./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a 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_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU --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 ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:35,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:35,463 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 21:59:35,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:35,469 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:35,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:35,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:35,511 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:35,511 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:35,512 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:35,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:35,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:35,514 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:35,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:35,517 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:35,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:35,518 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:35,518 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:35,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:35,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:35,519 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 21:59:35,523 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 21:59:35,524 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 21:59:35,524 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:35,524 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 21:59:35,524 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:35,525 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:35,525 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:35,525 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:35,526 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:35,526 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:35,526 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:59:35,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:35,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:35,529 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:35,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:35,530 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:35,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:35,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:35,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:35,531 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:35,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:35,532 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_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 [2024-10-31 21:59:35,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:35,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:35,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:35,849 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:35,850 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:35,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i Unable to find full path for "g++" [2024-10-31 21:59:38,050 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:38,384 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:38,385 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2024-10-31 21:59:38,412 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/data/47d2e3fdf/1145efe378f542ad94610a198a907572/FLAGf37f7d66e [2024-10-31 21:59:38,625 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/data/47d2e3fdf/1145efe378f542ad94610a198a907572 [2024-10-31 21:59:38,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:38,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:38,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:38,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:38,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:38,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:38" (1/1) ... [2024-10-31 21:59:38,648 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f38eb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:38, skipping insertion in model container [2024-10-31 21:59:38,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:38" (1/1) ... [2024-10-31 21:59:38,781 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:39,687 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:39,687 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:39,688 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:39,690 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:39,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:39,819 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-10-31 21:59:39,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@605ce37c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:39, skipping insertion in model container [2024-10-31 21:59:39,820 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:39,821 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-31 21:59:39,824 INFO L158 Benchmark]: Toolchain (without parser) took 1189.44ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 81.4MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 21:59:39,825 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 85.2MB in the end (delta: 142.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:59:39,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1183.79ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 81.4MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 21:59:39,829 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 85.2MB in the end (delta: 142.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1183.79ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 81.4MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1044]: 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_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU --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 ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:42,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:42,302 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-31 21:59:42,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:42,311 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:42,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:42,355 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:42,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:42,356 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:42,358 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:42,359 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:42,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:42,360 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:42,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:42,361 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:42,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:42,362 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:42,366 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:42,366 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:42,367 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:42,367 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 21:59:42,368 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 21:59:42,369 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 21:59:42,369 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:42,369 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 21:59:42,370 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 21:59:42,370 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:42,371 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 21:59:42,371 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:42,371 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:42,373 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:42,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:42,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:42,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:59:42,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:42,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:42,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:42,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:42,376 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 21:59:42,377 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 21:59:42,377 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:42,378 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:42,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:42,379 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:42,379 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 21:59:42,380 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_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 [2024-10-31 21:59:42,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:42,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:42,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:42,795 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:42,796 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:42,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i Unable to find full path for "g++" [2024-10-31 21:59:44,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:45,334 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:45,335 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2024-10-31 21:59:45,351 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/data/dfa54c506/e77337b1fb294dc5891cb402a2577da8/FLAG477a41255 [2024-10-31 21:59:45,374 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/data/dfa54c506/e77337b1fb294dc5891cb402a2577da8 [2024-10-31 21:59:45,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:45,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:45,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:45,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:45,391 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:45,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15138d91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45, skipping insertion in model container [2024-10-31 21:59:45,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,464 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:46,241 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:46,242 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:46,242 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:46,243 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:46,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:46,355 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-31 21:59:46,388 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:46,434 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:46,435 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:46,435 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:46,436 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:46,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:46,485 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:46,536 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:46,537 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:46,538 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:46,539 WARN L1657 CHandler]: Possible shadowing of function new [2024-10-31 21:59:46,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:46,656 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:46,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:46 WrapperNode [2024-10-31 21:59:46,657 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:46,658 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:46,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:46,659 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:46,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:46" (1/1) ... [2024-10-31 21:59:46,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:46" (1/1) ... [2024-10-31 21:59:46,757 INFO L138 Inliner]: procedures = 283, calls = 120, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 264 [2024-10-31 21:59:46,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:46,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:46,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:46,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:46,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:46" (1/1) ... [2024-10-31 21:59:46,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:46" (1/1) ... [2024-10-31 21:59:46,795 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:46" (1/1) ... [2024-10-31 21:59:46,836 INFO L175 MemorySlicer]: Split 96 memory accesses to 4 slices as follows [2, 5, 87, 2]. 91 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 5, 70, 0]. The 12 writes are split as follows [0, 0, 11, 1]. [2024-10-31 21:59:46,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:46" (1/1) ... [2024-10-31 21:59:46,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:46" (1/1) ... [2024-10-31 21:59:46,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:46" (1/1) ... [2024-10-31 21:59:46,882 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:46" (1/1) ... [2024-10-31 21:59:46,889 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:46" (1/1) ... [2024-10-31 21:59:46,896 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:46" (1/1) ... [2024-10-31 21:59:46,904 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:46,905 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:46,905 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:46,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:46,910 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:46" (1/1) ... [2024-10-31 21:59:46,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:46,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:46,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:46,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-31 21:59:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-31 21:59:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-31 21:59:47,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-31 21:59:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 21:59:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 21:59:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 21:59:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 21:59:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-31 21:59:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:59:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-31 21:59:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-31 21:59:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-31 21:59:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-31 21:59:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-31 21:59:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-31 21:59:47,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-31 21:59:47,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-31 21:59:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 21:59:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-31 21:59:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-31 21:59:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-31 21:59:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-10-31 21:59:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-10-31 21:59:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-10-31 21:59:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-10-31 21:59:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 21:59:47,014 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 21:59:47,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 21:59:47,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:47,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 21:59:47,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 21:59:47,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 21:59:47,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-31 21:59:47,017 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 21:59:47,017 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 21:59:47,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:47,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:47,020 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 21:59:47,276 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:47,278 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:48,421 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:59:48,422 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:50,379 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:50,379 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-31 21:59:50,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:50 BoogieIcfgContainer [2024-10-31 21:59:50,381 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:50,384 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:50,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:50,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:50,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:45" (1/3) ... [2024-10-31 21:59:50,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7be47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:50, skipping insertion in model container [2024-10-31 21:59:50,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:46" (2/3) ... [2024-10-31 21:59:50,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7be47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:50, skipping insertion in model container [2024-10-31 21:59:50,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:50" (3/3) ... [2024-10-31 21:59:50,392 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2024-10-31 21:59:50,412 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:50,412 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2024-10-31 21:59:50,413 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:59:50,511 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 21:59:50,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 121 transitions, 249 flow [2024-10-31 21:59:50,629 INFO L124 PetriNetUnfolderBase]: 18/133 cut-off events. [2024-10-31 21:59:50,630 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 21:59:50,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 133 events. 18/133 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 494 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 82. Up to 4 conditions per place. [2024-10-31 21:59:50,634 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 121 transitions, 249 flow [2024-10-31 21:59:50,640 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 121 transitions, 249 flow [2024-10-31 21:59:50,654 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:50,665 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2375956a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:50,665 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-10-31 21:59:50,684 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:59:50,687 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-10-31 21:59:50,687 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:50,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:50,689 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-31 21:59:50,690 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-10-31 21:59:50,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:50,695 INFO L85 PathProgramCache]: Analyzing trace with hash 698246, now seen corresponding path program 1 times [2024-10-31 21:59:50,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 21:59:50,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846370209] [2024-10-31 21:59:50,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:50,715 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:50,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 21:59:50,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 21:59:50,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-31 21:59:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:50,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 21:59:50,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:51,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:51,081 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:51,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 21:59:51,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846370209] [2024-10-31 21:59:51,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [846370209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:51,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:51,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:51,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360502359] [2024-10-31 21:59:51,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:51,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:51,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 21:59:51,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:51,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:51,448 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 121 [2024-10-31 21:59:51,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 121 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:51,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:51,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 121 [2024-10-31 21:59:51,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:51,980 INFO L124 PetriNetUnfolderBase]: 125/457 cut-off events. [2024-10-31 21:59:51,981 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 21:59:51,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 733 conditions, 457 events. 125/457 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2343 event pairs, 64 based on Foata normal form. 53/430 useless extension candidates. Maximal degree in co-relation 659. Up to 174 conditions per place. [2024-10-31 21:59:51,986 INFO L140 encePairwiseOnDemand]: 102/121 looper letters, 63 selfloop transitions, 4 changer transitions 0/129 dead transitions. [2024-10-31 21:59:51,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 129 transitions, 399 flow [2024-10-31 21:59:51,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:51,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 21:59:51,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 342 transitions. [2024-10-31 21:59:52,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7066115702479339 [2024-10-31 21:59:52,007 INFO L175 Difference]: Start difference. First operand has 106 places, 121 transitions, 249 flow. Second operand 4 states and 342 transitions. [2024-10-31 21:59:52,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 129 transitions, 399 flow [2024-10-31 21:59:52,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 129 transitions, 399 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:59:52,017 INFO L231 Difference]: Finished difference. Result has 107 places, 106 transitions, 233 flow [2024-10-31 21:59:52,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=107, PETRI_TRANSITIONS=106} [2024-10-31 21:59:52,023 INFO L277 CegarLoopForPetriNet]: 106 programPoint places, 1 predicate places. [2024-10-31 21:59:52,024 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 106 transitions, 233 flow [2024-10-31 21:59:52,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:52,024 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:52,024 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-31 21:59:52,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:52,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:52,226 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-10-31 21:59:52,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:52,226 INFO L85 PathProgramCache]: Analyzing trace with hash 698247, now seen corresponding path program 1 times [2024-10-31 21:59:52,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 21:59:52,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219321295] [2024-10-31 21:59:52,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:52,228 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:52,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 21:59:52,231 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 21:59:52,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-31 21:59:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:52,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 21:59:52,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:52,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:52,530 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:52,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 21:59:52,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219321295] [2024-10-31 21:59:52,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219321295] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:52,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:52,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:52,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249970633] [2024-10-31 21:59:52,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:52,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:52,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 21:59:52,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:52,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:52,917 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 121 [2024-10-31 21:59:52,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 106 transitions, 233 flow. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:52,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:52,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 121 [2024-10-31 21:59:52,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:53,377 INFO L124 PetriNetUnfolderBase]: 127/504 cut-off events. [2024-10-31 21:59:53,377 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-10-31 21:59:53,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 840 conditions, 504 events. 127/504 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2568 event pairs, 105 based on Foata normal form. 3/421 useless extension candidates. Maximal degree in co-relation 744. Up to 271 conditions per place. [2024-10-31 21:59:53,382 INFO L140 encePairwiseOnDemand]: 113/121 looper letters, 44 selfloop transitions, 5 changer transitions 0/110 dead transitions. [2024-10-31 21:59:53,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 110 transitions, 345 flow [2024-10-31 21:59:53,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:53,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 21:59:53,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 304 transitions. [2024-10-31 21:59:53,386 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.628099173553719 [2024-10-31 21:59:53,386 INFO L175 Difference]: Start difference. First operand has 107 places, 106 transitions, 233 flow. Second operand 4 states and 304 transitions. [2024-10-31 21:59:53,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 110 transitions, 345 flow [2024-10-31 21:59:53,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 110 transitions, 333 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 21:59:53,391 INFO L231 Difference]: Finished difference. Result has 109 places, 110 transitions, 266 flow [2024-10-31 21:59:53,392 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=109, PETRI_TRANSITIONS=110} [2024-10-31 21:59:53,393 INFO L277 CegarLoopForPetriNet]: 106 programPoint places, 3 predicate places. [2024-10-31 21:59:53,393 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 110 transitions, 266 flow [2024-10-31 21:59:53,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:53,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:53,394 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 21:59:53,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:53,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:53,598 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-10-31 21:59:53,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:53,599 INFO L85 PathProgramCache]: Analyzing trace with hash -672734423, now seen corresponding path program 1 times [2024-10-31 21:59:53,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 21:59:53,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582545737] [2024-10-31 21:59:53,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:53,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:53,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 21:59:53,604 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 21:59:53,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-31 21:59:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:53,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 21:59:53,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:53,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-31 21:59:53,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:53,862 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:53,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 21:59:53,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582545737] [2024-10-31 21:59:53,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582545737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:53,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:53,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:53,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112723413] [2024-10-31 21:59:53,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:53,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:53,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 21:59:53,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:53,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:54,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 121 [2024-10-31 21:59:54,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 110 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:54,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:54,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 121 [2024-10-31 21:59:54,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:54,337 INFO L124 PetriNetUnfolderBase]: 127/503 cut-off events. [2024-10-31 21:59:54,338 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-31 21:59:54,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 503 events. 127/503 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2560 event pairs, 105 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 792. Up to 267 conditions per place. [2024-10-31 21:59:54,343 INFO L140 encePairwiseOnDemand]: 118/121 looper letters, 42 selfloop transitions, 3 changer transitions 0/109 dead transitions. [2024-10-31 21:59:54,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 109 transitions, 354 flow [2024-10-31 21:59:54,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:54,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:54,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2024-10-31 21:59:54,349 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6611570247933884 [2024-10-31 21:59:54,350 INFO L175 Difference]: Start difference. First operand has 109 places, 110 transitions, 266 flow. Second operand 3 states and 240 transitions. [2024-10-31 21:59:54,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 109 transitions, 354 flow [2024-10-31 21:59:54,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 109 transitions, 351 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 21:59:54,357 INFO L231 Difference]: Finished difference. Result has 109 places, 109 transitions, 267 flow [2024-10-31 21:59:54,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=107, 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=267, PETRI_PLACES=109, PETRI_TRANSITIONS=109} [2024-10-31 21:59:54,360 INFO L277 CegarLoopForPetriNet]: 106 programPoint places, 3 predicate places. [2024-10-31 21:59:54,360 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 109 transitions, 267 flow [2024-10-31 21:59:54,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:54,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:54,361 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 21:59:54,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:54,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:54,562 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-10-31 21:59:54,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:54,563 INFO L85 PathProgramCache]: Analyzing trace with hash -672734422, now seen corresponding path program 1 times [2024-10-31 21:59:54,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 21:59:54,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62941794] [2024-10-31 21:59:54,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:54,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:54,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 21:59:54,571 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 21:59:54,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-31 21:59:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:54,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:54,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:54,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-31 21:59:54,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:54,827 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:54,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 21:59:54,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62941794] [2024-10-31 21:59:54,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62941794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:54,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:54,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:54,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304481463] [2024-10-31 21:59:54,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:54,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:54,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 21:59:54,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:54,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:55,009 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 121 [2024-10-31 21:59:55,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 109 transitions, 267 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:55,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:55,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 121 [2024-10-31 21:59:55,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:55,364 INFO L124 PetriNetUnfolderBase]: 127/502 cut-off events. [2024-10-31 21:59:55,365 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-10-31 21:59:55,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 502 events. 127/502 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2553 event pairs, 105 based on Foata normal form. 0/417 useless extension candidates. Maximal degree in co-relation 791. Up to 267 conditions per place. [2024-10-31 21:59:55,370 INFO L140 encePairwiseOnDemand]: 118/121 looper letters, 42 selfloop transitions, 3 changer transitions 0/108 dead transitions. [2024-10-31 21:59:55,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 108 transitions, 355 flow [2024-10-31 21:59:55,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:55,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:55,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2024-10-31 21:59:55,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6611570247933884 [2024-10-31 21:59:55,378 INFO L175 Difference]: Start difference. First operand has 109 places, 109 transitions, 267 flow. Second operand 3 states and 240 transitions. [2024-10-31 21:59:55,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 108 transitions, 355 flow [2024-10-31 21:59:55,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 108 transitions, 349 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:55,382 INFO L231 Difference]: Finished difference. Result has 108 places, 108 transitions, 265 flow [2024-10-31 21:59:55,386 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=265, PETRI_PLACES=108, PETRI_TRANSITIONS=108} [2024-10-31 21:59:55,387 INFO L277 CegarLoopForPetriNet]: 106 programPoint places, 2 predicate places. [2024-10-31 21:59:55,387 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 108 transitions, 265 flow [2024-10-31 21:59:55,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:55,387 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:55,387 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:55,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-31 21:59:55,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:55,588 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-10-31 21:59:55,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:55,589 INFO L85 PathProgramCache]: Analyzing trace with hash 620070097, now seen corresponding path program 1 times [2024-10-31 21:59:55,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 21:59:55,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525006175] [2024-10-31 21:59:55,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:55,590 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:55,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 21:59:55,593 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 21:59:55,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-31 21:59:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:55,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 21:59:55,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:55,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-31 21:59:55,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:55,872 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:55,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 21:59:55,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525006175] [2024-10-31 21:59:55,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525006175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:55,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:55,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:55,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722796153] [2024-10-31 21:59:55,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:55,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:55,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 21:59:55,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:55,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:56,130 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 121 [2024-10-31 21:59:56,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 108 transitions, 265 flow. Second operand has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:56,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:56,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 121 [2024-10-31 21:59:56,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:56,551 INFO L124 PetriNetUnfolderBase]: 127/500 cut-off events. [2024-10-31 21:59:56,551 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-31 21:59:56,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 500 events. 127/500 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2545 event pairs, 105 based on Foata normal form. 2/419 useless extension candidates. Maximal degree in co-relation 789. Up to 269 conditions per place. [2024-10-31 21:59:56,555 INFO L140 encePairwiseOnDemand]: 116/121 looper letters, 43 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2024-10-31 21:59:56,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 106 transitions, 355 flow [2024-10-31 21:59:56,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:56,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 21:59:56,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 293 transitions. [2024-10-31 21:59:56,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6053719008264463 [2024-10-31 21:59:56,560 INFO L175 Difference]: Start difference. First operand has 108 places, 108 transitions, 265 flow. Second operand 4 states and 293 transitions. [2024-10-31 21:59:56,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 106 transitions, 355 flow [2024-10-31 21:59:56,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 106 transitions, 349 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:56,563 INFO L231 Difference]: Finished difference. Result has 107 places, 106 transitions, 263 flow [2024-10-31 21:59:56,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=263, PETRI_PLACES=107, PETRI_TRANSITIONS=106} [2024-10-31 21:59:56,566 INFO L277 CegarLoopForPetriNet]: 106 programPoint places, 1 predicate places. [2024-10-31 21:59:56,567 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 106 transitions, 263 flow [2024-10-31 21:59:56,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:56,567 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:56,568 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:56,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-10-31 21:59:56,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:56,771 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-10-31 21:59:56,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:56,772 INFO L85 PathProgramCache]: Analyzing trace with hash 620070096, now seen corresponding path program 1 times [2024-10-31 21:59:56,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 21:59:56,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457450079] [2024-10-31 21:59:56,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:56,773 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:56,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 21:59:56,774 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 21:59:56,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-31 21:59:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:56,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 21:59:56,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:56,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-31 21:59:56,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:56,991 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:56,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 21:59:56,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457450079] [2024-10-31 21:59:56,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457450079] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:56,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:56,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:56,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819134773] [2024-10-31 21:59:56,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:56,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:56,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 21:59:56,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:56,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:57,148 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 121 [2024-10-31 21:59:57,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 106 transitions, 263 flow. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:57,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:57,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 121 [2024-10-31 21:59:57,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:57,476 INFO L124 PetriNetUnfolderBase]: 127/498 cut-off events. [2024-10-31 21:59:57,477 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 21:59:57,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 498 events. 127/498 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2534 event pairs, 105 based on Foata normal form. 1/417 useless extension candidates. Maximal degree in co-relation 790. Up to 267 conditions per place. [2024-10-31 21:59:57,480 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 40 selfloop transitions, 7 changer transitions 0/104 dead transitions. [2024-10-31 21:59:57,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 104 transitions, 353 flow [2024-10-31 21:59:57,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:57,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:59:57,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 345 transitions. [2024-10-31 21:59:57,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5702479338842975 [2024-10-31 21:59:57,482 INFO L175 Difference]: Start difference. First operand has 107 places, 106 transitions, 263 flow. Second operand 5 states and 345 transitions. [2024-10-31 21:59:57,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 104 transitions, 353 flow [2024-10-31 21:59:57,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 104 transitions, 345 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 21:59:57,486 INFO L231 Difference]: Finished difference. Result has 106 places, 104 transitions, 265 flow [2024-10-31 21:59:57,486 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=265, PETRI_PLACES=106, PETRI_TRANSITIONS=104} [2024-10-31 21:59:57,487 INFO L277 CegarLoopForPetriNet]: 106 programPoint places, 0 predicate places. [2024-10-31 21:59:57,487 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 104 transitions, 265 flow [2024-10-31 21:59:57,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:57,487 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:57,487 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2024-10-31 21:59:57,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-10-31 21:59:57,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:57,692 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-10-31 21:59:57,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:57,692 INFO L85 PathProgramCache]: Analyzing trace with hash 620071633, now seen corresponding path program 1 times [2024-10-31 21:59:57,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 21:59:57,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952593133] [2024-10-31 21:59:57,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:57,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:57,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 21:59:57,697 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 21:59:57,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-31 21:59:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:57,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:59:57,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:57,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:57,905 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:57,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 21:59:57,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952593133] [2024-10-31 21:59:57,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952593133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:57,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:57,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:57,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323567375] [2024-10-31 21:59:57,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:57,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:57,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 21:59:57,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:57,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:57,908 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 121 [2024-10-31 21:59:57,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 104 transitions, 265 flow. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:57,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:57,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 121 [2024-10-31 21:59:57,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:58,204 INFO L124 PetriNetUnfolderBase]: 126/516 cut-off events. [2024-10-31 21:59:58,204 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-31 21:59:58,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851 conditions, 516 events. 126/516 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2560 event pairs, 105 based on Foata normal form. 2/428 useless extension candidates. Maximal degree in co-relation 817. Up to 267 conditions per place. [2024-10-31 21:59:58,208 INFO L140 encePairwiseOnDemand]: 118/121 looper letters, 46 selfloop transitions, 3 changer transitions 0/108 dead transitions. [2024-10-31 21:59:58,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 108 transitions, 377 flow [2024-10-31 21:59:58,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:58,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:58,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2024-10-31 21:59:58,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6831955922865014 [2024-10-31 21:59:58,210 INFO L175 Difference]: Start difference. First operand has 106 places, 104 transitions, 265 flow. Second operand 3 states and 248 transitions. [2024-10-31 21:59:58,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 108 transitions, 377 flow [2024-10-31 21:59:58,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 108 transitions, 357 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 21:59:58,234 INFO L231 Difference]: Finished difference. Result has 105 places, 104 transitions, 262 flow [2024-10-31 21:59:58,234 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=105, PETRI_TRANSITIONS=104} [2024-10-31 21:59:58,236 INFO L277 CegarLoopForPetriNet]: 106 programPoint places, -1 predicate places. [2024-10-31 21:59:58,236 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 104 transitions, 262 flow [2024-10-31 21:59:58,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:58,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:58,237 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:58,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-10-31 21:59:58,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:58,438 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-10-31 21:59:58,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:58,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1113068960, now seen corresponding path program 1 times [2024-10-31 21:59:58,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 21:59:58,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654257155] [2024-10-31 21:59:58,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:58,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 21:59:58,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 21:59:58,444 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 21:59:58,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-31 21:59:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 21:59:59,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:59,446 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-10-31 21:59:59,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2024-10-31 21:59:59,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:59,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:59,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 21:59:59,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654257155] [2024-10-31 21:59:59,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654257155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:59,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:59,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:59,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984135255] [2024-10-31 21:59:59,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:59,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:59,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 21:59:59,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:59,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:59,763 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 121 [2024-10-31 21:59:59,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 104 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 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) [2024-10-31 21:59:59,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:59,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 121 [2024-10-31 21:59:59,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:00,214 INFO L124 PetriNetUnfolderBase]: 125/470 cut-off events. [2024-10-31 22:00:00,215 INFO L125 PetriNetUnfolderBase]: For 31/32 co-relation queries the response was YES. [2024-10-31 22:00:00,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 804 conditions, 470 events. 125/470 cut-off events. For 31/32 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2295 event pairs, 64 based on Foata normal form. 3/396 useless extension candidates. Maximal degree in co-relation 771. Up to 177 conditions per place. [2024-10-31 22:00:00,218 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 64 selfloop transitions, 5 changer transitions 0/125 dead transitions. [2024-10-31 22:00:00,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 125 transitions, 442 flow [2024-10-31 22:00:00,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:00,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:00:00,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 323 transitions. [2024-10-31 22:00:00,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6673553719008265 [2024-10-31 22:00:00,220 INFO L175 Difference]: Start difference. First operand has 105 places, 104 transitions, 262 flow. Second operand 4 states and 323 transitions. [2024-10-31 22:00:00,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 125 transitions, 442 flow [2024-10-31 22:00:00,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 125 transitions, 439 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:00,224 INFO L231 Difference]: Finished difference. Result has 105 places, 102 transitions, 265 flow [2024-10-31 22:00:00,224 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=265, PETRI_PLACES=105, PETRI_TRANSITIONS=102} [2024-10-31 22:00:00,225 INFO L277 CegarLoopForPetriNet]: 106 programPoint places, -1 predicate places. [2024-10-31 22:00:00,225 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 102 transitions, 265 flow [2024-10-31 22:00:00,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 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) [2024-10-31 22:00:00,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:00,226 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:00,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -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)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:00,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:00:00,426 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-10-31 22:00:00,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:00,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1113068959, now seen corresponding path program 1 times [2024-10-31 22:00:00,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:00:00,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581047284] [2024-10-31 22:00:00,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:00,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:00:00,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:00:00,429 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:00:00,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-31 22:00:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:01,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:00:01,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:01,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 22:00:01,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-31 22:00:01,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:01,466 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:00:01,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:00:01,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581047284] [2024-10-31 22:00:01,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581047284] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:01,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:01,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:01,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559509385] [2024-10-31 22:00:01,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:01,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:00:01,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:00:01,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:00:01,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:01,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 121 [2024-10-31 22:00:01,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 102 transitions, 265 flow. Second operand has 5 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:01,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:01,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 121 [2024-10-31 22:00:01,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:02,574 INFO L124 PetriNetUnfolderBase]: 128/543 cut-off events. [2024-10-31 22:00:02,575 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-10-31 22:00:02,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 543 events. 128/543 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2835 event pairs, 106 based on Foata normal form. 2/445 useless extension candidates. Maximal degree in co-relation 836. Up to 278 conditions per place. [2024-10-31 22:00:02,578 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 50 selfloop transitions, 5 changer transitions 0/109 dead transitions. [2024-10-31 22:00:02,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 109 transitions, 405 flow [2024-10-31 22:00:02,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:02,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:00:02,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 310 transitions. [2024-10-31 22:00:02,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.640495867768595 [2024-10-31 22:00:02,581 INFO L175 Difference]: Start difference. First operand has 105 places, 102 transitions, 265 flow. Second operand 4 states and 310 transitions. [2024-10-31 22:00:02,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 109 transitions, 405 flow [2024-10-31 22:00:02,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 109 transitions, 389 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:00:02,585 INFO L231 Difference]: Finished difference. Result has 107 places, 106 transitions, 301 flow [2024-10-31 22:00:02,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=301, PETRI_PLACES=107, PETRI_TRANSITIONS=106} [2024-10-31 22:00:02,608 INFO L277 CegarLoopForPetriNet]: 106 programPoint places, 1 predicate places. [2024-10-31 22:00:02,609 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 106 transitions, 301 flow [2024-10-31 22:00:02,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:02,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:02,610 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:02,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:02,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:00:02,811 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-10-31 22:00:02,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:02,812 INFO L85 PathProgramCache]: Analyzing trace with hash -145398612, now seen corresponding path program 1 times [2024-10-31 22:00:02,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:00:02,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306091176] [2024-10-31 22:00:02,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:02,813 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:00:02,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:00:02,817 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:00:02,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-10-31 22:00:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:03,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-31 22:00:03,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:03,990 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 7 [2024-10-31 22:00:04,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-31 22:00:04,173 INFO L349 Elim1Store]: treesize reduction 17, result has 19.0 percent of original size [2024-10-31 22:00:04,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 16 [2024-10-31 22:00:04,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 32 treesize of output 25 [2024-10-31 22:00:04,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 32 treesize of output 25 [2024-10-31 22:00:04,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 25 treesize of output 18 [2024-10-31 22:00:04,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:04,457 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:00:04,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:00:04,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306091176] [2024-10-31 22:00:04,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306091176] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:04,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:04,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:00:04,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91639260] [2024-10-31 22:00:04,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:04,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:00:04,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:00:04,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:00:04,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:00:06,734 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 121 [2024-10-31 22:00:06,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 106 transitions, 301 flow. Second operand has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:06,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:06,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 121 [2024-10-31 22:00:06,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:08,321 INFO L124 PetriNetUnfolderBase]: 126/498 cut-off events. [2024-10-31 22:00:08,321 INFO L125 PetriNetUnfolderBase]: For 24/25 co-relation queries the response was YES. [2024-10-31 22:00:08,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 888 conditions, 498 events. 126/498 cut-off events. For 24/25 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2564 event pairs, 64 based on Foata normal form. 1/424 useless extension candidates. Maximal degree in co-relation 796. Up to 189 conditions per place. [2024-10-31 22:00:08,325 INFO L140 encePairwiseOnDemand]: 109/121 looper letters, 72 selfloop transitions, 16 changer transitions 0/138 dead transitions. [2024-10-31 22:00:08,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 138 transitions, 549 flow [2024-10-31 22:00:08,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:00:08,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-31 22:00:08,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 686 transitions. [2024-10-31 22:00:08,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5154019534184824 [2024-10-31 22:00:08,329 INFO L175 Difference]: Start difference. First operand has 107 places, 106 transitions, 301 flow. Second operand 11 states and 686 transitions. [2024-10-31 22:00:08,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 138 transitions, 549 flow [2024-10-31 22:00:08,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 138 transitions, 547 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:08,334 INFO L231 Difference]: Finished difference. Result has 121 places, 112 transitions, 380 flow [2024-10-31 22:00:08,334 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=380, PETRI_PLACES=121, PETRI_TRANSITIONS=112} [2024-10-31 22:00:08,335 INFO L277 CegarLoopForPetriNet]: 106 programPoint places, 15 predicate places. [2024-10-31 22:00:08,335 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 112 transitions, 380 flow [2024-10-31 22:00:08,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:08,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:08,336 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:08,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:08,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:00:08,540 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-10-31 22:00:08,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:08,541 INFO L85 PathProgramCache]: Analyzing trace with hash -145398611, now seen corresponding path program 1 times [2024-10-31 22:00:08,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:00:08,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961403992] [2024-10-31 22:00:08,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:08,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:00:08,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:00:08,543 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:00:08,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf50713-4246-4501-9c14-b89d203ef7f6/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -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