./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya --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 0.2.4-dev-0e0057c [2023-11-29 07:06:19,134 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:06:19,202 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-29 07:06:19,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:06:19,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:06:19,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:06:19,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:06:19,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:06:19,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:06:19,235 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:06:19,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:06:19,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:06:19,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:06:19,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:06:19,238 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:06:19,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:06:19,239 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:06:19,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:06:19,240 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:06:19,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:06:19,241 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 07:06:19,243 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 07:06:19,243 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 07:06:19,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:06:19,244 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 07:06:19,244 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 07:06:19,245 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:06:19,245 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:06:19,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:06:19,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:06:19,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:06:19,247 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:06:19,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:06:19,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:06:19,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:06:19,248 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:06:19,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:06:19,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:06:19,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:06:19,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:06:19,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:06:19,249 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e [2023-11-29 07:06:19,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:06:19,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:06:19,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:06:19,500 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:06:19,500 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:06:19,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-29 07:06:22,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:06:22,541 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:06:22,542 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-29 07:06:22,573 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/data/1ecc104b5/cc28ae26467748b5b899203d8b02c78e/FLAGbee17ab8b [2023-11-29 07:06:22,587 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/data/1ecc104b5/cc28ae26467748b5b899203d8b02c78e [2023-11-29 07:06:22,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:06:22,591 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:06:22,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:06:22,593 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:06:22,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:06:22,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:06:22" (1/1) ... [2023-11-29 07:06:22,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a704373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:22, skipping insertion in model container [2023-11-29 07:06:22,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:06:22" (1/1) ... [2023-11-29 07:06:22,670 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:06:23,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:06:23,084 ERROR L324 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) [2023-11-29 07:06:23,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@287052a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:23, skipping insertion in model container [2023-11-29 07:06:23,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:06:23,085 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 07:06:23,086 INFO L158 Benchmark]: Toolchain (without parser) took 494.96ms. Allocated memory is still 140.5MB. Free memory was 100.7MB in the beginning and 79.9MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 07:06:23,087 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 07:06:23,087 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.54ms. Allocated memory is still 140.5MB. Free memory was 100.3MB in the beginning and 79.9MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 07:06:23,089 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.54ms. Allocated memory is still 140.5MB. Free memory was 100.3MB in the beginning and 79.9MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3904]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya --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 0.2.4-dev-0e0057c [2023-11-29 07:06:24,848 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:06:24,926 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-29 07:06:24,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:06:24,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:06:24,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:06:24,961 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:06:24,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:06:24,962 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:06:24,963 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:06:24,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:06:24,964 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:06:24,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:06:24,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:06:24,966 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:06:24,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:06:24,967 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:06:24,967 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:06:24,968 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:06:24,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:06:24,969 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 07:06:24,970 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 07:06:24,970 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 07:06:24,970 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:06:24,971 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 07:06:24,971 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 07:06:24,972 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 07:06:24,972 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 07:06:24,973 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:06:24,973 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:06:24,973 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:06:24,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:06:24,974 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:06:24,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:06:24,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:06:24,975 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:06:24,975 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:06:24,975 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 07:06:24,976 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 07:06:24,976 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:06:24,976 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:06:24,976 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:06:24,977 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:06:24,977 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 07:06:24,977 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e [2023-11-29 07:06:25,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:06:25,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:06:25,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:06:25,285 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:06:25,285 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:06:25,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-29 07:06:28,065 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:06:28,366 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:06:28,367 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-29 07:06:28,406 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/data/b274c5f75/ee2c3dd5ba6d4ee1abf68a89b13e93e9/FLAG28dea7441 [2023-11-29 07:06:28,423 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/data/b274c5f75/ee2c3dd5ba6d4ee1abf68a89b13e93e9 [2023-11-29 07:06:28,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:06:28,427 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:06:28,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:06:28,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:06:28,434 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:06:28,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:06:28" (1/1) ... [2023-11-29 07:06:28,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d746e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:28, skipping insertion in model container [2023-11-29 07:06:28,436 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:06:28" (1/1) ... [2023-11-29 07:06:28,534 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:06:28,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:06:28,971 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 07:06:28,999 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:06:29,044 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:06:29,049 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:06:29,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:06:29,146 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 07:06:29,147 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 07:06:29,152 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:06:29,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:29 WrapperNode [2023-11-29 07:06:29,153 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:06:29,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:06:29,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:06:29,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:06:29,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:29" (1/1) ... [2023-11-29 07:06:29,187 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:29" (1/1) ... [2023-11-29 07:06:29,216 INFO L138 Inliner]: procedures = 252, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 160 [2023-11-29 07:06:29,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:06:29,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:06:29,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:06:29,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:06:29,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:29" (1/1) ... [2023-11-29 07:06:29,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:29" (1/1) ... [2023-11-29 07:06:29,235 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:29" (1/1) ... [2023-11-29 07:06:29,267 INFO L175 MemorySlicer]: Split 25 memory accesses to 5 slices as follows [2, 3, 3, 2, 15]. 60 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 1, 1, 0, 0]. The 12 writes are split as follows [0, 1, 1, 2, 8]. [2023-11-29 07:06:29,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:29" (1/1) ... [2023-11-29 07:06:29,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:29" (1/1) ... [2023-11-29 07:06:29,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:29" (1/1) ... [2023-11-29 07:06:29,293 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:29" (1/1) ... [2023-11-29 07:06:29,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:29" (1/1) ... [2023-11-29 07:06:29,305 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:29" (1/1) ... [2023-11-29 07:06:29,314 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:06:29,315 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:06:29,315 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:06:29,315 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:06:29,316 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:29" (1/1) ... [2023-11-29 07:06:29,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:06:29,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:29,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:06:29,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:06:29,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 07:06:29,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 07:06:29,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 07:06:29,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 07:06:29,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-29 07:06:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-29 07:06:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-29 07:06:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 07:06:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 07:06:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 07:06:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 07:06:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 07:06:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 07:06:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 07:06:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-29 07:06:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 07:06:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 07:06:29,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 07:06:29,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 07:06:29,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-29 07:06:29,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-11-29 07:06:29,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-11-29 07:06:29,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-11-29 07:06:29,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-11-29 07:06:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-11-29 07:06:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 07:06:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 07:06:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 07:06:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:06:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 07:06:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 07:06:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 07:06:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 07:06:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 07:06:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:06:29,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:06:29,396 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 07:06:29,684 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:06:29,687 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:06:30,300 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:06:30,476 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:06:30,476 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 07:06:30,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:06:30 BoogieIcfgContainer [2023-11-29 07:06:30,477 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:06:30,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:06:30,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:06:30,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:06:30,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:06:28" (1/3) ... [2023-11-29 07:06:30,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474daf78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:06:30, skipping insertion in model container [2023-11-29 07:06:30,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:06:29" (2/3) ... [2023-11-29 07:06:30,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474daf78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:06:30, skipping insertion in model container [2023-11-29 07:06:30,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:06:30" (3/3) ... [2023-11-29 07:06:30,484 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2023-11-29 07:06:30,506 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:06:30,507 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2023-11-29 07:06:30,507 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 07:06:30,569 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 07:06:30,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 136 transitions, 286 flow [2023-11-29 07:06:30,659 INFO L124 PetriNetUnfolderBase]: 14/172 cut-off events. [2023-11-29 07:06:30,659 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 07:06:30,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 172 events. 14/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 559 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 89. Up to 4 conditions per place. [2023-11-29 07:06:30,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 136 transitions, 286 flow [2023-11-29 07:06:30,669 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 134 transitions, 280 flow [2023-11-29 07:06:30,686 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:06:30,695 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@568f1bf2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:06:30,696 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2023-11-29 07:06:30,700 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 07:06:30,700 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-29 07:06:30,700 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 07:06:30,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:06:30,701 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-29 07:06:30,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:06:30,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:30,707 INFO L85 PathProgramCache]: Analyzing trace with hash 584370, now seen corresponding path program 1 times [2023-11-29 07:06:30,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:30,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056048825] [2023-11-29 07:06:30,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:30,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:30,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:30,738 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:30,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 07:06:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:30,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:06:30,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:31,002 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 [2023-11-29 07:06:31,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:06:31,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:31,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:31,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056048825] [2023-11-29 07:06:31,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056048825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:31,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:31,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:06:31,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499542763] [2023-11-29 07:06:31,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:31,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:06:31,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:31,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:06:31,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:06:31,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 136 [2023-11-29 07:06:31,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 134 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2023-11-29 07:06:31,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:06:31,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 136 [2023-11-29 07:06:31,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:06:33,248 INFO L124 PetriNetUnfolderBase]: 4409/11484 cut-off events. [2023-11-29 07:06:33,248 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-11-29 07:06:33,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18568 conditions, 11484 events. 4409/11484 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 123343 event pairs, 559 based on Foata normal form. 792/8377 useless extension candidates. Maximal degree in co-relation 17523. Up to 6052 conditions per place. [2023-11-29 07:06:33,345 INFO L140 encePairwiseOnDemand]: 124/136 looper letters, 94 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2023-11-29 07:06:33,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 146 transitions, 496 flow [2023-11-29 07:06:33,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:06:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 07:06:33,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2023-11-29 07:06:33,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6421568627450981 [2023-11-29 07:06:33,361 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2023-11-29 07:06:33,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2023-11-29 07:06:33,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:06:33,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2023-11-29 07:06:33,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2023-11-29 07:06:33,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:06:33,373 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:06:33,375 INFO L175 Difference]: Start difference. First operand has 130 places, 134 transitions, 280 flow. Second operand 3 states and 262 transitions. [2023-11-29 07:06:33,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 146 transitions, 496 flow [2023-11-29 07:06:33,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 146 transitions, 488 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 07:06:33,387 INFO L231 Difference]: Finished difference. Result has 122 places, 120 transitions, 248 flow [2023-11-29 07:06:33,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=122, PETRI_TRANSITIONS=120} [2023-11-29 07:06:33,393 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -8 predicate places. [2023-11-29 07:06:33,393 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 120 transitions, 248 flow [2023-11-29 07:06:33,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2023-11-29 07:06:33,394 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:06:33,394 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-29 07:06:33,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 07:06:33,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:33,600 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:06:33,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:33,601 INFO L85 PathProgramCache]: Analyzing trace with hash 584371, now seen corresponding path program 1 times [2023-11-29 07:06:33,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:33,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710034551] [2023-11-29 07:06:33,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:33,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:33,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:33,604 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:33,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 07:06:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:33,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:06:33,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:33,757 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 [2023-11-29 07:06:33,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:06:33,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:33,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:33,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710034551] [2023-11-29 07:06:33,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710034551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:33,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:33,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:06:33,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847221522] [2023-11-29 07:06:33,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:33,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:06:33,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:33,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:06:33,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:06:33,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 136 [2023-11-29 07:06:33,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 120 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2023-11-29 07:06:33,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:06:33,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 136 [2023-11-29 07:06:33,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:06:35,636 INFO L124 PetriNetUnfolderBase]: 4409/11482 cut-off events. [2023-11-29 07:06:35,637 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2023-11-29 07:06:35,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18732 conditions, 11482 events. 4409/11482 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 123357 event pairs, 559 based on Foata normal form. 1/7584 useless extension candidates. Maximal degree in co-relation 2010. Up to 6052 conditions per place. [2023-11-29 07:06:35,704 INFO L140 encePairwiseOnDemand]: 132/136 looper letters, 93 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2023-11-29 07:06:35,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 144 transitions, 486 flow [2023-11-29 07:06:35,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:06:35,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 07:06:35,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-11-29 07:06:35,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6274509803921569 [2023-11-29 07:06:35,708 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-11-29 07:06:35,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-11-29 07:06:35,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:06:35,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-11-29 07:06:35,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-11-29 07:06:35,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:06:35,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:06:35,714 INFO L175 Difference]: Start difference. First operand has 122 places, 120 transitions, 248 flow. Second operand 3 states and 256 transitions. [2023-11-29 07:06:35,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 144 transitions, 486 flow [2023-11-29 07:06:35,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 144 transitions, 482 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 07:06:35,719 INFO L231 Difference]: Finished difference. Result has 120 places, 118 transitions, 244 flow [2023-11-29 07:06:35,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=120, PETRI_TRANSITIONS=118} [2023-11-29 07:06:35,720 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -10 predicate places. [2023-11-29 07:06:35,721 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 118 transitions, 244 flow [2023-11-29 07:06:35,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2023-11-29 07:06:35,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:06:35,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-29 07:06:35,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 07:06:35,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:35,922 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:06:35,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:35,923 INFO L85 PathProgramCache]: Analyzing trace with hash 18113730, now seen corresponding path program 1 times [2023-11-29 07:06:35,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:35,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356411360] [2023-11-29 07:06:35,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:35,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:35,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:35,926 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:35,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 07:06:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:36,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:06:36,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:36,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:06:36,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:36,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:36,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356411360] [2023-11-29 07:06:36,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356411360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:36,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:36,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:06:36,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266638169] [2023-11-29 07:06:36,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:36,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:06:36,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:36,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:06:36,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:06:36,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 136 [2023-11-29 07:06:36,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 118 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-11-29 07:06:36,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:06:36,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 136 [2023-11-29 07:06:36,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:06:37,142 INFO L124 PetriNetUnfolderBase]: 4408/7709 cut-off events. [2023-11-29 07:06:37,143 INFO L125 PetriNetUnfolderBase]: For 199/199 co-relation queries the response was YES. [2023-11-29 07:06:37,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14959 conditions, 7709 events. 4408/7709 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 55332 event pairs, 4043 based on Foata normal form. 1/5250 useless extension candidates. Maximal degree in co-relation 8075. Up to 6473 conditions per place. [2023-11-29 07:06:37,172 INFO L140 encePairwiseOnDemand]: 133/136 looper letters, 93 selfloop transitions, 2 changer transitions 0/143 dead transitions. [2023-11-29 07:06:37,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 143 transitions, 484 flow [2023-11-29 07:06:37,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:06:37,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 07:06:37,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-11-29 07:06:37,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6323529411764706 [2023-11-29 07:06:37,175 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-11-29 07:06:37,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-11-29 07:06:37,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:06:37,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-11-29 07:06:37,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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) [2023-11-29 07:06:37,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:06:37,179 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:06:37,179 INFO L175 Difference]: Start difference. First operand has 120 places, 118 transitions, 244 flow. Second operand 3 states and 258 transitions. [2023-11-29 07:06:37,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 143 transitions, 484 flow [2023-11-29 07:06:37,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 143 transitions, 480 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 07:06:37,184 INFO L231 Difference]: Finished difference. Result has 120 places, 117 transitions, 242 flow [2023-11-29 07:06:37,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=120, PETRI_TRANSITIONS=117} [2023-11-29 07:06:37,185 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -10 predicate places. [2023-11-29 07:06:37,186 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 117 transitions, 242 flow [2023-11-29 07:06:37,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-11-29 07:06:37,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:06:37,186 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 07:06:37,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 07:06:37,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:37,387 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:06:37,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:37,388 INFO L85 PathProgramCache]: Analyzing trace with hash 229699252, now seen corresponding path program 1 times [2023-11-29 07:06:37,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:37,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899869062] [2023-11-29 07:06:37,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:37,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:37,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:37,390 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:37,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 07:06:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:37,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:06:37,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:37,645 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-11-29 07:06:37,645 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 [2023-11-29 07:06:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:06:37,678 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:37,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:37,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899869062] [2023-11-29 07:06:37,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899869062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:37,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:37,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 07:06:37,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793390706] [2023-11-29 07:06:37,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:37,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:06:37,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:37,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:06:37,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:06:37,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 136 [2023-11-29 07:06:37,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 117 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-11-29 07:06:37,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:06:37,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 136 [2023-11-29 07:06:37,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:06:38,748 INFO L124 PetriNetUnfolderBase]: 4408/7972 cut-off events. [2023-11-29 07:06:38,748 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2023-11-29 07:06:38,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15229 conditions, 7972 events. 4408/7972 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 58550 event pairs, 3679 based on Foata normal form. 198/5754 useless extension candidates. Maximal degree in co-relation 13904. Up to 5905 conditions per place. [2023-11-29 07:06:38,804 INFO L140 encePairwiseOnDemand]: 131/136 looper letters, 99 selfloop transitions, 3 changer transitions 0/148 dead transitions. [2023-11-29 07:06:38,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 148 transitions, 508 flow [2023-11-29 07:06:38,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:06:38,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 07:06:38,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2023-11-29 07:06:38,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6446078431372549 [2023-11-29 07:06:38,807 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 263 transitions. [2023-11-29 07:06:38,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 263 transitions. [2023-11-29 07:06:38,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:06:38,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 263 transitions. [2023-11-29 07:06:38,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2023-11-29 07:06:38,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:06:38,810 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:06:38,810 INFO L175 Difference]: Start difference. First operand has 120 places, 117 transitions, 242 flow. Second operand 3 states and 263 transitions. [2023-11-29 07:06:38,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 148 transitions, 508 flow [2023-11-29 07:06:38,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 148 transitions, 504 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 07:06:38,831 INFO L231 Difference]: Finished difference. Result has 119 places, 116 transitions, 247 flow [2023-11-29 07:06:38,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=247, PETRI_PLACES=119, PETRI_TRANSITIONS=116} [2023-11-29 07:06:38,832 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -11 predicate places. [2023-11-29 07:06:38,833 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 116 transitions, 247 flow [2023-11-29 07:06:38,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2023-11-29 07:06:38,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:06:38,833 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 07:06:38,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 07:06:39,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:39,039 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:06:39,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:39,039 INFO L85 PathProgramCache]: Analyzing trace with hash 229699253, now seen corresponding path program 1 times [2023-11-29 07:06:39,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:39,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962796030] [2023-11-29 07:06:39,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:39,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:39,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:39,041 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:39,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 07:06:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:39,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:06:39,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:39,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:06:39,289 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 [2023-11-29 07:06:39,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:06:39,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:39,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:39,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962796030] [2023-11-29 07:06:39,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962796030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:39,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:39,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:06:39,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523128329] [2023-11-29 07:06:39,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:39,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:06:39,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:39,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:06:39,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:06:39,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 136 [2023-11-29 07:06:39,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 116 transitions, 247 flow. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:06:39,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:06:39,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 136 [2023-11-29 07:06:39,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:06:40,771 INFO L124 PetriNetUnfolderBase]: 4772/8527 cut-off events. [2023-11-29 07:06:40,771 INFO L125 PetriNetUnfolderBase]: For 207/207 co-relation queries the response was YES. [2023-11-29 07:06:40,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16547 conditions, 8527 events. 4772/8527 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 62445 event pairs, 4043 based on Foata normal form. 0/5948 useless extension candidates. Maximal degree in co-relation 13451. Up to 6467 conditions per place. [2023-11-29 07:06:40,824 INFO L140 encePairwiseOnDemand]: 131/136 looper letters, 101 selfloop transitions, 3 changer transitions 0/146 dead transitions. [2023-11-29 07:06:40,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 146 transitions, 515 flow [2023-11-29 07:06:40,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:06:40,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 07:06:40,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 302 transitions. [2023-11-29 07:06:40,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5551470588235294 [2023-11-29 07:06:40,827 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 302 transitions. [2023-11-29 07:06:40,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 302 transitions. [2023-11-29 07:06:40,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:06:40,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 302 transitions. [2023-11-29 07:06:40,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 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) [2023-11-29 07:06:40,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2023-11-29 07:06:40,832 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2023-11-29 07:06:40,832 INFO L175 Difference]: Start difference. First operand has 119 places, 116 transitions, 247 flow. Second operand 4 states and 302 transitions. [2023-11-29 07:06:40,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 146 transitions, 515 flow [2023-11-29 07:06:40,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 146 transitions, 512 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 07:06:40,838 INFO L231 Difference]: Finished difference. Result has 119 places, 114 transitions, 246 flow [2023-11-29 07:06:40,839 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=246, PETRI_PLACES=119, PETRI_TRANSITIONS=114} [2023-11-29 07:06:40,840 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -11 predicate places. [2023-11-29 07:06:40,840 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 114 transitions, 246 flow [2023-11-29 07:06:40,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:06:40,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:06:40,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:40,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 07:06:41,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:41,041 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:06:41,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:41,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1088453364, now seen corresponding path program 1 times [2023-11-29 07:06:41,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:41,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036849809] [2023-11-29 07:06:41,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:41,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:41,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:41,044 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:41,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 07:06:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:41,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:06:41,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:41,185 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 [2023-11-29 07:06:41,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:06:41,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:41,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:41,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036849809] [2023-11-29 07:06:41,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036849809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:41,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:41,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:06:41,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598347327] [2023-11-29 07:06:41,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:41,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:06:41,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:41,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:06:41,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:06:41,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 136 [2023-11-29 07:06:41,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 114 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:06:41,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:06:41,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 136 [2023-11-29 07:06:41,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:06:42,379 INFO L124 PetriNetUnfolderBase]: 5136/9057 cut-off events. [2023-11-29 07:06:42,379 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2023-11-29 07:06:42,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17641 conditions, 9057 events. 5136/9057 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 65369 event pairs, 4407 based on Foata normal form. 0/6365 useless extension candidates. Maximal degree in co-relation 14546. Up to 7040 conditions per place. [2023-11-29 07:06:42,414 INFO L140 encePairwiseOnDemand]: 127/136 looper letters, 94 selfloop transitions, 5 changer transitions 0/135 dead transitions. [2023-11-29 07:06:42,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 135 transitions, 486 flow [2023-11-29 07:06:42,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:06:42,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 07:06:42,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2023-11-29 07:06:42,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5980392156862745 [2023-11-29 07:06:42,417 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2023-11-29 07:06:42,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2023-11-29 07:06:42,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:06:42,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2023-11-29 07:06:42,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:06:42,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:06:42,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:06:42,420 INFO L175 Difference]: Start difference. First operand has 119 places, 114 transitions, 246 flow. Second operand 3 states and 244 transitions. [2023-11-29 07:06:42,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 135 transitions, 486 flow [2023-11-29 07:06:42,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 135 transitions, 482 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 07:06:42,431 INFO L231 Difference]: Finished difference. Result has 114 places, 109 transitions, 242 flow [2023-11-29 07:06:42,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=114, PETRI_TRANSITIONS=109} [2023-11-29 07:06:42,432 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -16 predicate places. [2023-11-29 07:06:42,432 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 109 transitions, 242 flow [2023-11-29 07:06:42,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:06:42,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:06:42,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:42,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 07:06:42,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:42,633 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:06:42,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:42,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1088453365, now seen corresponding path program 1 times [2023-11-29 07:06:42,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:42,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896867410] [2023-11-29 07:06:42,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:42,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:42,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:42,635 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:42,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 07:06:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:42,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:06:42,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:42,786 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 [2023-11-29 07:06:42,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:06:42,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:42,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:42,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896867410] [2023-11-29 07:06:42,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896867410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:42,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:42,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:06:42,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669624812] [2023-11-29 07:06:42,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:42,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:06:42,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:42,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:06:42,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:06:42,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 136 [2023-11-29 07:06:42,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 109 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2023-11-29 07:06:42,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:06:42,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 136 [2023-11-29 07:06:42,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:06:43,898 INFO L124 PetriNetUnfolderBase]: 4408/8084 cut-off events. [2023-11-29 07:06:43,898 INFO L125 PetriNetUnfolderBase]: For 610/610 co-relation queries the response was YES. [2023-11-29 07:06:43,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15749 conditions, 8084 events. 4408/8084 cut-off events. For 610/610 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 61284 event pairs, 3107 based on Foata normal form. 394/6120 useless extension candidates. Maximal degree in co-relation 12452. Up to 4910 conditions per place. [2023-11-29 07:06:43,925 INFO L140 encePairwiseOnDemand]: 129/136 looper letters, 105 selfloop transitions, 3 changer transitions 0/141 dead transitions. [2023-11-29 07:06:43,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 141 transitions, 522 flow [2023-11-29 07:06:43,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:06:43,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 07:06:43,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2023-11-29 07:06:43,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6348039215686274 [2023-11-29 07:06:43,927 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2023-11-29 07:06:43,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2023-11-29 07:06:43,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:06:43,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2023-11-29 07:06:43,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2023-11-29 07:06:43,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:06:43,931 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:06:43,931 INFO L175 Difference]: Start difference. First operand has 114 places, 109 transitions, 242 flow. Second operand 3 states and 259 transitions. [2023-11-29 07:06:43,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 141 transitions, 522 flow [2023-11-29 07:06:43,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 141 transitions, 512 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 07:06:43,947 INFO L231 Difference]: Finished difference. Result has 115 places, 109 transitions, 249 flow [2023-11-29 07:06:43,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=249, PETRI_PLACES=115, PETRI_TRANSITIONS=109} [2023-11-29 07:06:43,948 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -15 predicate places. [2023-11-29 07:06:43,948 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 109 transitions, 249 flow [2023-11-29 07:06:43,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2023-11-29 07:06:43,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:06:43,948 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:43,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 07:06:44,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:44,149 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:06:44,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:44,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1088151024, now seen corresponding path program 1 times [2023-11-29 07:06:44,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:44,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254126794] [2023-11-29 07:06:44,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:44,150 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:44,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:44,151 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:44,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 07:06:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:44,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:06:44,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:44,365 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-11-29 07:06:44,366 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 [2023-11-29 07:06:44,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:06:44,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:44,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:44,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254126794] [2023-11-29 07:06:44,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1254126794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:44,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:44,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 07:06:44,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876399061] [2023-11-29 07:06:44,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:44,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:06:44,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:44,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:06:44,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:06:44,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 136 [2023-11-29 07:06:44,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 109 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2023-11-29 07:06:44,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:06:44,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 136 [2023-11-29 07:06:44,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:06:45,330 INFO L124 PetriNetUnfolderBase]: 4408/7887 cut-off events. [2023-11-29 07:06:45,330 INFO L125 PetriNetUnfolderBase]: For 792/792 co-relation queries the response was YES. [2023-11-29 07:06:45,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16139 conditions, 7887 events. 4408/7887 cut-off events. For 792/792 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 57567 event pairs, 3679 based on Foata normal form. 28/5572 useless extension candidates. Maximal degree in co-relation 12649. Up to 5905 conditions per place. [2023-11-29 07:06:45,363 INFO L140 encePairwiseOnDemand]: 131/136 looper letters, 99 selfloop transitions, 3 changer transitions 0/139 dead transitions. [2023-11-29 07:06:45,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 139 transitions, 513 flow [2023-11-29 07:06:45,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:06:45,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 07:06:45,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2023-11-29 07:06:45,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6446078431372549 [2023-11-29 07:06:45,365 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 263 transitions. [2023-11-29 07:06:45,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 263 transitions. [2023-11-29 07:06:45,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:06:45,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 263 transitions. [2023-11-29 07:06:45,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2023-11-29 07:06:45,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:06:45,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:06:45,368 INFO L175 Difference]: Start difference. First operand has 115 places, 109 transitions, 249 flow. Second operand 3 states and 263 transitions. [2023-11-29 07:06:45,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 139 transitions, 513 flow [2023-11-29 07:06:45,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 139 transitions, 507 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 07:06:45,374 INFO L231 Difference]: Finished difference. Result has 113 places, 107 transitions, 245 flow [2023-11-29 07:06:45,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=245, PETRI_PLACES=113, PETRI_TRANSITIONS=107} [2023-11-29 07:06:45,375 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -17 predicate places. [2023-11-29 07:06:45,375 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 107 transitions, 245 flow [2023-11-29 07:06:45,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2023-11-29 07:06:45,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:06:45,376 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:45,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 07:06:45,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:45,576 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:06:45,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:45,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1088151025, now seen corresponding path program 1 times [2023-11-29 07:06:45,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:45,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65487766] [2023-11-29 07:06:45,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:45,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:45,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:45,578 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:45,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 07:06:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:45,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:06:45,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:45,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:06:45,826 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 [2023-11-29 07:06:45,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:06:45,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:45,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:45,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [65487766] [2023-11-29 07:06:45,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [65487766] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:45,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:45,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:06:45,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457838107] [2023-11-29 07:06:45,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:45,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:06:45,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:45,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:06:45,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:06:46,117 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 136 [2023-11-29 07:06:46,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 107 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:06:46,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:06:46,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 136 [2023-11-29 07:06:46,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:06:46,954 INFO L124 PetriNetUnfolderBase]: 4434/7908 cut-off events. [2023-11-29 07:06:46,954 INFO L125 PetriNetUnfolderBase]: For 790/790 co-relation queries the response was YES. [2023-11-29 07:06:46,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16018 conditions, 7908 events. 4434/7908 cut-off events. For 790/790 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 57544 event pairs, 3705 based on Foata normal form. 0/5569 useless extension candidates. Maximal degree in co-relation 12527. Up to 5959 conditions per place. [2023-11-29 07:06:46,984 INFO L140 encePairwiseOnDemand]: 131/136 looper letters, 101 selfloop transitions, 3 changer transitions 0/137 dead transitions. [2023-11-29 07:06:46,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 137 transitions, 513 flow [2023-11-29 07:06:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:06:46,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 07:06:46,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 302 transitions. [2023-11-29 07:06:46,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5551470588235294 [2023-11-29 07:06:46,986 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 302 transitions. [2023-11-29 07:06:46,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 302 transitions. [2023-11-29 07:06:46,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:06:46,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 302 transitions. [2023-11-29 07:06:46,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 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) [2023-11-29 07:06:46,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2023-11-29 07:06:46,989 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2023-11-29 07:06:46,989 INFO L175 Difference]: Start difference. First operand has 113 places, 107 transitions, 245 flow. Second operand 4 states and 302 transitions. [2023-11-29 07:06:46,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 137 transitions, 513 flow [2023-11-29 07:06:46,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 137 transitions, 507 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 07:06:46,996 INFO L231 Difference]: Finished difference. Result has 112 places, 105 transitions, 241 flow [2023-11-29 07:06:46,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=241, PETRI_PLACES=112, PETRI_TRANSITIONS=105} [2023-11-29 07:06:46,997 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -18 predicate places. [2023-11-29 07:06:46,997 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 105 transitions, 241 flow [2023-11-29 07:06:46,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:06:46,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:06:46,998 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:47,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 07:06:47,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:47,198 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:06:47,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:47,199 INFO L85 PathProgramCache]: Analyzing trace with hash 2038347730, now seen corresponding path program 1 times [2023-11-29 07:06:47,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:47,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802989414] [2023-11-29 07:06:47,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:47,199 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:47,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:47,200 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:47,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 07:06:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:47,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:06:47,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:47,339 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 [2023-11-29 07:06:47,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:06:47,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:47,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:47,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802989414] [2023-11-29 07:06:47,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802989414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:47,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:47,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:06:47,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665480732] [2023-11-29 07:06:47,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:47,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:06:47,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:47,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:06:47,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:06:47,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 136 [2023-11-29 07:06:47,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 105 transitions, 241 flow. Second operand has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 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) [2023-11-29 07:06:47,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:06:47,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 136 [2023-11-29 07:06:47,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:06:49,044 INFO L124 PetriNetUnfolderBase]: 3844/8191 cut-off events. [2023-11-29 07:06:49,045 INFO L125 PetriNetUnfolderBase]: For 481/481 co-relation queries the response was YES. [2023-11-29 07:06:49,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15240 conditions, 8191 events. 3844/8191 cut-off events. For 481/481 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 70276 event pairs, 437 based on Foata normal form. 0/6372 useless extension candidates. Maximal degree in co-relation 11189. Up to 3713 conditions per place. [2023-11-29 07:06:49,068 INFO L140 encePairwiseOnDemand]: 124/136 looper letters, 169 selfloop transitions, 13 changer transitions 1/218 dead transitions. [2023-11-29 07:06:49,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 218 transitions, 850 flow [2023-11-29 07:06:49,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:06:49,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 07:06:49,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 630 transitions. [2023-11-29 07:06:49,071 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5790441176470589 [2023-11-29 07:06:49,071 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 630 transitions. [2023-11-29 07:06:49,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 630 transitions. [2023-11-29 07:06:49,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:06:49,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 630 transitions. [2023-11-29 07:06:49,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 78.75) internal successors, (630), 8 states have internal predecessors, (630), 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) [2023-11-29 07:06:49,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 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) [2023-11-29 07:06:49,077 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 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) [2023-11-29 07:06:49,077 INFO L175 Difference]: Start difference. First operand has 112 places, 105 transitions, 241 flow. Second operand 8 states and 630 transitions. [2023-11-29 07:06:49,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 218 transitions, 850 flow [2023-11-29 07:06:49,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 218 transitions, 844 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 07:06:49,111 INFO L231 Difference]: Finished difference. Result has 121 places, 114 transitions, 334 flow [2023-11-29 07:06:49,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=334, PETRI_PLACES=121, PETRI_TRANSITIONS=114} [2023-11-29 07:06:49,112 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -9 predicate places. [2023-11-29 07:06:49,112 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 114 transitions, 334 flow [2023-11-29 07:06:49,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 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) [2023-11-29 07:06:49,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:06:49,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:49,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-29 07:06:49,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:49,314 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:06:49,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:49,315 INFO L85 PathProgramCache]: Analyzing trace with hash 2038347731, now seen corresponding path program 1 times [2023-11-29 07:06:49,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:49,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933764933] [2023-11-29 07:06:49,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:49,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:49,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:49,321 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:49,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 07:06:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:49,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 07:06:49,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:49,474 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 [2023-11-29 07:06:49,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:06:49,547 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:49,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:49,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933764933] [2023-11-29 07:06:49,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933764933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:49,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:49,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:06:49,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090206476] [2023-11-29 07:06:49,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:49,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:06:49,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:49,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:06:49,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:06:50,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 136 [2023-11-29 07:06:50,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 114 transitions, 334 flow. Second operand has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 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) [2023-11-29 07:06:50,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:06:50,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 136 [2023-11-29 07:06:50,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:06:51,567 INFO L124 PetriNetUnfolderBase]: 2867/6182 cut-off events. [2023-11-29 07:06:51,568 INFO L125 PetriNetUnfolderBase]: For 2299/2299 co-relation queries the response was YES. [2023-11-29 07:06:51,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12990 conditions, 6182 events. 2867/6182 cut-off events. For 2299/2299 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 50163 event pairs, 384 based on Foata normal form. 524/5761 useless extension candidates. Maximal degree in co-relation 11526. Up to 3099 conditions per place. [2023-11-29 07:06:51,599 INFO L140 encePairwiseOnDemand]: 128/136 looper letters, 151 selfloop transitions, 10 changer transitions 2/198 dead transitions. [2023-11-29 07:06:51,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 198 transitions, 848 flow [2023-11-29 07:06:51,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:06:51,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 07:06:51,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 549 transitions. [2023-11-29 07:06:51,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5766806722689075 [2023-11-29 07:06:51,602 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 549 transitions. [2023-11-29 07:06:51,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 549 transitions. [2023-11-29 07:06:51,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:06:51,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 549 transitions. [2023-11-29 07:06:51,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 states have internal predecessors, (549), 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) [2023-11-29 07:06:51,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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) [2023-11-29 07:06:51,608 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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) [2023-11-29 07:06:51,608 INFO L175 Difference]: Start difference. First operand has 121 places, 114 transitions, 334 flow. Second operand 7 states and 549 transitions. [2023-11-29 07:06:51,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 198 transitions, 848 flow [2023-11-29 07:06:51,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 198 transitions, 848 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 07:06:51,635 INFO L231 Difference]: Finished difference. Result has 130 places, 116 transitions, 387 flow [2023-11-29 07:06:51,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=387, PETRI_PLACES=130, PETRI_TRANSITIONS=116} [2023-11-29 07:06:51,636 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, 0 predicate places. [2023-11-29 07:06:51,636 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 116 transitions, 387 flow [2023-11-29 07:06:51,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 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) [2023-11-29 07:06:51,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:06:51,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:51,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-29 07:06:51,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:51,842 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:06:51,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:51,843 INFO L85 PathProgramCache]: Analyzing trace with hash 999883779, now seen corresponding path program 1 times [2023-11-29 07:06:51,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:51,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364754256] [2023-11-29 07:06:51,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:51,843 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:51,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:51,844 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:51,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 07:06:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:52,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:06:52,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:52,069 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:06:52,070 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:06:52,070 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:06:52,074 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 [2023-11-29 07:06:52,125 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:06:52,135 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:06:52,136 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 83 treesize of output 73 [2023-11-29 07:06:52,270 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:06:52,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 141 treesize of output 57 [2023-11-29 07:06:52,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:06:52,294 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:52,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:52,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364754256] [2023-11-29 07:06:52,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364754256] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:52,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:52,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:06:52,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349502406] [2023-11-29 07:06:52,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:52,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:06:52,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:52,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:06:52,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:06:52,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 136 [2023-11-29 07:06:52,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 116 transitions, 387 flow. Second operand has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 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) [2023-11-29 07:06:52,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:06:52,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 136 [2023-11-29 07:06:52,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:06:56,146 INFO L124 PetriNetUnfolderBase]: 4445/8167 cut-off events. [2023-11-29 07:06:56,146 INFO L125 PetriNetUnfolderBase]: For 6254/6254 co-relation queries the response was YES. [2023-11-29 07:06:56,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19432 conditions, 8167 events. 4445/8167 cut-off events. For 6254/6254 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 62580 event pairs, 2390 based on Foata normal form. 211/7021 useless extension candidates. Maximal degree in co-relation 17964. Up to 5367 conditions per place. [2023-11-29 07:06:56,187 INFO L140 encePairwiseOnDemand]: 126/136 looper letters, 151 selfloop transitions, 21 changer transitions 0/204 dead transitions. [2023-11-29 07:06:56,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 204 transitions, 976 flow [2023-11-29 07:06:56,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:06:56,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 07:06:56,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2023-11-29 07:06:56,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5796568627450981 [2023-11-29 07:06:56,190 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 473 transitions. [2023-11-29 07:06:56,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 473 transitions. [2023-11-29 07:06:56,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:06:56,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 473 transitions. [2023-11-29 07:06:56,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 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) [2023-11-29 07:06:56,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 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) [2023-11-29 07:06:56,194 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 states have internal predecessors, (952), 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) [2023-11-29 07:06:56,194 INFO L175 Difference]: Start difference. First operand has 130 places, 116 transitions, 387 flow. Second operand 6 states and 473 transitions. [2023-11-29 07:06:56,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 204 transitions, 976 flow [2023-11-29 07:06:56,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 204 transitions, 955 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 07:06:56,221 INFO L231 Difference]: Finished difference. Result has 134 places, 138 transitions, 547 flow [2023-11-29 07:06:56,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=547, PETRI_PLACES=134, PETRI_TRANSITIONS=138} [2023-11-29 07:06:56,222 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2023-11-29 07:06:56,222 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 138 transitions, 547 flow [2023-11-29 07:06:56,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 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) [2023-11-29 07:06:56,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:06:56,223 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:56,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-29 07:06:56,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:56,423 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:06:56,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:56,423 INFO L85 PathProgramCache]: Analyzing trace with hash -313085800, now seen corresponding path program 1 times [2023-11-29 07:06:56,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:56,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330433592] [2023-11-29 07:06:56,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:56,424 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:56,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:56,425 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:56,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-29 07:06:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:56,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:06:56,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:56,603 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 [2023-11-29 07:06:56,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:06:56,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:56,642 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:56,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330433592] [2023-11-29 07:06:56,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330433592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:56,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:56,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:06:56,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830577192] [2023-11-29 07:06:56,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:56,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:06:56,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:56,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:06:56,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:06:56,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 136 [2023-11-29 07:06:56,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 138 transitions, 547 flow. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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) [2023-11-29 07:06:56,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:06:56,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 136 [2023-11-29 07:06:56,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:06:58,618 INFO L124 PetriNetUnfolderBase]: 3567/7200 cut-off events. [2023-11-29 07:06:58,618 INFO L125 PetriNetUnfolderBase]: For 6083/6083 co-relation queries the response was YES. [2023-11-29 07:06:58,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18877 conditions, 7200 events. 3567/7200 cut-off events. For 6083/6083 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 57464 event pairs, 447 based on Foata normal form. 0/6760 useless extension candidates. Maximal degree in co-relation 17233. Up to 3521 conditions per place. [2023-11-29 07:06:58,652 INFO L140 encePairwiseOnDemand]: 124/136 looper letters, 202 selfloop transitions, 20 changer transitions 0/258 dead transitions. [2023-11-29 07:06:58,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 258 transitions, 1471 flow [2023-11-29 07:06:58,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:06:58,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 07:06:58,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 625 transitions. [2023-11-29 07:06:58,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5744485294117647 [2023-11-29 07:06:58,655 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 625 transitions. [2023-11-29 07:06:58,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 625 transitions. [2023-11-29 07:06:58,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:06:58,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 625 transitions. [2023-11-29 07:06:58,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 78.125) internal successors, (625), 8 states have internal predecessors, (625), 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) [2023-11-29 07:06:58,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 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) [2023-11-29 07:06:58,660 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 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) [2023-11-29 07:06:58,660 INFO L175 Difference]: Start difference. First operand has 134 places, 138 transitions, 547 flow. Second operand 8 states and 625 transitions. [2023-11-29 07:06:58,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 258 transitions, 1471 flow [2023-11-29 07:06:58,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 258 transitions, 1471 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 07:06:58,708 INFO L231 Difference]: Finished difference. Result has 145 places, 148 transitions, 707 flow [2023-11-29 07:06:58,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=707, PETRI_PLACES=145, PETRI_TRANSITIONS=148} [2023-11-29 07:06:58,709 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, 15 predicate places. [2023-11-29 07:06:58,709 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 148 transitions, 707 flow [2023-11-29 07:06:58,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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) [2023-11-29 07:06:58,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:06:58,710 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:58,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-29 07:06:58,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:58,910 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:06:58,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:58,911 INFO L85 PathProgramCache]: Analyzing trace with hash -313085799, now seen corresponding path program 1 times [2023-11-29 07:06:58,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:06:58,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975547990] [2023-11-29 07:06:58,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:58,911 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:06:58,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:06:58,912 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:06:58,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-29 07:06:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:59,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 07:06:59,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:59,097 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 [2023-11-29 07:06:59,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:06:59,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:59,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:06:59,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975547990] [2023-11-29 07:06:59,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975547990] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:59,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:59,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:06:59,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462452853] [2023-11-29 07:06:59,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:59,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:06:59,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:06:59,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:06:59,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:06:59,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 136 [2023-11-29 07:06:59,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 148 transitions, 707 flow. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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) [2023-11-29 07:06:59,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:06:59,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 136 [2023-11-29 07:06:59,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:07:01,165 INFO L124 PetriNetUnfolderBase]: 2658/5409 cut-off events. [2023-11-29 07:07:01,165 INFO L125 PetriNetUnfolderBase]: For 7938/7940 co-relation queries the response was YES. [2023-11-29 07:07:01,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15700 conditions, 5409 events. 2658/5409 cut-off events. For 7938/7940 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 40741 event pairs, 560 based on Foata normal form. 522/5809 useless extension candidates. Maximal degree in co-relation 14447. Up to 3260 conditions per place. [2023-11-29 07:07:01,194 INFO L140 encePairwiseOnDemand]: 128/136 looper letters, 176 selfloop transitions, 14 changer transitions 1/227 dead transitions. [2023-11-29 07:07:01,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 227 transitions, 1436 flow [2023-11-29 07:07:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:07:01,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 07:07:01,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 531 transitions. [2023-11-29 07:07:01,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5577731092436975 [2023-11-29 07:07:01,197 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 531 transitions. [2023-11-29 07:07:01,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 531 transitions. [2023-11-29 07:07:01,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:07:01,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 531 transitions. [2023-11-29 07:07:01,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 75.85714285714286) internal successors, (531), 7 states have internal predecessors, (531), 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) [2023-11-29 07:07:01,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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) [2023-11-29 07:07:01,201 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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) [2023-11-29 07:07:01,201 INFO L175 Difference]: Start difference. First operand has 145 places, 148 transitions, 707 flow. Second operand 7 states and 531 transitions. [2023-11-29 07:07:01,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 227 transitions, 1436 flow [2023-11-29 07:07:01,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 227 transitions, 1433 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 07:07:01,236 INFO L231 Difference]: Finished difference. Result has 153 places, 151 transitions, 778 flow [2023-11-29 07:07:01,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=778, PETRI_PLACES=153, PETRI_TRANSITIONS=151} [2023-11-29 07:07:01,237 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, 23 predicate places. [2023-11-29 07:07:01,237 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 151 transitions, 778 flow [2023-11-29 07:07:01,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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) [2023-11-29 07:07:01,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:07:01,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:01,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-29 07:07:01,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:01,438 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:07:01,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:01,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1814955641, now seen corresponding path program 1 times [2023-11-29 07:07:01,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:07:01,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533237371] [2023-11-29 07:07:01,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:01,439 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:01,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:07:01,440 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:07:01,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 07:07:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:01,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:07:01,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:01,658 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:07:01,658 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:07:01,659 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:07:01,660 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 [2023-11-29 07:07:01,748 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:07:01,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 49 [2023-11-29 07:07:01,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:07:01,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:01,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:07:01,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533237371] [2023-11-29 07:07:01,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533237371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:01,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:01,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:07:01,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951264613] [2023-11-29 07:07:01,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:01,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:07:01,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:07:01,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:07:01,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:07:01,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 136 [2023-11-29 07:07:01,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 151 transitions, 778 flow. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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) [2023-11-29 07:07:01,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:07:01,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 136 [2023-11-29 07:07:01,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:07:04,435 INFO L124 PetriNetUnfolderBase]: 3223/6270 cut-off events. [2023-11-29 07:07:04,435 INFO L125 PetriNetUnfolderBase]: For 13301/13341 co-relation queries the response was YES. [2023-11-29 07:07:04,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19884 conditions, 6270 events. 3223/6270 cut-off events. For 13301/13341 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 47103 event pairs, 1566 based on Foata normal form. 210/6348 useless extension candidates. Maximal degree in co-relation 17991. Up to 4007 conditions per place. [2023-11-29 07:07:04,475 INFO L140 encePairwiseOnDemand]: 128/136 looper letters, 139 selfloop transitions, 35 changer transitions 0/207 dead transitions. [2023-11-29 07:07:04,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 207 transitions, 1447 flow [2023-11-29 07:07:04,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:07:04,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 07:07:04,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 386 transitions. [2023-11-29 07:07:04,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5676470588235294 [2023-11-29 07:07:04,477 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 386 transitions. [2023-11-29 07:07:04,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 386 transitions. [2023-11-29 07:07:04,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:07:04,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 386 transitions. [2023-11-29 07:07:04,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 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) [2023-11-29 07:07:04,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 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) [2023-11-29 07:07:04,480 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 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) [2023-11-29 07:07:04,481 INFO L175 Difference]: Start difference. First operand has 153 places, 151 transitions, 778 flow. Second operand 5 states and 386 transitions. [2023-11-29 07:07:04,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 207 transitions, 1447 flow [2023-11-29 07:07:04,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 207 transitions, 1423 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 07:07:04,534 INFO L231 Difference]: Finished difference. Result has 155 places, 170 transitions, 1071 flow [2023-11-29 07:07:04,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1071, PETRI_PLACES=155, PETRI_TRANSITIONS=170} [2023-11-29 07:07:04,534 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, 25 predicate places. [2023-11-29 07:07:04,535 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 170 transitions, 1071 flow [2023-11-29 07:07:04,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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) [2023-11-29 07:07:04,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:07:04,535 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:04,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 07:07:04,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:04,735 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:07:04,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:04,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1669511970, now seen corresponding path program 1 times [2023-11-29 07:07:04,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:07:04,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018437722] [2023-11-29 07:07:04,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:04,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:04,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:07:04,737 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:07:04,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-29 07:07:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:04,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 07:07:04,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:04,999 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 [2023-11-29 07:07:05,003 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 [2023-11-29 07:07:05,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:07:05,137 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 [2023-11-29 07:07:05,146 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 07:07:05,146 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 [2023-11-29 07:07:05,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:07:05,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:05,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:07:05,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018437722] [2023-11-29 07:07:05,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018437722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:05,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:05,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:07:05,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919426313] [2023-11-29 07:07:05,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:05,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:07:05,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:07:05,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:07:05,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:07:05,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 136 [2023-11-29 07:07:05,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 170 transitions, 1071 flow. Second operand has 6 states, 6 states have (on average 57.166666666666664) internal successors, (343), 6 states have internal predecessors, (343), 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) [2023-11-29 07:07:05,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:07:05,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 136 [2023-11-29 07:07:05,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:07:07,548 INFO L124 PetriNetUnfolderBase]: 3364/6731 cut-off events. [2023-11-29 07:07:07,548 INFO L125 PetriNetUnfolderBase]: For 17686/17725 co-relation queries the response was YES. [2023-11-29 07:07:07,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23316 conditions, 6731 events. 3364/6731 cut-off events. For 17686/17725 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 52947 event pairs, 735 based on Foata normal form. 39/6630 useless extension candidates. Maximal degree in co-relation 21252. Up to 3100 conditions per place. [2023-11-29 07:07:07,594 INFO L140 encePairwiseOnDemand]: 124/136 looper letters, 211 selfloop transitions, 27 changer transitions 0/274 dead transitions. [2023-11-29 07:07:07,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 274 transitions, 2089 flow [2023-11-29 07:07:07,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:07:07,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 07:07:07,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 665 transitions. [2023-11-29 07:07:07,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5433006535947712 [2023-11-29 07:07:07,597 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 665 transitions. [2023-11-29 07:07:07,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 665 transitions. [2023-11-29 07:07:07,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:07:07,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 665 transitions. [2023-11-29 07:07:07,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 73.88888888888889) internal successors, (665), 9 states have internal predecessors, (665), 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) [2023-11-29 07:07:07,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2023-11-29 07:07:07,604 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2023-11-29 07:07:07,604 INFO L175 Difference]: Start difference. First operand has 155 places, 170 transitions, 1071 flow. Second operand 9 states and 665 transitions. [2023-11-29 07:07:07,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 274 transitions, 2089 flow [2023-11-29 07:07:07,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 274 transitions, 2074 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-29 07:07:07,680 INFO L231 Difference]: Finished difference. Result has 159 places, 168 transitions, 1112 flow [2023-11-29 07:07:07,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1112, PETRI_PLACES=159, PETRI_TRANSITIONS=168} [2023-11-29 07:07:07,681 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, 29 predicate places. [2023-11-29 07:07:07,681 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 168 transitions, 1112 flow [2023-11-29 07:07:07,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.166666666666664) internal successors, (343), 6 states have internal predecessors, (343), 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) [2023-11-29 07:07:07,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:07:07,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:07,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-11-29 07:07:07,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:07,882 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:07:07,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:07,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1596421508, now seen corresponding path program 1 times [2023-11-29 07:07:07,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:07:07,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701714379] [2023-11-29 07:07:07,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:07,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:07,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:07:07,884 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:07:07,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-29 07:07:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:08,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 07:07:08,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:08,150 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 [2023-11-29 07:07:08,156 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 [2023-11-29 07:07:08,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:07:08,298 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 [2023-11-29 07:07:08,309 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 07:07:08,309 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 [2023-11-29 07:07:08,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:07:08,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:08,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:07:08,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701714379] [2023-11-29 07:07:08,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701714379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:08,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:08,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:07:08,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569847419] [2023-11-29 07:07:08,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:08,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:07:08,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:07:08,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:07:08,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:07:09,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 136 [2023-11-29 07:07:09,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 168 transitions, 1112 flow. Second operand has 6 states, 6 states have (on average 57.166666666666664) internal successors, (343), 6 states have internal predecessors, (343), 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) [2023-11-29 07:07:09,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:07:09,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 136 [2023-11-29 07:07:09,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:07:11,100 INFO L124 PetriNetUnfolderBase]: 3775/7486 cut-off events. [2023-11-29 07:07:11,101 INFO L125 PetriNetUnfolderBase]: For 22642/22679 co-relation queries the response was YES. [2023-11-29 07:07:11,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26190 conditions, 7486 events. 3775/7486 cut-off events. For 22642/22679 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 60181 event pairs, 1015 based on Foata normal form. 76/7445 useless extension candidates. Maximal degree in co-relation 24111. Up to 2946 conditions per place. [2023-11-29 07:07:11,147 INFO L140 encePairwiseOnDemand]: 124/136 looper letters, 229 selfloop transitions, 27 changer transitions 0/292 dead transitions. [2023-11-29 07:07:11,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 292 transitions, 2260 flow [2023-11-29 07:07:11,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:07:11,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 07:07:11,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 680 transitions. [2023-11-29 07:07:11,151 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2023-11-29 07:07:11,151 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 680 transitions. [2023-11-29 07:07:11,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 680 transitions. [2023-11-29 07:07:11,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:07:11,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 680 transitions. [2023-11-29 07:07:11,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.55555555555556) internal successors, (680), 9 states have internal predecessors, (680), 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) [2023-11-29 07:07:11,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2023-11-29 07:07:11,155 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2023-11-29 07:07:11,155 INFO L175 Difference]: Start difference. First operand has 159 places, 168 transitions, 1112 flow. Second operand 9 states and 680 transitions. [2023-11-29 07:07:11,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 292 transitions, 2260 flow [2023-11-29 07:07:11,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 292 transitions, 2204 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-29 07:07:11,244 INFO L231 Difference]: Finished difference. Result has 157 places, 166 transitions, 1122 flow [2023-11-29 07:07:11,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1046, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1122, PETRI_PLACES=157, PETRI_TRANSITIONS=166} [2023-11-29 07:07:11,245 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, 27 predicate places. [2023-11-29 07:07:11,245 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 166 transitions, 1122 flow [2023-11-29 07:07:11,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.166666666666664) internal successors, (343), 6 states have internal predecessors, (343), 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) [2023-11-29 07:07:11,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:07:11,245 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:11,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-11-29 07:07:11,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:11,446 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:07:11,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:11,446 INFO L85 PathProgramCache]: Analyzing trace with hash 428940310, now seen corresponding path program 1 times [2023-11-29 07:07:11,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:07:11,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515289484] [2023-11-29 07:07:11,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:11,447 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:11,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:07:11,448 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:07:11,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-29 07:07:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:11,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:07:11,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:11,812 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_87| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_87| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_87|)))) is different from true [2023-11-29 07:07:11,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:07:11,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:11,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:07:11,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515289484] [2023-11-29 07:07:11,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515289484] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:11,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:11,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:07:11,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378325610] [2023-11-29 07:07:11,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:11,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:07:11,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:07:11,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:07:11,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2023-11-29 07:07:11,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 136 [2023-11-29 07:07:11,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 166 transitions, 1122 flow. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 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) [2023-11-29 07:07:11,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:07:11,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 136 [2023-11-29 07:07:11,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:07:13,702 INFO L124 PetriNetUnfolderBase]: 4226/7886 cut-off events. [2023-11-29 07:07:13,702 INFO L125 PetriNetUnfolderBase]: For 26002/26004 co-relation queries the response was YES. [2023-11-29 07:07:13,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28505 conditions, 7886 events. 4226/7886 cut-off events. For 26002/26004 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 60132 event pairs, 1853 based on Foata normal form. 1/7786 useless extension candidates. Maximal degree in co-relation 26427. Up to 3500 conditions per place. [2023-11-29 07:07:13,743 INFO L140 encePairwiseOnDemand]: 110/136 looper letters, 154 selfloop transitions, 40 changer transitions 4/216 dead transitions. [2023-11-29 07:07:13,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 216 transitions, 1782 flow [2023-11-29 07:07:13,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:07:13,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 07:07:13,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 274 transitions. [2023-11-29 07:07:13,745 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40294117647058825 [2023-11-29 07:07:13,745 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 274 transitions. [2023-11-29 07:07:13,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 274 transitions. [2023-11-29 07:07:13,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:07:13,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 274 transitions. [2023-11-29 07:07:13,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 54.8) internal successors, (274), 5 states have internal predecessors, (274), 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) [2023-11-29 07:07:13,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 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) [2023-11-29 07:07:13,748 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 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) [2023-11-29 07:07:13,748 INFO L175 Difference]: Start difference. First operand has 157 places, 166 transitions, 1122 flow. Second operand 5 states and 274 transitions. [2023-11-29 07:07:13,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 216 transitions, 1782 flow [2023-11-29 07:07:13,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 216 transitions, 1743 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-29 07:07:13,806 INFO L231 Difference]: Finished difference. Result has 158 places, 184 transitions, 1377 flow [2023-11-29 07:07:13,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1083, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1377, PETRI_PLACES=158, PETRI_TRANSITIONS=184} [2023-11-29 07:07:13,807 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, 28 predicate places. [2023-11-29 07:07:13,807 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 184 transitions, 1377 flow [2023-11-29 07:07:13,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 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) [2023-11-29 07:07:13,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:07:13,807 INFO L208 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] [2023-11-29 07:07:13,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-11-29 07:07:14,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:14,008 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:07:14,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:14,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1558554402, now seen corresponding path program 1 times [2023-11-29 07:07:14,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:07:14,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836221174] [2023-11-29 07:07:14,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:14,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:14,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:07:14,010 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:07:14,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-11-29 07:07:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:14,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:07:14,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:14,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:07:14,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:14,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:07:14,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836221174] [2023-11-29 07:07:14,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836221174] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:14,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:14,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:07:14,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223166426] [2023-11-29 07:07:14,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:14,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:07:14,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:07:14,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:07:14,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:07:14,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 136 [2023-11-29 07:07:14,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 184 transitions, 1377 flow. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:07:14,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:07:14,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 136 [2023-11-29 07:07:14,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:07:14,847 INFO L124 PetriNetUnfolderBase]: 511/1047 cut-off events. [2023-11-29 07:07:14,847 INFO L125 PetriNetUnfolderBase]: For 2506/2506 co-relation queries the response was YES. [2023-11-29 07:07:14,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3692 conditions, 1047 events. 511/1047 cut-off events. For 2506/2506 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 5037 event pairs, 63 based on Foata normal form. 64/1019 useless extension candidates. Maximal degree in co-relation 3664. Up to 604 conditions per place. [2023-11-29 07:07:14,853 INFO L140 encePairwiseOnDemand]: 132/136 looper letters, 83 selfloop transitions, 6 changer transitions 0/119 dead transitions. [2023-11-29 07:07:14,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 119 transitions, 731 flow [2023-11-29 07:07:14,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:07:14,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 07:07:14,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 298 transitions. [2023-11-29 07:07:14,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5477941176470589 [2023-11-29 07:07:14,855 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 298 transitions. [2023-11-29 07:07:14,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 298 transitions. [2023-11-29 07:07:14,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:07:14,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 298 transitions. [2023-11-29 07:07:14,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2023-11-29 07:07:14,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2023-11-29 07:07:14,857 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2023-11-29 07:07:14,857 INFO L175 Difference]: Start difference. First operand has 158 places, 184 transitions, 1377 flow. Second operand 4 states and 298 transitions. [2023-11-29 07:07:14,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 119 transitions, 731 flow [2023-11-29 07:07:14,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 119 transitions, 528 flow, removed 49 selfloop flow, removed 33 redundant places. [2023-11-29 07:07:14,870 INFO L231 Difference]: Finished difference. Result has 108 places, 93 transitions, 268 flow [2023-11-29 07:07:14,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=108, PETRI_TRANSITIONS=93} [2023-11-29 07:07:14,870 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -22 predicate places. [2023-11-29 07:07:14,870 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 93 transitions, 268 flow [2023-11-29 07:07:14,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:07:14,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:07:14,871 INFO L208 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] [2023-11-29 07:07:14,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-11-29 07:07:15,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:15,071 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:07:15,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:15,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1254871240, now seen corresponding path program 1 times [2023-11-29 07:07:15,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:07:15,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491647648] [2023-11-29 07:07:15,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:15,073 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:15,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:07:15,074 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:07:15,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-11-29 07:07:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:15,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:07:15,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:15,313 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 [2023-11-29 07:07:15,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:07:15,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:15,331 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:07:15,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491647648] [2023-11-29 07:07:15,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491647648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:15,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:15,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:07:15,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852630755] [2023-11-29 07:07:15,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:15,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:07:15,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:07:15,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:07:15,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:07:15,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 136 [2023-11-29 07:07:15,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 93 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2023-11-29 07:07:15,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:07:15,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 136 [2023-11-29 07:07:15,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:07:15,925 INFO L124 PetriNetUnfolderBase]: 511/1042 cut-off events. [2023-11-29 07:07:15,925 INFO L125 PetriNetUnfolderBase]: For 802/802 co-relation queries the response was YES. [2023-11-29 07:07:15,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2728 conditions, 1042 events. 511/1042 cut-off events. For 802/802 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4748 event pairs, 271 based on Foata normal form. 0/956 useless extension candidates. Maximal degree in co-relation 2717. Up to 512 conditions per place. [2023-11-29 07:07:15,929 INFO L140 encePairwiseOnDemand]: 132/136 looper letters, 70 selfloop transitions, 5 changer transitions 0/103 dead transitions. [2023-11-29 07:07:15,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 103 transitions, 458 flow [2023-11-29 07:07:15,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:07:15,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 07:07:15,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2023-11-29 07:07:15,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5588235294117647 [2023-11-29 07:07:15,931 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions. [2023-11-29 07:07:15,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions. [2023-11-29 07:07:15,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:07:15,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions. [2023-11-29 07:07:15,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2023-11-29 07:07:15,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:07:15,933 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:07:15,933 INFO L175 Difference]: Start difference. First operand has 108 places, 93 transitions, 268 flow. Second operand 3 states and 228 transitions. [2023-11-29 07:07:15,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 103 transitions, 458 flow [2023-11-29 07:07:15,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 103 transitions, 446 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 07:07:15,936 INFO L231 Difference]: Finished difference. Result has 105 places, 91 transitions, 262 flow [2023-11-29 07:07:15,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=105, PETRI_TRANSITIONS=91} [2023-11-29 07:07:15,937 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -25 predicate places. [2023-11-29 07:07:15,937 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 91 transitions, 262 flow [2023-11-29 07:07:15,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2023-11-29 07:07:15,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:07:15,937 INFO L208 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] [2023-11-29 07:07:15,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-11-29 07:07:16,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:16,138 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:07:16,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:16,138 INFO L85 PathProgramCache]: Analyzing trace with hash 131696033, now seen corresponding path program 1 times [2023-11-29 07:07:16,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:07:16,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477481604] [2023-11-29 07:07:16,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:16,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:16,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:07:16,140 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:07:16,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-11-29 07:07:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:16,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:07:16,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:16,377 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 [2023-11-29 07:07:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:07:16,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:16,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:07:16,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477481604] [2023-11-29 07:07:16,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477481604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:16,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:16,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:07:16,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462968948] [2023-11-29 07:07:16,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:16,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:07:16,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:07:16,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:07:16,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:07:16,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 136 [2023-11-29 07:07:16,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 91 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2023-11-29 07:07:16,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:07:16,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 136 [2023-11-29 07:07:16,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:07:16,924 INFO L124 PetriNetUnfolderBase]: 511/1033 cut-off events. [2023-11-29 07:07:16,924 INFO L125 PetriNetUnfolderBase]: For 633/633 co-relation queries the response was YES. [2023-11-29 07:07:16,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2655 conditions, 1033 events. 511/1033 cut-off events. For 633/633 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4672 event pairs, 271 based on Foata normal form. 1/948 useless extension candidates. Maximal degree in co-relation 2644. Up to 512 conditions per place. [2023-11-29 07:07:16,929 INFO L140 encePairwiseOnDemand]: 132/136 looper letters, 70 selfloop transitions, 5 changer transitions 0/101 dead transitions. [2023-11-29 07:07:16,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 101 transitions, 452 flow [2023-11-29 07:07:16,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:07:16,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 07:07:16,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2023-11-29 07:07:16,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5588235294117647 [2023-11-29 07:07:16,930 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions. [2023-11-29 07:07:16,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions. [2023-11-29 07:07:16,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:07:16,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions. [2023-11-29 07:07:16,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2023-11-29 07:07:16,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:07:16,932 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:07:16,932 INFO L175 Difference]: Start difference. First operand has 105 places, 91 transitions, 262 flow. Second operand 3 states and 228 transitions. [2023-11-29 07:07:16,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 101 transitions, 452 flow [2023-11-29 07:07:16,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 101 transitions, 442 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 07:07:16,935 INFO L231 Difference]: Finished difference. Result has 103 places, 89 transitions, 258 flow [2023-11-29 07:07:16,935 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=103, PETRI_TRANSITIONS=89} [2023-11-29 07:07:16,936 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -27 predicate places. [2023-11-29 07:07:16,936 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 89 transitions, 258 flow [2023-11-29 07:07:16,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2023-11-29 07:07:16,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:07:16,936 INFO L208 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] [2023-11-29 07:07:16,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2023-11-29 07:07:17,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:17,137 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:07:17,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:17,137 INFO L85 PathProgramCache]: Analyzing trace with hash -212389609, now seen corresponding path program 1 times [2023-11-29 07:07:17,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:07:17,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430693253] [2023-11-29 07:07:17,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:17,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:17,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:07:17,139 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:07:17,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-11-29 07:07:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:17,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:07:17,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:17,468 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 [2023-11-29 07:07:17,521 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-29 07:07:17,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-29 07:07:17,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:07:17,574 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:17,574 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:07:17,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430693253] [2023-11-29 07:07:17,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430693253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:17,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:17,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:07:17,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117658552] [2023-11-29 07:07:17,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:17,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:07:17,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:07:17,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:07:17,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:07:17,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 136 [2023-11-29 07:07:17,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 89 transitions, 258 flow. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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) [2023-11-29 07:07:17,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:07:17,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 136 [2023-11-29 07:07:17,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:07:18,740 INFO L124 PetriNetUnfolderBase]: 483/973 cut-off events. [2023-11-29 07:07:18,740 INFO L125 PetriNetUnfolderBase]: For 609/609 co-relation queries the response was YES. [2023-11-29 07:07:18,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2514 conditions, 973 events. 483/973 cut-off events. For 609/609 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4313 event pairs, 271 based on Foata normal form. 0/920 useless extension candidates. Maximal degree in co-relation 2503. Up to 510 conditions per place. [2023-11-29 07:07:18,744 INFO L140 encePairwiseOnDemand]: 127/136 looper letters, 66 selfloop transitions, 8 changer transitions 0/97 dead transitions. [2023-11-29 07:07:18,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 97 transitions, 442 flow [2023-11-29 07:07:18,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:07:18,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 07:07:18,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 258 transitions. [2023-11-29 07:07:18,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4742647058823529 [2023-11-29 07:07:18,746 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 258 transitions. [2023-11-29 07:07:18,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 258 transitions. [2023-11-29 07:07:18,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:07:18,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 258 transitions. [2023-11-29 07:07:18,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 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) [2023-11-29 07:07:18,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2023-11-29 07:07:18,749 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2023-11-29 07:07:18,749 INFO L175 Difference]: Start difference. First operand has 103 places, 89 transitions, 258 flow. Second operand 4 states and 258 transitions. [2023-11-29 07:07:18,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 97 transitions, 442 flow [2023-11-29 07:07:18,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 97 transitions, 432 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 07:07:18,754 INFO L231 Difference]: Finished difference. Result has 100 places, 85 transitions, 256 flow [2023-11-29 07:07:18,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=100, PETRI_TRANSITIONS=85} [2023-11-29 07:07:18,754 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -30 predicate places. [2023-11-29 07:07:18,755 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 85 transitions, 256 flow [2023-11-29 07:07:18,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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) [2023-11-29 07:07:18,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:07:18,755 INFO L208 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] [2023-11-29 07:07:18,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2023-11-29 07:07:18,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:18,956 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:07:18,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:18,956 INFO L85 PathProgramCache]: Analyzing trace with hash -212389608, now seen corresponding path program 1 times [2023-11-29 07:07:18,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:07:18,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708066003] [2023-11-29 07:07:18,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:18,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:18,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:07:18,958 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:07:18,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-11-29 07:07:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:19,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 07:07:19,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:19,323 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 [2023-11-29 07:07:19,328 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 [2023-11-29 07:07:19,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:07:19,502 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 [2023-11-29 07:07:19,515 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 07:07:19,515 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 [2023-11-29 07:07:19,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:07:19,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:19,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:07:19,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708066003] [2023-11-29 07:07:19,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708066003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:19,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:19,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:07:19,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68919448] [2023-11-29 07:07:19,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:19,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:07:19,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:07:19,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:07:19,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:07:19,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 136 [2023-11-29 07:07:19,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 85 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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) [2023-11-29 07:07:19,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:07:19,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 136 [2023-11-29 07:07:19,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:07:20,272 INFO L124 PetriNetUnfolderBase]: 455/913 cut-off events. [2023-11-29 07:07:20,272 INFO L125 PetriNetUnfolderBase]: For 586/586 co-relation queries the response was YES. [2023-11-29 07:07:20,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2377 conditions, 913 events. 455/913 cut-off events. For 586/586 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3993 event pairs, 271 based on Foata normal form. 0/889 useless extension candidates. Maximal degree in co-relation 2366. Up to 498 conditions per place. [2023-11-29 07:07:20,276 INFO L140 encePairwiseOnDemand]: 129/136 looper letters, 68 selfloop transitions, 6 changer transitions 0/93 dead transitions. [2023-11-29 07:07:20,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 93 transitions, 440 flow [2023-11-29 07:07:20,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:07:20,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 07:07:20,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 242 transitions. [2023-11-29 07:07:20,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44485294117647056 [2023-11-29 07:07:20,278 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 242 transitions. [2023-11-29 07:07:20,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 242 transitions. [2023-11-29 07:07:20,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:07:20,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 242 transitions. [2023-11-29 07:07:20,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:07:20,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2023-11-29 07:07:20,280 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2023-11-29 07:07:20,280 INFO L175 Difference]: Start difference. First operand has 100 places, 85 transitions, 256 flow. Second operand 4 states and 242 transitions. [2023-11-29 07:07:20,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 93 transitions, 440 flow [2023-11-29 07:07:20,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 93 transitions, 424 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 07:07:20,283 INFO L231 Difference]: Finished difference. Result has 96 places, 81 transitions, 244 flow [2023-11-29 07:07:20,283 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=96, PETRI_TRANSITIONS=81} [2023-11-29 07:07:20,284 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -34 predicate places. [2023-11-29 07:07:20,284 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 81 transitions, 244 flow [2023-11-29 07:07:20,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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) [2023-11-29 07:07:20,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:07:20,284 INFO L208 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] [2023-11-29 07:07:20,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-11-29 07:07:20,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:20,485 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:07:20,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:20,485 INFO L85 PathProgramCache]: Analyzing trace with hash 2052036860, now seen corresponding path program 1 times [2023-11-29 07:07:20,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:07:20,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074342597] [2023-11-29 07:07:20,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:20,486 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:20,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:07:20,487 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:07:20,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-11-29 07:07:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:20,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:07:20,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:20,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:07:20,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:07:20,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:07:20,901 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:07:20,901 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:07:20,904 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 [2023-11-29 07:07:20,952 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:07:20,953 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:07:20,960 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:07:20,961 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 78 treesize of output 83 [2023-11-29 07:07:21,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:07:21,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:21,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:07:21,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074342597] [2023-11-29 07:07:21,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074342597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:21,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:21,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:07:21,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673700921] [2023-11-29 07:07:21,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:21,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:07:21,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:07:21,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:07:21,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:07:21,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 136 [2023-11-29 07:07:21,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 81 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2023-11-29 07:07:21,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:07:21,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 136 [2023-11-29 07:07:21,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:07:22,517 INFO L124 PetriNetUnfolderBase]: 476/930 cut-off events. [2023-11-29 07:07:22,517 INFO L125 PetriNetUnfolderBase]: For 556/556 co-relation queries the response was YES. [2023-11-29 07:07:22,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2465 conditions, 930 events. 476/930 cut-off events. For 556/556 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3844 event pairs, 382 based on Foata normal form. 0/902 useless extension candidates. Maximal degree in co-relation 2454. Up to 779 conditions per place. [2023-11-29 07:07:22,520 INFO L140 encePairwiseOnDemand]: 128/136 looper letters, 71 selfloop transitions, 9 changer transitions 0/103 dead transitions. [2023-11-29 07:07:22,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 103 transitions, 479 flow [2023-11-29 07:07:22,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:07:22,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 07:07:22,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 279 transitions. [2023-11-29 07:07:22,522 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5128676470588235 [2023-11-29 07:07:22,522 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 279 transitions. [2023-11-29 07:07:22,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 279 transitions. [2023-11-29 07:07:22,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:07:22,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 279 transitions. [2023-11-29 07:07:22,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:07:22,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2023-11-29 07:07:22,523 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 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) [2023-11-29 07:07:22,523 INFO L175 Difference]: Start difference. First operand has 96 places, 81 transitions, 244 flow. Second operand 4 states and 279 transitions. [2023-11-29 07:07:22,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 103 transitions, 479 flow [2023-11-29 07:07:22,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 103 transitions, 465 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 07:07:22,526 INFO L231 Difference]: Finished difference. Result has 99 places, 89 transitions, 310 flow [2023-11-29 07:07:22,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=310, PETRI_PLACES=99, PETRI_TRANSITIONS=89} [2023-11-29 07:07:22,527 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -31 predicate places. [2023-11-29 07:07:22,527 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 89 transitions, 310 flow [2023-11-29 07:07:22,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2023-11-29 07:07:22,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:07:22,527 INFO L208 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] [2023-11-29 07:07:22,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-11-29 07:07:22,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:22,727 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:07:22,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:22,728 INFO L85 PathProgramCache]: Analyzing trace with hash -289425989, now seen corresponding path program 1 times [2023-11-29 07:07:22,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:07:22,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407843449] [2023-11-29 07:07:22,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:22,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:22,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:07:22,729 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:07:22,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-11-29 07:07:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:23,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:07:23,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:23,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:07:23,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:07:23,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:07:23,166 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:07:23,167 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:07:23,168 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 [2023-11-29 07:07:23,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:07:23,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:23,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:07:23,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407843449] [2023-11-29 07:07:23,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407843449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:23,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:23,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:07:23,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16537732] [2023-11-29 07:07:23,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:23,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:07:23,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:07:23,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:07:23,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:07:23,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 136 [2023-11-29 07:07:23,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 89 transitions, 310 flow. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2023-11-29 07:07:23,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:07:23,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 136 [2023-11-29 07:07:23,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:07:24,112 INFO L124 PetriNetUnfolderBase]: 481/953 cut-off events. [2023-11-29 07:07:24,112 INFO L125 PetriNetUnfolderBase]: For 658/658 co-relation queries the response was YES. [2023-11-29 07:07:24,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2662 conditions, 953 events. 481/953 cut-off events. For 658/658 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4002 event pairs, 395 based on Foata normal form. 13/961 useless extension candidates. Maximal degree in co-relation 2649. Up to 801 conditions per place. [2023-11-29 07:07:24,116 INFO L140 encePairwiseOnDemand]: 130/136 looper letters, 69 selfloop transitions, 10 changer transitions 0/102 dead transitions. [2023-11-29 07:07:24,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 102 transitions, 531 flow [2023-11-29 07:07:24,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:07:24,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 07:07:24,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2023-11-29 07:07:24,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5318627450980392 [2023-11-29 07:07:24,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 217 transitions. [2023-11-29 07:07:24,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 217 transitions. [2023-11-29 07:07:24,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:07:24,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 217 transitions. [2023-11-29 07:07:24,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2023-11-29 07:07:24,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:07:24,120 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2023-11-29 07:07:24,120 INFO L175 Difference]: Start difference. First operand has 99 places, 89 transitions, 310 flow. Second operand 3 states and 217 transitions. [2023-11-29 07:07:24,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 102 transitions, 531 flow [2023-11-29 07:07:24,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 102 transitions, 521 flow, removed 5 selfloop flow, removed 0 redundant places. [2023-11-29 07:07:24,124 INFO L231 Difference]: Finished difference. Result has 103 places, 94 transitions, 384 flow [2023-11-29 07:07:24,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=384, PETRI_PLACES=103, PETRI_TRANSITIONS=94} [2023-11-29 07:07:24,125 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -27 predicate places. [2023-11-29 07:07:24,125 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 94 transitions, 384 flow [2023-11-29 07:07:24,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2023-11-29 07:07:24,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:07:24,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:24,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-11-29 07:07:24,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:24,326 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:07:24,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:24,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1671366550, now seen corresponding path program 1 times [2023-11-29 07:07:24,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:07:24,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1247940779] [2023-11-29 07:07:24,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:24,327 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:24,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:07:24,328 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:07:24,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-11-29 07:07:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:24,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 07:07:24,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:24,849 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 [2023-11-29 07:07:24,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:07:24,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:07:24,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:07:24,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1247940779] [2023-11-29 07:07:24,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1247940779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:07:24,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:07:24,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 07:07:24,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705758960] [2023-11-29 07:07:24,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:07:24,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:07:24,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:07:24,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:07:24,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:07:24,904 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 136 [2023-11-29 07:07:24,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 94 transitions, 384 flow. Second operand has 8 states, 8 states have (on average 58.125) internal successors, (465), 8 states have internal predecessors, (465), 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) [2023-11-29 07:07:24,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:07:24,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 136 [2023-11-29 07:07:24,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:07:26,359 INFO L124 PetriNetUnfolderBase]: 947/1974 cut-off events. [2023-11-29 07:07:26,359 INFO L125 PetriNetUnfolderBase]: For 1807/1807 co-relation queries the response was YES. [2023-11-29 07:07:26,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5548 conditions, 1974 events. 947/1974 cut-off events. For 1807/1807 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 11312 event pairs, 131 based on Foata normal form. 16/1985 useless extension candidates. Maximal degree in co-relation 5533. Up to 541 conditions per place. [2023-11-29 07:07:26,367 INFO L140 encePairwiseOnDemand]: 126/136 looper letters, 166 selfloop transitions, 26 changer transitions 0/218 dead transitions. [2023-11-29 07:07:26,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 218 transitions, 1326 flow [2023-11-29 07:07:26,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:07:26,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 07:07:26,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 814 transitions. [2023-11-29 07:07:26,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4987745098039216 [2023-11-29 07:07:26,368 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 814 transitions. [2023-11-29 07:07:26,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 814 transitions. [2023-11-29 07:07:26,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:07:26,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 814 transitions. [2023-11-29 07:07:26,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 67.83333333333333) internal successors, (814), 12 states have internal predecessors, (814), 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) [2023-11-29 07:07:26,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 136.0) internal successors, (1768), 13 states have internal predecessors, (1768), 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) [2023-11-29 07:07:26,372 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 136.0) internal successors, (1768), 13 states have internal predecessors, (1768), 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) [2023-11-29 07:07:26,372 INFO L175 Difference]: Start difference. First operand has 103 places, 94 transitions, 384 flow. Second operand 12 states and 814 transitions. [2023-11-29 07:07:26,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 218 transitions, 1326 flow [2023-11-29 07:07:26,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 218 transitions, 1282 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-29 07:07:26,381 INFO L231 Difference]: Finished difference. Result has 119 places, 111 transitions, 559 flow [2023-11-29 07:07:26,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=559, PETRI_PLACES=119, PETRI_TRANSITIONS=111} [2023-11-29 07:07:26,382 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -11 predicate places. [2023-11-29 07:07:26,382 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 111 transitions, 559 flow [2023-11-29 07:07:26,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 58.125) internal successors, (465), 8 states have internal predecessors, (465), 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) [2023-11-29 07:07:26,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:07:26,383 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:26,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-11-29 07:07:26,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:26,583 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (and 60 more)] === [2023-11-29 07:07:26,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:26,583 INFO L85 PathProgramCache]: Analyzing trace with hash -867609020, now seen corresponding path program 2 times [2023-11-29 07:07:26,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:07:26,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596590770] [2023-11-29 07:07:26,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:07:26,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:26,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:07:26,585 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 07:07:26,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-11-29 07:07:27,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 07:07:27,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-29 07:07:27,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 07:07:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:07:27,335 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 07:07:27,335 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 07:07:27,336 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK (62 of 63 remaining) [2023-11-29 07:07:27,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 63 remaining) [2023-11-29 07:07:27,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 63 remaining) [2023-11-29 07:07:27,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (59 of 63 remaining) [2023-11-29 07:07:27,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 63 remaining) [2023-11-29 07:07:27,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 63 remaining) [2023-11-29 07:07:27,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 63 remaining) [2023-11-29 07:07:27,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 63 remaining) [2023-11-29 07:07:27,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 63 remaining) [2023-11-29 07:07:27,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 63 remaining) [2023-11-29 07:07:27,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 63 remaining) [2023-11-29 07:07:27,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 63 remaining) [2023-11-29 07:07:27,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 63 remaining) [2023-11-29 07:07:27,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 63 remaining) [2023-11-29 07:07:27,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 63 remaining) [2023-11-29 07:07:27,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 63 remaining) [2023-11-29 07:07:27,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 63 remaining) [2023-11-29 07:07:27,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 63 remaining) [2023-11-29 07:07:27,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 63 remaining) [2023-11-29 07:07:27,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 63 remaining) [2023-11-29 07:07:27,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 63 remaining) [2023-11-29 07:07:27,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 63 remaining) [2023-11-29 07:07:27,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 63 remaining) [2023-11-29 07:07:27,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 63 remaining) [2023-11-29 07:07:27,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 63 remaining) [2023-11-29 07:07:27,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 63 remaining) [2023-11-29 07:07:27,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 63 remaining) [2023-11-29 07:07:27,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 63 remaining) [2023-11-29 07:07:27,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK (34 of 63 remaining) [2023-11-29 07:07:27,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 63 remaining) [2023-11-29 07:07:27,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 63 remaining) [2023-11-29 07:07:27,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK (31 of 63 remaining) [2023-11-29 07:07:27,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 63 remaining) [2023-11-29 07:07:27,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 63 remaining) [2023-11-29 07:07:27,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK (28 of 63 remaining) [2023-11-29 07:07:27,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 63 remaining) [2023-11-29 07:07:27,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 63 remaining) [2023-11-29 07:07:27,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 63 remaining) [2023-11-29 07:07:27,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 63 remaining) [2023-11-29 07:07:27,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 63 remaining) [2023-11-29 07:07:27,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 63 remaining) [2023-11-29 07:07:27,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK (21 of 63 remaining) [2023-11-29 07:07:27,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK (20 of 63 remaining) [2023-11-29 07:07:27,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 63 remaining) [2023-11-29 07:07:27,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 63 remaining) [2023-11-29 07:07:27,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 63 remaining) [2023-11-29 07:07:27,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 63 remaining) [2023-11-29 07:07:27,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 63 remaining) [2023-11-29 07:07:27,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 63 remaining) [2023-11-29 07:07:27,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 63 remaining) [2023-11-29 07:07:27,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 63 remaining) [2023-11-29 07:07:27,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 63 remaining) [2023-11-29 07:07:27,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 63 remaining) [2023-11-29 07:07:27,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 63 remaining) [2023-11-29 07:07:27,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 63 remaining) [2023-11-29 07:07:27,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 63 remaining) [2023-11-29 07:07:27,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 63 remaining) [2023-11-29 07:07:27,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 63 remaining) [2023-11-29 07:07:27,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 63 remaining) [2023-11-29 07:07:27,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 63 remaining) [2023-11-29 07:07:27,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 63 remaining) [2023-11-29 07:07:27,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 63 remaining) [2023-11-29 07:07:27,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 63 remaining) [2023-11-29 07:07:27,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-11-29 07:07:27,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:07:27,545 INFO L445 BasicCegarLoop]: Path program histogram: [2, 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] [2023-11-29 07:07:27,550 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 07:07:27,551 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 07:07:27,593 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-29 07:07:27,594 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-29 07:07:27,596 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated [2023-11-29 07:07:27,596 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet14 [2023-11-29 07:07:27,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:07:27 BasicIcfg [2023-11-29 07:07:27,608 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 07:07:27,609 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 07:07:27,609 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 07:07:27,609 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 07:07:27,610 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:06:30" (3/4) ... [2023-11-29 07:07:27,611 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 07:07:27,612 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 07:07:27,613 INFO L158 Benchmark]: Toolchain (without parser) took 59186.15ms. Allocated memory was 77.6MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 44.5MB in the beginning and 759.5MB in the end (delta: -715.0MB). Peak memory consumption was 717.9MB. Max. memory is 16.1GB. [2023-11-29 07:07:27,613 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory is still 30.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 07:07:27,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 724.60ms. Allocated memory is still 77.6MB. Free memory was 44.3MB in the beginning and 35.1MB in the end (delta: 9.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 07:07:27,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.00ms. Allocated memory is still 77.6MB. Free memory was 34.7MB in the beginning and 31.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 07:07:27,615 INFO L158 Benchmark]: Boogie Preprocessor took 97.27ms. Allocated memory is still 77.6MB. Free memory was 31.7MB in the beginning and 50.5MB in the end (delta: -18.9MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2023-11-29 07:07:27,615 INFO L158 Benchmark]: RCFGBuilder took 1161.88ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 50.5MB in the beginning and 35.8MB in the end (delta: 14.7MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2023-11-29 07:07:27,615 INFO L158 Benchmark]: TraceAbstraction took 57129.35ms. Allocated memory was 94.4MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 35.2MB in the beginning and 760.6MB in the end (delta: -725.3MB). Peak memory consumption was 688.7MB. Max. memory is 16.1GB. [2023-11-29 07:07:27,616 INFO L158 Benchmark]: Witness Printer took 3.78ms. Allocated memory is still 1.5GB. Free memory was 760.6MB in the beginning and 759.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 07:07:27,618 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory is still 30.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 724.60ms. Allocated memory is still 77.6MB. Free memory was 44.3MB in the beginning and 35.1MB in the end (delta: 9.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.00ms. Allocated memory is still 77.6MB. Free memory was 34.7MB in the beginning and 31.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.27ms. Allocated memory is still 77.6MB. Free memory was 31.7MB in the beginning and 50.5MB in the end (delta: -18.9MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1161.88ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 50.5MB in the beginning and 35.8MB in the end (delta: 14.7MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * TraceAbstraction took 57129.35ms. Allocated memory was 94.4MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 35.2MB in the beginning and 760.6MB in the end (delta: -725.3MB). Peak memory consumption was 688.7MB. Max. memory is 16.1GB. * Witness Printer took 3.78ms. Allocated memory is still 1.5GB. Free memory was 760.6MB in the beginning and 759.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet14 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 large string literal at line 3883, overapproximation of memtrack at line 3883. Possible FailurePath: [L3888] 0 pthread_t t1,t2; [L3888] 0 pthread_t t1,t2; [L3888] 0 pthread_t t1,t2; [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={3:0}, t2={4:0}] [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 [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [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 { 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 [arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L3910] EXPR 1 data->shared.b [L3910] 1 int lb = data->shared.b; [L3913] 1 data->shared.b = lb + 1 VAL [arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1={3:0}, t2={4:0}] [L3916] 1 return 0; [L3930] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\result={0:0}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, lb=0, res=0, t1={3:0}, t2={4:0}] [L3931] 0 return 0; VAL [\result=0, \result={0:0}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, lb=0, res=0, t1={3:0}, t2={4:0}] [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 { 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 [\result={0:0}, arg={5:24}, arg={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, lb=0, status={7:0}, t1={3:0}, t2={4:0}] [L3938] 0 \read(t1) VAL [\result={0:0}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1={3:0}, t2={4:0}] [L3938] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, arg={5:24}, arg={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, lb=0, status={7:0}, t1={3:0}, t2={4:0}] [L3941] 0 data->shared.a = 3 VAL [\result={0:0}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1={3:0}, t2={4:0}] [L3944] 0 data->shared.b = 3 VAL [\result={0:0}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1={3:0}, t2={4:0}] [L3907] 2 data->shared.a = 1 VAL [\result={0:0}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1={3:0}, t2={4:0}] [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 [\result={0:0}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1={3:0}, t2={4:0}] - 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: -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: 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: -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, 143 locations, 63 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: 56.9s, OverallIterations: 27, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 42.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4159 SdHoareTripleChecker+Valid, 23.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3189 mSDsluCounter, 271 SdHoareTripleChecker+Invalid, 20.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 163 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 119 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7662 IncrementalHoareTripleChecker+Invalid, 7944 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 119 mSolverCounterUnsat, 213 mSDtfsCounter, 7662 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 405 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1377occurred in iteration=18, InterpolantAutomatonStates: 130, 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: 0.4s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 430 NumberOfCodeBlocks, 430 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 373 ConstructedInterpolants, 6 QuantifiedInterpolants, 2804 SizeOfPredicates, 127 NumberOfNonLiveVariables, 4385 ConjunctsInSsa, 246 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 07:07:27,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92633327-fc99-4832-9df0-3663a22de10d/bin/uautomizer-verify-BQ2R08f2Ya/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