./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-broom/linux-list-middle-data.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-broom/linux-list-middle-data.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX --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 64bit --witnessprinter.graph.data.programhash 225e0f8ec8427769f807cb9abdb48fc1d5aa020788f9d77d633e751d0afad499 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:42:33,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:42:33,594 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2024-11-08 18:42:33,604 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:42:33,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:42:33,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:42:33,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:42:33,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:42:33,643 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:42:33,644 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:42:33,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:42:33,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:42:33,646 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:42:33,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:42:33,646 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:42:33,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:42:33,647 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:42:33,650 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:42:33,651 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 18:42:33,651 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 18:42:33,651 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 18:42:33,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:42:33,656 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:42:33,656 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:42:33,656 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:42:33,657 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:42:33,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:42:33,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:42:33,657 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:42:33,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:42:33,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:42:33,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:42:33,659 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:42:33,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:42:33,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:42:33,660 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:42:33,661 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:42:33,662 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:42:33,662 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:42:33,663 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 225e0f8ec8427769f807cb9abdb48fc1d5aa020788f9d77d633e751d0afad499 [2024-11-08 18:42:34,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:42:34,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:42:34,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:42:34,061 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:42:34,062 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:42:34,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/memsafety-broom/linux-list-middle-data.i Unable to find full path for "g++" [2024-11-08 18:42:36,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:42:36,698 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:42:36,701 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/sv-benchmarks/c/memsafety-broom/linux-list-middle-data.i [2024-11-08 18:42:36,740 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/data/c00cbd9e2/41740ddb03f548d2b9cf631b6a33b005/FLAG5f1e9d581 [2024-11-08 18:42:36,760 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/data/c00cbd9e2/41740ddb03f548d2b9cf631b6a33b005 [2024-11-08 18:42:36,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:42:36,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:42:36,769 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:42:36,770 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:42:36,777 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:42:36,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:42:36" (1/1) ... [2024-11-08 18:42:36,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a22bee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:36, skipping insertion in model container [2024-11-08 18:42:36,780 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:42:36" (1/1) ... [2024-11-08 18:42:36,862 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:42:37,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:42:37,355 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) [2024-11-08 18:42:37,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6d5eaf9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:37, skipping insertion in model container [2024-11-08 18:42:37,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:42:37,357 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-08 18:42:37,359 INFO L158 Benchmark]: Toolchain (without parser) took 592.43ms. Allocated memory is still 184.5MB. Free memory was 148.4MB in the beginning and 130.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 18:42:37,360 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 136.3MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:42:37,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.79ms. Allocated memory is still 184.5MB. Free memory was 148.4MB in the beginning and 130.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 18:42:37,363 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 136.3MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 587.79ms. Allocated memory is still 184.5MB. Free memory was 148.4MB in the beginning and 130.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2493]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-broom/linux-list-middle-data.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX --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 64bit --witnessprinter.graph.data.programhash 225e0f8ec8427769f807cb9abdb48fc1d5aa020788f9d77d633e751d0afad499 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:42:39,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:42:39,874 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2024-11-08 18:42:39,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:42:39,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:42:39,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:42:39,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:42:39,922 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:42:39,922 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:42:39,923 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:42:39,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:42:39,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:42:39,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:42:39,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:42:39,926 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:42:39,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:42:39,927 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:42:39,927 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:42:39,928 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 18:42:39,928 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 18:42:39,929 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 18:42:39,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:42:39,930 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:42:39,930 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:42:39,930 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:42:39,931 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:42:39,931 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:42:39,931 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:42:39,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:42:39,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:42:39,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:42:39,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:42:39,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:42:39,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:42:39,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:42:39,934 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:42:39,935 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:42:39,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:42:39,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:42:39,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:42:39,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:42:39,936 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 225e0f8ec8427769f807cb9abdb48fc1d5aa020788f9d77d633e751d0afad499 [2024-11-08 18:42:40,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:42:40,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:42:40,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:42:40,369 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:42:40,369 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:42:40,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/memsafety-broom/linux-list-middle-data.i Unable to find full path for "g++" [2024-11-08 18:42:42,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:42:42,943 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:42:42,943 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/sv-benchmarks/c/memsafety-broom/linux-list-middle-data.i [2024-11-08 18:42:42,983 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/data/7be4e1807/35eaaf8a25ba4a2bb7b37eb77b88ea3e/FLAG576415979 [2024-11-08 18:42:43,001 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/data/7be4e1807/35eaaf8a25ba4a2bb7b37eb77b88ea3e [2024-11-08 18:42:43,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:42:43,005 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:42:43,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:42:43,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:42:43,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:42:43,014 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:42:43" (1/1) ... [2024-11-08 18:42:43,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370259d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43, skipping insertion in model container [2024-11-08 18:42:43,015 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:42:43" (1/1) ... [2024-11-08 18:42:43,104 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:42:43,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:42:43,636 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-08 18:42:43,702 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:42:43,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:42:43,774 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:42:43,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:42:43,892 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:42:43,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43 WrapperNode [2024-11-08 18:42:43,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:42:43,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:42:43,896 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:42:43,896 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:42:43,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43" (1/1) ... [2024-11-08 18:42:43,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43" (1/1) ... [2024-11-08 18:42:43,976 INFO L138 Inliner]: procedures = 125, calls = 34, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 102 [2024-11-08 18:42:43,976 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:42:43,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:42:43,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:42:43,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:42:43,994 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43" (1/1) ... [2024-11-08 18:42:43,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43" (1/1) ... [2024-11-08 18:42:43,998 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43" (1/1) ... [2024-11-08 18:42:44,035 INFO L175 MemorySlicer]: Split 20 memory accesses to 1 slices as follows [20]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 12 writes are split as follows [12]. [2024-11-08 18:42:44,038 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43" (1/1) ... [2024-11-08 18:42:44,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43" (1/1) ... [2024-11-08 18:42:44,058 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43" (1/1) ... [2024-11-08 18:42:44,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43" (1/1) ... [2024-11-08 18:42:44,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43" (1/1) ... [2024-11-08 18:42:44,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43" (1/1) ... [2024-11-08 18:42:44,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:42:44,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:42:44,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:42:44,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:42:44,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43" (1/1) ... [2024-11-08 18:42:44,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:42:44,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:44,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:42:44,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:42:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:42:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 18:42:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 18:42:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:42:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 18:42:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:42:44,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:42:44,357 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:42:44,360 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:42:45,107 INFO L? ?]: Removed 151 outVars from TransFormulas that were not future-live. [2024-11-08 18:42:45,107 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:42:45,121 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:42:45,122 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-08 18:42:45,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:42:45 BoogieIcfgContainer [2024-11-08 18:42:45,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:42:45,125 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:42:45,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:42:45,128 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:42:45,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:42:43" (1/3) ... [2024-11-08 18:42:45,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e566aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:42:45, skipping insertion in model container [2024-11-08 18:42:45,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:43" (2/3) ... [2024-11-08 18:42:45,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e566aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:42:45, skipping insertion in model container [2024-11-08 18:42:45,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:42:45" (3/3) ... [2024-11-08 18:42:45,132 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-list-middle-data.i [2024-11-08 18:42:45,152 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:42:45,153 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2024-11-08 18:42:45,199 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:42:45,207 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;@468baff1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:42:45,207 INFO L334 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-11-08 18:42:45,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 55 states have (on average 2.0) internal successors, (110), 102 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:45,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-08 18:42:45,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:45,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-08 18:42:45,221 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:42:45,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:45,230 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2024-11-08 18:42:45,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:45,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1203610903] [2024-11-08 18:42:45,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:45,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:45,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:45,251 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:45,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:42:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:45,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:42:45,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:45,473 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 [2024-11-08 18:42:45,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:45,492 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:45,493 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:45,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203610903] [2024-11-08 18:42:45,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203610903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:45,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:45,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:42:45,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912532320] [2024-11-08 18:42:45,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:45,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:45,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:45,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:45,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:45,544 INFO L87 Difference]: Start difference. First operand has 103 states, 55 states have (on average 2.0) internal successors, (110), 102 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:45,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:45,965 INFO L93 Difference]: Finished difference Result 101 states and 105 transitions. [2024-11-08 18:42:45,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:45,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-08 18:42:45,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:45,978 INFO L225 Difference]: With dead ends: 101 [2024-11-08 18:42:45,979 INFO L226 Difference]: Without dead ends: 99 [2024-11-08 18:42:45,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:45,987 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 31 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:45,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 123 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:42:46,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-08 18:42:46,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-08 18:42:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 54 states have (on average 1.9074074074074074) internal successors, (103), 98 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) [2024-11-08 18:42:46,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 103 transitions. [2024-11-08 18:42:46,038 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 103 transitions. Word has length 3 [2024-11-08 18:42:46,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:46,039 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 103 transitions. [2024-11-08 18:42:46,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:46,040 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 103 transitions. [2024-11-08 18:42:46,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-08 18:42:46,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:46,040 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-08 18:42:46,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:42:46,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:46,245 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:42:46,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:46,246 INFO L85 PathProgramCache]: Analyzing trace with hash 29861, now seen corresponding path program 1 times [2024-11-08 18:42:46,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:46,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778838631] [2024-11-08 18:42:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:46,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:46,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:46,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:46,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:42:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:46,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:42:46,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:46,324 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 [2024-11-08 18:42:46,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:46,347 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:46,347 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:46,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778838631] [2024-11-08 18:42:46,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778838631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:46,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:46,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:42:46,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733880600] [2024-11-08 18:42:46,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:46,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:46,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:46,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:46,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:46,352 INFO L87 Difference]: Start difference. First operand 99 states and 103 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:46,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:46,796 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2024-11-08 18:42:46,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:46,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-08 18:42:46,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:46,798 INFO L225 Difference]: With dead ends: 100 [2024-11-08 18:42:46,798 INFO L226 Difference]: Without dead ends: 100 [2024-11-08 18:42:46,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:46,800 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 5 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:46,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 154 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:42:46,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-08 18:42:46,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2024-11-08 18:42:46,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 54 states have (on average 1.8703703703703705) internal successors, (101), 96 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:46,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 101 transitions. [2024-11-08 18:42:46,818 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 101 transitions. Word has length 3 [2024-11-08 18:42:46,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:46,818 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 101 transitions. [2024-11-08 18:42:46,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:46,819 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 101 transitions. [2024-11-08 18:42:46,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 18:42:46,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:46,819 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:46,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:42:47,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:47,027 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:42:47,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:47,028 INFO L85 PathProgramCache]: Analyzing trace with hash 148077583, now seen corresponding path program 1 times [2024-11-08 18:42:47,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:47,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802698219] [2024-11-08 18:42:47,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:47,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:47,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:47,032 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:47,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:42:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:47,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:42:47,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:47,127 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 [2024-11-08 18:42:47,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:47,152 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:47,152 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:47,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802698219] [2024-11-08 18:42:47,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802698219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:47,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:47,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:42:47,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421014626] [2024-11-08 18:42:47,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:47,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:47,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:47,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:47,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:47,158 INFO L87 Difference]: Start difference. First operand 97 states and 101 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:47,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:47,518 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2024-11-08 18:42:47,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:47,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-08 18:42:47,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:47,520 INFO L225 Difference]: With dead ends: 95 [2024-11-08 18:42:47,520 INFO L226 Difference]: Without dead ends: 95 [2024-11-08 18:42:47,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:47,522 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 3 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:47,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 143 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:42:47,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-08 18:42:47,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-08 18:42:47,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 54 states have (on average 1.8333333333333333) internal successors, (99), 94 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:47,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 99 transitions. [2024-11-08 18:42:47,530 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 99 transitions. Word has length 8 [2024-11-08 18:42:47,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:47,531 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 99 transitions. [2024-11-08 18:42:47,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:47,532 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 99 transitions. [2024-11-08 18:42:47,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 18:42:47,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:47,532 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:47,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:42:47,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:47,734 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:42:47,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:47,738 INFO L85 PathProgramCache]: Analyzing trace with hash 148077584, now seen corresponding path program 1 times [2024-11-08 18:42:47,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:47,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [978196471] [2024-11-08 18:42:47,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:47,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:47,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:47,743 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:47,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:42:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:47,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:42:47,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:47,874 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 [2024-11-08 18:42:47,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:47,896 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:47,896 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:47,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978196471] [2024-11-08 18:42:47,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978196471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:47,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:47,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:42:47,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973902916] [2024-11-08 18:42:47,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:47,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:47,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:47,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:47,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:47,900 INFO L87 Difference]: Start difference. First operand 95 states and 99 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:48,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:48,335 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2024-11-08 18:42:48,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:48,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-08 18:42:48,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:48,337 INFO L225 Difference]: With dead ends: 93 [2024-11-08 18:42:48,338 INFO L226 Difference]: Without dead ends: 93 [2024-11-08 18:42:48,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:48,339 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 3 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:48,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 149 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:42:48,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-08 18:42:48,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-08 18:42:48,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 54 states have (on average 1.7962962962962963) internal successors, (97), 92 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:48,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 97 transitions. [2024-11-08 18:42:48,347 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 97 transitions. Word has length 8 [2024-11-08 18:42:48,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:48,347 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 97 transitions. [2024-11-08 18:42:48,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:48,348 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 97 transitions. [2024-11-08 18:42:48,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 18:42:48,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:48,348 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:48,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:42:48,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:48,549 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:42:48,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:48,550 INFO L85 PathProgramCache]: Analyzing trace with hash 568607665, now seen corresponding path program 1 times [2024-11-08 18:42:48,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:48,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [177373395] [2024-11-08 18:42:48,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:48,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:48,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:48,552 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:48,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:42:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:48,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:42:48,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:48,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:48,693 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:48,693 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:48,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177373395] [2024-11-08 18:42:48,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177373395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:48,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:48,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:42:48,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694133306] [2024-11-08 18:42:48,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:48,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:42:48,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:48,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:42:48,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:42:48,696 INFO L87 Difference]: Start difference. First operand 93 states and 97 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:49,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:49,183 INFO L93 Difference]: Finished difference Result 92 states and 96 transitions. [2024-11-08 18:42:49,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:42:49,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-08 18:42:49,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:49,185 INFO L225 Difference]: With dead ends: 92 [2024-11-08 18:42:49,185 INFO L226 Difference]: Without dead ends: 92 [2024-11-08 18:42:49,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:42:49,186 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 31 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:49,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 188 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:42:49,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-08 18:42:49,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-08 18:42:49,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 54 states have (on average 1.7777777777777777) internal successors, (96), 91 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:49,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2024-11-08 18:42:49,192 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 10 [2024-11-08 18:42:49,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:49,193 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2024-11-08 18:42:49,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:49,193 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2024-11-08 18:42:49,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 18:42:49,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:49,194 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:49,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:42:49,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:49,395 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:42:49,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:49,396 INFO L85 PathProgramCache]: Analyzing trace with hash 568607666, now seen corresponding path program 1 times [2024-11-08 18:42:49,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:49,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1760661230] [2024-11-08 18:42:49,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:49,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:49,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:49,399 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:49,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:42:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:49,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 18:42:49,479 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:49,489 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 [2024-11-08 18:42:49,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:49,617 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:49,617 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:49,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760661230] [2024-11-08 18:42:49,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760661230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:49,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:49,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:42:49,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858142197] [2024-11-08 18:42:49,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:49,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:42:49,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:49,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:42:49,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:42:49,620 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:50,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:50,236 INFO L93 Difference]: Finished difference Result 105 states and 112 transitions. [2024-11-08 18:42:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:42:50,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-08 18:42:50,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:50,239 INFO L225 Difference]: With dead ends: 105 [2024-11-08 18:42:50,239 INFO L226 Difference]: Without dead ends: 105 [2024-11-08 18:42:50,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:42:50,240 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 9 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:50,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 237 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:42:50,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-08 18:42:50,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 97. [2024-11-08 18:42:50,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 59 states have (on average 1.728813559322034) internal successors, (102), 96 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:50,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 102 transitions. [2024-11-08 18:42:50,253 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 102 transitions. Word has length 10 [2024-11-08 18:42:50,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:50,254 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 102 transitions. [2024-11-08 18:42:50,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:50,254 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 102 transitions. [2024-11-08 18:42:50,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 18:42:50,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:50,255 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:50,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 18:42:50,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:50,456 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:42:50,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:50,456 INFO L85 PathProgramCache]: Analyzing trace with hash 998826193, now seen corresponding path program 1 times [2024-11-08 18:42:50,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:50,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063620232] [2024-11-08 18:42:50,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:50,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:50,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:50,459 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:50,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:42:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:50,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:42:50,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:50,658 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-08 18:42:50,659 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 [2024-11-08 18:42:50,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:50,700 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:50,701 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:50,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063620232] [2024-11-08 18:42:50,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063620232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:50,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:50,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:50,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127544534] [2024-11-08 18:42:50,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:50,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:42:50,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:50,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:42:50,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:42:50,703 INFO L87 Difference]: Start difference. First operand 97 states and 102 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:51,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:51,156 INFO L93 Difference]: Finished difference Result 96 states and 101 transitions. [2024-11-08 18:42:51,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:42:51,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-08 18:42:51,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:51,158 INFO L225 Difference]: With dead ends: 96 [2024-11-08 18:42:51,158 INFO L226 Difference]: Without dead ends: 96 [2024-11-08 18:42:51,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:42:51,160 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 20 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:51,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 163 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:42:51,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-08 18:42:51,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-08 18:42:51,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 95 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:51,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2024-11-08 18:42:51,166 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 12 [2024-11-08 18:42:51,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:51,167 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2024-11-08 18:42:51,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:51,167 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2024-11-08 18:42:51,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 18:42:51,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:51,168 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:51,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 18:42:51,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:51,369 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:42:51,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:51,369 INFO L85 PathProgramCache]: Analyzing trace with hash 998826194, now seen corresponding path program 1 times [2024-11-08 18:42:51,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:51,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1344894369] [2024-11-08 18:42:51,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:51,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:51,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:51,372 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:51,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:42:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:51,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:42:51,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:51,514 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 [2024-11-08 18:42:51,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 18:42:51,691 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 [2024-11-08 18:42:51,715 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-08 18:42:51,716 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 [2024-11-08 18:42:51,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:51,779 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:51,780 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:51,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344894369] [2024-11-08 18:42:51,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344894369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:51,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:51,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:42:51,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419339056] [2024-11-08 18:42:51,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:51,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:42:51,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:51,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:42:51,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:42:51,782 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:52,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:52,396 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2024-11-08 18:42:52,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:42:52,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-08 18:42:52,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:52,398 INFO L225 Difference]: With dead ends: 95 [2024-11-08 18:42:52,398 INFO L226 Difference]: Without dead ends: 95 [2024-11-08 18:42:52,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:42:52,399 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 22 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:52,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 192 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:42:52,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-08 18:42:52,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-08 18:42:52,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 59 states have (on average 1.694915254237288) internal successors, (100), 94 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:52,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 100 transitions. [2024-11-08 18:42:52,409 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 100 transitions. Word has length 12 [2024-11-08 18:42:52,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:52,409 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 100 transitions. [2024-11-08 18:42:52,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:52,409 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 100 transitions. [2024-11-08 18:42:52,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 18:42:52,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:52,410 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:52,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 18:42:52,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:52,657 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:42:52,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:52,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1238973923, now seen corresponding path program 1 times [2024-11-08 18:42:52,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:52,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1229873316] [2024-11-08 18:42:52,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:52,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:52,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:52,661 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:52,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 18:42:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:52,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:42:52,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:52,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:52,865 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:52,865 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:52,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229873316] [2024-11-08 18:42:52,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229873316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:52,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:52,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:42:52,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477394103] [2024-11-08 18:42:52,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:52,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:42:52,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:52,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:42:52,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:42:52,867 INFO L87 Difference]: Start difference. First operand 95 states and 100 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:53,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:53,570 INFO L93 Difference]: Finished difference Result 127 states and 135 transitions. [2024-11-08 18:42:53,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:42:53,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-08 18:42:53,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:53,572 INFO L225 Difference]: With dead ends: 127 [2024-11-08 18:42:53,572 INFO L226 Difference]: Without dead ends: 127 [2024-11-08 18:42:53,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:42:53,573 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 68 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:53,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 187 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:42:53,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-08 18:42:53,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 99. [2024-11-08 18:42:53,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 64 states have (on average 1.6875) internal successors, (108), 98 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:53,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2024-11-08 18:42:53,580 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 14 [2024-11-08 18:42:53,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:53,580 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2024-11-08 18:42:53,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:53,580 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2024-11-08 18:42:53,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 18:42:53,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:53,581 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:53,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 18:42:53,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:53,781 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:42:53,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:53,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1238973924, now seen corresponding path program 1 times [2024-11-08 18:42:53,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:53,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466077879] [2024-11-08 18:42:53,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:53,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:53,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:53,783 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:53,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 18:42:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:53,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 18:42:53,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:53,903 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 [2024-11-08 18:42:54,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:54,073 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:54,073 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:54,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466077879] [2024-11-08 18:42:54,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466077879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:54,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:54,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:42:54,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719420000] [2024-11-08 18:42:54,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:54,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:42:54,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:54,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:42:54,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:42:54,075 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:55,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:55,040 INFO L93 Difference]: Finished difference Result 151 states and 166 transitions. [2024-11-08 18:42:55,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:42:55,041 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-08 18:42:55,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:55,042 INFO L225 Difference]: With dead ends: 151 [2024-11-08 18:42:55,042 INFO L226 Difference]: Without dead ends: 151 [2024-11-08 18:42:55,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:42:55,043 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 49 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:55,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 246 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:42:55,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-08 18:42:55,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 130. [2024-11-08 18:42:55,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 95 states have (on average 1.7473684210526317) internal successors, (166), 129 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:55,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 166 transitions. [2024-11-08 18:42:55,050 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 166 transitions. Word has length 14 [2024-11-08 18:42:55,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:55,050 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 166 transitions. [2024-11-08 18:42:55,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:55,051 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 166 transitions. [2024-11-08 18:42:55,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 18:42:55,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:55,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:55,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-08 18:42:55,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:55,252 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:42:55,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:55,253 INFO L85 PathProgramCache]: Analyzing trace with hash 2094264722, now seen corresponding path program 1 times [2024-11-08 18:42:55,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:55,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938718444] [2024-11-08 18:42:55,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:55,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:55,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:55,260 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:55,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 18:42:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:55,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:42:55,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:55,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:55,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:55,509 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:55,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938718444] [2024-11-08 18:42:55,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938718444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:55,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:55,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:55,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451837284] [2024-11-08 18:42:55,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:55,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:42:55,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:55,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:42:55,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:42:55,512 INFO L87 Difference]: Start difference. First operand 130 states and 166 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:55,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:55,852 INFO L93 Difference]: Finished difference Result 129 states and 165 transitions. [2024-11-08 18:42:55,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:42:55,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-08 18:42:55,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:55,854 INFO L225 Difference]: With dead ends: 129 [2024-11-08 18:42:55,854 INFO L226 Difference]: Without dead ends: 129 [2024-11-08 18:42:55,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:42:55,855 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 3 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:55,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 183 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:42:55,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-08 18:42:55,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-08 18:42:55,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 95 states have (on average 1.736842105263158) internal successors, (165), 128 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:55,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 165 transitions. [2024-11-08 18:42:55,861 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 165 transitions. Word has length 14 [2024-11-08 18:42:55,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:55,861 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 165 transitions. [2024-11-08 18:42:55,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:55,861 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 165 transitions. [2024-11-08 18:42:55,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 18:42:55,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:55,862 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:55,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-08 18:42:56,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:56,063 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:42:56,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:56,064 INFO L85 PathProgramCache]: Analyzing trace with hash 2094264723, now seen corresponding path program 1 times [2024-11-08 18:42:56,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:56,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49970435] [2024-11-08 18:42:56,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:56,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:56,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:56,070 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:56,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 18:42:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:56,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:42:56,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:56,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:56,312 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:56,312 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:56,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49970435] [2024-11-08 18:42:56,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49970435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:56,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:56,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:42:56,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221268178] [2024-11-08 18:42:56,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:56,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:42:56,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:56,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:42:56,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:42:56,314 INFO L87 Difference]: Start difference. First operand 129 states and 165 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:56,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:56,746 INFO L93 Difference]: Finished difference Result 128 states and 164 transitions. [2024-11-08 18:42:56,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:42:56,747 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-08 18:42:56,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:56,748 INFO L225 Difference]: With dead ends: 128 [2024-11-08 18:42:56,748 INFO L226 Difference]: Without dead ends: 128 [2024-11-08 18:42:56,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:42:56,748 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 19 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:56,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 277 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:42:56,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-08 18:42:56,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-11-08 18:42:56,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 95 states have (on average 1.7263157894736842) internal successors, (164), 127 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:56,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 164 transitions. [2024-11-08 18:42:56,752 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 164 transitions. Word has length 14 [2024-11-08 18:42:56,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:56,752 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 164 transitions. [2024-11-08 18:42:56,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:56,752 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 164 transitions. [2024-11-08 18:42:56,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 18:42:56,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:56,753 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:56,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-08 18:42:56,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:56,953 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:42:56,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:56,954 INFO L85 PathProgramCache]: Analyzing trace with hash -246911177, now seen corresponding path program 1 times [2024-11-08 18:42:56,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:56,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1957842071] [2024-11-08 18:42:56,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:56,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:56,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:56,956 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:56,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 18:42:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:57,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 18:42:57,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:57,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:42:57,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-08 18:42:57,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:42:57,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:57,271 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:57,271 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:57,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957842071] [2024-11-08 18:42:57,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957842071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:57,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:57,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:42:57,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603696419] [2024-11-08 18:42:57,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:57,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:42:57,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:57,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:42:57,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:42:57,273 INFO L87 Difference]: Start difference. First operand 128 states and 164 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:58,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:58,131 INFO L93 Difference]: Finished difference Result 135 states and 172 transitions. [2024-11-08 18:42:58,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:42:58,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-08 18:42:58,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:58,132 INFO L225 Difference]: With dead ends: 135 [2024-11-08 18:42:58,132 INFO L226 Difference]: Without dead ends: 135 [2024-11-08 18:42:58,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:42:58,133 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 14 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:58,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 287 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:42:58,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-08 18:42:58,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 132. [2024-11-08 18:42:58,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 99 states have (on average 1.7272727272727273) internal successors, (171), 131 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:58,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 171 transitions. [2024-11-08 18:42:58,140 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 171 transitions. Word has length 15 [2024-11-08 18:42:58,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:58,140 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 171 transitions. [2024-11-08 18:42:58,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:58,141 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 171 transitions. [2024-11-08 18:42:58,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 18:42:58,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:58,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:58,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-08 18:42:58,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:58,344 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:42:58,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:58,345 INFO L85 PathProgramCache]: Analyzing trace with hash -246911176, now seen corresponding path program 1 times [2024-11-08 18:42:58,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:58,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1628962882] [2024-11-08 18:42:58,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:58,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:42:58,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:58,347 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:42:58,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 18:42:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:58,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 18:42:58,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:58,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:42:58,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:42:58,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-08 18:42:58,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-08 18:42:58,815 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:42:58,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:42:58,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:42:58,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:58,920 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:42:58,921 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:58,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628962882] [2024-11-08 18:42:58,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628962882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:58,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:58,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:42:58,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371843178] [2024-11-08 18:42:58,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:58,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:42:58,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:58,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:42:58,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:42:58,923 INFO L87 Difference]: Start difference. First operand 132 states and 171 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:59,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:59,884 INFO L93 Difference]: Finished difference Result 125 states and 157 transitions. [2024-11-08 18:42:59,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:42:59,885 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-08 18:42:59,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:59,886 INFO L225 Difference]: With dead ends: 125 [2024-11-08 18:42:59,886 INFO L226 Difference]: Without dead ends: 125 [2024-11-08 18:42:59,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:42:59,886 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 27 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:59,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 433 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:42:59,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-08 18:42:59,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 124. [2024-11-08 18:42:59,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 91 states have (on average 1.7142857142857142) internal successors, (156), 123 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:59,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 156 transitions. [2024-11-08 18:42:59,891 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 156 transitions. Word has length 15 [2024-11-08 18:42:59,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:59,891 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 156 transitions. [2024-11-08 18:42:59,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:59,891 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 156 transitions. [2024-11-08 18:42:59,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 18:42:59,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:59,892 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:59,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-08 18:43:00,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:00,093 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:00,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:00,093 INFO L85 PathProgramCache]: Analyzing trace with hash 497696954, now seen corresponding path program 1 times [2024-11-08 18:43:00,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:00,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [138780492] [2024-11-08 18:43:00,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:00,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:00,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:00,096 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:00,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-08 18:43:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:00,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:43:00,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:00,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:00,294 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:00,295 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:00,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138780492] [2024-11-08 18:43:00,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138780492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:00,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:00,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:43:00,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851036688] [2024-11-08 18:43:00,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:00,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:43:00,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:00,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:43:00,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:43:00,297 INFO L87 Difference]: Start difference. First operand 124 states and 156 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:00,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:00,837 INFO L93 Difference]: Finished difference Result 122 states and 154 transitions. [2024-11-08 18:43:00,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:43:00,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-08 18:43:00,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:00,838 INFO L225 Difference]: With dead ends: 122 [2024-11-08 18:43:00,838 INFO L226 Difference]: Without dead ends: 122 [2024-11-08 18:43:00,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:43:00,839 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 4 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:00,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 212 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:43:00,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-08 18:43:00,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-08 18:43:00,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 91 states have (on average 1.6923076923076923) internal successors, (154), 121 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) [2024-11-08 18:43:00,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 154 transitions. [2024-11-08 18:43:00,844 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 154 transitions. Word has length 15 [2024-11-08 18:43:00,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:00,844 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 154 transitions. [2024-11-08 18:43:00,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:00,844 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 154 transitions. [2024-11-08 18:43:00,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 18:43:00,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:00,845 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:00,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-08 18:43:01,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:01,045 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:01,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:01,046 INFO L85 PathProgramCache]: Analyzing trace with hash 497696955, now seen corresponding path program 1 times [2024-11-08 18:43:01,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:01,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489183457] [2024-11-08 18:43:01,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:01,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:01,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:01,048 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:01,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-08 18:43:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:01,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 18:43:01,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:01,199 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 [2024-11-08 18:43:01,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:01,318 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:01,318 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:01,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489183457] [2024-11-08 18:43:01,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489183457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:01,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:01,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:43:01,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994579891] [2024-11-08 18:43:01,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:01,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:43:01,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:01,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:43:01,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:43:01,320 INFO L87 Difference]: Start difference. First operand 122 states and 154 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:01,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:01,896 INFO L93 Difference]: Finished difference Result 120 states and 152 transitions. [2024-11-08 18:43:01,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:43:01,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-08 18:43:01,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:01,898 INFO L225 Difference]: With dead ends: 120 [2024-11-08 18:43:01,898 INFO L226 Difference]: Without dead ends: 120 [2024-11-08 18:43:01,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:43:01,899 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 4 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:01,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 224 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:43:01,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-08 18:43:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-08 18:43:01,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 91 states have (on average 1.6703296703296704) internal successors, (152), 119 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:01,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 152 transitions. [2024-11-08 18:43:01,903 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 152 transitions. Word has length 15 [2024-11-08 18:43:01,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:01,903 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 152 transitions. [2024-11-08 18:43:01,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:01,904 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 152 transitions. [2024-11-08 18:43:01,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 18:43:01,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:01,904 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:01,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-08 18:43:02,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:02,105 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:02,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:02,106 INFO L85 PathProgramCache]: Analyzing trace with hash 948000836, now seen corresponding path program 1 times [2024-11-08 18:43:02,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:02,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [623456610] [2024-11-08 18:43:02,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:02,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:02,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:02,110 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:02,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-08 18:43:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:02,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 18:43:02,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:02,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:43:02,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:43:02,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:02,566 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:02,566 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:02,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623456610] [2024-11-08 18:43:02,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623456610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:02,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:02,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:43:02,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515119286] [2024-11-08 18:43:02,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:02,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:43:02,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:02,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:43:02,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:43:02,568 INFO L87 Difference]: Start difference. First operand 120 states and 152 transitions. Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:04,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:04,333 INFO L93 Difference]: Finished difference Result 180 states and 234 transitions. [2024-11-08 18:43:04,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:43:04,333 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-08 18:43:04,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:04,335 INFO L225 Difference]: With dead ends: 180 [2024-11-08 18:43:04,337 INFO L226 Difference]: Without dead ends: 180 [2024-11-08 18:43:04,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:43:04,338 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 91 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:04,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 267 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 18:43:04,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-08 18:43:04,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 150. [2024-11-08 18:43:04,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 121 states have (on average 1.7603305785123966) internal successors, (213), 149 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:04,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 213 transitions. [2024-11-08 18:43:04,347 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 213 transitions. Word has length 16 [2024-11-08 18:43:04,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:04,348 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 213 transitions. [2024-11-08 18:43:04,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:04,348 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 213 transitions. [2024-11-08 18:43:04,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 18:43:04,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:04,349 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:04,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-08 18:43:04,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:04,550 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:04,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:04,550 INFO L85 PathProgramCache]: Analyzing trace with hash 948000837, now seen corresponding path program 1 times [2024-11-08 18:43:04,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:04,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1623661809] [2024-11-08 18:43:04,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:04,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:04,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:04,552 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:04,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-08 18:43:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:04,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 18:43:04,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:04,675 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 [2024-11-08 18:43:04,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:43:04,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:43:05,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:43:05,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-08 18:43:05,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:05,262 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:05,262 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:05,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623661809] [2024-11-08 18:43:05,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623661809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:05,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:05,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:43:05,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131857145] [2024-11-08 18:43:05,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:05,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:43:05,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:05,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:43:05,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:43:05,264 INFO L87 Difference]: Start difference. First operand 150 states and 213 transitions. Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:06,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:06,807 INFO L93 Difference]: Finished difference Result 143 states and 172 transitions. [2024-11-08 18:43:06,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:43:06,807 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-08 18:43:06,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:06,808 INFO L225 Difference]: With dead ends: 143 [2024-11-08 18:43:06,808 INFO L226 Difference]: Without dead ends: 143 [2024-11-08 18:43:06,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:43:06,809 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 42 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:06,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 365 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 18:43:06,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-08 18:43:06,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 131. [2024-11-08 18:43:06,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 102 states have (on average 1.6862745098039216) internal successors, (172), 130 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:06,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 172 transitions. [2024-11-08 18:43:06,814 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 172 transitions. Word has length 16 [2024-11-08 18:43:06,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:06,814 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 172 transitions. [2024-11-08 18:43:06,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:06,815 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 172 transitions. [2024-11-08 18:43:06,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-08 18:43:06,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:06,815 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:06,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-08 18:43:07,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:07,016 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:07,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:07,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1545403421, now seen corresponding path program 1 times [2024-11-08 18:43:07,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:07,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1138035131] [2024-11-08 18:43:07,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:07,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:07,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:07,019 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:07,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-08 18:43:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:07,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 18:43:07,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:07,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:43:07,298 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-08 18:43:07,299 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 [2024-11-08 18:43:07,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:07,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:07,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:43:07,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:07,515 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:07,515 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:07,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138035131] [2024-11-08 18:43:07,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138035131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:07,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:07,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:43:07,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651985651] [2024-11-08 18:43:07,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:07,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:43:07,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:07,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:43:07,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:43:07,518 INFO L87 Difference]: Start difference. First operand 131 states and 172 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:08,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:08,495 INFO L93 Difference]: Finished difference Result 141 states and 183 transitions. [2024-11-08 18:43:08,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:43:08,496 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-08 18:43:08,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:08,497 INFO L225 Difference]: With dead ends: 141 [2024-11-08 18:43:08,497 INFO L226 Difference]: Without dead ends: 141 [2024-11-08 18:43:08,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:43:08,498 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 49 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:08,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 336 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:43:08,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-08 18:43:08,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-08 18:43:08,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 112 states have (on average 1.6339285714285714) internal successors, (183), 140 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:08,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 183 transitions. [2024-11-08 18:43:08,516 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 183 transitions. Word has length 17 [2024-11-08 18:43:08,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:08,516 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 183 transitions. [2024-11-08 18:43:08,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:08,517 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 183 transitions. [2024-11-08 18:43:08,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-08 18:43:08,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:08,517 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:08,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-08 18:43:08,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:08,722 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:08,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:08,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1545403422, now seen corresponding path program 1 times [2024-11-08 18:43:08,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:08,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381333816] [2024-11-08 18:43:08,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:08,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:08,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:08,726 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:08,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-08 18:43:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:09,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 18:43:09,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:09,013 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 [2024-11-08 18:43:09,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:43:09,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:43:09,211 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-08 18:43:09,212 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 13 [2024-11-08 18:43:09,242 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-08 18:43:09,242 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 [2024-11-08 18:43:09,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:09,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:09,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:09,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:09,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:43:09,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-08 18:43:09,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:09,687 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:09,688 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:09,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381333816] [2024-11-08 18:43:09,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381333816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:09,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:09,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:43:09,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596268875] [2024-11-08 18:43:09,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:09,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:43:09,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:09,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:43:09,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:43:09,690 INFO L87 Difference]: Start difference. First operand 141 states and 183 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:10,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:10,906 INFO L93 Difference]: Finished difference Result 141 states and 182 transitions. [2024-11-08 18:43:10,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:43:10,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-08 18:43:10,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:10,908 INFO L225 Difference]: With dead ends: 141 [2024-11-08 18:43:10,908 INFO L226 Difference]: Without dead ends: 141 [2024-11-08 18:43:10,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:43:10,910 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 57 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:10,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 274 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:43:10,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-08 18:43:10,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-08 18:43:10,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 112 states have (on average 1.625) internal successors, (182), 140 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:10,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 182 transitions. [2024-11-08 18:43:10,915 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 182 transitions. Word has length 17 [2024-11-08 18:43:10,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:10,915 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 182 transitions. [2024-11-08 18:43:10,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:10,915 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 182 transitions. [2024-11-08 18:43:10,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 18:43:10,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:10,916 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:10,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-08 18:43:11,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:11,117 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:11,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:11,117 INFO L85 PathProgramCache]: Analyzing trace with hash -336533360, now seen corresponding path program 1 times [2024-11-08 18:43:11,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:11,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1180129756] [2024-11-08 18:43:11,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:11,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:11,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:11,119 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:11,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-08 18:43:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:11,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:43:11,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:11,400 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:11,401 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:11,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180129756] [2024-11-08 18:43:11,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180129756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:11,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:11,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:43:11,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268649377] [2024-11-08 18:43:11,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:11,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:43:11,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:11,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:43:11,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:11,402 INFO L87 Difference]: Start difference. First operand 141 states and 182 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:11,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:11,663 INFO L93 Difference]: Finished difference Result 140 states and 180 transitions. [2024-11-08 18:43:11,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:43:11,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-08 18:43:11,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:11,665 INFO L225 Difference]: With dead ends: 140 [2024-11-08 18:43:11,665 INFO L226 Difference]: Without dead ends: 140 [2024-11-08 18:43:11,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:11,666 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 62 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:11,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 267 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:43:11,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-08 18:43:11,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2024-11-08 18:43:11,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 112 states have (on average 1.6071428571428572) internal successors, (180), 139 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:11,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 180 transitions. [2024-11-08 18:43:11,672 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 180 transitions. Word has length 20 [2024-11-08 18:43:11,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:11,672 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 180 transitions. [2024-11-08 18:43:11,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:11,673 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 180 transitions. [2024-11-08 18:43:11,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 18:43:11,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:11,673 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:11,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-08 18:43:11,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:11,874 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:11,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:11,874 INFO L85 PathProgramCache]: Analyzing trace with hash -336573015, now seen corresponding path program 1 times [2024-11-08 18:43:11,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:11,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [533243291] [2024-11-08 18:43:11,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:11,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:11,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:11,877 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:11,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-08 18:43:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:12,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:43:12,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:12,092 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:12,092 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:12,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533243291] [2024-11-08 18:43:12,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533243291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:12,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:12,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:43:12,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150336548] [2024-11-08 18:43:12,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:12,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:43:12,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:12,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:43:12,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:43:12,098 INFO L87 Difference]: Start difference. First operand 140 states and 180 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:12,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:12,670 INFO L93 Difference]: Finished difference Result 146 states and 169 transitions. [2024-11-08 18:43:12,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:43:12,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-08 18:43:12,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:12,671 INFO L225 Difference]: With dead ends: 146 [2024-11-08 18:43:12,672 INFO L226 Difference]: Without dead ends: 146 [2024-11-08 18:43:12,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:43:12,673 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 42 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:12,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 131 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:43:12,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-08 18:43:12,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 137. [2024-11-08 18:43:12,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 112 states have (on average 1.5089285714285714) internal successors, (169), 136 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:12,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 169 transitions. [2024-11-08 18:43:12,677 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 169 transitions. Word has length 20 [2024-11-08 18:43:12,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:12,678 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 169 transitions. [2024-11-08 18:43:12,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:12,678 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 169 transitions. [2024-11-08 18:43:12,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 18:43:12,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:12,679 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:12,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-08 18:43:12,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:12,883 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:12,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:12,884 INFO L85 PathProgramCache]: Analyzing trace with hash -336573014, now seen corresponding path program 1 times [2024-11-08 18:43:12,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:12,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [553135412] [2024-11-08 18:43:12,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:12,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:12,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:12,887 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:12,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-08 18:43:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:13,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 18:43:13,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:13,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:43:13,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-08 18:43:13,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-08 18:43:13,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:43:13,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:13,534 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:13,534 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:13,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553135412] [2024-11-08 18:43:13,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553135412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:13,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:13,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:43:13,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364637898] [2024-11-08 18:43:13,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:13,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:43:13,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:13,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:43:13,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:43:13,536 INFO L87 Difference]: Start difference. First operand 137 states and 169 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:14,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:14,491 INFO L93 Difference]: Finished difference Result 132 states and 155 transitions. [2024-11-08 18:43:14,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:43:14,492 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-08 18:43:14,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:14,493 INFO L225 Difference]: With dead ends: 132 [2024-11-08 18:43:14,493 INFO L226 Difference]: Without dead ends: 132 [2024-11-08 18:43:14,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:43:14,494 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 37 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:14,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 445 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:43:14,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-08 18:43:14,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 126. [2024-11-08 18:43:14,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 101 states have (on average 1.4653465346534653) internal successors, (148), 125 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:14,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 148 transitions. [2024-11-08 18:43:14,499 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 148 transitions. Word has length 20 [2024-11-08 18:43:14,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:14,499 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 148 transitions. [2024-11-08 18:43:14,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:14,499 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 148 transitions. [2024-11-08 18:43:14,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-08 18:43:14,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:14,500 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:14,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-08 18:43:14,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:14,700 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:14,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:14,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1211488033, now seen corresponding path program 1 times [2024-11-08 18:43:14,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:14,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490389004] [2024-11-08 18:43:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:14,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:14,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:14,703 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:14,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-08 18:43:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:14,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:43:14,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:15,023 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_destroy_~head#1.base_15| (_ BitVec 64))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_destroy_~head#1.base_15| (_ bv0 1)) |c_#valid|) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_destroy_~head#1.base_15|) (_ bv0 1)))) is different from true [2024-11-08 18:43:15,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:15,040 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:15,040 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:15,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490389004] [2024-11-08 18:43:15,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490389004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:15,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:15,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:43:15,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526081499] [2024-11-08 18:43:15,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:15,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:43:15,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:15,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:43:15,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2024-11-08 18:43:15,042 INFO L87 Difference]: Start difference. First operand 126 states and 148 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:15,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:15,739 INFO L93 Difference]: Finished difference Result 133 states and 154 transitions. [2024-11-08 18:43:15,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:43:15,740 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-08 18:43:15,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:15,741 INFO L225 Difference]: With dead ends: 133 [2024-11-08 18:43:15,741 INFO L226 Difference]: Without dead ends: 117 [2024-11-08 18:43:15,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2024-11-08 18:43:15,742 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 103 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:15,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 236 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 103 Unchecked, 0.7s Time] [2024-11-08 18:43:15,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-08 18:43:15,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-08 18:43:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 92 states have (on average 1.5) internal successors, (138), 116 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:15,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 138 transitions. [2024-11-08 18:43:15,746 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 138 transitions. Word has length 23 [2024-11-08 18:43:15,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:15,747 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 138 transitions. [2024-11-08 18:43:15,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:15,747 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 138 transitions. [2024-11-08 18:43:15,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-08 18:43:15,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:15,747 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:15,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-08 18:43:15,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:15,948 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:15,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:15,948 INFO L85 PathProgramCache]: Analyzing trace with hash 760078044, now seen corresponding path program 1 times [2024-11-08 18:43:15,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:15,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2065157580] [2024-11-08 18:43:15,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:15,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:15,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:15,950 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:15,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-08 18:43:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:16,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:43:16,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:16,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:16,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:16,373 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:16,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065157580] [2024-11-08 18:43:16,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065157580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:16,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:16,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:43:16,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709204894] [2024-11-08 18:43:16,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:16,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:43:16,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:16,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:43:16,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:43:16,376 INFO L87 Difference]: Start difference. First operand 117 states and 138 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:16,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:16,991 INFO L93 Difference]: Finished difference Result 116 states and 137 transitions. [2024-11-08 18:43:16,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:43:16,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-08 18:43:16,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:16,993 INFO L225 Difference]: With dead ends: 116 [2024-11-08 18:43:16,993 INFO L226 Difference]: Without dead ends: 116 [2024-11-08 18:43:16,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:43:16,994 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 19 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:16,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 229 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:43:16,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-08 18:43:16,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-08 18:43:16,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 92 states have (on average 1.4891304347826086) internal successors, (137), 115 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:16,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 137 transitions. [2024-11-08 18:43:16,998 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 137 transitions. Word has length 24 [2024-11-08 18:43:16,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:16,998 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 137 transitions. [2024-11-08 18:43:16,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:16,998 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 137 transitions. [2024-11-08 18:43:16,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 18:43:16,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:16,999 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:17,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-08 18:43:17,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:17,199 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:17,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:17,200 INFO L85 PathProgramCache]: Analyzing trace with hash 55391246, now seen corresponding path program 1 times [2024-11-08 18:43:17,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:17,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1369210270] [2024-11-08 18:43:17,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:17,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:17,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:17,201 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:17,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-08 18:43:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:17,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:43:17,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:17,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:17,645 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:43:17,645 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:17,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369210270] [2024-11-08 18:43:17,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369210270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:17,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:17,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:43:17,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626778610] [2024-11-08 18:43:17,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:17,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:43:17,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:17,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:43:17,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:43:17,647 INFO L87 Difference]: Start difference. First operand 116 states and 137 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:18,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:18,427 INFO L93 Difference]: Finished difference Result 114 states and 133 transitions. [2024-11-08 18:43:18,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:43:18,428 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-08 18:43:18,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:18,429 INFO L225 Difference]: With dead ends: 114 [2024-11-08 18:43:18,429 INFO L226 Difference]: Without dead ends: 114 [2024-11-08 18:43:18,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:43:18,430 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 58 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:18,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 192 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:43:18,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-08 18:43:18,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2024-11-08 18:43:18,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 91 states have (on average 1.4505494505494505) internal successors, (132), 112 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:18,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 132 transitions. [2024-11-08 18:43:18,434 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 132 transitions. Word has length 28 [2024-11-08 18:43:18,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:18,434 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 132 transitions. [2024-11-08 18:43:18,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:18,435 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 132 transitions. [2024-11-08 18:43:18,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 18:43:18,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:18,435 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:18,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-08 18:43:18,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:18,636 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:18,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:18,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1716731469, now seen corresponding path program 1 times [2024-11-08 18:43:18,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:18,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [752989891] [2024-11-08 18:43:18,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:18,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:18,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:18,638 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:18,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-08 18:43:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:18,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-08 18:43:18,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:18,868 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 [2024-11-08 18:43:18,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:43:18,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:43:18,999 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-08 18:43:18,999 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 [2024-11-08 18:43:19,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:19,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:19,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:19,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:19,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:43:19,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:43:19,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 18:43:19,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-08 18:43:19,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:19,793 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:43:19,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2024-11-08 18:43:20,962 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2024-11-08 18:43:20,963 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 16 treesize of output 15 [2024-11-08 18:43:20,972 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((v_ArrVal_879 (Array (_ BitVec 64) (_ BitVec 64)))) (= |c_ULTIMATE.start_create_~head~0#1.base| (select (select (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_879) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0))) (forall ((v_ArrVal_880 (Array (_ BitVec 64) (_ BitVec 64)))) (= (select (select (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_880) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0) |c_ULTIMATE.start_create_~head~0#1.offset|)))) is different from false [2024-11-08 18:43:21,021 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_17| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_17|))) (forall ((v_ArrVal_880 (Array (_ BitVec 64) (_ BitVec 64)))) (= (select (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_17| v_ArrVal_880) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0) |c_ULTIMATE.start_create_~head~0#1.offset|)))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_17| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_17|))) (forall ((v_ArrVal_879 (Array (_ BitVec 64) (_ BitVec 64)))) (= |c_ULTIMATE.start_create_~head~0#1.base| (select (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_17| v_ArrVal_879) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0))))))) is different from false [2024-11-08 18:43:21,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:21,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2024-11-08 18:43:21,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-11-08 18:43:21,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-08 18:43:21,120 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2024-11-08 18:43:21,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2024-11-08 18:43:21,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2024-11-08 18:43:21,178 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:21,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752989891] [2024-11-08 18:43:21,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752989891] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:43:21,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:43:21,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2024-11-08 18:43:21,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948338479] [2024-11-08 18:43:21,179 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:43:21,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-08 18:43:21,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:21,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-08 18:43:21,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=449, Unknown=6, NotChecked=86, Total=600 [2024-11-08 18:43:21,182 INFO L87 Difference]: Start difference. First operand 113 states and 132 transitions. Second operand has 25 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 25 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:25,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:25,052 INFO L93 Difference]: Finished difference Result 133 states and 158 transitions. [2024-11-08 18:43:25,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:43:25,053 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 25 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-08 18:43:25,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:25,054 INFO L225 Difference]: With dead ends: 133 [2024-11-08 18:43:25,054 INFO L226 Difference]: Without dead ends: 133 [2024-11-08 18:43:25,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=142, Invalid=916, Unknown=6, NotChecked=126, Total=1190 [2024-11-08 18:43:25,055 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 63 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 152 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:25,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 732 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 791 Invalid, 0 Unknown, 152 Unchecked, 2.9s Time] [2024-11-08 18:43:25,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-08 18:43:25,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2024-11-08 18:43:25,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 103 states have (on average 1.4368932038834952) internal successors, (148), 124 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:25,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 148 transitions. [2024-11-08 18:43:25,060 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 148 transitions. Word has length 29 [2024-11-08 18:43:25,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:25,061 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 148 transitions. [2024-11-08 18:43:25,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 25 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:25,061 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 148 transitions. [2024-11-08 18:43:25,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 18:43:25,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:25,062 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:25,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-08 18:43:25,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:25,266 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:25,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:25,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1716731470, now seen corresponding path program 1 times [2024-11-08 18:43:25,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:25,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057762358] [2024-11-08 18:43:25,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:25,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:25,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:25,268 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:25,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-08 18:43:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-08 18:43:25,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:25,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:43:25,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:43:25,589 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-08 18:43:25,589 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 [2024-11-08 18:43:25,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:43:25,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:25,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:25,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:25,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:25,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:43:25,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:43:26,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:43:26,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 18:43:26,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 18:43:26,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2024-11-08 18:43:26,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:26,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:43:27,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 56 [2024-11-08 18:43:27,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 82 [2024-11-08 18:43:27,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2024-11-08 18:43:29,414 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_22| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_22|))) (forall ((v_ArrVal_959 (Array (_ BitVec 64) (_ BitVec 64)))) (= (select (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_22| v_ArrVal_959) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0) |c_ULTIMATE.start_create_~head~0#1.offset|)))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_22| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_22|))) (forall ((v_ArrVal_960 (Array (_ BitVec 64) (_ BitVec 64)))) (= (select (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_22| v_ArrVal_960) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0) |c_ULTIMATE.start_create_~head~0#1.base|)))))) is different from false [2024-11-08 18:43:29,495 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:29,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2024-11-08 18:43:29,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-11-08 18:43:29,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-08 18:43:29,521 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2024-11-08 18:43:29,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2024-11-08 18:43:29,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2024-11-08 18:43:29,682 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:29,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057762358] [2024-11-08 18:43:29,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057762358] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:43:29,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:43:29,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-08 18:43:29,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458663680] [2024-11-08 18:43:29,683 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:43:29,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-08 18:43:29,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:43:29,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-08 18:43:29,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=532, Unknown=3, NotChecked=46, Total=650 [2024-11-08 18:43:29,685 INFO L87 Difference]: Start difference. First operand 125 states and 148 transitions. Second operand has 26 states, 25 states have (on average 2.28) internal successors, (57), 26 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:36,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:36,158 INFO L93 Difference]: Finished difference Result 133 states and 155 transitions. [2024-11-08 18:43:36,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:43:36,159 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.28) internal successors, (57), 26 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-08 18:43:36,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:36,160 INFO L225 Difference]: With dead ends: 133 [2024-11-08 18:43:36,160 INFO L226 Difference]: Without dead ends: 133 [2024-11-08 18:43:36,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=147, Invalid=1044, Unknown=3, NotChecked=66, Total=1260 [2024-11-08 18:43:36,161 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 76 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:36,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 670 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 658 Invalid, 0 Unknown, 78 Unchecked, 5.0s Time] [2024-11-08 18:43:36,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-08 18:43:36,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2024-11-08 18:43:36,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 103 states have (on average 1.4077669902912622) internal successors, (145), 124 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:36,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 145 transitions. [2024-11-08 18:43:36,165 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 145 transitions. Word has length 29 [2024-11-08 18:43:36,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:36,165 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 145 transitions. [2024-11-08 18:43:36,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.28) internal successors, (57), 26 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:43:36,166 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 145 transitions. [2024-11-08 18:43:36,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-08 18:43:36,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:36,167 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:36,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-08 18:43:36,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:36,367 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:43:36,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:36,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1179624013, now seen corresponding path program 1 times [2024-11-08 18:43:36,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:43:36,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2009660935] [2024-11-08 18:43:36,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:36,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:36,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:36,370 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:36,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-08 18:43:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:36,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-08 18:43:36,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:36,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:43:36,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:43:36,831 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-08 18:43:36,832 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 [2024-11-08 18:43:36,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:36,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:36,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:37,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:37,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:43:37,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-08 18:43:37,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:43:37,594 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-08 18:43:37,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2024-11-08 18:43:37,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-08 18:43:37,850 INFO L349 Elim1Store]: treesize reduction 60, result has 34.1 percent of original size [2024-11-08 18:43:37,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 44 [2024-11-08 18:43:37,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2024-11-08 18:43:38,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2024-11-08 18:43:38,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-08 18:43:38,292 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:38,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:43:38,659 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1097 (_ BitVec 1)) (v_ArrVal_1099 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_24| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_24|))) (= (_ bv0 1) (bvadd (_ bv1 1) (select (store |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_24| v_ArrVal_1097) (select (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_24| v_ArrVal_1099) |c_ULTIMATE.start_create_~head~0#1.base|) (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))))))) is different from false [2024-11-08 18:43:40,416 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1097 (_ BitVec 1)) (v_ArrVal_1096 (_ BitVec 64)) (v_ArrVal_1099 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_24| (_ BitVec 64)) (v_ArrVal_1094 (Array (_ BitVec 64) (_ BitVec 64)))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (select (store |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_24| v_ArrVal_1097) (select (select (store (let ((.cse0 (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start___list_add_~new#1.base| v_ArrVal_1094))) (store .cse0 |c_ULTIMATE.start___list_add_~prev#1.base| (store (select .cse0 |c_ULTIMATE.start___list_add_~prev#1.base|) |c_ULTIMATE.start___list_add_~prev#1.offset| v_ArrVal_1096))) |v_ULTIMATE.start_create_~ptr~0#1.base_24| v_ArrVal_1099) |c_ULTIMATE.start_create_~head~0#1.base|) (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_24|))))) is different from false [2024-11-08 18:43:40,519 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1097 (_ BitVec 1)) (v_ArrVal_1096 (_ BitVec 64)) (v_ArrVal_1099 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_24| (_ BitVec 64)) (v_ArrVal_1094 (Array (_ BitVec 64) (_ BitVec 64)))) (or (= (_ bv0 1) (bvadd (_ bv1 1) (select (store |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_24| v_ArrVal_1097) (select (select (store (let ((.cse0 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start___list_add_~next#1.base| (store (select |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start___list_add_~next#1.base|) (bvadd (_ bv8 64) |c_ULTIMATE.start___list_add_~next#1.offset|) |c_ULTIMATE.start___list_add_~new#1.base|)) |c_ULTIMATE.start___list_add_~new#1.base| v_ArrVal_1094))) (store .cse0 |c_ULTIMATE.start___list_add_~prev#1.base| (store (select .cse0 |c_ULTIMATE.start___list_add_~prev#1.base|) |c_ULTIMATE.start___list_add_~prev#1.offset| v_ArrVal_1096))) |v_ULTIMATE.start_create_~ptr~0#1.base_24| v_ArrVal_1099) |c_ULTIMATE.start_create_~head~0#1.base|) (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_24|))))) is different from false [2024-11-08 18:43:44,592 INFO L349 Elim1Store]: treesize reduction 118, result has 59.2 percent of original size [2024-11-08 18:43:44,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 272 treesize of output 358 [2024-11-08 18:43:44,800 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1090 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1096 (_ BitVec 64)) (v_ArrVal_1099 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1089 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_24| (_ BitVec 64)) (v_ArrVal_1094 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (let ((.cse3 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (select (select (store (let ((.cse4 (select (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1090) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse1 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse4 .cse3 |c_ULTIMATE.start_create_~ptr~0#1.base|)) |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1094)) (.cse2 (select .cse4 .cse3))) (store .cse1 .cse2 (store (select .cse1 .cse2) (select (select (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1089) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3) v_ArrVal_1096)))) |v_ULTIMATE.start_create_~ptr~0#1.base_24| v_ArrVal_1099) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3)))) (or (= |c_ULTIMATE.start_create_~head~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_24|) (= |c_ULTIMATE.start_create_~ptr~0#1.base| .cse0) (= |c_ULTIMATE.start_create_~ptr~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_24|) (= |c_ULTIMATE.start_create_~head~0#1.base| .cse0)))) is different from false [2024-11-08 18:43:54,898 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:43:55,151 INFO L349 Elim1Store]: treesize reduction 15, result has 67.4 percent of original size [2024-11-08 18:43:55,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 1827 treesize of output 1306 [2024-11-08 18:43:55,226 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:43:55,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 395 treesize of output 325 [2024-11-08 18:43:55,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 533 treesize of output 479 [2024-11-08 18:43:55,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 201 treesize of output 185 [2024-11-08 18:43:55,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 341 treesize of output 309 [2024-11-08 18:43:55,474 INFO L349 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2024-11-08 18:43:55,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 621 treesize of output 597 [2024-11-08 18:43:55,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 279 treesize of output 219 [2024-11-08 18:44:03,851 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2024-11-08 18:44:03,852 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:44:03,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009660935] [2024-11-08 18:44:03,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009660935] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:44:03,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:44:03,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 32 [2024-11-08 18:44:03,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274086142] [2024-11-08 18:44:03,852 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:44:03,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-08 18:44:03,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:44:03,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-08 18:44:03,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=664, Unknown=39, NotChecked=228, Total=1056 [2024-11-08 18:44:03,854 INFO L87 Difference]: Start difference. First operand 125 states and 145 transitions. Second operand has 33 states, 32 states have (on average 1.90625) internal successors, (61), 33 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:44:20,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:44:25,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-08 18:44:29,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-08 18:44:33,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-08 18:44:39,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-08 18:44:46,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-08 18:44:59,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-08 18:45:00,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-08 18:45:14,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-08 18:45:19,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:45:45,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:45:45,269 INFO L93 Difference]: Finished difference Result 150 states and 173 transitions. [2024-11-08 18:45:45,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-08 18:45:45,271 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.90625) internal successors, (61), 33 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-08 18:45:45,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:45:45,272 INFO L225 Difference]: With dead ends: 150 [2024-11-08 18:45:45,272 INFO L226 Difference]: Without dead ends: 150 [2024-11-08 18:45:45,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 74.1s TimeCoverageRelationStatistics Valid=398, Invalid=1889, Unknown=81, NotChecked=388, Total=2756 [2024-11-08 18:45:45,274 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 151 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 29 mSolverCounterUnsat, 39 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 39 IncrementalHoareTripleChecker+Unknown, 340 IncrementalHoareTripleChecker+Unchecked, 49.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:45:45,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 775 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 610 Invalid, 39 Unknown, 340 Unchecked, 49.9s Time] [2024-11-08 18:45:45,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-08 18:45:45,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 149. [2024-11-08 18:45:45,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 127 states have (on average 1.3543307086614174) internal successors, (172), 148 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:45:45,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 172 transitions. [2024-11-08 18:45:45,279 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 172 transitions. Word has length 31 [2024-11-08 18:45:45,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:45:45,279 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 172 transitions. [2024-11-08 18:45:45,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.90625) internal successors, (61), 33 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:45:45,280 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 172 transitions. [2024-11-08 18:45:45,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-08 18:45:45,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:45:45,280 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:45:45,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-08 18:45:45,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:45,481 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:45:45,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:45:45,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1179624012, now seen corresponding path program 1 times [2024-11-08 18:45:45,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:45:45,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1853110633] [2024-11-08 18:45:45,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:45:45,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:45:45,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:45:45,483 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:45:45,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-08 18:45:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:45:45,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-08 18:45:45,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:45:45,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:45:45,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:45:46,096 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-08 18:45:46,096 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 [2024-11-08 18:45:46,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 18:45:46,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:45:46,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:45:46,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:45:46,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:45:47,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-08 18:45:47,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-08 18:45:47,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:45:48,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:45:48,200 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-08 18:45:48,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 54 [2024-11-08 18:45:48,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-08 18:45:48,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 24 [2024-11-08 18:45:48,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-08 18:45:48,976 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-08 18:45:48,976 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 1 case distinctions, treesize of input 18 treesize of output 21 [2024-11-08 18:45:49,130 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2024-11-08 18:45:49,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2024-11-08 18:45:49,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-08 18:45:49,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-08 18:45:49,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-08 18:45:49,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-08 18:45:50,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 18:45:50,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:45:50,364 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:45:50,364 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:45:51,671 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (bvule (bvadd (_ bv8 64) (select (select (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0)))) (forall ((v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse0))) (bvule .cse1 (bvadd (_ bv8 64) .cse1)))))) is different from false [2024-11-08 18:45:56,197 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))) (forall ((v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (select (select (store (let ((.cse1 (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start___list_add_~new#1.base| v_ArrVal_1235))) (store .cse1 |c_ULTIMATE.start___list_add_~prev#1.base| (store (select .cse1 |c_ULTIMATE.start___list_add_~prev#1.base|) |c_ULTIMATE.start___list_add_~prev#1.offset| |c_ULTIMATE.start___list_add_~new#1.offset|))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse2))) (bvule .cse0 (bvadd (_ bv8 64) .cse0)))))) (forall ((v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64)) (v_ArrVal_1236 (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))) (forall ((v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1239 (_ BitVec 64))) (bvule (bvadd (_ bv8 64) (select (select (store (let ((.cse3 (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start___list_add_~new#1.base| v_ArrVal_1235))) (store .cse3 |c_ULTIMATE.start___list_add_~prev#1.base| (store (select .cse3 |c_ULTIMATE.start___list_add_~prev#1.base|) |c_ULTIMATE.start___list_add_~prev#1.offset| |c_ULTIMATE.start___list_add_~new#1.offset|))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse2)) (select (store |c_#length| |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1239) (select (select (store (let ((.cse4 (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start___list_add_~new#1.base| v_ArrVal_1234))) (store .cse4 |c_ULTIMATE.start___list_add_~prev#1.base| (store (select .cse4 |c_ULTIMATE.start___list_add_~prev#1.base|) |c_ULTIMATE.start___list_add_~prev#1.offset| v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse2)))))))) is different from false [2024-11-08 18:45:57,088 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse6 (bvadd (_ bv8 64) |c_ULTIMATE.start___list_add_~next#1.offset|))) (let ((.cse2 (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start___list_add_~next#1.base| (store (select |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start___list_add_~next#1.base|) .cse6 |c_ULTIMATE.start___list_add_~new#1.offset|))) (.cse3 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))) (forall ((v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (select (select (store (let ((.cse1 (store .cse2 |c_ULTIMATE.start___list_add_~new#1.base| v_ArrVal_1235))) (store .cse1 |c_ULTIMATE.start___list_add_~prev#1.base| (store (select .cse1 |c_ULTIMATE.start___list_add_~prev#1.base|) |c_ULTIMATE.start___list_add_~prev#1.offset| |c_ULTIMATE.start___list_add_~new#1.offset|))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3))) (bvule .cse0 (bvadd .cse0 (_ bv8 64))))))) (forall ((v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64)) (v_ArrVal_1236 (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))) (forall ((v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1239 (_ BitVec 64))) (bvule (bvadd (select (select (store (let ((.cse4 (store .cse2 |c_ULTIMATE.start___list_add_~new#1.base| v_ArrVal_1235))) (store .cse4 |c_ULTIMATE.start___list_add_~prev#1.base| (store (select .cse4 |c_ULTIMATE.start___list_add_~prev#1.base|) |c_ULTIMATE.start___list_add_~prev#1.offset| |c_ULTIMATE.start___list_add_~new#1.offset|))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3) (_ bv8 64)) (select (store |c_#length| |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1239) (select (select (store (let ((.cse5 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start___list_add_~next#1.base| (store (select |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start___list_add_~next#1.base|) .cse6 |c_ULTIMATE.start___list_add_~new#1.base|)) |c_ULTIMATE.start___list_add_~new#1.base| v_ArrVal_1234))) (store .cse5 |c_ULTIMATE.start___list_add_~prev#1.base| (store (select .cse5 |c_ULTIMATE.start___list_add_~prev#1.base|) |c_ULTIMATE.start___list_add_~prev#1.offset| v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3))))))))) is different from false [2024-11-08 18:45:57,862 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse6 (bvadd (_ bv8 64) |c_ULTIMATE.start_list_add_tail_~head#1.offset|))) (let ((.cse2 (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_list_add_tail_~head#1.base| (store (select |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_list_add_tail_~head#1.base|) .cse6 |c_ULTIMATE.start_list_add_tail_~new#1.offset|))) (.cse3 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))) (forall ((v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (select (select (store (let ((.cse1 (store .cse2 |c_ULTIMATE.start_list_add_tail_~new#1.base| v_ArrVal_1235))) (store .cse1 |c_ULTIMATE.start_list_add_tail_#t~mem3#1.base| (store (select .cse1 |c_ULTIMATE.start_list_add_tail_#t~mem3#1.base|) |c_ULTIMATE.start_list_add_tail_#t~mem3#1.offset| |c_ULTIMATE.start_list_add_tail_~new#1.offset|))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3))) (bvule .cse0 (bvadd (_ bv8 64) .cse0)))))) (forall ((v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64)) (v_ArrVal_1236 (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))) (forall ((v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1239 (_ BitVec 64))) (bvule (bvadd (_ bv8 64) (select (select (store (let ((.cse4 (store .cse2 |c_ULTIMATE.start_list_add_tail_~new#1.base| v_ArrVal_1235))) (store .cse4 |c_ULTIMATE.start_list_add_tail_#t~mem3#1.base| (store (select .cse4 |c_ULTIMATE.start_list_add_tail_#t~mem3#1.base|) |c_ULTIMATE.start_list_add_tail_#t~mem3#1.offset| |c_ULTIMATE.start_list_add_tail_~new#1.offset|))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3)) (select (store |c_#length| |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1239) (select (select (store (let ((.cse5 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_list_add_tail_~head#1.base| (store (select |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_list_add_tail_~head#1.base|) .cse6 |c_ULTIMATE.start_list_add_tail_~new#1.base|)) |c_ULTIMATE.start_list_add_tail_~new#1.base| v_ArrVal_1234))) (store .cse5 |c_ULTIMATE.start_list_add_tail_#t~mem3#1.base| (store (select .cse5 |c_ULTIMATE.start_list_add_tail_#t~mem3#1.base|) |c_ULTIMATE.start_list_add_tail_#t~mem3#1.offset| v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse3))))))))) is different from false [2024-11-08 18:46:26,303 WARN L286 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 40 DAG size of output: 35 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-08 18:46:26,304 INFO L349 Elim1Store]: treesize reduction 10, result has 83.6 percent of original size [2024-11-08 18:46:26,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 369 treesize of output 411 [2024-11-08 18:46:33,780 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (bvadd (_ bv4 64) |c_ULTIMATE.start_create_~ptr~0#1.offset|)) (.cse4 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((v_prenex_4 (_ BitVec 64))) (or (= |c_ULTIMATE.start_create_~ptr~0#1.base| v_prenex_4) (= |c_ULTIMATE.start_create_~head~0#1.base| v_prenex_4) (forall ((v_prenex_2 (Array (_ BitVec 64) (_ BitVec 64))) (v_prenex_3 (Array (_ BitVec 64) (_ BitVec 64))) (v_prenex_1 (Array (_ BitVec 64) (_ BitVec 64))) (v_prenex_5 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (select (select (store (let ((.cse3 (select (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~ptr~0#1.base| v_prenex_3) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse1 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse3 .cse4 .cse5)) |c_ULTIMATE.start_create_~ptr~0#1.base| v_prenex_2)) (.cse2 (select (select (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~ptr~0#1.base| v_prenex_1) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))) (store .cse1 .cse2 (store (select .cse1 .cse2) (select .cse3 .cse4) .cse5)))) v_prenex_4 v_prenex_5) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))) (bvule .cse0 (bvadd .cse0 (_ bv8 64))))))) (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64)) (v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1236 (_ BitVec 64)) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1239 (_ BitVec 64))) (or (= |c_ULTIMATE.start_create_~ptr~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (= |c_ULTIMATE.start_create_~head~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (let ((.cse9 (select (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse11 (select (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse7 (select .cse11 .cse4)) (.cse8 (select .cse9 .cse4))) (bvule (bvadd (_ bv8 64) (select (select (store (let ((.cse6 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse9 .cse4 .cse5)) |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1235))) (store .cse6 .cse7 (store (select .cse6 .cse7) .cse8 .cse5))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4)) (select (store |c_#length| |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1239) (select (select (store (let ((.cse10 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse11 .cse4 |c_ULTIMATE.start_create_~ptr~0#1.base|)) |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1234))) (store .cse10 .cse7 (store (select .cse10 .cse7) .cse8 v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))))))))) is different from false [2024-11-08 18:46:34,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1059 treesize of output 981 [2024-11-08 18:46:51,447 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (= |v_ULTIMATE.start_create_~ptr~0#1.base_30| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (= |c_ULTIMATE.start_create_~head~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse6 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse3 (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse1 (select .cse3 .cse4)) (.cse2 (select .cse6 .cse4))) (or (forall ((v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1236 (_ BitVec 64))) (= (select (select (store (let ((.cse0 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse3 .cse4 |v_ULTIMATE.start_create_~ptr~0#1.base_30|)) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1234))) (store .cse0 .cse1 (store (select .cse0 .cse1) .cse2 v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4) |v_ULTIMATE.start_create_~ptr~0#1.base_30|)) (= (_ bv0 64) (bvadd (_ bv8 64) (select (select (store (let ((.cse5 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse6 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1235))) (store .cse5 .cse1 (store (select .cse5 .cse1) .cse2 (_ bv4 64)))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))))))))))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (= |v_ULTIMATE.start_create_~ptr~0#1.base_30| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (= |c_ULTIMATE.start_create_~head~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (bvule (bvadd (_ bv8 64) (select (select (store (let ((.cse9 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse7 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse9 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1235)) (.cse8 (select (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))) (store .cse7 .cse8 (store (select .cse7 .cse8) (select .cse9 .cse4) (_ bv4 64))))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4)) (_ bv24 64))))))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1236 (_ BitVec 64)) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse15 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse13 (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse11 (select .cse13 .cse4)) (.cse12 (select .cse15 .cse4))) (or (not (= (select (select (store (let ((.cse10 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse13 .cse4 |v_ULTIMATE.start_create_~ptr~0#1.base_30|)) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1234))) (store .cse10 .cse11 (store (select .cse10 .cse11) .cse12 v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4) |v_ULTIMATE.start_create_~ptr~0#1.base_28|)) (= (_ bv0 64) (bvadd (_ bv8 64) (select (select (store (let ((.cse14 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse15 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1235))) (store .cse14 .cse11 (store (select .cse14 .cse11) .cse12 (_ bv4 64)))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))))))) (= |v_ULTIMATE.start_create_~ptr~0#1.base_30| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (= |c_ULTIMATE.start_create_~head~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse21 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse19 (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse17 (select .cse19 .cse4)) (.cse18 (select .cse21 .cse4))) (or (forall ((v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1236 (_ BitVec 64))) (not (= (select (select (store (let ((.cse16 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse19 .cse4 |v_ULTIMATE.start_create_~ptr~0#1.base_30|)) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1234))) (store .cse16 .cse17 (store (select .cse16 .cse17) .cse18 v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4) |v_ULTIMATE.start_create_~ptr~0#1.base_28|))) (= (_ bv0 64) (bvadd (_ bv8 64) (select (select (store (let ((.cse20 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse21 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1235))) (store .cse20 .cse17 (store (select .cse20 .cse17) .cse18 (_ bv4 64)))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))))))) (= |v_ULTIMATE.start_create_~ptr~0#1.base_30| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (= |c_ULTIMATE.start_create_~head~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((v_prenex_4 (_ BitVec 64)) (v_prenex_2 (Array (_ BitVec 64) (_ BitVec 64))) (v_prenex_3 (Array (_ BitVec 64) (_ BitVec 64))) (v_prenex_1 (Array (_ BitVec 64) (_ BitVec 64))) (v_prenex_5 (Array (_ BitVec 64) (_ BitVec 64)))) (or (= |c_ULTIMATE.start_create_~head~0#1.base| v_prenex_4) (let ((.cse22 (select (select (store (let ((.cse25 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_prenex_3) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse23 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse25 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_prenex_2)) (.cse24 (select (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_prenex_1) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))) (store .cse23 .cse24 (store (select .cse23 .cse24) (select .cse25 .cse4) (_ bv4 64))))) v_prenex_4 v_prenex_5) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))) (bvule .cse22 (bvadd (_ bv8 64) .cse22))))))))) is different from true [2024-11-08 18:46:57,264 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:46:57,640 INFO L349 Elim1Store]: treesize reduction 53, result has 62.4 percent of original size [2024-11-08 18:46:57,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 1520 treesize of output 1243 [2024-11-08 18:46:57,790 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:46:57,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 472 treesize of output 452 [2024-11-08 18:46:57,859 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:46:57,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 359 treesize of output 279 [2024-11-08 18:46:57,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 405 treesize of output 345 [2024-11-08 18:46:57,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 184 [2024-11-08 18:46:57,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 44 [2024-11-08 18:46:57,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 64 [2024-11-08 18:46:58,104 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:46:58,105 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:46:58,128 INFO L349 Elim1Store]: treesize reduction 45, result has 2.2 percent of original size [2024-11-08 18:46:58,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 1157 treesize of output 1 [2024-11-08 18:46:58,146 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:46:58,147 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:46:58,174 INFO L349 Elim1Store]: treesize reduction 140, result has 0.7 percent of original size [2024-11-08 18:46:58,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 1042 treesize of output 1 [2024-11-08 18:46:58,192 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:46:58,193 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:46:58,215 INFO L349 Elim1Store]: treesize reduction 45, result has 2.2 percent of original size [2024-11-08 18:46:58,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 1206 treesize of output 1 [2024-11-08 18:46:58,228 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:46:58,229 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:46:58,251 INFO L349 Elim1Store]: treesize reduction 45, result has 2.2 percent of original size [2024-11-08 18:46:58,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 1206 treesize of output 1 [2024-11-08 18:46:59,831 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2024-11-08 18:46:59,831 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:46:59,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853110633] [2024-11-08 18:46:59,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853110633] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:46:59,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:46:59,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2024-11-08 18:46:59,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026760585] [2024-11-08 18:46:59,831 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:46:59,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-08 18:46:59,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:46:59,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-08 18:46:59,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=653, Unknown=11, NotChecked=342, Total=1122 [2024-11-08 18:46:59,833 INFO L87 Difference]: Start difference. First operand 149 states and 172 transitions. Second operand has 34 states, 33 states have (on average 1.8484848484848484) internal successors, (61), 34 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:47:05,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:47:11,657 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse14 (select |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse4 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (let ((.cse9 (select .cse14 .cse4))) (let ((.cse10 (bvadd (_ bv8 64) .cse9)) (.cse8 (select |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base|))) (and (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (= |v_ULTIMATE.start_create_~ptr~0#1.base_30| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (= |c_ULTIMATE.start_create_~head~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse6 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse3 (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse1 (select .cse3 .cse4)) (.cse2 (select .cse6 .cse4))) (or (forall ((v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1236 (_ BitVec 64))) (= (select (select (store (let ((.cse0 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse3 .cse4 |v_ULTIMATE.start_create_~ptr~0#1.base_30|)) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1234))) (store .cse0 .cse1 (store (select .cse0 .cse1) .cse2 v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4) |v_ULTIMATE.start_create_~ptr~0#1.base_30|)) (= (_ bv0 64) (bvadd (_ bv8 64) (select (select (store (let ((.cse5 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse6 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1235))) (store .cse5 .cse1 (store (select .cse5 .cse1) .cse2 (_ bv4 64)))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))))))))))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))) (forall ((v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse7 (select (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))) (bvule .cse7 (bvadd (_ bv8 64) .cse7)))))) (= (_ bv0 64) |c_ULTIMATE.start_create_~head~0#1.offset|) (= |c_ULTIMATE.start_create_~head~0#1.base| (select .cse8 (_ bv8 64))) (bvule .cse9 .cse10) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| |c_ULTIMATE.start_create_~head~0#1.base|))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (= |v_ULTIMATE.start_create_~ptr~0#1.base_30| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (= |c_ULTIMATE.start_create_~head~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (bvule (bvadd (_ bv8 64) (select (select (store (let ((.cse13 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse11 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse13 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1235)) (.cse12 (select (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))) (store .cse11 .cse12 (store (select .cse11 .cse12) (select .cse13 .cse4) (_ bv4 64))))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4)) (_ bv24 64))))))) (= (_ bv0 64) (select .cse14 (_ bv8 64))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (forall ((v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1239 (_ BitVec 64))) (bvule (bvadd (_ bv8 64) (select (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4)) (select (store |c_#length| |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1239) (select (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1236 (_ BitVec 64)) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse20 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse18 (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse16 (select .cse18 .cse4)) (.cse17 (select .cse20 .cse4))) (or (not (= (select (select (store (let ((.cse15 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse18 .cse4 |v_ULTIMATE.start_create_~ptr~0#1.base_30|)) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1234))) (store .cse15 .cse16 (store (select .cse15 .cse16) .cse17 v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4) |v_ULTIMATE.start_create_~ptr~0#1.base_28|)) (= (_ bv0 64) (bvadd (_ bv8 64) (select (select (store (let ((.cse19 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse20 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1235))) (store .cse19 .cse16 (store (select .cse19 .cse16) .cse17 (_ bv4 64)))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))))))) (= |v_ULTIMATE.start_create_~ptr~0#1.base_30| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (= |c_ULTIMATE.start_create_~head~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))))) (bvule .cse10 (select |c_#length| (select .cse8 .cse4))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse26 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse24 (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse22 (select .cse24 .cse4)) (.cse23 (select .cse26 .cse4))) (or (forall ((v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1236 (_ BitVec 64))) (not (= (select (select (store (let ((.cse21 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse24 .cse4 |v_ULTIMATE.start_create_~ptr~0#1.base_30|)) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1234))) (store .cse21 .cse22 (store (select .cse21 .cse22) .cse23 v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4) |v_ULTIMATE.start_create_~ptr~0#1.base_28|))) (= (_ bv0 64) (bvadd (_ bv8 64) (select (select (store (let ((.cse25 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse26 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1235))) (store .cse25 .cse22 (store (select .cse25 .cse22) .cse23 (_ bv4 64)))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))))))) (= |v_ULTIMATE.start_create_~ptr~0#1.base_30| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (= |c_ULTIMATE.start_create_~head~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((v_prenex_4 (_ BitVec 64)) (v_prenex_2 (Array (_ BitVec 64) (_ BitVec 64))) (v_prenex_3 (Array (_ BitVec 64) (_ BitVec 64))) (v_prenex_1 (Array (_ BitVec 64) (_ BitVec 64))) (v_prenex_5 (Array (_ BitVec 64) (_ BitVec 64)))) (or (= |c_ULTIMATE.start_create_~head~0#1.base| v_prenex_4) (let ((.cse27 (select (select (store (let ((.cse30 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_prenex_3) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse28 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse30 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_prenex_2)) (.cse29 (select (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_prenex_1) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))) (store .cse28 .cse29 (store (select .cse28 .cse29) (select .cse30 .cse4) (_ bv4 64))))) v_prenex_4 v_prenex_5) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))) (bvule .cse27 (bvadd (_ bv8 64) .cse27))))))))))) is different from true [2024-11-08 18:47:15,691 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (= |v_ULTIMATE.start_create_~ptr~0#1.base_30| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (= |c_ULTIMATE.start_create_~head~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse6 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse3 (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse1 (select .cse3 .cse4)) (.cse2 (select .cse6 .cse4))) (or (forall ((v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1236 (_ BitVec 64))) (= (select (select (store (let ((.cse0 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse3 .cse4 |v_ULTIMATE.start_create_~ptr~0#1.base_30|)) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1234))) (store .cse0 .cse1 (store (select .cse0 .cse1) .cse2 v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4) |v_ULTIMATE.start_create_~ptr~0#1.base_30|)) (= (_ bv0 64) (bvadd (_ bv8 64) (select (select (store (let ((.cse5 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse6 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1235))) (store .cse5 .cse1 (store (select .cse5 .cse1) .cse2 (_ bv4 64)))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))))))))))) (= (_ bv0 64) |c_ULTIMATE.start_create_~head~0#1.offset|) (= |c_ULTIMATE.start_create_~head~0#1.base| (select (select |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base|) (_ bv8 64))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| |c_ULTIMATE.start_create_~head~0#1.base|))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (= |v_ULTIMATE.start_create_~ptr~0#1.base_30| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (= |c_ULTIMATE.start_create_~head~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (bvule (bvadd (_ bv8 64) (select (select (store (let ((.cse9 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse7 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse9 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1235)) (.cse8 (select (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))) (store .cse7 .cse8 (store (select .cse7 .cse8) (select .cse9 .cse4) (_ bv4 64))))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4)) (_ bv24 64))))))) (= (_ bv0 64) (select (select |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base|) (_ bv8 64))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1236 (_ BitVec 64)) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse15 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse13 (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse11 (select .cse13 .cse4)) (.cse12 (select .cse15 .cse4))) (or (not (= (select (select (store (let ((.cse10 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse13 .cse4 |v_ULTIMATE.start_create_~ptr~0#1.base_30|)) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1234))) (store .cse10 .cse11 (store (select .cse10 .cse11) .cse12 v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4) |v_ULTIMATE.start_create_~ptr~0#1.base_28|)) (= (_ bv0 64) (bvadd (_ bv8 64) (select (select (store (let ((.cse14 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse15 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1235))) (store .cse14 .cse11 (store (select .cse14 .cse11) .cse12 (_ bv4 64)))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))))))) (= |v_ULTIMATE.start_create_~ptr~0#1.base_30| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (= |c_ULTIMATE.start_create_~head~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse21 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse19 (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse17 (select .cse19 .cse4)) (.cse18 (select .cse21 .cse4))) (or (forall ((v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1236 (_ BitVec 64))) (not (= (select (select (store (let ((.cse16 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse19 .cse4 |v_ULTIMATE.start_create_~ptr~0#1.base_30|)) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1234))) (store .cse16 .cse17 (store (select .cse16 .cse17) .cse18 v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4) |v_ULTIMATE.start_create_~ptr~0#1.base_28|))) (= (_ bv0 64) (bvadd (_ bv8 64) (select (select (store (let ((.cse20 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse21 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_ArrVal_1235))) (store .cse20 .cse17 (store (select .cse20 .cse17) .cse18 (_ bv4 64)))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))))))) (= |v_ULTIMATE.start_create_~ptr~0#1.base_30| |v_ULTIMATE.start_create_~ptr~0#1.base_28|) (= |c_ULTIMATE.start_create_~head~0#1.base| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))))) (forall ((|v_ULTIMATE.start_create_~ptr~0#1.base_30| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_30|))) (forall ((v_prenex_4 (_ BitVec 64)) (v_prenex_2 (Array (_ BitVec 64) (_ BitVec 64))) (v_prenex_3 (Array (_ BitVec 64) (_ BitVec 64))) (v_prenex_1 (Array (_ BitVec 64) (_ BitVec 64))) (v_prenex_5 (Array (_ BitVec 64) (_ BitVec 64)))) (or (= |c_ULTIMATE.start_create_~head~0#1.base| v_prenex_4) (let ((.cse22 (select (select (store (let ((.cse25 (select (store |c_#memory_$Pointer$#0.offset| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_prenex_3) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse23 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse25 .cse4 (_ bv4 64))) |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_prenex_2)) (.cse24 (select (select (store |c_#memory_$Pointer$#0.base| |v_ULTIMATE.start_create_~ptr~0#1.base_30| v_prenex_1) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))) (store .cse23 .cse24 (store (select .cse23 .cse24) (select .cse25 .cse4) (_ bv4 64))))) v_prenex_4 v_prenex_5) |c_ULTIMATE.start_create_~head~0#1.base|) .cse4))) (bvule .cse22 (bvadd (_ bv8 64) .cse22))))))))) is different from true [2024-11-08 18:47:18,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:47:20,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:47:39,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:47:40,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:47:43,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:47:52,486 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse11 (select |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse2 (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| |c_ULTIMATE.start_create_~head~0#1.base|))))) (let ((.cse0 (select |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse4 (not .cse2)) (.cse8 (bvadd (_ bv4 64) |c_ULTIMATE.start_create_~ptr~0#1.offset|)) (.cse1 (bvadd (_ bv8 64) |c_ULTIMATE.start_create_~head~0#1.offset|)) (.cse3 (select .cse11 (_ bv8 64)))) (and (= (select .cse0 (_ bv0 64)) (_ bv4 64)) (= (_ bv0 64) |c_ULTIMATE.start_create_~head~0#1.offset|) (forall ((v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (bvule (bvadd (_ bv8 64) (select (select (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse1)))) .cse2 (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| .cse3))) (not (= |c_ULTIMATE.start_create_~head~0#1.base| .cse3)) (= (_ bv4 64) (select .cse0 (_ bv8 64))) (not (= |c_ULTIMATE.start_create_~ptr~0#1.base| .cse3)) (or .cse4 (let ((.cse6 (select .cse11 .cse1)) (.cse7 (select .cse0 .cse1)) (.cse9 (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse0 .cse1 .cse8)))) (and (forall ((v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64)) (v_ArrVal_1236 (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))) (forall ((v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1239 (_ BitVec 64))) (bvule (bvadd (_ bv8 64) (select (select (store (let ((.cse5 (store .cse9 |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1235))) (store .cse5 .cse6 (store (select .cse5 .cse6) .cse7 .cse8))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse1)) (select (store |c_#length| |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1239) (select (select (store (let ((.cse10 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse11 .cse1 |c_ULTIMATE.start_create_~ptr~0#1.base|)) |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1234))) (store .cse10 .cse6 (store (select .cse10 .cse6) .cse7 v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))) (forall ((v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse12 (select (select (store (let ((.cse13 (store .cse9 |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1235))) (store .cse13 .cse6 (store (select .cse13 .cse6) .cse7 .cse8))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse1))) (bvule .cse12 (bvadd (_ bv8 64) .cse12))))))))) (not (= |c_ULTIMATE.start_create_~head~0#1.base| |c_ULTIMATE.start_create_~ptr~0#1.base|)) (forall ((v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse14 (select (select (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse1))) (bvule .cse14 (bvadd (_ bv8 64) .cse14)))) (or .cse4 (and (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1234 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64)) (v_ArrVal_1236 (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))) (forall ((v_ArrVal_1242 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1239 (_ BitVec 64))) (let ((.cse18 (select (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|)) (.cse20 (select (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse16 (select .cse20 .cse1)) (.cse17 (select .cse18 .cse1))) (bvule (bvadd (_ bv8 64) (select (select (store (let ((.cse15 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse18 .cse1 .cse8)) |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1235))) (store .cse15 .cse16 (store (select .cse15 .cse16) .cse17 .cse8))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse1)) (select (store |c_#length| |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1239) (select (select (store (let ((.cse19 (store (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse20 .cse1 |c_ULTIMATE.start_create_~ptr~0#1.base|)) |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1234))) (store .cse19 .cse16 (store (select .cse19 .cse16) .cse17 v_ArrVal_1236))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1242) |c_ULTIMATE.start_create_~head~0#1.base|) .cse1)))))))) (forall ((v_ArrVal_1227 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1235 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1226 (Array (_ BitVec 64) (_ BitVec 64))) (|v_ULTIMATE.start_create_~ptr~0#1.base_28| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_create_~ptr~0#1.base_28|))) (forall ((v_ArrVal_1243 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse21 (select (select (store (let ((.cse24 (select (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1226) |c_ULTIMATE.start_create_~head~0#1.base|))) (let ((.cse22 (store (store |c_#memory_$Pointer$#0.offset| |c_ULTIMATE.start_create_~head~0#1.base| (store .cse24 .cse1 .cse8)) |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1235)) (.cse23 (select (select (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_create_~ptr~0#1.base| v_ArrVal_1227) |c_ULTIMATE.start_create_~head~0#1.base|) .cse1))) (store .cse22 .cse23 (store (select .cse22 .cse23) (select .cse24 .cse1) .cse8)))) |v_ULTIMATE.start_create_~ptr~0#1.base_28| v_ArrVal_1243) |c_ULTIMATE.start_create_~head~0#1.base|) .cse1))) (bvule .cse21 (bvadd (_ bv8 64) .cse21)))))))) (= (_ bv24 64) (select |c_#length| .cse3))))) is different from true [2024-11-08 18:47:59,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:48:06,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:48:12,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:48:15,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:48:17,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:48:28,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:48:38,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:48:43,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-08 18:48:56,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:48:56,739 INFO L93 Difference]: Finished difference Result 149 states and 171 transitions. [2024-11-08 18:48:56,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 18:48:56,746 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.8484848484848484) internal successors, (61), 34 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-08 18:48:56,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:48:56,747 INFO L225 Difference]: With dead ends: 149 [2024-11-08 18:48:56,747 INFO L226 Difference]: Without dead ends: 149 [2024-11-08 18:48:56,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 67.7s TimeCoverageRelationStatistics Valid=187, Invalid=1025, Unknown=14, NotChecked=666, Total=1892 [2024-11-08 18:48:56,748 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 36 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 590 IncrementalHoareTripleChecker+Unchecked, 83.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:48:56,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 848 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 834 Invalid, 0 Unknown, 590 Unchecked, 83.2s Time] [2024-11-08 18:48:56,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-08 18:48:56,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-11-08 18:48:56,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 127 states have (on average 1.3464566929133859) internal successors, (171), 148 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:48:56,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 171 transitions. [2024-11-08 18:48:56,754 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 171 transitions. Word has length 31 [2024-11-08 18:48:56,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:48:56,755 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 171 transitions. [2024-11-08 18:48:56,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.8484848484848484) internal successors, (61), 34 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:48:56,755 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 171 transitions. [2024-11-08 18:48:56,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-08 18:48:56,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:48:56,756 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:48:56,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-08 18:48:56,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:48:56,957 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-08 18:48:56,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:48:56,957 INFO L85 PathProgramCache]: Analyzing trace with hash -399698262, now seen corresponding path program 1 times [2024-11-08 18:48:56,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:48:56,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [236558501] [2024-11-08 18:48:56,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:48:56,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:48:56,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:48:56,959 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:48:56,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0941720-3e24-4d83-99de-9eba620c6c32/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-08 18:48:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:48:57,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-08 18:48:57,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:48:57,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:48:57,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:48:57,564 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 [2024-11-08 18:48:57,655 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-08 18:48:57,655 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 [2024-11-08 18:48:57,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:48:57,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:48:57,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:48:57,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-08 18:48:58,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:48:58,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:48:59,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:48:59,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-08 18:48:59,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:48:59,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2024-11-08 18:49:00,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-08 18:49:02,023 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:49:02,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 22 [2024-11-08 18:49:02,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2024-11-08 18:49:02,384 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:49:02,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:49:05,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 168 [2024-11-08 18:49:18,050 WARN L286 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 205 DAG size of output: 102 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-08 18:49:18,050 INFO L349 Elim1Store]: treesize reduction 431, result has 31.9 percent of original size [2024-11-08 18:49:18,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 38 case distinctions, treesize of input 33214 treesize of output 30195 [2024-11-08 18:49:19,644 INFO L224 Elim1Store]: Index analysis took 144 ms [2024-11-08 18:49:20,291 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:49:20,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 2366 treesize of output 2422 [2024-11-08 18:49:21,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-08 18:49:23,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-08 18:49:24,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-11-08 18:49:24,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-08 18:49:25,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-08 18:49:27,419 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:49:27,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 42 [2024-11-08 18:49:29,426 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:49:29,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 42 [2024-11-08 18:49:31,080 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:49:31,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 42 [2024-11-08 18:49:32,597 INFO L224 Elim1Store]: Index analysis took 107 ms [2024-11-08 18:49:32,866 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:49:32,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 51 [2024-11-08 18:49:36,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:49:36,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 42 [2024-11-08 18:49:38,696 INFO L349 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2024-11-08 18:49:38,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 1 [2024-11-08 18:49:40,047 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:49:40,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 42 [2024-11-08 18:49:41,374 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:49:41,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 42 [2024-11-08 18:49:42,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-08 18:49:43,811 INFO L224 Elim1Store]: Index analysis took 107 ms [2024-11-08 18:49:44,215 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:49:44,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 129 treesize of output 155 [2024-11-08 18:49:55,861 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:49:55,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 114 treesize of output 146 [2024-11-08 18:50:06,826 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:50:06,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 52 [2024-11-08 18:50:08,522 INFO L224 Elim1Store]: Index analysis took 107 ms [2024-11-08 18:50:08,895 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:50:08,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 114 [2024-11-08 18:50:13,270 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:50:13,271 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 30 treesize of output 34 [2024-11-08 18:50:14,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:50:14,127 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 38 treesize of output 42 [2024-11-08 18:50:15,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:50:15,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 102 [2024-11-08 18:50:19,029 INFO L224 Elim1Store]: Index analysis took 108 ms [2024-11-08 18:50:19,344 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:50:19,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 84 treesize of output 114 [2024-11-08 18:50:21,973 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:50:21,974 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 32 treesize of output 34 [2024-11-08 18:50:23,660 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:50:23,661 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 18 treesize of output 22 [2024-11-08 18:50:25,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:50:25,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 102 [2024-11-08 18:50:32,210 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:50:32,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 3977 treesize of output 3863