110, PETRI_TRANSITIONS=153} [2024-10-13 12:46:54,722 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 49 predicate places. [2024-10-13 12:46:54,722 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 153 transitions, 1236 flow [2024-10-13 12:46:54,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-10-13 12:46:54,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:46:54,722 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 1, 1] [2024-10-13 12:46:54,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (14)] Ended with exit code 0 [2024-10-13 12:46:54,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-10-13 12:46:54,926 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-10-13 12:46:54,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:46:54,926 INFO L85 PathProgramCache]: Analyzing trace with hash -2133819219, now seen corresponding path program 3 times [2024-10-13 12:46:54,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 12:46:54,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099218553] [2024-10-13 12:46:54,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 12:46:54,927 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 [2024-10-13 12:46:54,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 12:46:54,929 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-10-13 12:46:54,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (15)] Waiting until timeout for monitored process [2024-10-13 12:46:55,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-13 12:46:55,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:46:55,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-13 12:46:55,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:46:55,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-13 12:46:55,750 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:46:55,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:46:57,752 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:46:57,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 12:46:57,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099218553] [2024-10-13 12:46:57,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099218553] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:46:57,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 12:46:57,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 24 [2024-10-13 12:46:57,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155077051] [2024-10-13 12:46:57,753 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 12:46:57,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-13 12:46:57,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 12:46:57,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-13 12:46:57,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=477, Unknown=0, NotChecked=0, Total=650 [2024-10-13 12:46:58,903 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 62 [2024-10-13 12:46:58,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 153 transitions, 1236 flow. Second operand has 26 states, 26 states have (on average 17.76923076923077) internal successors, (462), 26 states have internal predecessors, (462), 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) [2024-10-13 12:46:58,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:46:58,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 62 [2024-10-13 12:46:58,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:47:08,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:09,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:12,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:14,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:15,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:16,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:18,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:19,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:23,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:24,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:26,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:27,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:29,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:31,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:32,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:33,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:36,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:37,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:38,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:40,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:42,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:44,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:47,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:48,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:51,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:52,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-13 12:47:54,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []