./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:42:25,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:42:25,900 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:42:25,906 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:42:25,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:42:25,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:42:25,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:42:25,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:42:25,943 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:42:25,943 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:42:25,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:42:25,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:42:25,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:42:25,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:42:25,947 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:42:25,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:42:25,948 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:42:25,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:42:25,948 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:42:25,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:42:25,949 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:42:25,950 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:42:25,950 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:42:25,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:42:25,951 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:42:25,951 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:42:25,951 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:42:25,951 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:42:25,952 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:42:25,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:42:25,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:42:25,953 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:42:25,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:42:25,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:42:25,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:42:25,958 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:42:25,958 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:42:25,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:42:25,958 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:42:25,959 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:42:25,960 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:42:25,960 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:42:25,960 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 [2024-10-11 19:42:26,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:42:26,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:42:26,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:42:26,241 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:42:26,242 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:42:26,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2024-10-11 19:42:27,706 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:42:28,023 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:42:28,023 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2024-10-11 19:42:28,066 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/504e7c259/b2c756015cef43c2a1a6de4a82b9aa73/FLAGb56d5bbe7 [2024-10-11 19:42:28,084 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/504e7c259/b2c756015cef43c2a1a6de4a82b9aa73 [2024-10-11 19:42:28,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:42:28,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:42:28,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:42:28,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:42:28,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:42:28,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:42:28" (1/1) ... [2024-10-11 19:42:28,102 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@285cf192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:28, skipping insertion in model container [2024-10-11 19:42:28,102 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:42:28" (1/1) ... [2024-10-11 19:42:28,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:42:28,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:42:28,694 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) [2024-10-11 19:42:28,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6ee7f817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:28, skipping insertion in model container [2024-10-11 19:42:28,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:42:28,697 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-11 19:42:28,699 INFO L158 Benchmark]: Toolchain (without parser) took 606.72ms. Allocated memory is still 159.4MB. Free memory was 100.5MB in the beginning and 77.9MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:42:28,699 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 159.4MB. Free memory is still 118.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:42:28,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 604.42ms. Allocated memory is still 159.4MB. Free memory was 100.5MB in the beginning and 77.9MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:42:28,701 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 159.4MB. Free memory is still 118.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 604.42ms. Allocated memory is still 159.4MB. Free memory was 100.5MB in the beginning and 77.9MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3904]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:42:30,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:42:30,938 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-11 19:42:30,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:42:30,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:42:30,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:42:30,982 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:42:30,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:42:30,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:42:30,983 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:42:30,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:42:30,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:42:30,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:42:30,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:42:30,987 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:42:30,988 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:42:30,988 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:42:30,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:42:30,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:42:30,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:42:30,989 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:42:30,990 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:42:30,990 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:42:30,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:42:30,990 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:42:30,991 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 19:42:30,991 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:42:30,991 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 19:42:30,992 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:42:30,992 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:42:30,992 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:42:30,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:42:30,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:42:30,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:42:30,999 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:42:30,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:42:31,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:42:31,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:42:31,000 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 19:42:31,000 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 19:42:31,001 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:42:31,002 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:42:31,002 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:42:31,002 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:42:31,002 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 19:42:31,003 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 [2024-10-11 19:42:31,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:42:31,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:42:31,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:42:31,369 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:42:31,372 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:42:31,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2024-10-11 19:42:32,908 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:42:33,218 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:42:33,220 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2024-10-11 19:42:33,264 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/eaa98f0e1/aec7a116cb1f424cb65dd6168d8f2139/FLAGc8cdd5b87 [2024-10-11 19:42:33,282 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/eaa98f0e1/aec7a116cb1f424cb65dd6168d8f2139 [2024-10-11 19:42:33,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:42:33,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:42:33,289 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:42:33,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:42:33,295 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:42:33,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:42:33" (1/1) ... [2024-10-11 19:42:33,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46f6c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:33, skipping insertion in model container [2024-10-11 19:42:33,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:42:33" (1/1) ... [2024-10-11 19:42:33,397 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:42:33,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:42:33,894 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-11 19:42:33,925 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:42:33,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:42:33,975 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:42:34,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:42:34,078 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:42:34,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:34 WrapperNode [2024-10-11 19:42:34,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:42:34,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:42:34,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:42:34,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:42:34,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:34" (1/1) ... [2024-10-11 19:42:34,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:34" (1/1) ... [2024-10-11 19:42:34,153 INFO L138 Inliner]: procedures = 249, calls = 44, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 143 [2024-10-11 19:42:34,163 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:42:34,163 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:42:34,164 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:42:34,164 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:42:34,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:34" (1/1) ... [2024-10-11 19:42:34,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:34" (1/1) ... [2024-10-11 19:42:34,184 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:34" (1/1) ... [2024-10-11 19:42:34,213 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 13, 2]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 6, 2]. [2024-10-11 19:42:34,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:34" (1/1) ... [2024-10-11 19:42:34,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:34" (1/1) ... [2024-10-11 19:42:34,245 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:34" (1/1) ... [2024-10-11 19:42:34,248 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:34" (1/1) ... [2024-10-11 19:42:34,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:34" (1/1) ... [2024-10-11 19:42:34,265 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:34" (1/1) ... [2024-10-11 19:42:34,274 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:42:34,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:42:34,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:42:34,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:42:34,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:34" (1/1) ... [2024-10-11 19:42:34,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:42:34,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:42:34,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:42:34,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:42:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 19:42:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 19:42:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-11 19:42:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-10-11 19:42:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-10-11 19:42:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:42:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 19:42:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 19:42:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 19:42:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 19:42:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-11 19:42:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 19:42:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 19:42:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-11 19:42:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:42:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:42:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 19:42:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 19:42:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 19:42:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:42:34,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:42:34,374 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:42:34,669 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:42:34,671 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:42:35,187 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:42:35,188 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:42:35,350 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:42:35,350 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:42:35,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:42:35 BoogieIcfgContainer [2024-10-11 19:42:35,355 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:42:35,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:42:35,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:42:35,360 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:42:35,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:42:33" (1/3) ... [2024-10-11 19:42:35,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4d744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:42:35, skipping insertion in model container [2024-10-11 19:42:35,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:42:34" (2/3) ... [2024-10-11 19:42:35,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4d744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:42:35, skipping insertion in model container [2024-10-11 19:42:35,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:42:35" (3/3) ... [2024-10-11 19:42:35,364 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2024-10-11 19:42:35,380 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:42:35,381 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-10-11 19:42:35,381 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:42:35,451 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 19:42:35,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 126 transitions, 266 flow [2024-10-11 19:42:35,546 INFO L124 PetriNetUnfolderBase]: 18/159 cut-off events. [2024-10-11 19:42:35,547 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 19:42:35,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 159 events. 18/159 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 480 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2024-10-11 19:42:35,551 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 126 transitions, 266 flow [2024-10-11 19:42:35,555 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 124 transitions, 260 flow [2024-10-11 19:42:35,564 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:42:35,572 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;@1e61c020, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:42:35,572 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-10-11 19:42:35,577 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:42:35,577 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-11 19:42:35,577 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:42:35,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:35,579 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-11 19:42:35,579 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:35,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:35,585 INFO L85 PathProgramCache]: Analyzing trace with hash 498015, now seen corresponding path program 1 times [2024-10-11 19:42:35,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:35,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497722349] [2024-10-11 19:42:35,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:35,600 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 [2024-10-11 19:42:35,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:35,603 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:35,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:35,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:42:35,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:35,804 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 [2024-10-11 19:42:35,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:35,818 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:35,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:35,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497722349] [2024-10-11 19:42:35,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497722349] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:35,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:35,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:42:35,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514209954] [2024-10-11 19:42:35,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:35,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:42:35,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:35,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:42:35,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:42:35,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 126 [2024-10-11 19:42:35,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 124 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2024-10-11 19:42:35,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:35,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 126 [2024-10-11 19:42:35,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:37,257 INFO L124 PetriNetUnfolderBase]: 3071/7677 cut-off events. [2024-10-11 19:42:37,257 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-10-11 19:42:37,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12595 conditions, 7677 events. 3071/7677 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 74029 event pairs, 407 based on Foata normal form. 588/5627 useless extension candidates. Maximal degree in co-relation 12356. Up to 4146 conditions per place. [2024-10-11 19:42:37,312 INFO L140 encePairwiseOnDemand]: 108/126 looper letters, 78 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2024-10-11 19:42:37,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 124 transitions, 420 flow [2024-10-11 19:42:37,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:42:37,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:42:37,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2024-10-11 19:42:37,324 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-10-11 19:42:37,326 INFO L175 Difference]: Start difference. First operand has 116 places, 124 transitions, 260 flow. Second operand 3 states and 234 transitions. [2024-10-11 19:42:37,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 124 transitions, 420 flow [2024-10-11 19:42:37,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 124 transitions, 412 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 19:42:37,335 INFO L231 Difference]: Finished difference. Result has 104 places, 102 transitions, 212 flow [2024-10-11 19:42:37,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=104, PETRI_TRANSITIONS=102} [2024-10-11 19:42:37,341 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -12 predicate places. [2024-10-11 19:42:37,342 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 102 transitions, 212 flow [2024-10-11 19:42:37,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2024-10-11 19:42:37,342 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:37,342 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-11 19:42:37,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:37,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:37,544 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:37,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:37,545 INFO L85 PathProgramCache]: Analyzing trace with hash 498016, now seen corresponding path program 1 times [2024-10-11 19:42:37,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:37,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408550081] [2024-10-11 19:42:37,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:37,548 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 [2024-10-11 19:42:37,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:37,552 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:37,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:37,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 19:42:37,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:37,669 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 [2024-10-11 19:42:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:37,679 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:37,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:37,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408550081] [2024-10-11 19:42:37,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408550081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:37,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:37,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:42:37,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268695443] [2024-10-11 19:42:37,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:37,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:42:37,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:37,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:42:37,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:42:37,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 126 [2024-10-11 19:42:37,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2024-10-11 19:42:37,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:37,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 126 [2024-10-11 19:42:37,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:38,771 INFO L124 PetriNetUnfolderBase]: 3071/7673 cut-off events. [2024-10-11 19:42:38,771 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-10-11 19:42:38,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12708 conditions, 7673 events. 3071/7673 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 73950 event pairs, 407 based on Foata normal form. 2/5037 useless extension candidates. Maximal degree in co-relation 1475. Up to 4146 conditions per place. [2024-10-11 19:42:38,826 INFO L140 encePairwiseOnDemand]: 120/126 looper letters, 76 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2024-10-11 19:42:38,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 120 transitions, 404 flow [2024-10-11 19:42:38,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:42:38,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:42:38,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-10-11 19:42:38,829 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5978835978835979 [2024-10-11 19:42:38,829 INFO L175 Difference]: Start difference. First operand has 104 places, 102 transitions, 212 flow. Second operand 3 states and 226 transitions. [2024-10-11 19:42:38,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 120 transitions, 404 flow [2024-10-11 19:42:38,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 120 transitions, 400 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:42:38,836 INFO L231 Difference]: Finished difference. Result has 100 places, 98 transitions, 204 flow [2024-10-11 19:42:38,837 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=100, PETRI_TRANSITIONS=98} [2024-10-11 19:42:38,838 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -16 predicate places. [2024-10-11 19:42:38,838 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 204 flow [2024-10-11 19:42:38,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2024-10-11 19:42:38,839 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:38,839 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-11 19:42:38,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:39,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:39,041 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:39,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:39,041 INFO L85 PathProgramCache]: Analyzing trace with hash 15437293, now seen corresponding path program 1 times [2024-10-11 19:42:39,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:39,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946128341] [2024-10-11 19:42:39,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:39,042 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 [2024-10-11 19:42:39,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:39,044 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:39,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:39,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:42:39,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:39,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:39,133 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:39,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:39,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946128341] [2024-10-11 19:42:39,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946128341] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:39,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:39,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:42:39,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763159421] [2024-10-11 19:42:39,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:39,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:42:39,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:39,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:42:39,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:42:39,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 126 [2024-10-11 19:42:39,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 98 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 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) [2024-10-11 19:42:39,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:39,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 126 [2024-10-11 19:42:39,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:39,921 INFO L124 PetriNetUnfolderBase]: 3070/5968 cut-off events. [2024-10-11 19:42:39,922 INFO L125 PetriNetUnfolderBase]: For 138/138 co-relation queries the response was YES. [2024-10-11 19:42:39,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11003 conditions, 5968 events. 3070/5968 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 44328 event pairs, 2805 based on Foata normal form. 1/4093 useless extension candidates. Maximal degree in co-relation 5422. Up to 4464 conditions per place. [2024-10-11 19:42:39,959 INFO L140 encePairwiseOnDemand]: 123/126 looper letters, 76 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2024-10-11 19:42:39,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 119 transitions, 402 flow [2024-10-11 19:42:39,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:42:39,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:42:39,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2024-10-11 19:42:39,962 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6137566137566137 [2024-10-11 19:42:39,962 INFO L175 Difference]: Start difference. First operand has 100 places, 98 transitions, 204 flow. Second operand 3 states and 232 transitions. [2024-10-11 19:42:39,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 119 transitions, 402 flow [2024-10-11 19:42:39,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 119 transitions, 398 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:42:39,966 INFO L231 Difference]: Finished difference. Result has 100 places, 97 transitions, 202 flow [2024-10-11 19:42:39,966 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=100, PETRI_TRANSITIONS=97} [2024-10-11 19:42:39,967 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -16 predicate places. [2024-10-11 19:42:39,967 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 97 transitions, 202 flow [2024-10-11 19:42:39,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 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) [2024-10-11 19:42:39,967 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:39,968 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:39,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:40,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:40,172 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:40,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:40,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1057546939, now seen corresponding path program 1 times [2024-10-11 19:42:40,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:40,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911421332] [2024-10-11 19:42:40,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:40,175 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 [2024-10-11 19:42:40,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:40,176 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:40,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:40,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 19:42:40,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:40,347 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:40,347 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:40,348 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:40,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 32 treesize of output 41 [2024-10-11 19:42:40,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:42:40,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 53 [2024-10-11 19:42:40,518 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:42:40,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 45 [2024-10-11 19:42:40,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:40,533 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:40,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:40,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911421332] [2024-10-11 19:42:40,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911421332] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:40,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:40,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:42:40,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627371925] [2024-10-11 19:42:40,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:40,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:42:40,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:40,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:42:40,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:42:40,681 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 126 [2024-10-11 19:42:40,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 97 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 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) [2024-10-11 19:42:40,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:40,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 126 [2024-10-11 19:42:40,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:41,695 INFO L124 PetriNetUnfolderBase]: 3598/6893 cut-off events. [2024-10-11 19:42:41,695 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-10-11 19:42:41,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12746 conditions, 6893 events. 3598/6893 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 51032 event pairs, 2343 based on Foata normal form. 1/4762 useless extension candidates. Maximal degree in co-relation 11777. Up to 5605 conditions per place. [2024-10-11 19:42:41,729 INFO L140 encePairwiseOnDemand]: 119/126 looper letters, 64 selfloop transitions, 6 changer transitions 0/106 dead transitions. [2024-10-11 19:42:41,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 106 transitions, 361 flow [2024-10-11 19:42:41,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:42:41,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:42:41,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 267 transitions. [2024-10-11 19:42:41,732 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5297619047619048 [2024-10-11 19:42:41,732 INFO L175 Difference]: Start difference. First operand has 100 places, 97 transitions, 202 flow. Second operand 4 states and 267 transitions. [2024-10-11 19:42:41,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 106 transitions, 361 flow [2024-10-11 19:42:41,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 106 transitions, 357 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:42:41,747 INFO L231 Difference]: Finished difference. Result has 99 places, 97 transitions, 222 flow [2024-10-11 19:42:41,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=99, PETRI_TRANSITIONS=97} [2024-10-11 19:42:41,749 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -17 predicate places. [2024-10-11 19:42:41,750 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 97 transitions, 222 flow [2024-10-11 19:42:41,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 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) [2024-10-11 19:42:41,750 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:41,751 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:41,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:41,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:41,952 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:41,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:41,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1758384081, now seen corresponding path program 1 times [2024-10-11 19:42:41,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:41,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549360354] [2024-10-11 19:42:41,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:41,954 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 [2024-10-11 19:42:41,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:41,957 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:41,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:42,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 19:42:42,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:42,126 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:42,126 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:42,127 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:42,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 32 treesize of output 41 [2024-10-11 19:42:42,262 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:42:42,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 45 [2024-10-11 19:42:42,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:42,273 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:42,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:42,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549360354] [2024-10-11 19:42:42,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549360354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:42,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:42,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:42:42,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029694261] [2024-10-11 19:42:42,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:42,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:42:42,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:42,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:42:42,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:42:42,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 126 [2024-10-11 19:42:42,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 97 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 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) [2024-10-11 19:42:42,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:42,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 126 [2024-10-11 19:42:42,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:43,324 INFO L124 PetriNetUnfolderBase]: 3598/6890 cut-off events. [2024-10-11 19:42:43,325 INFO L125 PetriNetUnfolderBase]: For 440/440 co-relation queries the response was YES. [2024-10-11 19:42:43,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13121 conditions, 6890 events. 3598/6890 cut-off events. For 440/440 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 51038 event pairs, 2343 based on Foata normal form. 1/5099 useless extension candidates. Maximal degree in co-relation 7001. Up to 5605 conditions per place. [2024-10-11 19:42:43,355 INFO L140 encePairwiseOnDemand]: 119/126 looper letters, 63 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2024-10-11 19:42:43,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 103 transitions, 373 flow [2024-10-11 19:42:43,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:42:43,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:42:43,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 266 transitions. [2024-10-11 19:42:43,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2024-10-11 19:42:43,357 INFO L175 Difference]: Start difference. First operand has 99 places, 97 transitions, 222 flow. Second operand 4 states and 266 transitions. [2024-10-11 19:42:43,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 103 transitions, 373 flow [2024-10-11 19:42:43,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 103 transitions, 367 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:42:43,360 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 222 flow [2024-10-11 19:42:43,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2024-10-11 19:42:43,361 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -19 predicate places. [2024-10-11 19:42:43,361 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 222 flow [2024-10-11 19:42:43,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 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) [2024-10-11 19:42:43,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:43,362 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:43,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)] Ended with exit code 0 [2024-10-11 19:42:43,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:43,566 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:43,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:43,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1629828376, now seen corresponding path program 1 times [2024-10-11 19:42:43,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:43,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013138052] [2024-10-11 19:42:43,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:43,567 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 [2024-10-11 19:42:43,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:43,571 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:43,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:43,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 19:42:43,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:43,708 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 [2024-10-11 19:42:43,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:43,745 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:43,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:43,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013138052] [2024-10-11 19:42:43,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013138052] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:43,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:43,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:42:43,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098742135] [2024-10-11 19:42:43,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:43,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:42:43,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:43,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:42:43,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:42:43,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 126 [2024-10-11 19:42:43,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 222 flow. Second operand has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 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) [2024-10-11 19:42:43,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:43,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 126 [2024-10-11 19:42:43,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:44,800 INFO L124 PetriNetUnfolderBase]: 2554/6244 cut-off events. [2024-10-11 19:42:44,800 INFO L125 PetriNetUnfolderBase]: For 363/363 co-relation queries the response was YES. [2024-10-11 19:42:44,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10811 conditions, 6244 events. 2554/6244 cut-off events. For 363/363 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 56248 event pairs, 127 based on Foata normal form. 0/4522 useless extension candidates. Maximal degree in co-relation 5200. Up to 2287 conditions per place. [2024-10-11 19:42:44,832 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 142 selfloop transitions, 15 changer transitions 1/193 dead transitions. [2024-10-11 19:42:44,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 193 transitions, 763 flow [2024-10-11 19:42:44,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:42:44,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:42:44,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 530 transitions. [2024-10-11 19:42:44,835 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5257936507936508 [2024-10-11 19:42:44,835 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 222 flow. Second operand 8 states and 530 transitions. [2024-10-11 19:42:44,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 193 transitions, 763 flow [2024-10-11 19:42:44,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 193 transitions, 754 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:42:44,839 INFO L231 Difference]: Finished difference. Result has 106 places, 104 transitions, 321 flow [2024-10-11 19:42:44,839 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=321, PETRI_PLACES=106, PETRI_TRANSITIONS=104} [2024-10-11 19:42:44,840 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -10 predicate places. [2024-10-11 19:42:44,840 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 104 transitions, 321 flow [2024-10-11 19:42:44,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 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) [2024-10-11 19:42:44,841 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:44,841 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:44,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)] Forceful destruction successful, exit code 0 [2024-10-11 19:42:45,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:45,042 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:45,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:45,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1629828377, now seen corresponding path program 1 times [2024-10-11 19:42:45,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:45,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693808387] [2024-10-11 19:42:45,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:45,044 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 [2024-10-11 19:42:45,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:45,045 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:45,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:45,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 19:42:45,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:45,188 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 [2024-10-11 19:42:45,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:45,281 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:45,281 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:45,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693808387] [2024-10-11 19:42:45,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693808387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:45,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:45,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:42:45,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585999529] [2024-10-11 19:42:45,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:45,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:42:45,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:45,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:42:45,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:42:45,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 126 [2024-10-11 19:42:45,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 104 transitions, 321 flow. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 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) [2024-10-11 19:42:45,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:45,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 126 [2024-10-11 19:42:45,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:46,344 INFO L124 PetriNetUnfolderBase]: 1721/4277 cut-off events. [2024-10-11 19:42:46,345 INFO L125 PetriNetUnfolderBase]: For 1999/1999 co-relation queries the response was YES. [2024-10-11 19:42:46,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8613 conditions, 4277 events. 1721/4277 cut-off events. For 1999/1999 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 36188 event pairs, 143 based on Foata normal form. 450/3819 useless extension candidates. Maximal degree in co-relation 7442. Up to 1957 conditions per place. [2024-10-11 19:42:46,372 INFO L140 encePairwiseOnDemand]: 118/126 looper letters, 125 selfloop transitions, 12 changer transitions 2/176 dead transitions. [2024-10-11 19:42:46,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 176 transitions, 772 flow [2024-10-11 19:42:46,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:42:46,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:42:46,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 473 transitions. [2024-10-11 19:42:46,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.536281179138322 [2024-10-11 19:42:46,375 INFO L175 Difference]: Start difference. First operand has 106 places, 104 transitions, 321 flow. Second operand 7 states and 473 transitions. [2024-10-11 19:42:46,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 176 transitions, 772 flow [2024-10-11 19:42:46,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 176 transitions, 772 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 19:42:46,386 INFO L231 Difference]: Finished difference. Result has 115 places, 106 transitions, 379 flow [2024-10-11 19:42:46,386 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=379, PETRI_PLACES=115, PETRI_TRANSITIONS=106} [2024-10-11 19:42:46,387 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -1 predicate places. [2024-10-11 19:42:46,387 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 106 transitions, 379 flow [2024-10-11 19:42:46,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 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) [2024-10-11 19:42:46,387 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:46,388 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:46,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:46,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:46,589 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:46,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:46,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1017481812, now seen corresponding path program 1 times [2024-10-11 19:42:46,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:46,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567830606] [2024-10-11 19:42:46,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:46,590 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 [2024-10-11 19:42:46,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:46,593 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:46,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:46,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:42:46,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:46,732 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 [2024-10-11 19:42:46,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:46,820 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:46,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:46,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567830606] [2024-10-11 19:42:46,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567830606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:46,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:46,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:42:46,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209008101] [2024-10-11 19:42:46,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:46,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:42:46,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:46,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:42:46,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:42:46,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 126 [2024-10-11 19:42:46,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 106 transitions, 379 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2024-10-11 19:42:46,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:46,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 126 [2024-10-11 19:42:46,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:47,341 INFO L124 PetriNetUnfolderBase]: 1721/3767 cut-off events. [2024-10-11 19:42:47,342 INFO L125 PetriNetUnfolderBase]: For 3611/3611 co-relation queries the response was YES. [2024-10-11 19:42:47,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8725 conditions, 3767 events. 1721/3767 cut-off events. For 3611/3611 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 27862 event pairs, 959 based on Foata normal form. 146/3323 useless extension candidates. Maximal degree in co-relation 7550. Up to 1747 conditions per place. [2024-10-11 19:42:47,361 INFO L140 encePairwiseOnDemand]: 119/126 looper letters, 91 selfloop transitions, 6 changer transitions 0/128 dead transitions. [2024-10-11 19:42:47,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 128 transitions, 629 flow [2024-10-11 19:42:47,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:42:47,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:42:47,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2024-10-11 19:42:47,363 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2024-10-11 19:42:47,363 INFO L175 Difference]: Start difference. First operand has 115 places, 106 transitions, 379 flow. Second operand 3 states and 225 transitions. [2024-10-11 19:42:47,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 128 transitions, 629 flow [2024-10-11 19:42:47,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 128 transitions, 615 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 19:42:47,371 INFO L231 Difference]: Finished difference. Result has 114 places, 107 transitions, 397 flow [2024-10-11 19:42:47,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=397, PETRI_PLACES=114, PETRI_TRANSITIONS=107} [2024-10-11 19:42:47,372 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -2 predicate places. [2024-10-11 19:42:47,372 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 107 transitions, 397 flow [2024-10-11 19:42:47,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2024-10-11 19:42:47,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:47,373 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:47,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:47,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:47,574 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:47,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:47,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1017481813, now seen corresponding path program 1 times [2024-10-11 19:42:47,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:47,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79862084] [2024-10-11 19:42:47,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:47,575 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 [2024-10-11 19:42:47,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:47,577 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:47,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:47,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:42:47,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:47,690 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 [2024-10-11 19:42:47,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:47,717 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:47,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:47,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79862084] [2024-10-11 19:42:47,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79862084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:47,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:47,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:42:47,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889552976] [2024-10-11 19:42:47,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:47,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:42:47,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:47,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:42:47,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:42:47,768 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 126 [2024-10-11 19:42:47,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 107 transitions, 397 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2024-10-11 19:42:47,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:47,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 126 [2024-10-11 19:42:47,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:48,116 INFO L124 PetriNetUnfolderBase]: 1973/3866 cut-off events. [2024-10-11 19:42:48,116 INFO L125 PetriNetUnfolderBase]: For 3841/3841 co-relation queries the response was YES. [2024-10-11 19:42:48,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9595 conditions, 3866 events. 1973/3866 cut-off events. For 3841/3841 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 25879 event pairs, 1313 based on Foata normal form. 0/3337 useless extension candidates. Maximal degree in co-relation 8419. Up to 2473 conditions per place. [2024-10-11 19:42:48,130 INFO L140 encePairwiseOnDemand]: 117/126 looper letters, 80 selfloop transitions, 7 changer transitions 0/116 dead transitions. [2024-10-11 19:42:48,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 116 transitions, 595 flow [2024-10-11 19:42:48,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:42:48,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:42:48,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2024-10-11 19:42:48,132 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-10-11 19:42:48,132 INFO L175 Difference]: Start difference. First operand has 114 places, 107 transitions, 397 flow. Second operand 3 states and 210 transitions. [2024-10-11 19:42:48,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 116 transitions, 595 flow [2024-10-11 19:42:48,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 116 transitions, 589 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:42:48,141 INFO L231 Difference]: Finished difference. Result has 110 places, 102 transitions, 395 flow [2024-10-11 19:42:48,141 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=395, PETRI_PLACES=110, PETRI_TRANSITIONS=102} [2024-10-11 19:42:48,142 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -6 predicate places. [2024-10-11 19:42:48,142 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 102 transitions, 395 flow [2024-10-11 19:42:48,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2024-10-11 19:42:48,142 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:48,142 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:48,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:48,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:48,343 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:48,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:48,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1398577977, now seen corresponding path program 1 times [2024-10-11 19:42:48,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:48,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246847632] [2024-10-11 19:42:48,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:48,344 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 [2024-10-11 19:42:48,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:48,347 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:48,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:48,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 19:42:48,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:48,476 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 [2024-10-11 19:42:48,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:48,583 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:48,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:48,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246847632] [2024-10-11 19:42:48,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246847632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:48,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:48,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:42:48,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490832301] [2024-10-11 19:42:48,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:48,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:42:48,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:48,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:42:48,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:42:48,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 126 [2024-10-11 19:42:48,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 102 transitions, 395 flow. Second operand has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 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) [2024-10-11 19:42:48,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:48,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 126 [2024-10-11 19:42:48,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:49,461 INFO L124 PetriNetUnfolderBase]: 1301/2852 cut-off events. [2024-10-11 19:42:49,461 INFO L125 PetriNetUnfolderBase]: For 2796/2796 co-relation queries the response was YES. [2024-10-11 19:42:49,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6788 conditions, 2852 events. 1301/2852 cut-off events. For 2796/2796 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 19493 event pairs, 93 based on Foata normal form. 0/2623 useless extension candidates. Maximal degree in co-relation 5906. Up to 1488 conditions per place. [2024-10-11 19:42:49,470 INFO L140 encePairwiseOnDemand]: 118/126 looper letters, 116 selfloop transitions, 16 changer transitions 1/165 dead transitions. [2024-10-11 19:42:49,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 165 transitions, 918 flow [2024-10-11 19:42:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:42:49,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:42:49,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 455 transitions. [2024-10-11 19:42:49,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5158730158730159 [2024-10-11 19:42:49,472 INFO L175 Difference]: Start difference. First operand has 110 places, 102 transitions, 395 flow. Second operand 7 states and 455 transitions. [2024-10-11 19:42:49,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 165 transitions, 918 flow [2024-10-11 19:42:49,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 165 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:42:49,480 INFO L231 Difference]: Finished difference. Result has 116 places, 109 transitions, 487 flow [2024-10-11 19:42:49,480 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=487, PETRI_PLACES=116, PETRI_TRANSITIONS=109} [2024-10-11 19:42:49,481 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 0 predicate places. [2024-10-11 19:42:49,481 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 109 transitions, 487 flow [2024-10-11 19:42:49,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 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) [2024-10-11 19:42:49,482 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:49,482 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:49,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)] Forceful destruction successful, exit code 0 [2024-10-11 19:42:49,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:49,682 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:49,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:49,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1398577978, now seen corresponding path program 1 times [2024-10-11 19:42:49,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:49,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524272959] [2024-10-11 19:42:49,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:49,684 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 [2024-10-11 19:42:49,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:49,685 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:49,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:49,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 19:42:49,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:49,809 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 [2024-10-11 19:42:49,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:49,850 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:49,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:49,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524272959] [2024-10-11 19:42:49,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524272959] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:49,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:49,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:42:49,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566270925] [2024-10-11 19:42:49,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:49,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:42:49,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:49,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:42:49,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:42:49,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 126 [2024-10-11 19:42:49,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 109 transitions, 487 flow. Second operand has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 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) [2024-10-11 19:42:49,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:49,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 126 [2024-10-11 19:42:49,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:50,512 INFO L124 PetriNetUnfolderBase]: 1070/2326 cut-off events. [2024-10-11 19:42:50,512 INFO L125 PetriNetUnfolderBase]: For 2837/2837 co-relation queries the response was YES. [2024-10-11 19:42:50,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5955 conditions, 2326 events. 1070/2326 cut-off events. For 2837/2837 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 15292 event pairs, 153 based on Foata normal form. 65/2328 useless extension candidates. Maximal degree in co-relation 5145. Up to 794 conditions per place. [2024-10-11 19:42:50,520 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 119 selfloop transitions, 21 changer transitions 0/170 dead transitions. [2024-10-11 19:42:50,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 170 transitions, 1003 flow [2024-10-11 19:42:50,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:42:50,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:42:50,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 497 transitions. [2024-10-11 19:42:50,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4930555555555556 [2024-10-11 19:42:50,522 INFO L175 Difference]: Start difference. First operand has 116 places, 109 transitions, 487 flow. Second operand 8 states and 497 transitions. [2024-10-11 19:42:50,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 170 transitions, 1003 flow [2024-10-11 19:42:50,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 170 transitions, 1000 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:42:50,532 INFO L231 Difference]: Finished difference. Result has 127 places, 115 transitions, 612 flow [2024-10-11 19:42:50,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=612, PETRI_PLACES=127, PETRI_TRANSITIONS=115} [2024-10-11 19:42:50,533 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 11 predicate places. [2024-10-11 19:42:50,533 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 115 transitions, 612 flow [2024-10-11 19:42:50,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 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) [2024-10-11 19:42:50,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:50,534 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:50,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:50,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:50,734 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:50,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:50,735 INFO L85 PathProgramCache]: Analyzing trace with hash -262746270, now seen corresponding path program 1 times [2024-10-11 19:42:50,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:50,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732451302] [2024-10-11 19:42:50,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:50,735 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 [2024-10-11 19:42:50,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:50,737 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:50,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:50,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 19:42:50,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:50,891 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 [2024-10-11 19:42:50,896 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 [2024-10-11 19:42:51,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:42:51,070 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 14 treesize of output 9 [2024-10-11 19:42:51,083 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 19:42:51,083 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 [2024-10-11 19:42:51,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:51,102 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:51,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:51,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732451302] [2024-10-11 19:42:51,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732451302] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:51,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:51,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:42:51,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085798001] [2024-10-11 19:42:51,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:51,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:42:51,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:51,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:42:51,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:42:51,350 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 126 [2024-10-11 19:42:51,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 115 transitions, 612 flow. Second operand has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 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) [2024-10-11 19:42:51,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:51,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 126 [2024-10-11 19:42:51,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:52,187 INFO L124 PetriNetUnfolderBase]: 1229/2618 cut-off events. [2024-10-11 19:42:52,187 INFO L125 PetriNetUnfolderBase]: For 5402/5402 co-relation queries the response was YES. [2024-10-11 19:42:52,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7751 conditions, 2618 events. 1229/2618 cut-off events. For 5402/5402 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 17803 event pairs, 320 based on Foata normal form. 27/2634 useless extension candidates. Maximal degree in co-relation 6772. Up to 745 conditions per place. [2024-10-11 19:42:52,197 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 136 selfloop transitions, 21 changer transitions 0/189 dead transitions. [2024-10-11 19:42:52,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 189 transitions, 1225 flow [2024-10-11 19:42:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:42:52,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:42:52,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 536 transitions. [2024-10-11 19:42:52,200 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47266313932980597 [2024-10-11 19:42:52,200 INFO L175 Difference]: Start difference. First operand has 127 places, 115 transitions, 612 flow. Second operand 9 states and 536 transitions. [2024-10-11 19:42:52,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 189 transitions, 1225 flow [2024-10-11 19:42:52,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 189 transitions, 1197 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 19:42:52,214 INFO L231 Difference]: Finished difference. Result has 128 places, 113 transitions, 626 flow [2024-10-11 19:42:52,214 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=626, PETRI_PLACES=128, PETRI_TRANSITIONS=113} [2024-10-11 19:42:52,215 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 12 predicate places. [2024-10-11 19:42:52,216 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 113 transitions, 626 flow [2024-10-11 19:42:52,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 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) [2024-10-11 19:42:52,216 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:52,217 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:52,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)] Ended with exit code 0 [2024-10-11 19:42:52,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:52,417 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:52,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:52,418 INFO L85 PathProgramCache]: Analyzing trace with hash 390898072, now seen corresponding path program 1 times [2024-10-11 19:42:52,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:52,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84381281] [2024-10-11 19:42:52,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:52,418 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 [2024-10-11 19:42:52,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:52,419 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:52,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:52,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 19:42:52,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:52,573 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 [2024-10-11 19:42:52,580 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 [2024-10-11 19:42:52,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:42:52,734 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 14 treesize of output 9 [2024-10-11 19:42:52,744 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 19:42:52,744 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 [2024-10-11 19:42:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:52,757 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:52,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:52,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84381281] [2024-10-11 19:42:52,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84381281] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:52,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:52,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:42:52,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067869626] [2024-10-11 19:42:52,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:52,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:42:52,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:52,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:42:52,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:42:53,285 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 126 [2024-10-11 19:42:53,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 113 transitions, 626 flow. Second operand has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 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) [2024-10-11 19:42:53,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:53,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 126 [2024-10-11 19:42:53,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:54,141 INFO L124 PetriNetUnfolderBase]: 1476/3063 cut-off events. [2024-10-11 19:42:54,141 INFO L125 PetriNetUnfolderBase]: For 6622/6622 co-relation queries the response was YES. [2024-10-11 19:42:54,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9501 conditions, 3063 events. 1476/3063 cut-off events. For 6622/6622 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 21683 event pairs, 498 based on Foata normal form. 24/3079 useless extension candidates. Maximal degree in co-relation 6839. Up to 701 conditions per place. [2024-10-11 19:42:54,154 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 133 selfloop transitions, 21 changer transitions 0/186 dead transitions. [2024-10-11 19:42:54,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 186 transitions, 1254 flow [2024-10-11 19:42:54,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:42:54,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:42:54,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 530 transitions. [2024-10-11 19:42:54,157 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4673721340388007 [2024-10-11 19:42:54,157 INFO L175 Difference]: Start difference. First operand has 128 places, 113 transitions, 626 flow. Second operand 9 states and 530 transitions. [2024-10-11 19:42:54,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 186 transitions, 1254 flow [2024-10-11 19:42:54,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 186 transitions, 1202 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-11 19:42:54,173 INFO L231 Difference]: Finished difference. Result has 126 places, 111 transitions, 620 flow [2024-10-11 19:42:54,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=620, PETRI_PLACES=126, PETRI_TRANSITIONS=111} [2024-10-11 19:42:54,174 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 10 predicate places. [2024-10-11 19:42:54,174 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 111 transitions, 620 flow [2024-10-11 19:42:54,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 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) [2024-10-11 19:42:54,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:54,175 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:54,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)] Forceful destruction successful, exit code 0 [2024-10-11 19:42:54,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:54,375 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:54,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:54,376 INFO L85 PathProgramCache]: Analyzing trace with hash 681152799, now seen corresponding path program 1 times [2024-10-11 19:42:54,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:54,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581319208] [2024-10-11 19:42:54,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:54,377 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 [2024-10-11 19:42:54,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:54,378 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:54,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 19:42:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:54,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 19:42:54,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:54,562 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:54,562 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:54,563 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:54,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 32 treesize of output 41 [2024-10-11 19:42:54,605 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:42:54,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 63 [2024-10-11 19:42:54,663 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:42:54,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 131 treesize of output 53 [2024-10-11 19:42:54,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:54,681 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:54,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:54,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581319208] [2024-10-11 19:42:54,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581319208] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:54,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:54,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:42:54,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339516247] [2024-10-11 19:42:54,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:54,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:42:54,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:54,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:42:54,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:42:54,948 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 126 [2024-10-11 19:42:54,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 111 transitions, 620 flow. Second operand has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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) [2024-10-11 19:42:54,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:54,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 126 [2024-10-11 19:42:54,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:56,894 INFO L124 PetriNetUnfolderBase]: 1952/3758 cut-off events. [2024-10-11 19:42:56,894 INFO L125 PetriNetUnfolderBase]: For 8743/8743 co-relation queries the response was YES. [2024-10-11 19:42:56,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12054 conditions, 3758 events. 1952/3758 cut-off events. For 8743/8743 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 26306 event pairs, 1070 based on Foata normal form. 70/3814 useless extension candidates. Maximal degree in co-relation 8993. Up to 2868 conditions per place. [2024-10-11 19:42:56,909 INFO L140 encePairwiseOnDemand]: 116/126 looper letters, 109 selfloop transitions, 23 changer transitions 0/160 dead transitions. [2024-10-11 19:42:56,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 160 transitions, 1143 flow [2024-10-11 19:42:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:42:56,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:42:56,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 389 transitions. [2024-10-11 19:42:56,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5145502645502645 [2024-10-11 19:42:56,912 INFO L175 Difference]: Start difference. First operand has 126 places, 111 transitions, 620 flow. Second operand 6 states and 389 transitions. [2024-10-11 19:42:56,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 160 transitions, 1143 flow [2024-10-11 19:42:56,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 160 transitions, 1098 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-11 19:42:56,930 INFO L231 Difference]: Finished difference. Result has 129 places, 134 transitions, 826 flow [2024-10-11 19:42:56,930 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=587, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=826, PETRI_PLACES=129, PETRI_TRANSITIONS=134} [2024-10-11 19:42:56,930 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 13 predicate places. [2024-10-11 19:42:56,931 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 134 transitions, 826 flow [2024-10-11 19:42:56,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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) [2024-10-11 19:42:56,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:56,931 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:56,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)] Ended with exit code 0 [2024-10-11 19:42:57,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:57,132 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:57,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:57,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1603139404, now seen corresponding path program 1 times [2024-10-11 19:42:57,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:57,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922869325] [2024-10-11 19:42:57,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:57,133 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 [2024-10-11 19:42:57,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:57,134 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:57,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (16)] Waiting until timeout for monitored process [2024-10-11 19:42:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:57,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 19:42:57,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:57,311 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:57,312 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:57,312 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:42:57,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 32 treesize of output 41 [2024-10-11 19:42:57,376 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:42:57,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 49 [2024-10-11 19:42:57,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:57,387 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:57,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:57,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922869325] [2024-10-11 19:42:57,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1922869325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:57,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:57,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:42:57,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243390772] [2024-10-11 19:42:57,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:57,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:42:57,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:57,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:42:57,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:42:57,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 126 [2024-10-11 19:42:57,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 134 transitions, 826 flow. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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) [2024-10-11 19:42:57,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:57,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 126 [2024-10-11 19:42:57,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:58,448 INFO L124 PetriNetUnfolderBase]: 2168/4270 cut-off events. [2024-10-11 19:42:58,448 INFO L125 PetriNetUnfolderBase]: For 11957/11963 co-relation queries the response was YES. [2024-10-11 19:42:58,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15003 conditions, 4270 events. 2168/4270 cut-off events. For 11957/11963 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 31120 event pairs, 1110 based on Foata normal form. 108/4364 useless extension candidates. Maximal degree in co-relation 13773. Up to 3008 conditions per place. [2024-10-11 19:42:58,467 INFO L140 encePairwiseOnDemand]: 118/126 looper letters, 114 selfloop transitions, 35 changer transitions 0/178 dead transitions. [2024-10-11 19:42:58,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 178 transitions, 1438 flow [2024-10-11 19:42:58,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:42:58,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:42:58,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 334 transitions. [2024-10-11 19:42:58,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5301587301587302 [2024-10-11 19:42:58,468 INFO L175 Difference]: Start difference. First operand has 129 places, 134 transitions, 826 flow. Second operand 5 states and 334 transitions. [2024-10-11 19:42:58,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 178 transitions, 1438 flow [2024-10-11 19:42:58,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 178 transitions, 1418 flow, removed 10 selfloop flow, removed 0 redundant places. [2024-10-11 19:42:58,497 INFO L231 Difference]: Finished difference. Result has 136 places, 153 transitions, 1136 flow [2024-10-11 19:42:58,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1136, PETRI_PLACES=136, PETRI_TRANSITIONS=153} [2024-10-11 19:42:58,497 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 20 predicate places. [2024-10-11 19:42:58,497 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 153 transitions, 1136 flow [2024-10-11 19:42:58,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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) [2024-10-11 19:42:58,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:58,498 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:58,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (16)] Forceful destruction successful, exit code 0 [2024-10-11 19:42:58,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:58,698 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:58,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:58,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1620575929, now seen corresponding path program 1 times [2024-10-11 19:42:58,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:58,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187507189] [2024-10-11 19:42:58,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:58,700 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 [2024-10-11 19:42:58,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:58,701 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:58,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (17)] Waiting until timeout for monitored process [2024-10-11 19:42:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:58,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:42:58,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:58,867 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 [2024-10-11 19:42:58,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:58,878 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:58,878 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:58,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187507189] [2024-10-11 19:42:58,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187507189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:58,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:58,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:42:58,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258335373] [2024-10-11 19:42:58,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:58,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:42:58,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:58,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:42:58,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:42:58,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 126 [2024-10-11 19:42:58,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 153 transitions, 1136 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 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) [2024-10-11 19:42:58,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:58,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 126 [2024-10-11 19:42:58,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:42:59,470 INFO L124 PetriNetUnfolderBase]: 2100/4163 cut-off events. [2024-10-11 19:42:59,470 INFO L125 PetriNetUnfolderBase]: For 15742/15758 co-relation queries the response was YES. [2024-10-11 19:42:59,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16352 conditions, 4163 events. 2100/4163 cut-off events. For 15742/15758 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 30533 event pairs, 1242 based on Foata normal form. 1/4123 useless extension candidates. Maximal degree in co-relation 15010. Up to 3461 conditions per place. [2024-10-11 19:42:59,487 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 123 selfloop transitions, 5 changer transitions 0/159 dead transitions. [2024-10-11 19:42:59,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 159 transitions, 1444 flow [2024-10-11 19:42:59,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:42:59,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:42:59,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2024-10-11 19:42:59,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-10-11 19:42:59,489 INFO L175 Difference]: Start difference. First operand has 136 places, 153 transitions, 1136 flow. Second operand 3 states and 210 transitions. [2024-10-11 19:42:59,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 159 transitions, 1444 flow [2024-10-11 19:42:59,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 159 transitions, 1430 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-10-11 19:42:59,517 INFO L231 Difference]: Finished difference. Result has 136 places, 151 transitions, 1128 flow [2024-10-11 19:42:59,517 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=1118, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1128, PETRI_PLACES=136, PETRI_TRANSITIONS=151} [2024-10-11 19:42:59,517 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 20 predicate places. [2024-10-11 19:42:59,518 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 151 transitions, 1128 flow [2024-10-11 19:42:59,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 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) [2024-10-11 19:42:59,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:42:59,518 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:42:59,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (17)] Ended with exit code 0 [2024-10-11 19:42:59,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/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 [2024-10-11 19:42:59,719 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:42:59,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:42:59,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1620575930, now seen corresponding path program 1 times [2024-10-11 19:42:59,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:42:59,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3010868] [2024-10-11 19:42:59,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:42:59,720 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 [2024-10-11 19:42:59,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:42:59,721 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/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) [2024-10-11 19:42:59,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (18)] Waiting until timeout for monitored process [2024-10-11 19:42:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:42:59,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:42:59,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:42:59,876 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 [2024-10-11 19:42:59,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:42:59,882 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:42:59,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:42:59,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3010868] [2024-10-11 19:42:59,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3010868] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:42:59,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:42:59,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:42:59,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010582241] [2024-10-11 19:42:59,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:42:59,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:42:59,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:42:59,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:42:59,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:42:59,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 126 [2024-10-11 19:42:59,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 151 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 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) [2024-10-11 19:42:59,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:42:59,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 126 [2024-10-11 19:42:59,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:43:00,437 INFO L124 PetriNetUnfolderBase]: 2100/4156 cut-off events. [2024-10-11 19:43:00,438 INFO L125 PetriNetUnfolderBase]: For 15517/15533 co-relation queries the response was YES. [2024-10-11 19:43:00,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16311 conditions, 4156 events. 2100/4156 cut-off events. For 15517/15533 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 30426 event pairs, 1242 based on Foata normal form. 1/4116 useless extension candidates. Maximal degree in co-relation 15684. Up to 3461 conditions per place. [2024-10-11 19:43:00,469 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 123 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2024-10-11 19:43:00,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 157 transitions, 1436 flow [2024-10-11 19:43:00,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:43:00,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:43:00,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2024-10-11 19:43:00,471 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-10-11 19:43:00,471 INFO L175 Difference]: Start difference. First operand has 136 places, 151 transitions, 1128 flow. Second operand 3 states and 210 transitions. [2024-10-11 19:43:00,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 157 transitions, 1436 flow [2024-10-11 19:43:00,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 157 transitions, 1426 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:43:00,513 INFO L231 Difference]: Finished difference. Result has 134 places, 149 transitions, 1124 flow [2024-10-11 19:43:00,513 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=1114, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1124, PETRI_PLACES=134, PETRI_TRANSITIONS=149} [2024-10-11 19:43:00,514 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 18 predicate places. [2024-10-11 19:43:00,514 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 149 transitions, 1124 flow [2024-10-11 19:43:00,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 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) [2024-10-11 19:43:00,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:43:00,515 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:43:00,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (18)] Ended with exit code 0 [2024-10-11 19:43:00,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-clean/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 [2024-10-11 19:43:00,715 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:43:00,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:43:00,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1842184571, now seen corresponding path program 1 times [2024-10-11 19:43:00,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:43:00,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86265875] [2024-10-11 19:43:00,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:43:00,716 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 [2024-10-11 19:43:00,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:43:00,717 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/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) [2024-10-11 19:43:00,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (19)] Waiting until timeout for monitored process [2024-10-11 19:43:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:43:00,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:43:00,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:43:01,033 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_79| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_79|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_79| (_ bv0 1)) |c_#valid|))) is different from true [2024-10-11 19:43:01,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:43:01,046 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:43:01,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:43:01,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86265875] [2024-10-11 19:43:01,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86265875] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:43:01,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:43:01,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:43:01,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503799892] [2024-10-11 19:43:01,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:43:01,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:43:01,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:43:01,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:43:01,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2024-10-11 19:43:01,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 126 [2024-10-11 19:43:01,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 149 transitions, 1124 flow. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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) [2024-10-11 19:43:01,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:43:01,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 126 [2024-10-11 19:43:01,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:43:01,921 INFO L124 PetriNetUnfolderBase]: 2220/4294 cut-off events. [2024-10-11 19:43:01,921 INFO L125 PetriNetUnfolderBase]: For 15796/15796 co-relation queries the response was YES. [2024-10-11 19:43:01,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16933 conditions, 4294 events. 2220/4294 cut-off events. For 15796/15796 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 30427 event pairs, 847 based on Foata normal form. 0/4290 useless extension candidates. Maximal degree in co-relation 16296. Up to 1947 conditions per place. [2024-10-11 19:43:01,942 INFO L140 encePairwiseOnDemand]: 104/126 looper letters, 131 selfloop transitions, 36 changer transitions 4/187 dead transitions. [2024-10-11 19:43:01,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 187 transitions, 1711 flow [2024-10-11 19:43:01,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:43:01,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:43:01,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 252 transitions. [2024-10-11 19:43:01,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-10-11 19:43:01,944 INFO L175 Difference]: Start difference. First operand has 134 places, 149 transitions, 1124 flow. Second operand 5 states and 252 transitions. [2024-10-11 19:43:01,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 187 transitions, 1711 flow [2024-10-11 19:43:01,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 187 transitions, 1701 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:43:01,970 INFO L231 Difference]: Finished difference. Result has 139 places, 163 transitions, 1376 flow [2024-10-11 19:43:01,970 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=1114, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1376, PETRI_PLACES=139, PETRI_TRANSITIONS=163} [2024-10-11 19:43:01,970 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 23 predicate places. [2024-10-11 19:43:01,970 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 163 transitions, 1376 flow [2024-10-11 19:43:01,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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) [2024-10-11 19:43:01,971 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:43:01,971 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:43:01,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (19)] Forceful destruction successful, exit code 0 [2024-10-11 19:43:02,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-clean/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 [2024-10-11 19:43:02,172 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:43:02,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:43:02,172 INFO L85 PathProgramCache]: Analyzing trace with hash 79962136, now seen corresponding path program 1 times [2024-10-11 19:43:02,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:43:02,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259957737] [2024-10-11 19:43:02,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:43:02,173 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 [2024-10-11 19:43:02,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:43:02,174 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/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) [2024-10-11 19:43:02,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (20)] Waiting until timeout for monitored process [2024-10-11 19:43:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:43:02,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:43:02,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:43:02,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:43:02,353 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:43:02,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:43:02,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259957737] [2024-10-11 19:43:02,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259957737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:43:02,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:43:02,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:43:02,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771862864] [2024-10-11 19:43:02,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:43:02,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:43:02,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:43:02,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:43:02,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:43:02,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 126 [2024-10-11 19:43:02,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 163 transitions, 1376 flow. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 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) [2024-10-11 19:43:02,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:43:02,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 126 [2024-10-11 19:43:02,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:43:02,599 INFO L124 PetriNetUnfolderBase]: 225/436 cut-off events. [2024-10-11 19:43:02,599 INFO L125 PetriNetUnfolderBase]: For 1737/1737 co-relation queries the response was YES. [2024-10-11 19:43:02,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1912 conditions, 436 events. 225/436 cut-off events. For 1737/1737 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1474 event pairs, 31 based on Foata normal form. 36/471 useless extension candidates. Maximal degree in co-relation 1883. Up to 226 conditions per place. [2024-10-11 19:43:02,601 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 64 selfloop transitions, 9 changer transitions 0/96 dead transitions. [2024-10-11 19:43:02,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 96 transitions, 720 flow [2024-10-11 19:43:02,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:43:02,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:43:02,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 263 transitions. [2024-10-11 19:43:02,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5218253968253969 [2024-10-11 19:43:02,602 INFO L175 Difference]: Start difference. First operand has 139 places, 163 transitions, 1376 flow. Second operand 4 states and 263 transitions. [2024-10-11 19:43:02,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 96 transitions, 720 flow [2024-10-11 19:43:02,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 96 transitions, 497 flow, removed 50 selfloop flow, removed 33 redundant places. [2024-10-11 19:43:02,606 INFO L231 Difference]: Finished difference. Result has 89 places, 76 transitions, 287 flow [2024-10-11 19:43:02,607 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=287, PETRI_PLACES=89, PETRI_TRANSITIONS=76} [2024-10-11 19:43:02,607 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -27 predicate places. [2024-10-11 19:43:02,607 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 76 transitions, 287 flow [2024-10-11 19:43:02,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 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) [2024-10-11 19:43:02,607 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:43:02,607 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:43:02,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (20)] Forceful destruction successful, exit code 0 [2024-10-11 19:43:02,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-clean/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 [2024-10-11 19:43:02,808 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:43:02,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:43:02,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1331630625, now seen corresponding path program 1 times [2024-10-11 19:43:02,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:43:02,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047796415] [2024-10-11 19:43:02,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:43:02,809 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 [2024-10-11 19:43:02,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:43:02,811 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/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) [2024-10-11 19:43:02,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (21)] Waiting until timeout for monitored process [2024-10-11 19:43:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:43:03,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 19:43:03,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:43:03,149 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 [2024-10-11 19:43:03,216 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-10-11 19:43:03,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-10-11 19:43:03,254 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 13 [2024-10-11 19:43:03,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:43:03,259 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:43:03,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:43:03,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047796415] [2024-10-11 19:43:03,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047796415] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:43:03,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:43:03,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:43:03,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957358232] [2024-10-11 19:43:03,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:43:03,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:43:03,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:43:03,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:43:03,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:43:03,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 126 [2024-10-11 19:43:03,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 76 transitions, 287 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2024-10-11 19:43:03,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:43:03,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 126 [2024-10-11 19:43:03,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:43:03,613 INFO L124 PetriNetUnfolderBase]: 225/435 cut-off events. [2024-10-11 19:43:03,613 INFO L125 PetriNetUnfolderBase]: For 590/590 co-relation queries the response was YES. [2024-10-11 19:43:03,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1334 conditions, 435 events. 225/435 cut-off events. For 590/590 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1374 event pairs, 127 based on Foata normal form. 0/435 useless extension candidates. Maximal degree in co-relation 1322. Up to 294 conditions per place. [2024-10-11 19:43:03,615 INFO L140 encePairwiseOnDemand]: 121/126 looper letters, 56 selfloop transitions, 7 changer transitions 0/83 dead transitions. [2024-10-11 19:43:03,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 83 transitions, 443 flow [2024-10-11 19:43:03,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:43:03,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:43:03,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2024-10-11 19:43:03,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2024-10-11 19:43:03,616 INFO L175 Difference]: Start difference. First operand has 89 places, 76 transitions, 287 flow. Second operand 4 states and 219 transitions. [2024-10-11 19:43:03,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 83 transitions, 443 flow [2024-10-11 19:43:03,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 83 transitions, 425 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:43:03,619 INFO L231 Difference]: Finished difference. Result has 88 places, 75 transitions, 281 flow [2024-10-11 19:43:03,621 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=281, PETRI_PLACES=88, PETRI_TRANSITIONS=75} [2024-10-11 19:43:03,621 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -28 predicate places. [2024-10-11 19:43:03,621 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 75 transitions, 281 flow [2024-10-11 19:43:03,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2024-10-11 19:43:03,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:43:03,622 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:43:03,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (21)] Ended with exit code 0 [2024-10-11 19:43:03,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-clean/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 [2024-10-11 19:43:03,822 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:43:03,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:43:03,823 INFO L85 PathProgramCache]: Analyzing trace with hash -652910952, now seen corresponding path program 1 times [2024-10-11 19:43:03,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:43:03,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206976974] [2024-10-11 19:43:03,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:43:03,823 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 [2024-10-11 19:43:03,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:43:03,824 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/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) [2024-10-11 19:43:03,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (22)] Waiting until timeout for monitored process [2024-10-11 19:43:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:43:04,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 19:43:04,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:43:04,131 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 [2024-10-11 19:43:04,134 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 [2024-10-11 19:43:04,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:43:04,355 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 14 treesize of output 9 [2024-10-11 19:43:04,365 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 19:43:04,365 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 [2024-10-11 19:43:04,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:43:04,390 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:43:04,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:43:04,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206976974] [2024-10-11 19:43:04,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206976974] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:43:04,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:43:04,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:43:04,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112120600] [2024-10-11 19:43:04,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:43:04,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:43:04,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:43:04,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:43:04,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:43:04,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 126 [2024-10-11 19:43:04,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 75 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 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) [2024-10-11 19:43:04,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:43:04,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 126 [2024-10-11 19:43:04,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:43:04,738 INFO L124 PetriNetUnfolderBase]: 225/429 cut-off events. [2024-10-11 19:43:04,739 INFO L125 PetriNetUnfolderBase]: For 420/420 co-relation queries the response was YES. [2024-10-11 19:43:04,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 429 events. 225/429 cut-off events. For 420/420 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1372 event pairs, 87 based on Foata normal form. 1/430 useless extension candidates. Maximal degree in co-relation 1282. Up to 215 conditions per place. [2024-10-11 19:43:04,740 INFO L140 encePairwiseOnDemand]: 114/126 looper letters, 51 selfloop transitions, 12 changer transitions 0/77 dead transitions. [2024-10-11 19:43:04,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 77 transitions, 427 flow [2024-10-11 19:43:04,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:43:04,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:43:04,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 294 transitions. [2024-10-11 19:43:04,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2024-10-11 19:43:04,742 INFO L175 Difference]: Start difference. First operand has 88 places, 75 transitions, 281 flow. Second operand 7 states and 294 transitions. [2024-10-11 19:43:04,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 77 transitions, 427 flow [2024-10-11 19:43:04,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 77 transitions, 413 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:43:04,744 INFO L231 Difference]: Finished difference. Result has 85 places, 69 transitions, 279 flow [2024-10-11 19:43:04,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=279, PETRI_PLACES=85, PETRI_TRANSITIONS=69} [2024-10-11 19:43:04,745 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -31 predicate places. [2024-10-11 19:43:04,745 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 69 transitions, 279 flow [2024-10-11 19:43:04,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 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) [2024-10-11 19:43:04,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:43:04,745 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:43:04,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (22)] Ended with exit code 0 [2024-10-11 19:43:04,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-clean/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 [2024-10-11 19:43:04,946 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (and 48 more)] === [2024-10-11 19:43:04,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:43:04,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1675284071, now seen corresponding path program 1 times [2024-10-11 19:43:04,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:43:04,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105123116] [2024-10-11 19:43:04,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:43:04,947 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 [2024-10-11 19:43:04,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:43:04,948 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-clean/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) [2024-10-11 19:43:04,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 (23)] Waiting until timeout for monitored process [2024-10-11 19:43:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:43:05,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-11 19:43:05,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:43:05,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:43:05,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:43:05,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:43:05,445 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:43:05,445 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-11 19:43:05,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2024-10-11 19:43:05,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:43:05,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 85 [2024-10-11 19:43:07,889 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 19:43:07,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 133 treesize of output 69 [2024-10-11 19:43:07,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:43:07,910 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:43:07,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:43:07,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105123116] [2024-10-11 19:43:07,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105123116] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:43:07,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:43:07,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 19:43:07,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577693568] [2024-10-11 19:43:07,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:43:07,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 19:43:07,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:43:07,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 19:43:07,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=41, Unknown=1, NotChecked=0, Total=56 [2024-10-11 19:43:09,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:11,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:14,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:15,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:17,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:19,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:21,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:23,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:25,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:27,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:30,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:31,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:33,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:36,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:38,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:39,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:42,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:43,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:45,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:47,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:49,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:51,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:54,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:56,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:43:58,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:44:00,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 19:44:00,282 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 126 [2024-10-11 19:44:00,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 69 transitions, 279 flow. Second operand has 8 states, 8 states have (on average 26.125) internal successors, (209), 8 states have internal predecessors, (209), 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) [2024-10-11 19:44:00,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:44:00,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 126 [2024-10-11 19:44:00,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand