./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:58:43,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:58:43,191 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:58:43,197 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:58:43,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:58:43,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:58:43,218 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:58:43,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:58:43,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:58:43,219 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:58:43,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:58:43,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:58:43,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:58:43,220 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:58:43,220 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:58:43,220 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:58:43,221 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:58:43,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:58:43,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:43,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:58:43,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:58:43,222 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:58:43,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:58:43,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:58:43,222 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:58:43,222 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:58:43,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:58:43,222 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e [2025-03-04 09:58:43,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:58:43,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:58:43,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:58:43,467 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:58:43,467 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:58:43,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2025-03-04 09:58:44,655 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b96b036c5/3be47ff6eef14dd8ba182dc22cda1131/FLAGeab8853c8 [2025-03-04 09:58:44,987 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:58:44,988 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2025-03-04 09:58:45,027 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b96b036c5/3be47ff6eef14dd8ba182dc22cda1131/FLAGeab8853c8 [2025-03-04 09:58:45,052 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b96b036c5/3be47ff6eef14dd8ba182dc22cda1131 [2025-03-04 09:58:45,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:58:45,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:58:45,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:45,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:58:45,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:58:45,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:45" (1/1) ... [2025-03-04 09:58:45,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ff858a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:45, skipping insertion in model container [2025-03-04 09:58:45,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:45" (1/1) ... [2025-03-04 09:58:45,109 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:58:45,344 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:45,351 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:45,356 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:45,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:45,380 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) [2025-03-04 09:58:45,381 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16f59be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:45, skipping insertion in model container [2025-03-04 09:58:45,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:45,381 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-04 09:58:45,385 INFO L158 Benchmark]: Toolchain (without parser) took 325.71ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 90.7MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:45,386 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 201.3MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:45,386 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.87ms. Allocated memory is still 142.6MB. Free memory was 108.2MB in the beginning and 90.7MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:45,387 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 201.3MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.87ms. Allocated memory is still 142.6MB. Free memory was 108.2MB in the beginning and 90.7MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. 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/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:58:47,089 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:58:47,170 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-03-04 09:58:47,175 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:58:47,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:58:47,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:58:47,193 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:58:47,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:58:47,193 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:58:47,193 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:58:47,193 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:58:47,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:58:47,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:58:47,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:58:47,194 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:58:47,195 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:58:47,195 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:58:47,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:58:47,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:58:47,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:58:47,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:47,195 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:58:47,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:58:47,195 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-04 09:58:47,195 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-04 09:58:47,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:58:47,195 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:58:47,195 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:58:47,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:58:47,195 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e [2025-03-04 09:58:47,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:58:47,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:58:47,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:58:47,492 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:58:47,492 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:58:47,492 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2025-03-04 09:58:48,627 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/876af2e13/b6bce0f173a1493ea8143c20b365a7a3/FLAG50dc9e899 [2025-03-04 09:58:48,920 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:58:48,920 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2025-03-04 09:58:48,946 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/876af2e13/b6bce0f173a1493ea8143c20b365a7a3/FLAG50dc9e899 [2025-03-04 09:58:49,204 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/876af2e13/b6bce0f173a1493ea8143c20b365a7a3 [2025-03-04 09:58:49,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:58:49,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:58:49,210 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:49,210 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:58:49,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:58:49,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:49" (1/1) ... [2025-03-04 09:58:49,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126bacdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49, skipping insertion in model container [2025-03-04 09:58:49,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:49" (1/1) ... [2025-03-04 09:58:49,250 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:58:49,492 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:49,501 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:49,506 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:49,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:49,522 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-04 09:58:49,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:58:49,569 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:49,572 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:49,574 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 09:58:49,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:49,592 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:58:49,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:49,682 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:58:49,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49 WrapperNode [2025-03-04 09:58:49,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:49,685 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:58:49,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:58:49,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:58:49,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49" (1/1) ... [2025-03-04 09:58:49,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49" (1/1) ... [2025-03-04 09:58:49,733 INFO L138 Inliner]: procedures = 251, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 152 [2025-03-04 09:58:49,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:58:49,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:58:49,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:58:49,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:58:49,741 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49" (1/1) ... [2025-03-04 09:58:49,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49" (1/1) ... [2025-03-04 09:58:49,745 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49" (1/1) ... [2025-03-04 09:58:49,765 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 15, 2]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 8, 2]. [2025-03-04 09:58:49,769 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49" (1/1) ... [2025-03-04 09:58:49,769 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49" (1/1) ... [2025-03-04 09:58:49,789 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49" (1/1) ... [2025-03-04 09:58:49,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49" (1/1) ... [2025-03-04 09:58:49,796 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49" (1/1) ... [2025-03-04 09:58:49,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49" (1/1) ... [2025-03-04 09:58:49,809 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:58:49,810 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:58:49,810 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:58:49,810 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:58:49,811 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49" (1/1) ... [2025-03-04 09:58:49,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:49,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:49,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 09:58:49,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 09:58:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-04 09:58:49,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-04 09:58:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-04 09:58:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-03-04 09:58:49,860 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-03-04 09:58:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 09:58:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 09:58:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 09:58:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-04 09:58:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-04 09:58:49,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-04 09:58:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-04 09:58:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-04 09:58:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-04 09:58:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 09:58:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 09:58:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 09:58:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:58:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 09:58:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 09:58:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 09:58:49,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:58:49,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:58:49,868 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 09:58:50,094 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:58:50,096 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:58:50,447 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:58:50,447 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:58:50,600 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:58:50,600 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:58:50,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:50 BoogieIcfgContainer [2025-03-04 09:58:50,601 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:58:50,604 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:58:50,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:58:50,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:58:50,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:58:49" (1/3) ... [2025-03-04 09:58:50,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197dd66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:50, skipping insertion in model container [2025-03-04 09:58:50,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:49" (2/3) ... [2025-03-04 09:58:50,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197dd66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:50, skipping insertion in model container [2025-03-04 09:58:50,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:50" (3/3) ... [2025-03-04 09:58:50,611 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2025-03-04 09:58:50,622 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:58:50,624 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_5-container_of.i that has 2 procedures, 99 locations, 1 initial locations, 0 loop locations, and 41 error locations. [2025-03-04 09:58:50,624 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:58:50,692 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 09:58:50,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 124 transitions, 262 flow [2025-03-04 09:58:50,776 INFO L124 PetriNetUnfolderBase]: 14/157 cut-off events. [2025-03-04 09:58:50,779 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-04 09:58:50,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 14/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 504 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2025-03-04 09:58:50,782 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 124 transitions, 262 flow [2025-03-04 09:58:50,788 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 122 transitions, 256 flow [2025-03-04 09:58:50,794 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:58:50,805 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;@6a45cfa7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:58:50,805 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2025-03-04 09:58:50,809 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:58:50,810 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2025-03-04 09:58:50,810 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:50,810 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:50,810 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-04 09:58:50,811 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:58:50,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:50,814 INFO L85 PathProgramCache]: Analyzing trace with hash 559008, now seen corresponding path program 1 times [2025-03-04 09:58:50,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:50,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [165909784] [2025-03-04 09:58:50,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:50,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:50,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:50,828 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:58:50,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 09:58:50,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 09:58:50,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 09:58:50,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:50,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:50,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 09:58:50,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:51,007 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 [2025-03-04 09:58:51,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:51,022 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:51,022 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:51,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165909784] [2025-03-04 09:58:51,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165909784] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:51,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:51,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:58:51,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641510032] [2025-03-04 09:58:51,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:51,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:51,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:51,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:51,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:51,110 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-03-04 09:58:51,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 122 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:51,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:51,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-03-04 09:58:51,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:52,339 INFO L124 PetriNetUnfolderBase]: 4409/10835 cut-off events. [2025-03-04 09:58:52,339 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2025-03-04 09:58:52,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17919 conditions, 10835 events. 4409/10835 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 111241 event pairs, 559 based on Foata normal form. 792/8156 useless extension candidates. Maximal degree in co-relation 16922. Up to 6052 conditions per place. [2025-03-04 09:58:52,401 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 94 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2025-03-04 09:58:52,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 134 transitions, 472 flow [2025-03-04 09:58:52,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:52,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:52,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2025-03-04 09:58:52,411 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6075268817204301 [2025-03-04 09:58:52,413 INFO L175 Difference]: Start difference. First operand has 118 places, 122 transitions, 256 flow. Second operand 3 states and 226 transitions. [2025-03-04 09:58:52,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 134 transitions, 472 flow [2025-03-04 09:58:52,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 134 transitions, 464 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:52,420 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2025-03-04 09:58:52,422 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2025-03-04 09:58:52,425 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -8 predicate places. [2025-03-04 09:58:52,425 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2025-03-04 09:58:52,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:52,426 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:52,426 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-04 09:58:52,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 09:58:52,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:52,630 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:58:52,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:52,631 INFO L85 PathProgramCache]: Analyzing trace with hash 559009, now seen corresponding path program 1 times [2025-03-04 09:58:52,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:52,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [191807543] [2025-03-04 09:58:52,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:52,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:52,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:52,636 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:58:52,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 09:58:52,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 09:58:52,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 09:58:52,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:52,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:52,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 09:58:52,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:52,758 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 [2025-03-04 09:58:52,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:52,766 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:52,766 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:52,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191807543] [2025-03-04 09:58:52,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191807543] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:52,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:52,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:58:52,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072101082] [2025-03-04 09:58:52,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:52,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:52,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:52,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:52,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:52,829 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2025-03-04 09:58:52,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:52,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:52,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2025-03-04 09:58:52,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:53,689 INFO L124 PetriNetUnfolderBase]: 4409/10833 cut-off events. [2025-03-04 09:58:53,690 INFO L125 PetriNetUnfolderBase]: For 190/190 co-relation queries the response was YES. [2025-03-04 09:58:53,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18083 conditions, 10833 events. 4409/10833 cut-off events. For 190/190 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 111470 event pairs, 559 based on Foata normal form. 1/7363 useless extension candidates. Maximal degree in co-relation 1994. Up to 6052 conditions per place. [2025-03-04 09:58:53,742 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 93 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2025-03-04 09:58:53,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 132 transitions, 462 flow [2025-03-04 09:58:53,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:53,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:53,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2025-03-04 09:58:53,747 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5913978494623656 [2025-03-04 09:58:53,747 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 220 transitions. [2025-03-04 09:58:53,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 132 transitions, 462 flow [2025-03-04 09:58:53,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 132 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:58:53,752 INFO L231 Difference]: Finished difference. Result has 108 places, 106 transitions, 220 flow [2025-03-04 09:58:53,753 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=108, PETRI_TRANSITIONS=106} [2025-03-04 09:58:53,753 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2025-03-04 09:58:53,754 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 106 transitions, 220 flow [2025-03-04 09:58:53,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:53,754 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:53,754 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 09:58:53,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 09:58:53,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:53,956 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:58:53,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:53,957 INFO L85 PathProgramCache]: Analyzing trace with hash 17327685, now seen corresponding path program 1 times [2025-03-04 09:58:53,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:53,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [710971421] [2025-03-04 09:58:53,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:53,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:53,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:53,960 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:58:53,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 09:58:54,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 09:58:54,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 09:58:54,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:54,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:54,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 09:58:54,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:54,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:54,064 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:54,065 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:54,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710971421] [2025-03-04 09:58:54,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710971421] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:54,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:54,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:58:54,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892527041] [2025-03-04 09:58:54,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:54,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:54,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:54,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:54,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:54,121 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2025-03-04 09:58:54,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 106 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:54,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:54,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2025-03-04 09:58:54,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:54,869 INFO L124 PetriNetUnfolderBase]: 4773/8451 cut-off events. [2025-03-04 09:58:54,869 INFO L125 PetriNetUnfolderBase]: For 195/195 co-relation queries the response was YES. [2025-03-04 09:58:54,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16263 conditions, 8451 events. 4773/8451 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 63079 event pairs, 4407 based on Foata normal form. 0/5674 useless extension candidates. Maximal degree in co-relation 8903. Up to 7034 conditions per place. [2025-03-04 09:58:54,902 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 93 selfloop transitions, 3 changer transitions 2/133 dead transitions. [2025-03-04 09:58:54,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 133 transitions, 468 flow [2025-03-04 09:58:54,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:54,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:54,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2025-03-04 09:58:54,952 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6021505376344086 [2025-03-04 09:58:54,952 INFO L175 Difference]: Start difference. First operand has 108 places, 106 transitions, 220 flow. Second operand 3 states and 224 transitions. [2025-03-04 09:58:54,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 133 transitions, 468 flow [2025-03-04 09:58:54,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 133 transitions, 464 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:58:54,960 INFO L231 Difference]: Finished difference. Result has 109 places, 105 transitions, 225 flow [2025-03-04 09:58:54,960 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=109, PETRI_TRANSITIONS=105} [2025-03-04 09:58:54,962 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -9 predicate places. [2025-03-04 09:58:54,962 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 105 transitions, 225 flow [2025-03-04 09:58:54,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:54,962 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:54,962 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:54,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 09:58:55,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:55,167 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:58:55,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:55,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1557223967, now seen corresponding path program 1 times [2025-03-04 09:58:55,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:55,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1060730348] [2025-03-04 09:58:55,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:55,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:55,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:55,172 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:58:55,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 09:58:55,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 09:58:55,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 09:58:55,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:55,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:55,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 09:58:55,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:55,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:55,285 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:55,285 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:55,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060730348] [2025-03-04 09:58:55,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060730348] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:55,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:55,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:58:55,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701861269] [2025-03-04 09:58:55,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:55,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:58:55,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:55,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:58:55,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:58:55,364 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 124 [2025-03-04 09:58:55,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 105 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2025-03-04 09:58:55,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:55,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 124 [2025-03-04 09:58:55,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:56,135 INFO L124 PetriNetUnfolderBase]: 5136/10771 cut-off events. [2025-03-04 09:58:56,136 INFO L125 PetriNetUnfolderBase]: For 591/591 co-relation queries the response was YES. [2025-03-04 09:58:56,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19345 conditions, 10771 events. 5136/10771 cut-off events. For 591/591 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 98939 event pairs, 559 based on Foata normal form. 0/8147 useless extension candidates. Maximal degree in co-relation 18015. Up to 6049 conditions per place. [2025-03-04 09:58:56,179 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 120 selfloop transitions, 5 changer transitions 0/152 dead transitions. [2025-03-04 09:58:56,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 152 transitions, 569 flow [2025-03-04 09:58:56,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:58:56,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:58:56,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 266 transitions. [2025-03-04 09:58:56,184 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5362903225806451 [2025-03-04 09:58:56,184 INFO L175 Difference]: Start difference. First operand has 109 places, 105 transitions, 225 flow. Second operand 4 states and 266 transitions. [2025-03-04 09:58:56,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 152 transitions, 569 flow [2025-03-04 09:58:56,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 152 transitions, 558 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-03-04 09:58:56,203 INFO L231 Difference]: Finished difference. Result has 104 places, 100 transitions, 214 flow [2025-03-04 09:58:56,204 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=104, PETRI_TRANSITIONS=100} [2025-03-04 09:58:56,204 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -14 predicate places. [2025-03-04 09:58:56,204 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 214 flow [2025-03-04 09:58:56,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2025-03-04 09:58:56,204 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:56,205 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:56,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 09:58:56,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:56,409 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:58:56,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:56,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1557223966, now seen corresponding path program 1 times [2025-03-04 09:58:56,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:56,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1281955550] [2025-03-04 09:58:56,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:56,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:56,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:56,412 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:58:56,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 09:58:56,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 09:58:56,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 09:58:56,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:56,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:56,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 09:58:56,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:56,511 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 [2025-03-04 09:58:56,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:56,552 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:56,552 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:56,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281955550] [2025-03-04 09:58:56,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281955550] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:56,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:56,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:58:56,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563792600] [2025-03-04 09:58:56,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:56,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:56,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:56,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:56,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:56,620 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 124 [2025-03-04 09:58:56,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 100 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:56,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:56,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 124 [2025-03-04 09:58:56,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:57,331 INFO L124 PetriNetUnfolderBase]: 4408/8119 cut-off events. [2025-03-04 09:58:57,332 INFO L125 PetriNetUnfolderBase]: For 388/388 co-relation queries the response was YES. [2025-03-04 09:58:57,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15582 conditions, 8119 events. 4408/8119 cut-off events. For 388/388 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 62485 event pairs, 3107 based on Foata normal form. 394/6145 useless extension candidates. Maximal degree in co-relation 6668. Up to 4910 conditions per place. [2025-03-04 09:58:57,368 INFO L140 encePairwiseOnDemand]: 117/124 looper letters, 105 selfloop transitions, 3 changer transitions 0/133 dead transitions. [2025-03-04 09:58:57,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 133 transitions, 498 flow [2025-03-04 09:58:57,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:57,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:57,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2025-03-04 09:58:57,369 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5994623655913979 [2025-03-04 09:58:57,370 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 214 flow. Second operand 3 states and 223 transitions. [2025-03-04 09:58:57,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 133 transitions, 498 flow [2025-03-04 09:58:57,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 133 transitions, 486 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:58:57,374 INFO L231 Difference]: Finished difference. Result has 104 places, 101 transitions, 225 flow [2025-03-04 09:58:57,374 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=104, PETRI_TRANSITIONS=101} [2025-03-04 09:58:57,375 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -14 predicate places. [2025-03-04 09:58:57,375 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 101 transitions, 225 flow [2025-03-04 09:58:57,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:57,375 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:57,375 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:57,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-04 09:58:57,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:57,576 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:58:57,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:57,576 INFO L85 PathProgramCache]: Analyzing trace with hash -921128507, now seen corresponding path program 1 times [2025-03-04 09:58:57,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:57,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345035449] [2025-03-04 09:58:57,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:57,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:57,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:57,578 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:58:57,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 09:58:57,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 09:58:57,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 09:58:57,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:57,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:57,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 09:58:57,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:57,688 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 [2025-03-04 09:58:57,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:57,723 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:57,723 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:57,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345035449] [2025-03-04 09:58:57,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345035449] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:57,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:57,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:57,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967557194] [2025-03-04 09:58:57,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:57,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:57,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:57,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:57,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:57,823 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:58:57,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 101 transitions, 225 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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) [2025-03-04 09:58:57,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:57,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:58:57,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:58,652 INFO L124 PetriNetUnfolderBase]: 3844/8014 cut-off events. [2025-03-04 09:58:58,652 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2025-03-04 09:58:58,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14903 conditions, 8014 events. 3844/8014 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 67365 event pairs, 253 based on Foata normal form. 0/6199 useless extension candidates. Maximal degree in co-relation 9082. Up to 3713 conditions per place. [2025-03-04 09:58:58,670 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 169 selfloop transitions, 13 changer transitions 1/214 dead transitions. [2025-03-04 09:58:58,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 214 transitions, 830 flow [2025-03-04 09:58:58,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:58:58,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:58:58,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 534 transitions. [2025-03-04 09:58:58,672 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5383064516129032 [2025-03-04 09:58:58,672 INFO L175 Difference]: Start difference. First operand has 104 places, 101 transitions, 225 flow. Second operand 8 states and 534 transitions. [2025-03-04 09:58:58,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 214 transitions, 830 flow [2025-03-04 09:58:58,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 214 transitions, 823 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:58:58,680 INFO L231 Difference]: Finished difference. Result has 114 places, 110 transitions, 313 flow [2025-03-04 09:58:58,680 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=313, PETRI_PLACES=114, PETRI_TRANSITIONS=110} [2025-03-04 09:58:58,680 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -4 predicate places. [2025-03-04 09:58:58,680 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 110 transitions, 313 flow [2025-03-04 09:58:58,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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) [2025-03-04 09:58:58,681 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:58,681 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:58,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-04 09:58:58,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:58,881 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:58:58,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:58,882 INFO L85 PathProgramCache]: Analyzing trace with hash -921128506, now seen corresponding path program 1 times [2025-03-04 09:58:58,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:58:58,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1212748019] [2025-03-04 09:58:58,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:58,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:58:58,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:58,885 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:58:58,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 09:58:58,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 09:58:58,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 09:58:58,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:58,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:58,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 09:58:58,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:58:58,995 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 [2025-03-04 09:58:59,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:59,053 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:58:59,053 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:58:59,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212748019] [2025-03-04 09:58:59,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212748019] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:59,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:59,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:59,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357959821] [2025-03-04 09:58:59,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:59,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:59,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:58:59,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:59,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:59,212 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:58:59,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 110 transitions, 313 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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) [2025-03-04 09:58:59,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:59,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:58:59,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:59,910 INFO L124 PetriNetUnfolderBase]: 2867/6051 cut-off events. [2025-03-04 09:58:59,910 INFO L125 PetriNetUnfolderBase]: For 2275/2275 co-relation queries the response was YES. [2025-03-04 09:58:59,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12516 conditions, 6051 events. 2867/6051 cut-off events. For 2275/2275 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 48269 event pairs, 257 based on Foata normal form. 524/5632 useless extension candidates. Maximal degree in co-relation 11053. Up to 3099 conditions per place. [2025-03-04 09:58:59,930 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 151 selfloop transitions, 10 changer transitions 2/194 dead transitions. [2025-03-04 09:58:59,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 194 transitions, 827 flow [2025-03-04 09:58:59,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:58:59,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:58:59,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 465 transitions. [2025-03-04 09:58:59,932 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2025-03-04 09:58:59,932 INFO L175 Difference]: Start difference. First operand has 114 places, 110 transitions, 313 flow. Second operand 7 states and 465 transitions. [2025-03-04 09:58:59,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 194 transitions, 827 flow [2025-03-04 09:58:59,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 194 transitions, 827 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 09:58:59,944 INFO L231 Difference]: Finished difference. Result has 123 places, 112 transitions, 366 flow [2025-03-04 09:58:59,944 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=366, PETRI_PLACES=123, PETRI_TRANSITIONS=112} [2025-03-04 09:58:59,945 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2025-03-04 09:58:59,945 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 112 transitions, 366 flow [2025-03-04 09:58:59,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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) [2025-03-04 09:58:59,945 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:59,945 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:59,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-04 09:59:00,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:00,146 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:00,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:00,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1357901531, now seen corresponding path program 1 times [2025-03-04 09:59:00,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:00,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1914188797] [2025-03-04 09:59:00,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:00,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:00,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:00,149 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:00,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 09:59:00,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 09:59:00,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 09:59:00,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:00,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:00,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 09:59:00,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:00,255 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 [2025-03-04 09:59:00,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:00,306 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:00,306 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:00,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914188797] [2025-03-04 09:59:00,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914188797] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:00,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:00,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:59:00,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792925107] [2025-03-04 09:59:00,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:00,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:00,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:00,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:00,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:00,423 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:59:00,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 112 transitions, 366 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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) [2025-03-04 09:59:00,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:00,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:59:00,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:01,128 INFO L124 PetriNetUnfolderBase]: 2636/5484 cut-off events. [2025-03-04 09:59:01,128 INFO L125 PetriNetUnfolderBase]: For 3778/3778 co-relation queries the response was YES. [2025-03-04 09:59:01,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12310 conditions, 5484 events. 2636/5484 cut-off events. For 3778/3778 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 42523 event pairs, 191 based on Foata normal form. 0/4807 useless extension candidates. Maximal degree in co-relation 10986. Up to 2221 conditions per place. [2025-03-04 09:59:01,146 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 174 selfloop transitions, 17 changer transitions 0/222 dead transitions. [2025-03-04 09:59:01,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 222 transitions, 1105 flow [2025-03-04 09:59:01,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:59:01,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:59:01,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 530 transitions. [2025-03-04 09:59:01,148 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5342741935483871 [2025-03-04 09:59:01,148 INFO L175 Difference]: Start difference. First operand has 123 places, 112 transitions, 366 flow. Second operand 8 states and 530 transitions. [2025-03-04 09:59:01,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 222 transitions, 1105 flow [2025-03-04 09:59:01,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 222 transitions, 1075 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 09:59:01,156 INFO L231 Difference]: Finished difference. Result has 129 places, 121 transitions, 469 flow [2025-03-04 09:59:01,156 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=469, PETRI_PLACES=129, PETRI_TRANSITIONS=121} [2025-03-04 09:59:01,157 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 11 predicate places. [2025-03-04 09:59:01,157 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 121 transitions, 469 flow [2025-03-04 09:59:01,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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) [2025-03-04 09:59:01,157 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:01,157 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:01,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 09:59:01,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:01,359 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:01,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:01,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1357901530, now seen corresponding path program 1 times [2025-03-04 09:59:01,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:01,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1332388357] [2025-03-04 09:59:01,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:01,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:01,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:01,361 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:01,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 09:59:01,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 09:59:01,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 09:59:01,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:01,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:01,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 09:59:01,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:01,460 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 [2025-03-04 09:59:01,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:01,524 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:01,524 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:01,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332388357] [2025-03-04 09:59:01,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332388357] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:01,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:01,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:59:01,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024963539] [2025-03-04 09:59:01,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:01,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:01,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:01,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:01,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:01,640 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:59:01,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 121 transitions, 469 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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) [2025-03-04 09:59:01,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:01,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:59:01,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:02,327 INFO L124 PetriNetUnfolderBase]: 1987/4195 cut-off events. [2025-03-04 09:59:02,328 INFO L125 PetriNetUnfolderBase]: For 4454/4456 co-relation queries the response was YES. [2025-03-04 09:59:02,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10529 conditions, 4195 events. 1987/4195 cut-off events. For 4454/4456 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 30963 event pairs, 384 based on Foata normal form. 378/4449 useless extension candidates. Maximal degree in co-relation 9449. Up to 2291 conditions per place. [2025-03-04 09:59:02,338 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 145 selfloop transitions, 14 changer transitions 1/191 dead transitions. [2025-03-04 09:59:02,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 191 transitions, 1027 flow [2025-03-04 09:59:02,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:59:02,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:59:02,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 448 transitions. [2025-03-04 09:59:02,340 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2025-03-04 09:59:02,340 INFO L175 Difference]: Start difference. First operand has 129 places, 121 transitions, 469 flow. Second operand 7 states and 448 transitions. [2025-03-04 09:59:02,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 191 transitions, 1027 flow [2025-03-04 09:59:02,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 191 transitions, 1024 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:59:02,347 INFO L231 Difference]: Finished difference. Result has 137 places, 124 transitions, 540 flow [2025-03-04 09:59:02,347 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=540, PETRI_PLACES=137, PETRI_TRANSITIONS=124} [2025-03-04 09:59:02,347 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 19 predicate places. [2025-03-04 09:59:02,347 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 124 transitions, 540 flow [2025-03-04 09:59:02,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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) [2025-03-04 09:59:02,347 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:02,347 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:02,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-04 09:59:02,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:02,548 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:02,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:02,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1382685240, now seen corresponding path program 1 times [2025-03-04 09:59:02,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:02,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [967033223] [2025-03-04 09:59:02,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:02,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:02,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:02,550 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:02,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 09:59:02,624 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 09:59:02,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 09:59:02,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:02,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:02,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 09:59:02,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:02,652 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:02,652 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:02,652 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:02,657 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 [2025-03-04 09:59:02,687 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:02,687 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:02,687 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:02,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:59:02,696 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 73 treesize of output 93 [2025-03-04 09:59:02,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:59:02,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 161 treesize of output 65 [2025-03-04 09:59:02,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:02,789 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:02,789 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:02,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967033223] [2025-03-04 09:59:02,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967033223] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:02,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:02,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:59:02,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266294154] [2025-03-04 09:59:02,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:02,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:02,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:02,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:02,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:59:02,979 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-03-04 09:59:02,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 124 transitions, 540 flow. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 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) [2025-03-04 09:59:02,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:02,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-03-04 09:59:02,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:05,354 INFO L124 PetriNetUnfolderBase]: 2833/5364 cut-off events. [2025-03-04 09:59:05,355 INFO L125 PetriNetUnfolderBase]: For 9062/9066 co-relation queries the response was YES. [2025-03-04 09:59:05,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14860 conditions, 5364 events. 2833/5364 cut-off events. For 9062/9066 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 38532 event pairs, 1545 based on Foata normal form. 244/5468 useless extension candidates. Maximal degree in co-relation 13301. Up to 3777 conditions per place. [2025-03-04 09:59:05,374 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 136 selfloop transitions, 27 changer transitions 0/191 dead transitions. [2025-03-04 09:59:05,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 191 transitions, 1156 flow [2025-03-04 09:59:05,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:59:05,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:59:05,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 379 transitions. [2025-03-04 09:59:05,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5094086021505376 [2025-03-04 09:59:05,376 INFO L175 Difference]: Start difference. First operand has 137 places, 124 transitions, 540 flow. Second operand 6 states and 379 transitions. [2025-03-04 09:59:05,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 191 transitions, 1156 flow [2025-03-04 09:59:05,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 191 transitions, 1131 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 09:59:05,384 INFO L231 Difference]: Finished difference. Result has 141 places, 151 transitions, 788 flow [2025-03-04 09:59:05,384 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=788, PETRI_PLACES=141, PETRI_TRANSITIONS=151} [2025-03-04 09:59:05,385 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 23 predicate places. [2025-03-04 09:59:05,385 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 151 transitions, 788 flow [2025-03-04 09:59:05,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 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) [2025-03-04 09:59:05,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:05,385 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:05,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-04 09:59:05,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:05,586 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:05,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:05,586 INFO L85 PathProgramCache]: Analyzing trace with hash 352473916, now seen corresponding path program 1 times [2025-03-04 09:59:05,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:05,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [602035163] [2025-03-04 09:59:05,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:05,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:05,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:05,588 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:05,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 09:59:05,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:59:05,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:59:05,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:05,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:05,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-04 09:59:05,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:05,699 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 [2025-03-04 09:59:05,703 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 [2025-03-04 09:59:05,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:05,820 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 [2025-03-04 09:59:05,830 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-04 09:59:05,830 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 [2025-03-04 09:59:05,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:05,841 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:05,841 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:05,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602035163] [2025-03-04 09:59:05,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602035163] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:05,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:05,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:59:05,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587516061] [2025-03-04 09:59:05,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:05,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:59:05,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:05,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:59:05,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:59:06,155 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:59:06,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 151 transitions, 788 flow. Second operand has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 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) [2025-03-04 09:59:06,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:06,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:59:06,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:06,991 INFO L124 PetriNetUnfolderBase]: 2928/5803 cut-off events. [2025-03-04 09:59:06,992 INFO L125 PetriNetUnfolderBase]: For 10436/10442 co-relation queries the response was YES. [2025-03-04 09:59:07,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17915 conditions, 5803 events. 2928/5803 cut-off events. For 10436/10442 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 43961 event pairs, 607 based on Foata normal form. 39/5718 useless extension candidates. Maximal degree in co-relation 16083. Up to 2515 conditions per place. [2025-03-04 09:59:07,014 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 195 selfloop transitions, 24 changer transitions 0/251 dead transitions. [2025-03-04 09:59:07,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 251 transitions, 1673 flow [2025-03-04 09:59:07,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:59:07,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:59:07,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 557 transitions. [2025-03-04 09:59:07,016 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49910394265232977 [2025-03-04 09:59:07,016 INFO L175 Difference]: Start difference. First operand has 141 places, 151 transitions, 788 flow. Second operand 9 states and 557 transitions. [2025-03-04 09:59:07,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 251 transitions, 1673 flow [2025-03-04 09:59:07,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 251 transitions, 1664 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:59:07,048 INFO L231 Difference]: Finished difference. Result has 145 places, 149 transitions, 827 flow [2025-03-04 09:59:07,049 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=827, PETRI_PLACES=145, PETRI_TRANSITIONS=149} [2025-03-04 09:59:07,049 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 27 predicate places. [2025-03-04 09:59:07,049 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 149 transitions, 827 flow [2025-03-04 09:59:07,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 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) [2025-03-04 09:59:07,049 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:07,049 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:07,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-04 09:59:07,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:07,250 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:07,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:07,250 INFO L85 PathProgramCache]: Analyzing trace with hash -689377716, now seen corresponding path program 1 times [2025-03-04 09:59:07,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:07,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [737322143] [2025-03-04 09:59:07,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:07,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:07,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:07,252 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:07,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-04 09:59:07,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:59:07,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:59:07,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:07,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:07,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-04 09:59:07,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:07,389 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 [2025-03-04 09:59:07,393 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 [2025-03-04 09:59:07,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:07,492 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 [2025-03-04 09:59:07,502 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-04 09:59:07,503 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 [2025-03-04 09:59:07,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:07,519 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:07,520 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:07,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737322143] [2025-03-04 09:59:07,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737322143] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:07,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:07,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:59:07,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217029023] [2025-03-04 09:59:07,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:07,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:59:07,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:07,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:59:07,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:59:07,810 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:59:07,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 149 transitions, 827 flow. Second operand has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 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) [2025-03-04 09:59:07,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:07,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:59:07,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:08,823 INFO L124 PetriNetUnfolderBase]: 3339/6547 cut-off events. [2025-03-04 09:59:08,823 INFO L125 PetriNetUnfolderBase]: For 14093/14097 co-relation queries the response was YES. [2025-03-04 09:59:08,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20562 conditions, 6547 events. 3339/6547 cut-off events. For 14093/14097 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 51003 event pairs, 887 based on Foata normal form. 76/6532 useless extension candidates. Maximal degree in co-relation 17636. Up to 2361 conditions per place. [2025-03-04 09:59:08,851 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 213 selfloop transitions, 24 changer transitions 0/269 dead transitions. [2025-03-04 09:59:08,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 269 transitions, 1822 flow [2025-03-04 09:59:08,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:59:08,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:59:08,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 572 transitions. [2025-03-04 09:59:08,853 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5125448028673835 [2025-03-04 09:59:08,853 INFO L175 Difference]: Start difference. First operand has 145 places, 149 transitions, 827 flow. Second operand 9 states and 572 transitions. [2025-03-04 09:59:08,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 269 transitions, 1822 flow [2025-03-04 09:59:08,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 269 transitions, 1770 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-03-04 09:59:08,881 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 831 flow [2025-03-04 09:59:08,882 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=765, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=831, PETRI_PLACES=143, PETRI_TRANSITIONS=147} [2025-03-04 09:59:08,882 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 25 predicate places. [2025-03-04 09:59:08,882 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 831 flow [2025-03-04 09:59:08,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 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) [2025-03-04 09:59:08,882 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:08,882 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:08,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-04 09:59:09,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:09,083 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:09,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:09,083 INFO L85 PathProgramCache]: Analyzing trace with hash -916977431, now seen corresponding path program 1 times [2025-03-04 09:59:09,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:09,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305418291] [2025-03-04 09:59:09,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:09,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:09,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:09,110 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:09,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-04 09:59:09,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 09:59:09,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 09:59:09,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:09,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:09,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 09:59:09,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:09,295 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_91| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_91|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_91| (_ bv0 1)) |c_#valid|))) is different from true [2025-03-04 09:59:09,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:09,300 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:09,300 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:09,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305418291] [2025-03-04 09:59:09,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305418291] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:09,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:09,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:59:09,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827536240] [2025-03-04 09:59:09,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:09,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:59:09,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:09,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:59:09,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2025-03-04 09:59:09,335 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 124 [2025-03-04 09:59:09,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 147 transitions, 831 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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) [2025-03-04 09:59:09,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:09,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 124 [2025-03-04 09:59:09,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:10,214 INFO L124 PetriNetUnfolderBase]: 3630/6717 cut-off events. [2025-03-04 09:59:10,215 INFO L125 PetriNetUnfolderBase]: For 16259/16261 co-relation queries the response was YES. [2025-03-04 09:59:10,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22018 conditions, 6717 events. 3630/6717 cut-off events. For 16259/16261 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 49698 event pairs, 1548 based on Foata normal form. 1/6615 useless extension candidates. Maximal degree in co-relation 19043. Up to 2794 conditions per place. [2025-03-04 09:59:10,243 INFO L140 encePairwiseOnDemand]: 98/124 looper letters, 138 selfloop transitions, 37 changer transitions 4/197 dead transitions. [2025-03-04 09:59:10,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 197 transitions, 1422 flow [2025-03-04 09:59:10,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:59:10,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:59:10,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2025-03-04 09:59:10,245 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4032258064516129 [2025-03-04 09:59:10,245 INFO L175 Difference]: Start difference. First operand has 143 places, 147 transitions, 831 flow. Second operand 5 states and 250 transitions. [2025-03-04 09:59:10,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 197 transitions, 1422 flow [2025-03-04 09:59:10,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 197 transitions, 1387 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-03-04 09:59:10,278 INFO L231 Difference]: Finished difference. Result has 144 places, 165 transitions, 1083 flow [2025-03-04 09:59:10,279 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1083, PETRI_PLACES=144, PETRI_TRANSITIONS=165} [2025-03-04 09:59:10,279 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 26 predicate places. [2025-03-04 09:59:10,279 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 165 transitions, 1083 flow [2025-03-04 09:59:10,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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) [2025-03-04 09:59:10,279 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:10,280 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:10,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-04 09:59:10,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:10,480 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:10,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:10,481 INFO L85 PathProgramCache]: Analyzing trace with hash 200944306, now seen corresponding path program 1 times [2025-03-04 09:59:10,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:10,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [730980456] [2025-03-04 09:59:10,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:10,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:10,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:10,483 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:10,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-04 09:59:10,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 09:59:10,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 09:59:10,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:10,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:10,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 09:59:10,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:10,599 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 [2025-03-04 09:59:10,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:10,608 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:10,608 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:10,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730980456] [2025-03-04 09:59:10,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730980456] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:10,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:10,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:59:10,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414902065] [2025-03-04 09:59:10,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:10,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:59:10,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:10,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:59:10,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:59:10,663 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2025-03-04 09:59:10,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 165 transitions, 1083 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) [2025-03-04 09:59:10,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:10,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2025-03-04 09:59:10,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:11,257 INFO L124 PetriNetUnfolderBase]: 3428/6429 cut-off events. [2025-03-04 09:59:11,257 INFO L125 PetriNetUnfolderBase]: For 19210/19270 co-relation queries the response was YES. [2025-03-04 09:59:11,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24906 conditions, 6429 events. 3428/6429 cut-off events. For 19210/19270 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 47451 event pairs, 1989 based on Foata normal form. 25/6327 useless extension candidates. Maximal degree in co-relation 21731. Up to 5351 conditions per place. [2025-03-04 09:59:11,278 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 140 selfloop transitions, 5 changer transitions 0/175 dead transitions. [2025-03-04 09:59:11,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 175 transitions, 1425 flow [2025-03-04 09:59:11,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:59:11,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:59:11,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2025-03-04 09:59:11,279 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5403225806451613 [2025-03-04 09:59:11,279 INFO L175 Difference]: Start difference. First operand has 144 places, 165 transitions, 1083 flow. Second operand 3 states and 201 transitions. [2025-03-04 09:59:11,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 175 transitions, 1425 flow [2025-03-04 09:59:11,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 175 transitions, 1344 flow, removed 18 selfloop flow, removed 4 redundant places. [2025-03-04 09:59:11,315 INFO L231 Difference]: Finished difference. Result has 140 places, 163 transitions, 1008 flow [2025-03-04 09:59:11,316 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=998, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1008, PETRI_PLACES=140, PETRI_TRANSITIONS=163} [2025-03-04 09:59:11,316 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 22 predicate places. [2025-03-04 09:59:11,316 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 163 transitions, 1008 flow [2025-03-04 09:59:11,316 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) [2025-03-04 09:59:11,316 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:11,316 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:59:11,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-04 09:59:11,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:11,517 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:11,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:11,517 INFO L85 PathProgramCache]: Analyzing trace with hash 200944305, now seen corresponding path program 1 times [2025-03-04 09:59:11,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:11,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2083901560] [2025-03-04 09:59:11,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:11,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:11,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:11,520 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:11,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-04 09:59:11,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 09:59:11,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 09:59:11,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:11,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:11,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 09:59:11,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:11,631 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 [2025-03-04 09:59:11,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:11,636 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:11,636 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:11,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083901560] [2025-03-04 09:59:11,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083901560] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:11,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:11,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:59:11,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176588900] [2025-03-04 09:59:11,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:11,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:59:11,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:11,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:59:11,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:59:11,681 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2025-03-04 09:59:11,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 163 transitions, 1008 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) [2025-03-04 09:59:11,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:11,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2025-03-04 09:59:11,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:12,313 INFO L124 PetriNetUnfolderBase]: 3428/6420 cut-off events. [2025-03-04 09:59:12,313 INFO L125 PetriNetUnfolderBase]: For 17396/17456 co-relation queries the response was YES. [2025-03-04 09:59:12,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24527 conditions, 6420 events. 3428/6420 cut-off events. For 17396/17456 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 47343 event pairs, 1989 based on Foata normal form. 25/6318 useless extension candidates. Maximal degree in co-relation 23138. Up to 5351 conditions per place. [2025-03-04 09:59:12,336 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 140 selfloop transitions, 5 changer transitions 0/173 dead transitions. [2025-03-04 09:59:12,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 173 transitions, 1350 flow [2025-03-04 09:59:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:59:12,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:59:12,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2025-03-04 09:59:12,337 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5403225806451613 [2025-03-04 09:59:12,337 INFO L175 Difference]: Start difference. First operand has 140 places, 163 transitions, 1008 flow. Second operand 3 states and 201 transitions. [2025-03-04 09:59:12,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 173 transitions, 1350 flow [2025-03-04 09:59:12,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 173 transitions, 1340 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:59:12,379 INFO L231 Difference]: Finished difference. Result has 138 places, 161 transitions, 1004 flow [2025-03-04 09:59:12,380 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1004, PETRI_PLACES=138, PETRI_TRANSITIONS=161} [2025-03-04 09:59:12,380 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 20 predicate places. [2025-03-04 09:59:12,380 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 161 transitions, 1004 flow [2025-03-04 09:59:12,380 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) [2025-03-04 09:59:12,380 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:12,380 INFO L206 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] [2025-03-04 09:59:12,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-04 09:59:12,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:12,581 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:12,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:12,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1934306716, now seen corresponding path program 1 times [2025-03-04 09:59:12,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:12,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931705404] [2025-03-04 09:59:12,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:12,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:12,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:12,583 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:12,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-04 09:59:12,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 09:59:12,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 09:59:12,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:12,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:12,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-04 09:59:12,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:12,721 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 [2025-03-04 09:59:12,726 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 [2025-03-04 09:59:12,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:12,839 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 [2025-03-04 09:59:12,849 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-03-04 09:59:12,849 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 [2025-03-04 09:59:12,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:12,864 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:12,864 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:12,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931705404] [2025-03-04 09:59:12,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931705404] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:12,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:12,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:59:12,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726642035] [2025-03-04 09:59:12,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:12,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:59:12,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:12,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:59:12,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:59:13,010 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 124 [2025-03-04 09:59:13,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 161 transitions, 1004 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2025-03-04 09:59:13,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:13,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 124 [2025-03-04 09:59:13,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:13,779 INFO L124 PetriNetUnfolderBase]: 3400/6368 cut-off events. [2025-03-04 09:59:13,780 INFO L125 PetriNetUnfolderBase]: For 17480/17540 co-relation queries the response was YES. [2025-03-04 09:59:13,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24382 conditions, 6368 events. 3400/6368 cut-off events. For 17480/17540 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 47311 event pairs, 1740 based on Foata normal form. 24/6295 useless extension candidates. Maximal degree in co-relation 23146. Up to 3047 conditions per place. [2025-03-04 09:59:13,809 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 146 selfloop transitions, 16 changer transitions 0/183 dead transitions. [2025-03-04 09:59:13,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 183 transitions, 1440 flow [2025-03-04 09:59:13,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:59:13,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:59:13,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 226 transitions. [2025-03-04 09:59:13,811 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45564516129032256 [2025-03-04 09:59:13,811 INFO L175 Difference]: Start difference. First operand has 138 places, 161 transitions, 1004 flow. Second operand 4 states and 226 transitions. [2025-03-04 09:59:13,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 183 transitions, 1440 flow [2025-03-04 09:59:13,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 183 transitions, 1430 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:59:13,851 INFO L231 Difference]: Finished difference. Result has 135 places, 157 transitions, 1018 flow [2025-03-04 09:59:13,851 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1018, PETRI_PLACES=135, PETRI_TRANSITIONS=157} [2025-03-04 09:59:13,851 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 17 predicate places. [2025-03-04 09:59:13,851 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 157 transitions, 1018 flow [2025-03-04 09:59:13,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2025-03-04 09:59:13,852 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:13,852 INFO L206 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] [2025-03-04 09:59:13,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-04 09:59:14,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:14,052 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:14,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:14,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1934306715, now seen corresponding path program 1 times [2025-03-04 09:59:14,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:14,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1485903458] [2025-03-04 09:59:14,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:14,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:14,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:14,055 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:14,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-04 09:59:14,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 09:59:14,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 09:59:14,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:14,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:14,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 09:59:14,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:14,189 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 [2025-03-04 09:59:14,235 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-03-04 09:59:14,235 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 [2025-03-04 09:59:14,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:14,245 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:14,245 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:14,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485903458] [2025-03-04 09:59:14,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485903458] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:14,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:14,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:59:14,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538645694] [2025-03-04 09:59:14,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:14,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:59:14,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:14,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:59:14,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:59:14,329 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 124 [2025-03-04 09:59:14,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 157 transitions, 1018 flow. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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) [2025-03-04 09:59:14,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:14,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 124 [2025-03-04 09:59:14,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:15,145 INFO L124 PetriNetUnfolderBase]: 3567/6589 cut-off events. [2025-03-04 09:59:15,145 INFO L125 PetriNetUnfolderBase]: For 19314/19340 co-relation queries the response was YES. [2025-03-04 09:59:15,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25378 conditions, 6589 events. 3567/6589 cut-off events. For 19314/19340 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 47910 event pairs, 1868 based on Foata normal form. 9/6570 useless extension candidates. Maximal degree in co-relation 22148. Up to 3131 conditions per place. [2025-03-04 09:59:15,178 INFO L140 encePairwiseOnDemand]: 115/124 looper letters, 133 selfloop transitions, 18 changer transitions 0/175 dead transitions. [2025-03-04 09:59:15,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 175 transitions, 1412 flow [2025-03-04 09:59:15,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:59:15,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:59:15,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 229 transitions. [2025-03-04 09:59:15,179 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46169354838709675 [2025-03-04 09:59:15,179 INFO L175 Difference]: Start difference. First operand has 135 places, 157 transitions, 1018 flow. Second operand 4 states and 229 transitions. [2025-03-04 09:59:15,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 175 transitions, 1412 flow [2025-03-04 09:59:15,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 175 transitions, 1380 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:59:15,219 INFO L231 Difference]: Finished difference. Result has 131 places, 153 transitions, 1014 flow [2025-03-04 09:59:15,219 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=978, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1014, PETRI_PLACES=131, PETRI_TRANSITIONS=153} [2025-03-04 09:59:15,219 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 13 predicate places. [2025-03-04 09:59:15,220 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 153 transitions, 1014 flow [2025-03-04 09:59:15,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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) [2025-03-04 09:59:15,220 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:15,220 INFO L206 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] [2025-03-04 09:59:15,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-04 09:59:15,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:15,420 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:15,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:15,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2138109736, now seen corresponding path program 1 times [2025-03-04 09:59:15,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:15,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [475566305] [2025-03-04 09:59:15,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:15,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:15,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:15,423 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:15,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-04 09:59:15,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 09:59:15,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 09:59:15,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:15,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:15,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 09:59:15,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:15,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:15,556 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:15,556 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:15,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475566305] [2025-03-04 09:59:15,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475566305] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:15,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:15,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:59:15,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574074859] [2025-03-04 09:59:15,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:15,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:59:15,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:15,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:59:15,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:59:15,558 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2025-03-04 09:59:15,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 153 transitions, 1014 flow. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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) [2025-03-04 09:59:15,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:15,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2025-03-04 09:59:15,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:15,846 INFO L124 PetriNetUnfolderBase]: 455/835 cut-off events. [2025-03-04 09:59:15,846 INFO L125 PetriNetUnfolderBase]: For 1429/1429 co-relation queries the response was YES. [2025-03-04 09:59:15,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2942 conditions, 835 events. 455/835 cut-off events. For 1429/1429 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3415 event pairs, 63 based on Foata normal form. 64/881 useless extension candidates. Maximal degree in co-relation 2919. Up to 484 conditions per place. [2025-03-04 09:59:15,849 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 75 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2025-03-04 09:59:15,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 103 transitions, 627 flow [2025-03-04 09:59:15,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:59:15,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:59:15,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 242 transitions. [2025-03-04 09:59:15,851 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4879032258064516 [2025-03-04 09:59:15,851 INFO L175 Difference]: Start difference. First operand has 131 places, 153 transitions, 1014 flow. Second operand 4 states and 242 transitions. [2025-03-04 09:59:15,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 103 transitions, 627 flow [2025-03-04 09:59:15,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 103 transitions, 478 flow, removed 25 selfloop flow, removed 26 redundant places. [2025-03-04 09:59:15,856 INFO L231 Difference]: Finished difference. Result has 89 places, 77 transitions, 234 flow [2025-03-04 09:59:15,857 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=89, PETRI_TRANSITIONS=77} [2025-03-04 09:59:15,857 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -29 predicate places. [2025-03-04 09:59:15,857 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 77 transitions, 234 flow [2025-03-04 09:59:15,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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) [2025-03-04 09:59:15,857 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:15,857 INFO L206 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] [2025-03-04 09:59:15,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-04 09:59:16,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:16,058 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:16,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:16,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1826183711, now seen corresponding path program 1 times [2025-03-04 09:59:16,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:16,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [622077963] [2025-03-04 09:59:16,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:16,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:16,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:16,061 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:16,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-04 09:59:16,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-04 09:59:16,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 09:59:16,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:16,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:16,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 09:59:16,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:16,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:16,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:16,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:16,223 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:16,224 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:16,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2025-03-04 09:59:16,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:16,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:16,252 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:16,257 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 09:59:16,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 83 [2025-03-04 09:59:16,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:16,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:16,293 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:16,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622077963] [2025-03-04 09:59:16,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622077963] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:16,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:16,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:59:16,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820856788] [2025-03-04 09:59:16,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:16,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:59:16,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:16,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:59:16,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:59:16,368 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-03-04 09:59:16,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 77 transitions, 234 flow. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 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) [2025-03-04 09:59:16,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:16,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-03-04 09:59:16,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:16,827 INFO L124 PetriNetUnfolderBase]: 476/893 cut-off events. [2025-03-04 09:59:16,827 INFO L125 PetriNetUnfolderBase]: For 719/719 co-relation queries the response was YES. [2025-03-04 09:59:16,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2485 conditions, 893 events. 476/893 cut-off events. For 719/719 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3507 event pairs, 382 based on Foata normal form. 0/866 useless extension candidates. Maximal degree in co-relation 2475. Up to 779 conditions per place. [2025-03-04 09:59:16,829 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 71 selfloop transitions, 9 changer transitions 0/99 dead transitions. [2025-03-04 09:59:16,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 99 transitions, 465 flow [2025-03-04 09:59:16,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:59:16,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:59:16,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 231 transitions. [2025-03-04 09:59:16,830 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4657258064516129 [2025-03-04 09:59:16,830 INFO L175 Difference]: Start difference. First operand has 89 places, 77 transitions, 234 flow. Second operand 4 states and 231 transitions. [2025-03-04 09:59:16,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 99 transitions, 465 flow [2025-03-04 09:59:16,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 99 transitions, 453 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:59:16,832 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 298 flow [2025-03-04 09:59:16,832 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=298, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2025-03-04 09:59:16,832 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -26 predicate places. [2025-03-04 09:59:16,832 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 298 flow [2025-03-04 09:59:16,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 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) [2025-03-04 09:59:16,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:16,833 INFO L206 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] [2025-03-04 09:59:16,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-04 09:59:17,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:17,033 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:17,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:17,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1563466557, now seen corresponding path program 1 times [2025-03-04 09:59:17,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:17,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576397455] [2025-03-04 09:59:17,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:17,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:17,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:17,037 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:17,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-04 09:59:17,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 09:59:17,173 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 09:59:17,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:17,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:17,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 09:59:17,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:17,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:17,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:17,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 09:59:17,184 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:17,185 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 09:59:17,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2025-03-04 09:59:17,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:17,212 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:17,212 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:17,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576397455] [2025-03-04 09:59:17,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576397455] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:17,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:17,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 09:59:17,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084240469] [2025-03-04 09:59:17,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:17,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:59:17,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:17,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:59:17,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:59:17,291 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-03-04 09:59:17,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2025-03-04 09:59:17,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:17,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-03-04 09:59:17,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:17,552 INFO L124 PetriNetUnfolderBase]: 481/911 cut-off events. [2025-03-04 09:59:17,552 INFO L125 PetriNetUnfolderBase]: For 655/655 co-relation queries the response was YES. [2025-03-04 09:59:17,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2613 conditions, 911 events. 481/911 cut-off events. For 655/655 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3619 event pairs, 395 based on Foata normal form. 13/920 useless extension candidates. Maximal degree in co-relation 2601. Up to 801 conditions per place. [2025-03-04 09:59:17,555 INFO L140 encePairwiseOnDemand]: 118/124 looper letters, 69 selfloop transitions, 10 changer transitions 0/98 dead transitions. [2025-03-04 09:59:17,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 98 transitions, 517 flow [2025-03-04 09:59:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:59:17,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:59:17,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2025-03-04 09:59:17,556 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48655913978494625 [2025-03-04 09:59:17,556 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 298 flow. Second operand 3 states and 181 transitions. [2025-03-04 09:59:17,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 98 transitions, 517 flow [2025-03-04 09:59:17,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 98 transitions, 507 flow, removed 5 selfloop flow, removed 0 redundant places. [2025-03-04 09:59:17,558 INFO L231 Difference]: Finished difference. Result has 96 places, 90 transitions, 370 flow [2025-03-04 09:59:17,558 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=370, PETRI_PLACES=96, PETRI_TRANSITIONS=90} [2025-03-04 09:59:17,559 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -22 predicate places. [2025-03-04 09:59:17,559 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 90 transitions, 370 flow [2025-03-04 09:59:17,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2025-03-04 09:59:17,559 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:17,559 INFO L206 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] [2025-03-04 09:59:17,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-03-04 09:59:17,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:17,760 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:17,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:17,760 INFO L85 PathProgramCache]: Analyzing trace with hash -783297669, now seen corresponding path program 1 times [2025-03-04 09:59:17,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:17,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1821023524] [2025-03-04 09:59:17,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:59:17,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:17,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:17,762 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:17,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-04 09:59:17,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 09:59:17,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 09:59:17,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:59:17,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:17,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-04 09:59:17,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:17,967 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 11 treesize of output 9 [2025-03-04 09:59:17,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:17,995 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:17,995 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:17,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821023524] [2025-03-04 09:59:17,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821023524] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:17,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:17,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 09:59:17,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776186304] [2025-03-04 09:59:17,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:17,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 09:59:17,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:17,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 09:59:17,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-04 09:59:17,996 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:59:17,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 370 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-04 09:59:17,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:17,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:59:17,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:18,929 INFO L124 PetriNetUnfolderBase]: 1115/2088 cut-off events. [2025-03-04 09:59:18,930 INFO L125 PetriNetUnfolderBase]: For 2051/2051 co-relation queries the response was YES. [2025-03-04 09:59:18,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6149 conditions, 2088 events. 1115/2088 cut-off events. For 2051/2051 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 11384 event pairs, 122 based on Foata normal form. 16/2100 useless extension candidates. Maximal degree in co-relation 6135. Up to 559 conditions per place. [2025-03-04 09:59:18,937 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 171 selfloop transitions, 24 changer transitions 0/217 dead transitions. [2025-03-04 09:59:18,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 217 transitions, 1325 flow [2025-03-04 09:59:18,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 09:59:18,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-04 09:59:18,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 631 transitions. [2025-03-04 09:59:18,939 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4626099706744868 [2025-03-04 09:59:18,939 INFO L175 Difference]: Start difference. First operand has 96 places, 90 transitions, 370 flow. Second operand 11 states and 631 transitions. [2025-03-04 09:59:18,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 217 transitions, 1325 flow [2025-03-04 09:59:18,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 217 transitions, 1281 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-04 09:59:18,946 INFO L231 Difference]: Finished difference. Result has 111 places, 107 transitions, 537 flow [2025-03-04 09:59:18,946 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=537, PETRI_PLACES=111, PETRI_TRANSITIONS=107} [2025-03-04 09:59:18,947 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -7 predicate places. [2025-03-04 09:59:18,947 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 107 transitions, 537 flow [2025-03-04 09:59:18,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-04 09:59:18,947 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:18,947 INFO L206 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] [2025-03-04 09:59:18,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-03-04 09:59:19,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:19,148 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:19,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:19,149 INFO L85 PathProgramCache]: Analyzing trace with hash -468379989, now seen corresponding path program 2 times [2025-03-04 09:59:19,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:19,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [674088500] [2025-03-04 09:59:19,149 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:59:19,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:19,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:19,151 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:19,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-04 09:59:19,266 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 28 statements into 1 equivalence classes. [2025-03-04 09:59:19,302 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 09:59:19,302 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:59:19,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:19,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-04 09:59:19,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:19,363 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 11 treesize of output 9 [2025-03-04 09:59:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:19,391 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:19,391 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:19,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674088500] [2025-03-04 09:59:19,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674088500] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:19,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:19,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 09:59:19,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767256839] [2025-03-04 09:59:19,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:19,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 09:59:19,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:19,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 09:59:19,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-04 09:59:19,392 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:59:19,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 107 transitions, 537 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-04 09:59:19,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:19,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:59:19,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:20,298 INFO L124 PetriNetUnfolderBase]: 1315/2492 cut-off events. [2025-03-04 09:59:20,298 INFO L125 PetriNetUnfolderBase]: For 5720/5720 co-relation queries the response was YES. [2025-03-04 09:59:20,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8859 conditions, 2492 events. 1315/2492 cut-off events. For 5720/5720 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 14295 event pairs, 90 based on Foata normal form. 16/2504 useless extension candidates. Maximal degree in co-relation 8838. Up to 874 conditions per place. [2025-03-04 09:59:20,305 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 155 selfloop transitions, 39 changer transitions 0/216 dead transitions. [2025-03-04 09:59:20,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 216 transitions, 1564 flow [2025-03-04 09:59:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 09:59:20,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-04 09:59:20,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 651 transitions. [2025-03-04 09:59:20,307 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4375 [2025-03-04 09:59:20,307 INFO L175 Difference]: Start difference. First operand has 111 places, 107 transitions, 537 flow. Second operand 12 states and 651 transitions. [2025-03-04 09:59:20,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 216 transitions, 1564 flow [2025-03-04 09:59:20,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 216 transitions, 1527 flow, removed 2 selfloop flow, removed 4 redundant places. [2025-03-04 09:59:20,314 INFO L231 Difference]: Finished difference. Result has 122 places, 125 transitions, 778 flow [2025-03-04 09:59:20,314 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=778, PETRI_PLACES=122, PETRI_TRANSITIONS=125} [2025-03-04 09:59:20,314 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 4 predicate places. [2025-03-04 09:59:20,314 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 125 transitions, 778 flow [2025-03-04 09:59:20,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-04 09:59:20,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:20,315 INFO L206 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] [2025-03-04 09:59:20,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-04 09:59:20,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:20,515 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:20,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:20,516 INFO L85 PathProgramCache]: Analyzing trace with hash -870546645, now seen corresponding path program 3 times [2025-03-04 09:59:20,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:20,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1042142885] [2025-03-04 09:59:20,516 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 09:59:20,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:20,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:20,518 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:20,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-04 09:59:20,639 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 28 statements into 1 equivalence classes. [2025-03-04 09:59:20,675 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 09:59:20,675 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 09:59:20,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:20,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-04 09:59:20,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:20,722 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 11 treesize of output 9 [2025-03-04 09:59:20,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:20,767 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:20,767 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:20,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042142885] [2025-03-04 09:59:20,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042142885] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:20,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:20,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 09:59:20,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658914405] [2025-03-04 09:59:20,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:20,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 09:59:20,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:20,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 09:59:20,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-04 09:59:20,768 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:59:20,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 125 transitions, 778 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-04 09:59:20,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:20,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:59:20,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:21,619 INFO L124 PetriNetUnfolderBase]: 1211/2336 cut-off events. [2025-03-04 09:59:21,619 INFO L125 PetriNetUnfolderBase]: For 7454/7454 co-relation queries the response was YES. [2025-03-04 09:59:21,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9099 conditions, 2336 events. 1211/2336 cut-off events. For 7454/7454 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 13309 event pairs, 162 based on Foata normal form. 16/2348 useless extension candidates. Maximal degree in co-relation 9074. Up to 1462 conditions per place. [2025-03-04 09:59:21,630 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 124 selfloop transitions, 40 changer transitions 0/186 dead transitions. [2025-03-04 09:59:21,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 186 transitions, 1498 flow [2025-03-04 09:59:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:59:21,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:59:21,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 541 transitions. [2025-03-04 09:59:21,631 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43629032258064515 [2025-03-04 09:59:21,631 INFO L175 Difference]: Start difference. First operand has 122 places, 125 transitions, 778 flow. Second operand 10 states and 541 transitions. [2025-03-04 09:59:21,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 186 transitions, 1498 flow [2025-03-04 09:59:21,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 186 transitions, 1415 flow, removed 16 selfloop flow, removed 6 redundant places. [2025-03-04 09:59:21,643 INFO L231 Difference]: Finished difference. Result has 131 places, 142 transitions, 1055 flow [2025-03-04 09:59:21,643 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1055, PETRI_PLACES=131, PETRI_TRANSITIONS=142} [2025-03-04 09:59:21,643 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 13 predicate places. [2025-03-04 09:59:21,643 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 142 transitions, 1055 flow [2025-03-04 09:59:21,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-04 09:59:21,643 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:21,643 INFO L206 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] [2025-03-04 09:59:21,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-03-04 09:59:21,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:21,844 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:21,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:21,844 INFO L85 PathProgramCache]: Analyzing trace with hash 427612393, now seen corresponding path program 4 times [2025-03-04 09:59:21,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:21,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [856278315] [2025-03-04 09:59:21,845 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 09:59:21,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:21,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:21,847 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:21,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-04 09:59:21,966 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 28 statements into 2 equivalence classes. [2025-03-04 09:59:22,003 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 09:59:22,004 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 09:59:22,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:59:22,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-04 09:59:22,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 09:59:22,075 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 11 treesize of output 9 [2025-03-04 09:59:22,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:59:22,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 09:59:22,085 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 09:59:22,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856278315] [2025-03-04 09:59:22,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856278315] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:59:22,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:59:22,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 09:59:22,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445525689] [2025-03-04 09:59:22,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:59:22,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 09:59:22,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 09:59:22,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 09:59:22,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-04 09:59:22,086 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-03-04 09:59:22,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 142 transitions, 1055 flow. Second operand has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-04 09:59:22,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:59:22,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-03-04 09:59:22,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:59:23,075 INFO L124 PetriNetUnfolderBase]: 1430/2829 cut-off events. [2025-03-04 09:59:23,076 INFO L125 PetriNetUnfolderBase]: For 10372/10372 co-relation queries the response was YES. [2025-03-04 09:59:23,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11573 conditions, 2829 events. 1430/2829 cut-off events. For 10372/10372 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 17135 event pairs, 174 based on Foata normal form. 32/2853 useless extension candidates. Maximal degree in co-relation 11542. Up to 1382 conditions per place. [2025-03-04 09:59:23,089 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 199 selfloop transitions, 50 changer transitions 0/271 dead transitions. [2025-03-04 09:59:23,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 271 transitions, 2349 flow [2025-03-04 09:59:23,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 09:59:23,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-04 09:59:23,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 680 transitions. [2025-03-04 09:59:23,090 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45698924731182794 [2025-03-04 09:59:23,090 INFO L175 Difference]: Start difference. First operand has 131 places, 142 transitions, 1055 flow. Second operand 12 states and 680 transitions. [2025-03-04 09:59:23,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 271 transitions, 2349 flow [2025-03-04 09:59:23,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 271 transitions, 2231 flow, removed 54 selfloop flow, removed 2 redundant places. [2025-03-04 09:59:23,112 INFO L231 Difference]: Finished difference. Result has 146 places, 156 transitions, 1325 flow [2025-03-04 09:59:23,112 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1325, PETRI_PLACES=146, PETRI_TRANSITIONS=156} [2025-03-04 09:59:23,113 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 28 predicate places. [2025-03-04 09:59:23,113 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 156 transitions, 1325 flow [2025-03-04 09:59:23,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.125) internal successors, (369), 8 states have internal predecessors, (369), 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) [2025-03-04 09:59:23,113 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:59:23,113 INFO L206 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] [2025-03-04 09:59:23,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-04 09:59:23,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:23,314 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-03-04 09:59:23,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:59:23,314 INFO L85 PathProgramCache]: Analyzing trace with hash -97398903, now seen corresponding path program 5 times [2025-03-04 09:59:23,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 09:59:23,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181323586] [2025-03-04 09:59:23,315 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 09:59:23,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 09:59:23,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:59:23,317 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 09:59:23,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-04 09:59:23,442 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 28 statements into 1 equivalence classes. [2025-03-04 09:59:39,473 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 09:59:39,473 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:59:39,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 09:59:39,473 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 09:59:39,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 10:00:10,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 10:00:10,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:00:10,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 10:00:10,271 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-04 10:00:10,272 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 10:00:10,272 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK (54 of 55 remaining) [2025-03-04 10:00:10,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 55 remaining) [2025-03-04 10:00:10,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 55 remaining) [2025-03-04 10:00:10,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (51 of 55 remaining) [2025-03-04 10:00:10,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 55 remaining) [2025-03-04 10:00:10,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 55 remaining) [2025-03-04 10:00:10,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 55 remaining) [2025-03-04 10:00:10,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 55 remaining) [2025-03-04 10:00:10,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK (32 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (29 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (24 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK (21 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK (20 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 55 remaining) [2025-03-04 10:00:10,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 55 remaining) [2025-03-04 10:00:10,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 55 remaining) [2025-03-04 10:00:10,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 55 remaining) [2025-03-04 10:00:10,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 55 remaining) [2025-03-04 10:00:10,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 55 remaining) [2025-03-04 10:00:10,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 55 remaining) [2025-03-04 10:00:10,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 55 remaining) [2025-03-04 10:00:10,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 55 remaining) [2025-03-04 10:00:10,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 55 remaining) [2025-03-04 10:00:10,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 55 remaining) [2025-03-04 10:00:10,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 55 remaining) [2025-03-04 10:00:10,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-03-04 10:00:10,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:00:10,477 INFO L422 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:00:10,514 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 10:00:10,514 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 10:00:10,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 10:00:10 BasicIcfg [2025-03-04 10:00:10,517 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 10:00:10,518 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 10:00:10,518 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 10:00:10,518 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 10:00:10,518 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:50" (3/4) ... [2025-03-04 10:00:10,520 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 10:00:10,520 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 10:00:10,521 INFO L158 Benchmark]: Toolchain (without parser) took 81312.19ms. Allocated memory was 83.9MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 55.9MB in the beginning and 390.7MB in the end (delta: -334.7MB). Peak memory consumption was 841.7MB. Max. memory is 16.1GB. [2025-03-04 10:00:10,521 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 61.0MB in the beginning and 61.0MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 10:00:10,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.15ms. Allocated memory is still 83.9MB. Free memory was 55.6MB in the beginning and 42.9MB in the end (delta: 12.7MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2025-03-04 10:00:10,521 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.42ms. Allocated memory is still 83.9MB. Free memory was 42.9MB in the beginning and 40.2MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 10:00:10,521 INFO L158 Benchmark]: Boogie Preprocessor took 74.49ms. Allocated memory is still 83.9MB. Free memory was 40.2MB in the beginning and 36.1MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 10:00:10,522 INFO L158 Benchmark]: IcfgBuilder took 791.19ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 35.7MB in the beginning and 65.5MB in the end (delta: -29.8MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2025-03-04 10:00:10,522 INFO L158 Benchmark]: TraceAbstraction took 79913.66ms. Allocated memory was 109.1MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 64.7MB in the beginning and 390.7MB in the end (delta: -326.0MB). Peak memory consumption was 824.0MB. Max. memory is 16.1GB. [2025-03-04 10:00:10,522 INFO L158 Benchmark]: Witness Printer took 2.40ms. Allocated memory is still 1.3GB. Free memory was 390.7MB in the beginning and 390.7MB in the end (delta: 80.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 10:00:10,523 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 61.0MB in the beginning and 61.0MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.15ms. Allocated memory is still 83.9MB. Free memory was 55.6MB in the beginning and 42.9MB in the end (delta: 12.7MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.42ms. Allocated memory is still 83.9MB. Free memory was 42.9MB in the beginning and 40.2MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.49ms. Allocated memory is still 83.9MB. Free memory was 40.2MB in the beginning and 36.1MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 791.19ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 35.7MB in the beginning and 65.5MB in the end (delta: -29.8MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. * TraceAbstraction took 79913.66ms. Allocated memory was 109.1MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 64.7MB in the beginning and 390.7MB in the end (delta: -326.0MB). Peak memory consumption was 824.0MB. Max. memory is 16.1GB. * Witness Printer took 2.40ms. Allocated memory is still 1.3GB. Free memory was 390.7MB in the beginning and 390.7MB in the end (delta: 80.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3883. Possible FailurePath: [L3888] 0 pthread_t t1,t2; [L3962] CALL, EXPR 0 my_drv_init() [L3956] 0 return 0; [L3962] RET, EXPR 0 my_drv_init() [L3962] 0 int ret = my_drv_init(); [L3963] COND TRUE 0 ret==0 [L3964] 0 int probe_ret; [L3965] 0 struct my_data data; [L3966] CALL, EXPR 0 my_drv_probe(&data) [L3919] 0 struct device *d = &data->dev; [L3923] 0 data->shared.a = 0 VAL [t1=0, t2=0] [L3924] 0 data->shared.b = 0 [L3925] 0 int res = __VERIFIER_nondet_int(); [L3926] COND FALSE 0 !(\read(res)) [L3929] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={2097152:24}, \old(data)={2097152:0}, d={2097152:24}, data={2097152:0}, res=0, t1=8388607, t2=0] [L3902] 1 struct device *dev = (struct device*)arg; [L3903] 1 struct my_data *data; [L3904] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3907] 1 data->shared.a = 1 VAL [\old(arg)={2097152:24}, arg={2097152:24}, data={2097152:0}, dev={2097152:24}, t1=8388607, t2=8388608] [L3910] EXPR 1 data->shared.b [L3910] 1 int lb = data->shared.b; [L3913] 1 data->shared.b = lb + 1 VAL [\old(arg)={2097152:24}, arg={2097152:24}, data={2097152:0}, dev={2097152:24}, lb=0, t1=8388607, t2=8388608] [L3916] 1 return 0; [L3930] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={2097152:24}, \old(data)={2097152:0}, \result={0:0}, arg={2097152:24}, d={2097152:24}, data={2097152:0}, data={2097152:0}, dev={2097152:24}, lb=0, res=0, t1=8388607, t2=8388608] [L3931] 0 return 0; VAL [\old(arg)={2097152:24}, \old(data)={2097152:0}, \result=0, \result={0:0}, arg={2097152:24}, d={2097152:24}, data={2097152:0}, data={2097152:0}, dev={2097152:24}, lb=0, res=0, t1=8388607, t2=8388608] [L3902] 2 struct device *dev = (struct device*)arg; [L3903] 2 struct my_data *data; [L3904] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 2 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3966] RET, EXPR 0 my_drv_probe(&data) [L3966] 0 probe_ret = my_drv_probe(&data) [L3967] COND TRUE 0 probe_ret==0 [L3968] CALL 0 my_drv_disconnect(&data) [L3937] 0 void *status; VAL [\old(arg)={2097152:24}, \old(data)={2097152:0}, \result={0:0}, arg={2097152:24}, data={2097152:0}, data={2097152:0}, dev={2097152:24}, lb=0, status={524288:0}, t1=8388607, t2=8388608] [L3938] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\old(arg)={2097152:24}, \old(data)={2097152:0}, \result={0:0}, arg={2097152:24}, data={2097152:0}, data={2097152:0}, dev={2097152:24}, lb=0, status={524288:0}, t1=8388607, t2=8388608] [L3941] 0 data->shared.a = 3 VAL [\old(arg)={2097152:24}, \result={0:0}, arg={2097152:24}, data={2097152:0}, dev={2097152:24}, lb=0, t1=8388607, t2=8388608] [L3944] 0 data->shared.b = 3 VAL [\old(arg)={2097152:24}, \result={0:0}, arg={2097152:24}, data={2097152:0}, dev={2097152:24}, lb=0, t1=8388607, t2=8388608] [L3907] 2 data->shared.a = 1 VAL [\old(arg)={2097152:24}, \result={0:0}, arg={2097152:24}, data={2097152:0}, dev={2097152:24}, lb=0, t1=8388607, t2=8388608] [L3947] EXPR 0 data->shared.a [L3947] CALL 0 ldv_assert(data->shared.a==3) [L3887] COND TRUE 0 !expression [L3887] CALL 0 reach_error() [L3883] 0 (0) ? (void) (0) : __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_5-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) [L3883] 0 __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_5-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={2097152:24}, \result={0:0}, arg={2097152:24}, data={2097152:0}, dev={2097152:24}, lb=0, t1=8388607, t2=8388608] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3961]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3929]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 3930]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 131 locations, 55 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 79.8s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 23.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3367 SdHoareTripleChecker+Valid, 12.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2804 mSDsluCounter, 200 SdHoareTripleChecker+Invalid, 10.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 151 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7578 IncrementalHoareTripleChecker+Invalid, 7845 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 116 mSolverCounterUnsat, 141 mSDtfsCounter, 7578 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 429 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1325occurred in iteration=24, InterpolantAutomatonStates: 145, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 16.6s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 431 NumberOfCodeBlocks, 431 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 379 ConstructedInterpolants, 2 QuantifiedInterpolants, 2451 SizeOfPredicates, 172 NumberOfNonLiveVariables, 3747 ConjunctsInSsa, 277 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-04 10:00:10,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample