./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/chl-poker-hand-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 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/chl-poker-hand-symm.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 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:49:25,838 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:49:25,911 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:49:25,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:49:25,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:49:25,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:49:25,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:49:25,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:49:25,941 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:49:25,943 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:49:25,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:49:25,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:49:25,944 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:49:25,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:49:25,945 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:49:25,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:49:25,945 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:49:25,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:49:25,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:49:25,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:49:25,946 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:49:25,947 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:49:25,947 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:49:25,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:49:25,947 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:49:25,948 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:49:25,948 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:49:25,948 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:49:25,948 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:49:25,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:49:25,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:49:25,949 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:49:25,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:49:25,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:49:25,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:49:25,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:49:25,949 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:49:25,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:49:25,950 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:49:25,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:49:25,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:49:25,951 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:49:25,951 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 [2024-10-14 19:49:26,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:49:26,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:49:26,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:49:26,160 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:49:26,161 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:49:26,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2024-10-14 19:49:27,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:49:27,477 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:49:27,477 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2024-10-14 19:49:27,486 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e855c0544/3c8b5e8152e74bbb8382fbc3b4dd8fc2/FLAG5227b860f [2024-10-14 19:49:27,495 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e855c0544/3c8b5e8152e74bbb8382fbc3b4dd8fc2 [2024-10-14 19:49:27,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:49:27,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:49:27,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:49:27,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:49:27,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:49:27,504 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:49:27" (1/1) ... [2024-10-14 19:49:27,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e686f8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:27, skipping insertion in model container [2024-10-14 19:49:27,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:49:27" (1/1) ... [2024-10-14 19:49:27,531 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:49:27,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:49:27,801 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) [2024-10-14 19:49:27,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f0fabcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:27, skipping insertion in model container [2024-10-14 19:49:27,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:49:27,802 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-14 19:49:27,804 INFO L158 Benchmark]: Toolchain (without parser) took 304.92ms. Allocated memory is still 188.7MB. Free memory was 116.1MB in the beginning and 156.7MB in the end (delta: -40.6MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2024-10-14 19:49:27,804 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:49:27,805 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.11ms. Allocated memory is still 188.7MB. Free memory was 115.7MB in the beginning and 156.7MB in the end (delta: -41.0MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-10-14 19:49:27,806 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.11ms. Allocated memory is still 188.7MB. Free memory was 115.7MB in the beginning and 156.7MB in the end (delta: -41.0MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 244]: 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/chl-poker-hand-symm.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 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:49:29,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:49:29,369 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-14 19:49:29,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:49:29,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:49:29,401 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:49:29,402 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:49:29,402 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:49:29,403 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:49:29,403 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:49:29,404 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:49:29,404 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:49:29,405 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:49:29,405 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:49:29,407 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:49:29,407 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:49:29,408 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:49:29,408 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:49:29,408 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:49:29,408 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:49:29,408 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:49:29,409 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:49:29,409 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:49:29,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:49:29,410 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:49:29,410 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 19:49:29,410 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:49:29,411 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 19:49:29,411 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:49:29,411 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:49:29,411 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:49:29,411 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:49:29,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:49:29,412 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:49:29,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:49:29,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:49:29,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:49:29,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:49:29,413 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 19:49:29,414 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 19:49:29,414 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:49:29,414 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:49:29,414 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:49:29,414 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:49:29,414 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 19:49:29,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 [2024-10-14 19:49:29,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:49:29,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:49:29,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:49:29,694 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:49:29,694 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:49:29,696 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2024-10-14 19:49:30,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:49:31,127 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:49:31,128 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2024-10-14 19:49:31,139 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed7f4be86/68796aa15c3d43de8d5a5ebd4fbbf3ac/FLAGe5d686d32 [2024-10-14 19:49:31,151 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed7f4be86/68796aa15c3d43de8d5a5ebd4fbbf3ac [2024-10-14 19:49:31,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:49:31,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:49:31,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:49:31,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:49:31,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:49:31,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:49:31" (1/1) ... [2024-10-14 19:49:31,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c37d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31, skipping insertion in model container [2024-10-14 19:49:31,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:49:31" (1/1) ... [2024-10-14 19:49:31,204 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:49:31,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:49:31,481 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-14 19:49:31,486 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:49:31,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:49:31,569 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:49:31,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:49:31,635 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:49:31,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31 WrapperNode [2024-10-14 19:49:31,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:49:31,637 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:49:31,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:49:31,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:49:31,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31" (1/1) ... [2024-10-14 19:49:31,665 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31" (1/1) ... [2024-10-14 19:49:31,733 INFO L138 Inliner]: procedures = 26, calls = 298, calls flagged for inlining = 70, calls inlined = 98, statements flattened = 1545 [2024-10-14 19:49:31,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:49:31,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:49:31,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:49:31,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:49:31,744 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31" (1/1) ... [2024-10-14 19:49:31,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31" (1/1) ... [2024-10-14 19:49:31,751 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31" (1/1) ... [2024-10-14 19:49:31,802 INFO L175 MemorySlicer]: Split 186 memory accesses to 2 slices as follows [2, 184]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 8 writes are split as follows [0, 8]. [2024-10-14 19:49:31,803 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31" (1/1) ... [2024-10-14 19:49:31,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31" (1/1) ... [2024-10-14 19:49:31,828 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31" (1/1) ... [2024-10-14 19:49:31,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31" (1/1) ... [2024-10-14 19:49:31,839 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31" (1/1) ... [2024-10-14 19:49:31,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31" (1/1) ... [2024-10-14 19:49:31,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:49:31,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:49:31,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:49:31,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:49:31,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31" (1/1) ... [2024-10-14 19:49:31,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:49:31,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:49:31,879 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) [2024-10-14 19:49:31,882 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 [2024-10-14 19:49:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:49:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 19:49:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-14 19:49:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-14 19:49:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-14 19:49:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-14 19:49:31,914 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-14 19:49:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-14 19:49:31,914 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-14 19:49:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 19:49:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 19:49:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 19:49:31,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:49:31,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:49:31,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-14 19:49:31,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-14 19:49:31,916 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:49:32,049 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:49:32,050 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:49:34,227 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:49:34,227 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:49:40,184 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:49:40,185 INFO L314 CfgBuilder]: Removed 12 assume(true) statements. [2024-10-14 19:49:40,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:49:40 BoogieIcfgContainer [2024-10-14 19:49:40,185 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:49:40,187 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:49:40,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:49:40,189 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:49:40,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:49:31" (1/3) ... [2024-10-14 19:49:40,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e37a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:49:40, skipping insertion in model container [2024-10-14 19:49:40,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:49:31" (2/3) ... [2024-10-14 19:49:40,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e37a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:49:40, skipping insertion in model container [2024-10-14 19:49:40,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:49:40" (3/3) ... [2024-10-14 19:49:40,191 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2024-10-14 19:49:40,205 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:49:40,205 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 370 error locations. [2024-10-14 19:49:40,206 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:49:41,430 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-14 19:49:41,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 451 places, 472 transitions, 958 flow [2024-10-14 19:49:41,805 INFO L124 PetriNetUnfolderBase]: 28/470 cut-off events. [2024-10-14 19:49:41,805 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 19:49:41,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 470 events. 28/470 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 4139 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 423. Up to 7 conditions per place. [2024-10-14 19:49:41,821 INFO L82 GeneralOperation]: Start removeDead. Operand has 451 places, 472 transitions, 958 flow [2024-10-14 19:49:41,844 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 448 places, 469 transitions, 950 flow [2024-10-14 19:49:41,851 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:49:41,859 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;@48a340d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:49:41,859 INFO L334 AbstractCegarLoop]: Starting to check reachability of 724 error locations. [2024-10-14 19:49:41,861 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:49:41,861 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-10-14 19:49:41,861 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:49:41,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:49:41,862 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-14 19:49:41,863 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 721 more)] === [2024-10-14 19:49:41,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:49:41,867 INFO L85 PathProgramCache]: Analyzing trace with hash 7567433, now seen corresponding path program 1 times [2024-10-14 19:49:41,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:49:41,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713592999] [2024-10-14 19:49:41,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:49:41,879 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 [2024-10-14 19:49:41,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:49:41,881 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) [2024-10-14 19:49:41,906 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 [2024-10-14 19:49:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:49:42,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 19:49:42,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:49:42,868 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 [2024-10-14 19:49:42,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:49:42,881 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:49:42,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:49:42,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713592999] [2024-10-14 19:49:42,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713592999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:49:42,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:49:42,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:49:42,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403322168] [2024-10-14 19:49:42,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:49:42,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:49:42,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:49:42,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:49:42,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:49:43,068 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 472 [2024-10-14 19:49:43,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 469 transitions, 950 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-10-14 19:49:43,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:49:43,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 472 [2024-10-14 19:49:43,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:49:59,608 INFO L124 PetriNetUnfolderBase]: 43994/71282 cut-off events. [2024-10-14 19:49:59,609 INFO L125 PetriNetUnfolderBase]: For 438/438 co-relation queries the response was YES. [2024-10-14 19:49:59,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142910 conditions, 71282 events. 43994/71282 cut-off events. For 438/438 co-relation queries the response was YES. Maximal size of possible extension queue 4297. Compared 629591 event pairs, 40250 based on Foata normal form. 1/24575 useless extension candidates. Maximal degree in co-relation 142244. Up to 71250 conditions per place. [2024-10-14 19:49:59,960 INFO L140 encePairwiseOnDemand]: 289/472 looper letters, 276 selfloop transitions, 2 changer transitions 0/287 dead transitions. [2024-10-14 19:49:59,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 287 transitions, 1142 flow [2024-10-14 19:49:59,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:49:59,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:49:59,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 495 transitions. [2024-10-14 19:49:59,978 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3495762711864407 [2024-10-14 19:49:59,980 INFO L175 Difference]: Start difference. First operand has 448 places, 469 transitions, 950 flow. Second operand 3 states and 495 transitions. [2024-10-14 19:49:59,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 287 transitions, 1142 flow [2024-10-14 19:49:59,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 287 transitions, 1134 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 19:49:59,995 INFO L231 Difference]: Finished difference. Result has 268 places, 287 transitions, 582 flow [2024-10-14 19:49:59,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=268, PETRI_TRANSITIONS=287} [2024-10-14 19:50:00,001 INFO L277 CegarLoopForPetriNet]: 448 programPoint places, -180 predicate places. [2024-10-14 19:50:00,001 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 287 transitions, 582 flow [2024-10-14 19:50:00,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-10-14 19:50:00,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:50:00,002 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-14 19:50:00,008 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 (2)] Ended with exit code 0 [2024-10-14 19:50:00,202 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 [2024-10-14 19:50:00,203 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 721 more)] === [2024-10-14 19:50:00,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:50:00,204 INFO L85 PathProgramCache]: Analyzing trace with hash 7567434, now seen corresponding path program 1 times [2024-10-14 19:50:00,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:50:00,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042756275] [2024-10-14 19:50:00,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:50:00,205 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 [2024-10-14 19:50:00,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:50:00,208 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) [2024-10-14 19:50:00,209 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 [2024-10-14 19:50:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:50:01,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 19:50:01,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:50:01,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-14 19:50:01,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:50:01,099 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:50:01,099 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:50:01,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042756275] [2024-10-14 19:50:01,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042756275] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:50:01,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:50:01,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:50:01,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471192884] [2024-10-14 19:50:01,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:50:01,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:50:01,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:50:01,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:50:01,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:50:01,139 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 472 [2024-10-14 19:50:01,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 287 transitions, 582 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-10-14 19:50:01,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:50:01,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 472 [2024-10-14 19:50:01,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:50:15,347 INFO L124 PetriNetUnfolderBase]: 43996/71288 cut-off events. [2024-10-14 19:50:15,347 INFO L125 PetriNetUnfolderBase]: For 103/103 co-relation queries the response was YES. [2024-10-14 19:50:15,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142697 conditions, 71288 events. 43996/71288 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 4297. Compared 629760 event pairs, 40250 based on Foata normal form. 0/24571 useless extension candidates. Maximal degree in co-relation 142614. Up to 71283 conditions per place. [2024-10-14 19:50:15,608 INFO L140 encePairwiseOnDemand]: 465/472 looper letters, 287 selfloop transitions, 5 changer transitions 0/293 dead transitions. [2024-10-14 19:50:15,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 293 transitions, 1178 flow [2024-10-14 19:50:15,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:50:15,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:50:15,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2024-10-14 19:50:15,613 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2330508474576271 [2024-10-14 19:50:15,613 INFO L175 Difference]: Start difference. First operand has 268 places, 287 transitions, 582 flow. Second operand 3 states and 330 transitions. [2024-10-14 19:50:15,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 293 transitions, 1178 flow [2024-10-14 19:50:15,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 293 transitions, 1174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 19:50:15,619 INFO L231 Difference]: Finished difference. Result has 270 places, 291 transitions, 618 flow [2024-10-14 19:50:15,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=270, PETRI_TRANSITIONS=291} [2024-10-14 19:50:15,620 INFO L277 CegarLoopForPetriNet]: 448 programPoint places, -178 predicate places. [2024-10-14 19:50:15,620 INFO L471 AbstractCegarLoop]: Abstraction has has 270 places, 291 transitions, 618 flow [2024-10-14 19:50:15,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-10-14 19:50:15,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:50:15,620 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2024-10-14 19:50:15,627 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 (3)] Forceful destruction successful, exit code 0 [2024-10-14 19:50:15,821 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 [2024-10-14 19:50:15,821 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 721 more)] === [2024-10-14 19:50:15,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:50:15,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1317390709, now seen corresponding path program 1 times [2024-10-14 19:50:15,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:50:15,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484740903] [2024-10-14 19:50:15,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:50:15,823 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 [2024-10-14 19:50:15,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:50:15,825 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) [2024-10-14 19:50:15,826 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 [2024-10-14 19:50:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:50:16,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 19:50:16,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:50:16,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-14 19:50:16,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:50:16,711 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:50:16,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:50:16,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:50:16,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484740903] [2024-10-14 19:50:16,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484740903] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:50:16,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 19:50:16,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2024-10-14 19:50:16,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257695852] [2024-10-14 19:50:16,793 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 19:50:16,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:50:16,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:50:16,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:50:16,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:50:16,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 472 [2024-10-14 19:50:16,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 291 transitions, 618 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-10-14 19:50:16,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:50:16,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 472 [2024-10-14 19:50:16,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:50:34,444 INFO L124 PetriNetUnfolderBase]: 44014/71342 cut-off events. [2024-10-14 19:50:34,444 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2024-10-14 19:50:34,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142835 conditions, 71342 events. 44014/71342 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 4297. Compared 630011 event pairs, 40250 based on Foata normal form. 0/24616 useless extension candidates. Maximal degree in co-relation 142734. Up to 71284 conditions per place. [2024-10-14 19:50:34,670 INFO L140 encePairwiseOnDemand]: 447/472 looper letters, 305 selfloop transitions, 41 changer transitions 0/347 dead transitions. [2024-10-14 19:50:34,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 347 transitions, 1452 flow [2024-10-14 19:50:34,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:50:34,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:50:34,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 436 transitions. [2024-10-14 19:50:34,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.153954802259887 [2024-10-14 19:50:34,673 INFO L175 Difference]: Start difference. First operand has 270 places, 291 transitions, 618 flow. Second operand 6 states and 436 transitions. [2024-10-14 19:50:34,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 347 transitions, 1452 flow [2024-10-14 19:50:34,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 347 transitions, 1436 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 19:50:34,679 INFO L231 Difference]: Finished difference. Result has 276 places, 327 transitions, 908 flow [2024-10-14 19:50:34,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=908, PETRI_PLACES=276, PETRI_TRANSITIONS=327} [2024-10-14 19:50:34,680 INFO L277 CegarLoopForPetriNet]: 448 programPoint places, -172 predicate places. [2024-10-14 19:50:34,680 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 327 transitions, 908 flow [2024-10-14 19:50:34,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-10-14 19:50:34,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:50:34,680 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-10-14 19:50:34,688 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 (4)] Forceful destruction successful, exit code 0 [2024-10-14 19:50:34,880 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 [2024-10-14 19:50:34,881 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 721 more)] === [2024-10-14 19:50:34,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:50:34,882 INFO L85 PathProgramCache]: Analyzing trace with hash -824535921, now seen corresponding path program 1 times [2024-10-14 19:50:34,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:50:34,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517030114] [2024-10-14 19:50:34,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:50:34,883 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 [2024-10-14 19:50:34,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:50:34,885 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) [2024-10-14 19:50:34,886 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 [2024-10-14 19:50:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:50:35,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 19:50:35,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:50:35,719 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 19:50:35,719 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:50:35,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:50:35,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517030114] [2024-10-14 19:50:35,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517030114] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:50:35,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:50:35,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 19:50:35,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793521440] [2024-10-14 19:50:35,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:50:35,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:50:35,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:50:35,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:50:35,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:50:35,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 472 [2024-10-14 19:50:35,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 327 transitions, 908 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) [2024-10-14 19:50:35,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:50:35,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 472 [2024-10-14 19:50:35,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand