./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:39:39,180 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:39:39,231 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:39:39,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:39:39,238 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:39:39,262 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:39:39,262 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:39:39,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:39:39,263 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:39:39,266 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:39:39,266 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:39:39,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:39:39,267 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:39:39,267 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:39:39,267 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:39:39,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:39:39,268 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:39:39,268 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:39:39,268 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:39:39,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:39:39,268 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:39:39,270 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:39:39,271 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:39:39,271 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:39:39,271 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:39:39,271 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:39:39,271 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:39:39,272 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:39:39,272 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:39:39,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:39:39,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:39:39,272 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:39:39,273 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:39:39,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:39:39,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:39:39,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:39:39,273 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:39:39,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:39:39,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:39:39,274 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:39:39,274 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:39:39,275 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:39:39,275 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 [2024-11-09 10:39:39,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:39:39,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:39:39,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:39:39,527 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:39:39,527 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:39:39,528 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2024-11-09 10:39:40,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:39:41,004 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:39:41,004 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2024-11-09 10:39:41,033 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a0f740d6/713314edbe764d2fba43995ee7e26dd7/FLAGfd0f0833f [2024-11-09 10:39:41,322 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a0f740d6/713314edbe764d2fba43995ee7e26dd7 [2024-11-09 10:39:41,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:39:41,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:39:41,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:39:41,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:39:41,337 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:39:41,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:39:41" (1/1) ... [2024-11-09 10:39:41,341 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e5c924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:41, skipping insertion in model container [2024-11-09 10:39:41,341 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:39:41" (1/1) ... [2024-11-09 10:39:41,403 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:39:41,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:39:41,757 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) [2024-11-09 10:39:41,757 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2ff4ecf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:41, skipping insertion in model container [2024-11-09 10:39:41,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:39:41,758 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 10:39:41,760 INFO L158 Benchmark]: Toolchain (without parser) took 432.21ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 71.2MB in the beginning and 164.4MB in the end (delta: -93.2MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-11-09 10:39:41,760 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 146.8MB. Free memory is still 96.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 10:39:41,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.57ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 70.9MB in the beginning and 164.4MB in the end (delta: -93.5MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-11-09 10:39:41,762 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 146.8MB. Free memory is still 96.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 429.57ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 70.9MB in the beginning and 164.4MB in the end (delta: -93.5MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3005]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:39:43,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:39:43,545 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-09 10:39:43,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:39:43,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:39:43,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:39:43,578 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:39:43,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:39:43,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:39:43,580 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:39:43,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:39:43,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:39:43,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:39:43,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:39:43,581 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:39:43,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:39:43,583 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:39:43,583 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:39:43,583 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:39:43,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:39:43,583 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:39:43,586 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:39:43,587 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:39:43,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:39:43,587 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:39:43,587 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 10:39:43,587 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:39:43,587 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 10:39:43,587 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:39:43,588 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:39:43,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:39:43,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:39:43,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:39:43,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:39:43,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:39:43,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:39:43,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:39:43,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:39:43,589 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-09 10:39:43,589 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 10:39:43,589 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:39:43,590 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:39:43,591 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:39:43,591 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:39:43,591 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 [2024-11-09 10:39:43,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:39:43,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:39:43,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:39:43,922 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:39:43,922 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:39:43,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2024-11-09 10:39:45,268 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:39:45,505 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:39:45,507 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2024-11-09 10:39:45,534 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daae9a882/7dd06c40cd864ec5818976fbbd324092/FLAG3606c14f4 [2024-11-09 10:39:45,549 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daae9a882/7dd06c40cd864ec5818976fbbd324092 [2024-11-09 10:39:45,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:39:45,553 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:39:45,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:39:45,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:39:45,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:39:45,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:39:45" (1/1) ... [2024-11-09 10:39:45,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5208f3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:45, skipping insertion in model container [2024-11-09 10:39:45,562 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:39:45" (1/1) ... [2024-11-09 10:39:45,627 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:39:45,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:39:45,936 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 10:39:45,950 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:39:45,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:39:45,987 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:39:46,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:39:46,058 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:39:46,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:46 WrapperNode [2024-11-09 10:39:46,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:39:46,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:39:46,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:39:46,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:39:46,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:46" (1/1) ... [2024-11-09 10:39:46,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:46" (1/1) ... [2024-11-09 10:39:46,108 INFO L138 Inliner]: procedures = 190, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 147 [2024-11-09 10:39:46,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:39:46,109 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:39:46,109 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:39:46,109 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:39:46,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:46" (1/1) ... [2024-11-09 10:39:46,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:46" (1/1) ... [2024-11-09 10:39:46,120 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:46" (1/1) ... [2024-11-09 10:39:46,148 INFO L175 MemorySlicer]: Split 19 memory accesses to 2 slices as follows [5, 14]. 74 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [5, 0]. The 11 writes are split as follows [0, 11]. [2024-11-09 10:39:46,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:46" (1/1) ... [2024-11-09 10:39:46,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:46" (1/1) ... [2024-11-09 10:39:46,165 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:46" (1/1) ... [2024-11-09 10:39:46,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:46" (1/1) ... [2024-11-09 10:39:46,168 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:46" (1/1) ... [2024-11-09 10:39:46,169 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:46" (1/1) ... [2024-11-09 10:39:46,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:39:46,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:39:46,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:39:46,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:39:46,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:46" (1/1) ... [2024-11-09 10:39:46,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:39:46,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:39:46,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 10:39:46,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 10:39:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-09 10:39:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-09 10:39:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 10:39:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 10:39:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:39:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 10:39:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 10:39:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 10:39:46,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 10:39:46,264 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 10:39:46,264 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 10:39:46,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-09 10:39:46,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-09 10:39:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-09 10:39:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-09 10:39:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 10:39:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:39:46,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:39:46,267 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:39:46,414 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:39:46,416 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:39:46,871 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:39:46,871 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:39:47,264 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:39:47,265 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 10:39:47,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:39:47 BoogieIcfgContainer [2024-11-09 10:39:47,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:39:47,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:39:47,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:39:47,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:39:47,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:39:45" (1/3) ... [2024-11-09 10:39:47,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4164c016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:39:47, skipping insertion in model container [2024-11-09 10:39:47,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:39:46" (2/3) ... [2024-11-09 10:39:47,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4164c016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:39:47, skipping insertion in model container [2024-11-09 10:39:47,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:39:47" (3/3) ... [2024-11-09 10:39:47,274 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_06-ptra_nr.i [2024-11-09 10:39:47,288 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:39:47,288 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2024-11-09 10:39:47,288 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:39:47,349 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 10:39:47,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 57 transitions, 118 flow [2024-11-09 10:39:47,411 INFO L124 PetriNetUnfolderBase]: 0/56 cut-off events. [2024-11-09 10:39:47,412 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:39:47,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 56 events. 0/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 123 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-09 10:39:47,414 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 57 transitions, 118 flow [2024-11-09 10:39:47,418 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 56 transitions, 115 flow [2024-11-09 10:39:47,429 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:39:47,446 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;@ecb125b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:39:47,447 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-09 10:39:47,452 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:39:47,452 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2024-11-09 10:39:47,453 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:39:47,453 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:39:47,453 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-09 10:39:47,454 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:39:47,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:39:47,459 INFO L85 PathProgramCache]: Analyzing trace with hash 12779, now seen corresponding path program 1 times [2024-11-09 10:39:47,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:39:47,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74501292] [2024-11-09 10:39:47,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:39:47,471 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 [2024-11-09 10:39:47,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:39:47,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:39:47,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 10:39:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:39:47,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 10:39:47,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:39:47,672 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 [2024-11-09 10:39:47,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:39:47,683 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:39:47,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:39:47,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74501292] [2024-11-09 10:39:47,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74501292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:39:47,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:39:47,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:39:47,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403260734] [2024-11-09 10:39:47,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:39:47,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:39:47,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:39:47,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:39:47,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:39:47,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 57 [2024-11-09 10:39:47,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 115 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-09 10:39:47,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:39:47,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 57 [2024-11-09 10:39:47,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:39:47,927 INFO L124 PetriNetUnfolderBase]: 42/176 cut-off events. [2024-11-09 10:39:47,927 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:39:47,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 176 events. 42/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 748 event pairs, 42 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 256. Up to 101 conditions per place. [2024-11-09 10:39:47,932 INFO L140 encePairwiseOnDemand]: 47/57 looper letters, 18 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2024-11-09 10:39:47,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 50 transitions, 147 flow [2024-11-09 10:39:47,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:39:47,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:39:47,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-11-09 10:39:47,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.672514619883041 [2024-11-09 10:39:47,944 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 115 flow. Second operand 3 states and 115 transitions. [2024-11-09 10:39:47,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 50 transitions, 147 flow [2024-11-09 10:39:47,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 146 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:39:47,948 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 110 flow [2024-11-09 10:39:47,950 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2024-11-09 10:39:47,953 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2024-11-09 10:39:47,953 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 110 flow [2024-11-09 10:39:47,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-09 10:39:47,954 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:39:47,954 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-09 10:39:47,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 10:39:48,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:39:48,155 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:39:48,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:39:48,156 INFO L85 PathProgramCache]: Analyzing trace with hash 12780, now seen corresponding path program 1 times [2024-11-09 10:39:48,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:39:48,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48577586] [2024-11-09 10:39:48,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:39:48,156 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 [2024-11-09 10:39:48,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:39:48,158 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:39:48,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 10:39:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:39:48,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 10:39:48,286 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:39:48,297 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 [2024-11-09 10:39:48,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:39:48,304 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:39:48,304 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:39:48,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48577586] [2024-11-09 10:39:48,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48577586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:39:48,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:39:48,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:39:48,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977213538] [2024-11-09 10:39:48,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:39:48,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:39:48,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:39:48,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:39:48,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:39:48,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 57 [2024-11-09 10:39:48,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-09 10:39:48,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:39:48,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 57 [2024-11-09 10:39:48,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:39:48,494 INFO L124 PetriNetUnfolderBase]: 42/170 cut-off events. [2024-11-09 10:39:48,494 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 10:39:48,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 170 events. 42/170 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 744 event pairs, 42 based on Foata normal form. 5/142 useless extension candidates. Maximal degree in co-relation 260. Up to 101 conditions per place. [2024-11-09 10:39:48,496 INFO L140 encePairwiseOnDemand]: 47/57 looper letters, 15 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2024-11-09 10:39:48,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 44 transitions, 136 flow [2024-11-09 10:39:48,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:39:48,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:39:48,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-11-09 10:39:48,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7076023391812866 [2024-11-09 10:39:48,498 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 110 flow. Second operand 3 states and 121 transitions. [2024-11-09 10:39:48,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 44 transitions, 136 flow [2024-11-09 10:39:48,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 44 transitions, 128 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:39:48,499 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 98 flow [2024-11-09 10:39:48,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=49, PETRI_TRANSITIONS=44} [2024-11-09 10:39:48,500 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -11 predicate places. [2024-11-09 10:39:48,500 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 98 flow [2024-11-09 10:39:48,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-09 10:39:48,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:39:48,501 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 10:39:48,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 10:39:48,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:39:48,704 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:39:48,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:39:48,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1072074424, now seen corresponding path program 1 times [2024-11-09 10:39:48,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:39:48,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814739597] [2024-11-09 10:39:48,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:39:48,706 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 [2024-11-09 10:39:48,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:39:48,707 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:39:48,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 10:39:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:39:48,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 10:39:48,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:39:48,885 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 [2024-11-09 10:39:48,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:39:48,893 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:39:48,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:39:48,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814739597] [2024-11-09 10:39:48,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814739597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:39:48,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:39:48,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:39:48,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380960143] [2024-11-09 10:39:48,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:39:48,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:39:48,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:39:48,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:39:48,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:39:48,977 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 57 [2024-11-09 10:39:48,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 44 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2024-11-09 10:39:48,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:39:48,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 57 [2024-11-09 10:39:48,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:39:49,056 INFO L124 PetriNetUnfolderBase]: 49/176 cut-off events. [2024-11-09 10:39:49,056 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 10:39:49,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 176 events. 49/176 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 731 event pairs, 49 based on Foata normal form. 1/157 useless extension candidates. Maximal degree in co-relation 282. Up to 117 conditions per place. [2024-11-09 10:39:49,058 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 19 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2024-11-09 10:39:49,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 40 transitions, 130 flow [2024-11-09 10:39:49,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:39:49,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:39:49,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-11-09 10:39:49,065 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7192982456140351 [2024-11-09 10:39:49,065 INFO L175 Difference]: Start difference. First operand has 49 places, 44 transitions, 98 flow. Second operand 3 states and 123 transitions. [2024-11-09 10:39:49,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 40 transitions, 130 flow [2024-11-09 10:39:49,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:39:49,066 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 84 flow [2024-11-09 10:39:49,066 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2024-11-09 10:39:49,066 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -15 predicate places. [2024-11-09 10:39:49,067 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 84 flow [2024-11-09 10:39:49,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2024-11-09 10:39:49,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:39:49,070 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 10:39:49,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 10:39:49,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:39:49,271 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:39:49,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:39:49,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1072074423, now seen corresponding path program 1 times [2024-11-09 10:39:49,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:39:49,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528467618] [2024-11-09 10:39:49,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:39:49,272 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 [2024-11-09 10:39:49,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:39:49,274 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:39:49,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 10:39:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:39:49,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 10:39:49,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:39:49,406 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 [2024-11-09 10:39:49,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:39:49,421 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:39:49,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:39:49,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528467618] [2024-11-09 10:39:49,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528467618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:39:49,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:39:49,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:39:49,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717142108] [2024-11-09 10:39:49,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:39:49,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:39:49,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:39:49,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:39:49,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:39:49,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 57 [2024-11-09 10:39:49,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2024-11-09 10:39:49,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:39:49,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 57 [2024-11-09 10:39:49,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:39:49,594 INFO L124 PetriNetUnfolderBase]: 42/146 cut-off events. [2024-11-09 10:39:49,595 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 10:39:49,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 146 events. 42/146 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 555 event pairs, 42 based on Foata normal form. 8/137 useless extension candidates. Maximal degree in co-relation 246. Up to 102 conditions per place. [2024-11-09 10:39:49,596 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 18 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2024-11-09 10:39:49,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 36 transitions, 114 flow [2024-11-09 10:39:49,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:39:49,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:39:49,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-11-09 10:39:49,598 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7309941520467836 [2024-11-09 10:39:49,598 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 84 flow. Second operand 3 states and 125 transitions. [2024-11-09 10:39:49,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 36 transitions, 114 flow [2024-11-09 10:39:49,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 36 transitions, 113 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:39:49,599 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 77 flow [2024-11-09 10:39:49,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2024-11-09 10:39:49,600 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2024-11-09 10:39:49,600 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 77 flow [2024-11-09 10:39:49,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2024-11-09 10:39:49,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:39:49,601 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:39:49,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-09 10:39:49,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:39:49,802 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:39:49,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:39:49,802 INFO L85 PathProgramCache]: Analyzing trace with hash -850215705, now seen corresponding path program 1 times [2024-11-09 10:39:49,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:39:49,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656962666] [2024-11-09 10:39:49,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:39:49,803 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 [2024-11-09 10:39:49,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:39:49,806 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:39:49,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 10:39:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:39:49,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 10:39:49,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:39:49,965 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 [2024-11-09 10:39:49,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:39:49,969 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:39:49,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:39:49,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656962666] [2024-11-09 10:39:49,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [656962666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:39:49,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:39:49,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:39:49,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176524316] [2024-11-09 10:39:49,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:39:49,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:39:49,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:39:49,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:39:49,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:39:50,035 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 57 [2024-11-09 10:39:50,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2024-11-09 10:39:50,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:39:50,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 57 [2024-11-09 10:39:50,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:39:50,140 INFO L124 PetriNetUnfolderBase]: 49/168 cut-off events. [2024-11-09 10:39:50,141 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 10:39:50,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 168 events. 49/168 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 690 event pairs, 35 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 283. Up to 89 conditions per place. [2024-11-09 10:39:50,142 INFO L140 encePairwiseOnDemand]: 53/57 looper letters, 25 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2024-11-09 10:39:50,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 41 transitions, 141 flow [2024-11-09 10:39:50,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:39:50,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:39:50,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 134 transitions. [2024-11-09 10:39:50,143 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.783625730994152 [2024-11-09 10:39:50,143 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 77 flow. Second operand 3 states and 134 transitions. [2024-11-09 10:39:50,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 41 transitions, 141 flow [2024-11-09 10:39:50,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 41 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:39:50,144 INFO L231 Difference]: Finished difference. Result has 41 places, 34 transitions, 76 flow [2024-11-09 10:39:50,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=41, PETRI_TRANSITIONS=34} [2024-11-09 10:39:50,144 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -19 predicate places. [2024-11-09 10:39:50,145 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 76 flow [2024-11-09 10:39:50,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2024-11-09 10:39:50,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:39:50,145 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:39:50,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-09 10:39:50,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:39:50,346 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:39:50,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:39:50,346 INFO L85 PathProgramCache]: Analyzing trace with hash -850215704, now seen corresponding path program 1 times [2024-11-09 10:39:50,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:39:50,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386852672] [2024-11-09 10:39:50,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:39:50,348 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 [2024-11-09 10:39:50,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:39:50,351 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:39:50,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 10:39:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:39:50,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 10:39:50,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:39:50,528 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 [2024-11-09 10:39:50,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:39:50,541 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:39:50,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:39:50,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386852672] [2024-11-09 10:39:50,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386852672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:39:50,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:39:50,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:39:50,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267697154] [2024-11-09 10:39:50,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:39:50,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:39:50,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:39:50,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:39:50,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:39:50,621 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 57 [2024-11-09 10:39:50,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-11-09 10:39:50,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:39:50,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 57 [2024-11-09 10:39:50,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:39:50,702 INFO L124 PetriNetUnfolderBase]: 42/141 cut-off events. [2024-11-09 10:39:50,702 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-09 10:39:50,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 141 events. 42/141 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 513 event pairs, 26 based on Foata normal form. 16/144 useless extension candidates. Maximal degree in co-relation 257. Up to 89 conditions per place. [2024-11-09 10:39:50,703 INFO L140 encePairwiseOnDemand]: 53/57 looper letters, 24 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2024-11-09 10:39:50,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 39 transitions, 138 flow [2024-11-09 10:39:50,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:39:50,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:39:50,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2024-11-09 10:39:50,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7953216374269005 [2024-11-09 10:39:50,704 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 76 flow. Second operand 3 states and 136 transitions. [2024-11-09 10:39:50,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 39 transitions, 138 flow [2024-11-09 10:39:50,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 39 transitions, 134 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:39:50,705 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 72 flow [2024-11-09 10:39:50,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2024-11-09 10:39:50,706 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -21 predicate places. [2024-11-09 10:39:50,706 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 72 flow [2024-11-09 10:39:50,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-11-09 10:39:50,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:39:50,706 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:39:50,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-09 10:39:50,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:39:50,907 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:39:50,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:39:50,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1362769871, now seen corresponding path program 1 times [2024-11-09 10:39:50,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:39:50,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139669649] [2024-11-09 10:39:50,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:39:50,908 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 [2024-11-09 10:39:50,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:39:50,909 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:39:50,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-09 10:39:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:39:51,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 10:39:51,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:39:51,110 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 [2024-11-09 10:39:51,141 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-09 10:39:51,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-09 10:39:51,168 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-09 10:39:51,168 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 [2024-11-09 10:39:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:39:51,205 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:39:51,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:39:51,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139669649] [2024-11-09 10:39:51,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139669649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:39:51,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:39:51,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:39:51,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254326909] [2024-11-09 10:39:51,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:39:51,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:39:51,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:39:51,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:39:51,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:39:51,279 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 57 [2024-11-09 10:39:51,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-11-09 10:39:51,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:39:51,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 57 [2024-11-09 10:39:51,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:39:51,363 INFO L124 PetriNetUnfolderBase]: 42/140 cut-off events. [2024-11-09 10:39:51,363 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-09 10:39:51,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 140 events. 42/140 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 507 event pairs, 36 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 256. Up to 90 conditions per place. [2024-11-09 10:39:51,364 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 21 selfloop transitions, 2 changer transitions 2/37 dead transitions. [2024-11-09 10:39:51,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 37 transitions, 136 flow [2024-11-09 10:39:51,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:39:51,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:39:51,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2024-11-09 10:39:51,365 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8011695906432749 [2024-11-09 10:39:51,365 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 72 flow. Second operand 3 states and 137 transitions. [2024-11-09 10:39:51,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 37 transitions, 136 flow [2024-11-09 10:39:51,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 37 transitions, 128 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:39:51,367 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 70 flow [2024-11-09 10:39:51,367 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2024-11-09 10:39:51,367 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -22 predicate places. [2024-11-09 10:39:51,368 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 70 flow [2024-11-09 10:39:51,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-11-09 10:39:51,368 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:39:51,368 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:39:51,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-09 10:39:51,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:39:51,569 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:39:51,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:39:51,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1362769870, now seen corresponding path program 1 times [2024-11-09 10:39:51,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:39:51,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447481975] [2024-11-09 10:39:51,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:39:51,570 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 [2024-11-09 10:39:51,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:39:51,574 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:39:51,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 10:39:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:39:51,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 10:39:51,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:39:51,798 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 [2024-11-09 10:39:51,805 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 [2024-11-09 10:39:51,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 10:39:51,837 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 [2024-11-09 10:39:51,846 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 10:39:51,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 10:39:51,886 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-09 10:39:51,886 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 12 treesize of output 14 [2024-11-09 10:39:51,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:39:51,924 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:39:51,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:39:51,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447481975] [2024-11-09 10:39:51,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447481975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:39:51,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:39:51,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:39:51,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838606981] [2024-11-09 10:39:51,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:39:51,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:39:51,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:39:51,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:39:51,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:39:52,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 57 [2024-11-09 10:39:52,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:39:52,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:39:52,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 57 [2024-11-09 10:39:52,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:39:52,170 INFO L124 PetriNetUnfolderBase]: 42/136 cut-off events. [2024-11-09 10:39:52,170 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 10:39:52,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 136 events. 42/136 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 490 event pairs, 36 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 243. Up to 90 conditions per place. [2024-11-09 10:39:52,171 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 21 selfloop transitions, 2 changer transitions 2/36 dead transitions. [2024-11-09 10:39:52,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 36 transitions, 130 flow [2024-11-09 10:39:52,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:39:52,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:39:52,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 134 transitions. [2024-11-09 10:39:52,172 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.783625730994152 [2024-11-09 10:39:52,172 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 70 flow. Second operand 3 states and 134 transitions. [2024-11-09 10:39:52,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 36 transitions, 130 flow [2024-11-09 10:39:52,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:39:52,173 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 68 flow [2024-11-09 10:39:52,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2024-11-09 10:39:52,173 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -23 predicate places. [2024-11-09 10:39:52,174 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 68 flow [2024-11-09 10:39:52,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:39:52,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:39:52,174 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:39:52,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-09 10:39:52,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:39:52,375 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:39:52,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:39:52,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1966290414, now seen corresponding path program 1 times [2024-11-09 10:39:52,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:39:52,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [516509835] [2024-11-09 10:39:52,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:39:52,376 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 [2024-11-09 10:39:52,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:39:52,378 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:39:52,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-09 10:39:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:39:52,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 10:39:52,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:39:52,609 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 [2024-11-09 10:39:52,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:39:52,630 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:39:52,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:39:52,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [516509835] [2024-11-09 10:39:52,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [516509835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:39:52,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:39:52,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:39:52,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399860074] [2024-11-09 10:39:52,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:39:52,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:39:52,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:39:52,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:39:52,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:39:52,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 57 [2024-11-09 10:39:52,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:39:52,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:39:52,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 57 [2024-11-09 10:39:52,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:39:52,858 INFO L124 PetriNetUnfolderBase]: 49/155 cut-off events. [2024-11-09 10:39:52,859 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 10:39:52,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 155 events. 49/155 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 542 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 278. Up to 90 conditions per place. [2024-11-09 10:39:52,860 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 32 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2024-11-09 10:39:52,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 166 flow [2024-11-09 10:39:52,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:39:52,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:39:52,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 179 transitions. [2024-11-09 10:39:52,861 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7850877192982456 [2024-11-09 10:39:52,861 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 68 flow. Second operand 4 states and 179 transitions. [2024-11-09 10:39:52,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 166 flow [2024-11-09 10:39:52,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:39:52,862 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 66 flow [2024-11-09 10:39:52,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=66, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-11-09 10:39:52,862 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -23 predicate places. [2024-11-09 10:39:52,863 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 66 flow [2024-11-09 10:39:52,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:39:52,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:39:52,863 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:39:52,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-09 10:39:53,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:39:53,068 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:39:53,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:39:53,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1966290415, now seen corresponding path program 1 times [2024-11-09 10:39:53,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:39:53,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732989316] [2024-11-09 10:39:53,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:39:53,068 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 [2024-11-09 10:39:53,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:39:53,070 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:39:53,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-09 10:39:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:39:53,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 10:39:53,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:39:53,278 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 [2024-11-09 10:39:53,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:39:53,318 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:39:53,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:39:53,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732989316] [2024-11-09 10:39:53,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732989316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:39:53,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:39:53,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:39:53,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106428531] [2024-11-09 10:39:53,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:39:53,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:39:53,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:39:53,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:39:53,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:39:53,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 57 [2024-11-09 10:39:53,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:39:53,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:39:53,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 57 [2024-11-09 10:39:53,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:39:53,585 INFO L124 PetriNetUnfolderBase]: 42/140 cut-off events. [2024-11-09 10:39:53,586 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-09 10:39:53,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 140 events. 42/140 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 468 event pairs, 0 based on Foata normal form. 8/148 useless extension candidates. Maximal degree in co-relation 256. Up to 75 conditions per place. [2024-11-09 10:39:53,586 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 28 selfloop transitions, 2 changer transitions 3/42 dead transitions. [2024-11-09 10:39:53,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 42 transitions, 158 flow [2024-11-09 10:39:53,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:39:53,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:39:53,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 182 transitions. [2024-11-09 10:39:53,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7982456140350878 [2024-11-09 10:39:53,589 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 66 flow. Second operand 4 states and 182 transitions. [2024-11-09 10:39:53,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 42 transitions, 158 flow [2024-11-09 10:39:53,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 155 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:39:53,590 INFO L231 Difference]: Finished difference. Result has 37 places, 27 transitions, 63 flow [2024-11-09 10:39:53,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=63, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2024-11-09 10:39:53,590 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -23 predicate places. [2024-11-09 10:39:53,590 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 63 flow [2024-11-09 10:39:53,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:39:53,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:39:53,591 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:39:53,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-09 10:39:53,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:39:53,792 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:39:53,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:39:53,794 INFO L85 PathProgramCache]: Analyzing trace with hash 2049028740, now seen corresponding path program 1 times [2024-11-09 10:39:53,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:39:53,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59262525] [2024-11-09 10:39:53,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:39:53,795 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 [2024-11-09 10:39:53,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:39:53,799 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:39:53,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-09 10:39:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 10:39:54,033 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 10:39:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 10:39:54,216 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-09 10:39:54,216 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 10:39:54,217 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK (39 of 40 remaining) [2024-11-09 10:39:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 40 remaining) [2024-11-09 10:39:54,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 40 remaining) [2024-11-09 10:39:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 40 remaining) [2024-11-09 10:39:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 40 remaining) [2024-11-09 10:39:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 40 remaining) [2024-11-09 10:39:54,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 40 remaining) [2024-11-09 10:39:54,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 40 remaining) [2024-11-09 10:39:54,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 40 remaining) [2024-11-09 10:39:54,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 40 remaining) [2024-11-09 10:39:54,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 40 remaining) [2024-11-09 10:39:54,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 40 remaining) [2024-11-09 10:39:54,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 40 remaining) [2024-11-09 10:39:54,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 40 remaining) [2024-11-09 10:39:54,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 40 remaining) [2024-11-09 10:39:54,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 40 remaining) [2024-11-09 10:39:54,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 40 remaining) [2024-11-09 10:39:54,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 40 remaining) [2024-11-09 10:39:54,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 40 remaining) [2024-11-09 10:39:54,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 40 remaining) [2024-11-09 10:39:54,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 40 remaining) [2024-11-09 10:39:54,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 40 remaining) [2024-11-09 10:39:54,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 40 remaining) [2024-11-09 10:39:54,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 40 remaining) [2024-11-09 10:39:54,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 40 remaining) [2024-11-09 10:39:54,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 40 remaining) [2024-11-09 10:39:54,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 40 remaining) [2024-11-09 10:39:54,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 40 remaining) [2024-11-09 10:39:54,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 40 remaining) [2024-11-09 10:39:54,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 40 remaining) [2024-11-09 10:39:54,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 40 remaining) [2024-11-09 10:39:54,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 40 remaining) [2024-11-09 10:39:54,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 40 remaining) [2024-11-09 10:39:54,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 40 remaining) [2024-11-09 10:39:54,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 40 remaining) [2024-11-09 10:39:54,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 40 remaining) [2024-11-09 10:39:54,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 40 remaining) [2024-11-09 10:39:54,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 40 remaining) [2024-11-09 10:39:54,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 40 remaining) [2024-11-09 10:39:54,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 40 remaining) [2024-11-09 10:39:54,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-09 10:39:54,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:39:54,426 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:39:54,460 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 10:39:54,462 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 10:39:54,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:39:54 BasicIcfg [2024-11-09 10:39:54,465 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 10:39:54,466 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 10:39:54,466 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 10:39:54,466 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 10:39:54,467 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:39:47" (3/4) ... [2024-11-09 10:39:54,468 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 10:39:54,469 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 10:39:54,469 INFO L158 Benchmark]: Toolchain (without parser) took 8916.44ms. Allocated memory was 67.1MB in the beginning and 161.5MB in the end (delta: 94.4MB). Free memory was 32.7MB in the beginning and 122.7MB in the end (delta: -90.1MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-11-09 10:39:54,469 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 46.1MB. Free memory was 24.5MB in the beginning and 24.5MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 10:39:54,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.61ms. Allocated memory is still 67.1MB. Free memory was 32.4MB in the beginning and 34.0MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 10:39:54,469 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.56ms. Allocated memory is still 67.1MB. Free memory was 34.0MB in the beginning and 31.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 10:39:54,470 INFO L158 Benchmark]: Boogie Preprocessor took 63.12ms. Allocated memory is still 67.1MB. Free memory was 31.3MB in the beginning and 27.7MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 10:39:54,470 INFO L158 Benchmark]: RCFGBuilder took 1093.58ms. Allocated memory was 67.1MB in the beginning and 111.1MB in the end (delta: 44.0MB). Free memory was 27.7MB in the beginning and 79.2MB in the end (delta: -51.5MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2024-11-09 10:39:54,470 INFO L158 Benchmark]: TraceAbstraction took 7197.36ms. Allocated memory was 111.1MB in the beginning and 161.5MB in the end (delta: 50.3MB). Free memory was 78.4MB in the beginning and 122.7MB in the end (delta: -44.4MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. [2024-11-09 10:39:54,470 INFO L158 Benchmark]: Witness Printer took 2.43ms. Allocated memory is still 161.5MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 10:39:54,472 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 46.1MB. Free memory was 24.5MB in the beginning and 24.5MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.61ms. Allocated memory is still 67.1MB. Free memory was 32.4MB in the beginning and 34.0MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.56ms. Allocated memory is still 67.1MB. Free memory was 34.0MB in the beginning and 31.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.12ms. Allocated memory is still 67.1MB. Free memory was 31.3MB in the beginning and 27.7MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1093.58ms. Allocated memory was 67.1MB in the beginning and 111.1MB in the end (delta: 44.0MB). Free memory was 27.7MB in the beginning and 79.2MB in the end (delta: -51.5MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7197.36ms. Allocated memory was 111.1MB in the beginning and 161.5MB in the end (delta: 50.3MB). Free memory was 78.4MB in the beginning and 122.7MB in the end (delta: -44.4MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. * Witness Printer took 2.43ms. Allocated memory is still 161.5MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3013. Possible FailurePath: [L2989-L2992] 0 struct s { struct s *next; int datum; } *A, *B; [L2997] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L2997] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L2997] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L2997] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L2997] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L2997] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L2998] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L3014] 0 pthread_t t1; [L3015] 0 int *ip; [L3016] 0 struct s *sp; [L3017] 0 struct s *p = malloc(sizeof(struct s)); [L3018] CALL 0 init(p,9) [L2994] 0 p -> datum = x VAL [A={0:0}, A_mutex={1:0}, B={0:0}] [L2995] 0 p -> next = ((void *)0) [L3018] RET 0 init(p,9) [L3019] 0 A = malloc(sizeof(struct s)) [L3020] CALL 0 init(A,3) [L2994] 0 p -> datum = x VAL [A={3:0}, A_mutex={1:0}, B={0:0}] [L2995] 0 p -> next = ((void *)0) [L3020] RET 0 init(A,3) [L3021] 0 A->next = p [L3022] 0 B = malloc(sizeof(struct s)) [L3023] CALL 0 init(B,5) [L2994] 0 p -> datum = x VAL [A={3:0}, A_mutex={1:0}, B={1073741824:0}] [L2995] 0 p -> next = ((void *)0) [L3023] RET 0 init(B,5) [L3024] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, A_mutex={1:0}, B={1073741824:0}, p={-2147483648:0}, t1=0] [L3025] 0 ip = &p->datum [L3026] 0 sp = ((struct s *)((char *)(ip)-(unsigned long)__builtin_offsetof (struct s, datum))) VAL [A={3:0}, A_mutex={1:0}, B={1073741824:0}, ip={-2147483648:4}, p={-2147483648:0}, sp={-2147483648:0}, t1=0] [L3028] EXPR 0 A->next [L3028] 0 sp = A->next [L3029] 0 p->datum [L3031] 0 return 0; VAL [A={3:0}, A_mutex={1:0}, B={1073741824:0}, \result=0, ip={-2147483648:4}, p={-2147483648:0}, sp={-2147483648:0}, t1=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3024]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 80 locations, 40 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.1s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 837 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 404 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 962 IncrementalHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 48 mSDtfsCounter, 962 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 454 SizeOfPredicates, 38 NumberOfNonLiveVariables, 2100 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 10:39:54,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample