./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:27:38,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:27:38,856 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-28 20:27:38,862 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:27:38,862 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:27:38,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:27:38,887 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:27:38,888 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:27:38,888 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:27:38,889 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:27:38,889 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:27:38,890 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:27:38,891 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:27:38,891 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:27:38,892 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:27:38,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:27:38,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:27:38,893 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:27:38,894 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:27:38,894 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:27:38,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:27:38,896 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:27:38,896 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-28 20:27:38,897 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-28 20:27:38,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:27:38,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:27:38,898 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 20:27:38,898 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:27:38,899 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:27:38,899 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:27:38,900 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:27:38,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:27:38,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:27:38,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:27:38,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:27:38,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:27:38,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:27:38,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:27:38,902 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:27:38,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:27:38,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:27:38,903 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:27:38,903 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:27:38,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:27:38,903 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_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 [2023-11-28 20:27:39,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:27:39,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:27:39,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:27:39,148 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:27:39,148 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:27:39,149 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2023-11-28 20:27:41,853 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:27:42,100 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:27:42,101 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2023-11-28 20:27:42,118 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/data/ae325b165/aba7dff6d9c94c27b2deefc3c7f32c67/FLAG29327fc46 [2023-11-28 20:27:42,132 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/data/ae325b165/aba7dff6d9c94c27b2deefc3c7f32c67 [2023-11-28 20:27:42,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:27:42,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:27:42,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:27:42,138 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:27:42,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:27:42,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:27:42" (1/1) ... [2023-11-28 20:27:42,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52e2eb58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:42, skipping insertion in model container [2023-11-28 20:27:42,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:27:42" (1/1) ... [2023-11-28 20:27:42,203 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:27:42,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:27:42,610 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-28 20:27:42,610 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@44bb9495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:42, skipping insertion in model container [2023-11-28 20:27:42,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:27:42,611 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-28 20:27:42,612 INFO L158 Benchmark]: Toolchain (without parser) took 475.19ms. Allocated memory is still 136.3MB. Free memory was 90.1MB in the beginning and 72.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-28 20:27:42,613 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 136.3MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:27:42,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.91ms. Allocated memory is still 136.3MB. Free memory was 89.7MB in the beginning and 72.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-28 20:27:42,614 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 136.3MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.91ms. Allocated memory is still 136.3MB. Free memory was 89.7MB in the beginning and 72.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 751]: 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_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:27:44,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:27:44,434 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-28 20:27:44,440 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:27:44,441 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:27:44,478 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:27:44,479 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:27:44,479 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:27:44,480 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:27:44,481 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:27:44,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:27:44,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:27:44,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:27:44,483 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:27:44,484 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:27:44,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:27:44,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:27:44,485 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:27:44,486 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:27:44,486 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:27:44,487 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:27:44,488 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:27:44,488 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-28 20:27:44,488 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-28 20:27:44,489 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:27:44,489 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:27:44,490 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 20:27:44,490 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 20:27:44,490 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 20:27:44,491 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:27:44,491 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:27:44,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:27:44,492 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:27:44,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:27:44,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:27:44,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:27:44,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:27:44,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:27:44,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:27:44,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:27:44,494 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 20:27:44,494 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 20:27:44,495 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:27:44,495 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:27:44,495 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:27:44,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:27:44,495 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 20:27:44,496 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_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 [2023-11-28 20:27:44,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:27:44,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:27:44,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:27:44,821 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:27:44,821 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:27:44,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2023-11-28 20:27:47,543 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:27:47,821 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:27:47,821 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2023-11-28 20:27:47,837 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/data/18b53900e/0678609d4e0348ae98874df9573ae6bc/FLAGfbb97c294 [2023-11-28 20:27:47,851 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/data/18b53900e/0678609d4e0348ae98874df9573ae6bc [2023-11-28 20:27:47,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:27:47,856 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:27:47,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:27:47,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:27:47,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:27:47,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:27:47" (1/1) ... [2023-11-28 20:27:47,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f141e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:47, skipping insertion in model container [2023-11-28 20:27:47,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:27:47" (1/1) ... [2023-11-28 20:27:47,927 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:27:48,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:27:48,339 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-28 20:27:48,353 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:27:48,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:27:48,426 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:27:48,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:27:48,531 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:27:48,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:48 WrapperNode [2023-11-28 20:27:48,531 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:27:48,532 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:27:48,533 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:27:48,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:27:48,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:48" (1/1) ... [2023-11-28 20:27:48,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:48" (1/1) ... [2023-11-28 20:27:48,615 INFO L138 Inliner]: procedures = 180, calls = 187, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 628 [2023-11-28 20:27:48,616 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:27:48,617 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:27:48,617 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:27:48,618 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:27:48,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:48" (1/1) ... [2023-11-28 20:27:48,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:48" (1/1) ... [2023-11-28 20:27:48,639 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:48" (1/1) ... [2023-11-28 20:27:48,688 INFO L175 MemorySlicer]: Split 163 memory accesses to 3 slices as follows [2, 156, 5]. 96 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 43 writes are split as follows [0, 42, 1]. [2023-11-28 20:27:48,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:48" (1/1) ... [2023-11-28 20:27:48,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:48" (1/1) ... [2023-11-28 20:27:48,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:48" (1/1) ... [2023-11-28 20:27:48,726 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:48" (1/1) ... [2023-11-28 20:27:48,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:48" (1/1) ... [2023-11-28 20:27:48,741 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:48" (1/1) ... [2023-11-28 20:27:48,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:27:48,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:27:48,750 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:27:48,750 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:27:48,751 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:48" (1/1) ... [2023-11-28 20:27:48,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:27:48,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:27:48,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:27:48,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:27:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-28 20:27:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-28 20:27:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-28 20:27:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-28 20:27:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-28 20:27:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-28 20:27:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-28 20:27:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-28 20:27:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-28 20:27:48,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-28 20:27:48,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-28 20:27:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-28 20:27:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-28 20:27:48,825 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-28 20:27:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 20:27:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:27:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:27:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-28 20:27:48,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-28 20:27:48,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-28 20:27:48,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-28 20:27:48,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-28 20:27:48,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-28 20:27:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:27:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-28 20:27:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-28 20:27:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-28 20:27:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-28 20:27:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-28 20:27:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-28 20:27:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:27:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:27:49,019 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:27:49,021 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:27:56,031 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:27:56,063 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:27:56,063 INFO L309 CfgBuilder]: Removed 31 assume(true) statements. [2023-11-28 20:27:56,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:27:56 BoogieIcfgContainer [2023-11-28 20:27:56,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:27:56,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:27:56,067 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:27:56,069 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:27:56,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:27:47" (1/3) ... [2023-11-28 20:27:56,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a6377f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:27:56, skipping insertion in model container [2023-11-28 20:27:56,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:48" (2/3) ... [2023-11-28 20:27:56,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a6377f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:27:56, skipping insertion in model container [2023-11-28 20:27:56,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:27:56" (3/3) ... [2023-11-28 20:27:56,072 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test1-1.i [2023-11-28 20:27:56,090 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:27:56,091 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-28 20:27:56,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:27:56,141 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5cc83b07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:27:56,141 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-28 20:27:56,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 110 states have (on average 1.6818181818181819) internal successors, (185), 122 states have internal predecessors, (185), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 20:27:56,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-28 20:27:56,153 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:56,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-28 20:27:56,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 20:27:56,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:56,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1105731656, now seen corresponding path program 1 times [2023-11-28 20:27:56,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:27:56,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304665987] [2023-11-28 20:27:56,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:56,167 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:27:56,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:27:56,172 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:27:56,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-28 20:27:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:56,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:27:56,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:27:56,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:27:56,354 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:27:56,354 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:27:56,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304665987] [2023-11-28 20:27:56,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304665987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:27:56,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:27:56,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:27:56,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780247641] [2023-11-28 20:27:56,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:27:56,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:27:56,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:27:56,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:27:56,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:27:56,392 INFO L87 Difference]: Start difference. First operand has 128 states, 110 states have (on average 1.6818181818181819) internal successors, (185), 122 states have internal predecessors, (185), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:27:56,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:56,622 INFO L93 Difference]: Finished difference Result 216 states and 288 transitions. [2023-11-28 20:27:56,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:27:56,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2023-11-28 20:27:56,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:56,636 INFO L225 Difference]: With dead ends: 216 [2023-11-28 20:27:56,636 INFO L226 Difference]: Without dead ends: 215 [2023-11-28 20:27:56,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:27:56,641 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 108 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:56,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 331 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:27:56,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-11-28 20:27:56,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 127. [2023-11-28 20:27:56,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 110 states have (on average 1.3363636363636364) internal successors, (147), 121 states have internal predecessors, (147), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 20:27:56,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 173 transitions. [2023-11-28 20:27:56,685 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 173 transitions. Word has length 6 [2023-11-28 20:27:56,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:56,686 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 173 transitions. [2023-11-28 20:27:56,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:27:56,686 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 173 transitions. [2023-11-28 20:27:56,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-28 20:27:56,689 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:56,690 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:27:56,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:27:56,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:27:56,890 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 20:27:56,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:56,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1899210323, now seen corresponding path program 1 times [2023-11-28 20:27:56,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:27:56,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339278571] [2023-11-28 20:27:56,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:56,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:27:56,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:27:56,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:27:56,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-28 20:27:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:57,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:27:57,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:27:57,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:27:57,317 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:27:57,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:27:57,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339278571] [2023-11-28 20:27:57,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339278571] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:27:57,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:27:57,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:27:57,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107906198] [2023-11-28 20:27:57,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:27:57,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:27:57,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:27:57,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:27:57,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:27:57,320 INFO L87 Difference]: Start difference. First operand 127 states and 173 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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) [2023-11-28 20:27:57,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:57,469 INFO L93 Difference]: Finished difference Result 131 states and 169 transitions. [2023-11-28 20:27:57,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:27:57,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 61 [2023-11-28 20:27:57,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:57,472 INFO L225 Difference]: With dead ends: 131 [2023-11-28 20:27:57,472 INFO L226 Difference]: Without dead ends: 131 [2023-11-28 20:27:57,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:27:57,474 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 36 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:57,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 396 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:27:57,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-11-28 20:27:57,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2023-11-28 20:27:57,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 113 states have (on average 1.2566371681415929) internal successors, (142), 124 states have internal predecessors, (142), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 20:27:57,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 168 transitions. [2023-11-28 20:27:57,488 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 168 transitions. Word has length 61 [2023-11-28 20:27:57,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:57,488 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 168 transitions. [2023-11-28 20:27:57,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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) [2023-11-28 20:27:57,489 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 168 transitions. [2023-11-28 20:27:57,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-28 20:27:57,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:57,491 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:27:57,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-28 20:27:57,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:27:57,701 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 20:27:57,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:57,701 INFO L85 PathProgramCache]: Analyzing trace with hash -2086726495, now seen corresponding path program 1 times [2023-11-28 20:27:57,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:27:57,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054190226] [2023-11-28 20:27:57,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:57,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:27:57,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:27:57,703 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:27:57,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-28 20:27:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:58,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:27:58,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:27:58,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:27:58,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:27:58,341 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:27:58,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054190226] [2023-11-28 20:27:58,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054190226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:27:58,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:27:58,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:27:58,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328932427] [2023-11-28 20:27:58,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:27:58,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:27:58,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:27:58,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:27:58,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:27:58,344 INFO L87 Difference]: Start difference. First operand 130 states and 168 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 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) [2023-11-28 20:27:58,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:58,789 INFO L93 Difference]: Finished difference Result 172 states and 214 transitions. [2023-11-28 20:27:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:27:58,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 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 61 [2023-11-28 20:27:58,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:58,796 INFO L225 Difference]: With dead ends: 172 [2023-11-28 20:27:58,796 INFO L226 Difference]: Without dead ends: 172 [2023-11-28 20:27:58,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:27:58,798 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 11 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:58,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 299 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 20:27:58,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-28 20:27:58,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2023-11-28 20:27:58,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 155 states have (on average 1.2129032258064516) internal successors, (188), 166 states have internal predecessors, (188), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 20:27:58,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 214 transitions. [2023-11-28 20:27:58,814 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 214 transitions. Word has length 61 [2023-11-28 20:27:58,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:58,815 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 214 transitions. [2023-11-28 20:27:58,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 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) [2023-11-28 20:27:58,815 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 214 transitions. [2023-11-28 20:27:58,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-28 20:27:58,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:58,818 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:27:58,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-28 20:27:59,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:27:59,024 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 20:27:59,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:59,025 INFO L85 PathProgramCache]: Analyzing trace with hash -392677148, now seen corresponding path program 1 times [2023-11-28 20:27:59,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:27:59,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947412150] [2023-11-28 20:27:59,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:59,026 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:27:59,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:27:59,027 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:27:59,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-28 20:27:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:59,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:27:59,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:27:59,443 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:27:59,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:27:59,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:27:59,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947412150] [2023-11-28 20:27:59,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947412150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:27:59,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:27:59,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:27:59,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279360170] [2023-11-28 20:27:59,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:27:59,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:27:59,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:27:59,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:27:59,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:27:59,446 INFO L87 Difference]: Start difference. First operand 172 states and 214 transitions. Second operand has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:27:59,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:59,514 INFO L93 Difference]: Finished difference Result 174 states and 217 transitions. [2023-11-28 20:27:59,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:27:59,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2023-11-28 20:27:59,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:59,517 INFO L225 Difference]: With dead ends: 174 [2023-11-28 20:27:59,517 INFO L226 Difference]: Without dead ends: 174 [2023-11-28 20:27:59,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:27:59,518 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:59,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 464 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:27:59,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-11-28 20:27:59,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2023-11-28 20:27:59,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 156 states have (on average 1.2179487179487178) internal successors, (190), 168 states have internal predecessors, (190), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-28 20:27:59,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 217 transitions. [2023-11-28 20:27:59,532 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 217 transitions. Word has length 74 [2023-11-28 20:27:59,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:59,533 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 217 transitions. [2023-11-28 20:27:59,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:27:59,534 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 217 transitions. [2023-11-28 20:27:59,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-28 20:27:59,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:59,536 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:27:59,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-28 20:27:59,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:27:59,744 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 20:27:59,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:59,745 INFO L85 PathProgramCache]: Analyzing trace with hash -503525900, now seen corresponding path program 1 times [2023-11-28 20:27:59,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:27:59,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932352125] [2023-11-28 20:27:59,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:59,745 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:27:59,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:27:59,746 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:27:59,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-28 20:28:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:28:00,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:28:00,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:28:00,201 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 20:28:00,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:28:00,292 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-28 20:28:00,293 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:28:00,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932352125] [2023-11-28 20:28:00,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932352125] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:28:00,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:28:00,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-28 20:28:00,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447693916] [2023-11-28 20:28:00,294 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:28:00,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:28:00,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:28:00,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:28:00,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:28:00,295 INFO L87 Difference]: Start difference. First operand 174 states and 217 transitions. Second operand has 8 states, 6 states have (on average 13.0) internal successors, (78), 8 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:28:00,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:28:00,495 INFO L93 Difference]: Finished difference Result 183 states and 231 transitions. [2023-11-28 20:28:00,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 20:28:00,496 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.0) internal successors, (78), 8 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 76 [2023-11-28 20:28:00,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:28:00,498 INFO L225 Difference]: With dead ends: 183 [2023-11-28 20:28:00,498 INFO L226 Difference]: Without dead ends: 183 [2023-11-28 20:28:00,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:28:00,500 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 7 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:28:00,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 465 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:28:00,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-28 20:28:00,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 182. [2023-11-28 20:28:00,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 163 states have (on average 1.2453987730061349) internal successors, (203), 175 states have internal predecessors, (203), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-28 20:28:00,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 230 transitions. [2023-11-28 20:28:00,511 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 230 transitions. Word has length 76 [2023-11-28 20:28:00,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:28:00,511 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 230 transitions. [2023-11-28 20:28:00,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.0) internal successors, (78), 8 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:28:00,512 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 230 transitions. [2023-11-28 20:28:00,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-28 20:28:00,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:28:00,514 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:28:00,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-28 20:28:00,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:28:00,720 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 20:28:00,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:28:00,721 INFO L85 PathProgramCache]: Analyzing trace with hash -120935068, now seen corresponding path program 2 times [2023-11-28 20:28:00,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:28:00,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299332500] [2023-11-28 20:28:00,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:28:00,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:28:00,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:28:00,723 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:28:00,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-28 20:28:01,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:28:01,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:28:01,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:28:01,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:28:01,237 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-28 20:28:01,238 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:28:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:28:01,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:28:01,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299332500] [2023-11-28 20:28:01,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299332500] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:28:01,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:28:01,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-28 20:28:01,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079663076] [2023-11-28 20:28:01,462 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:28:01,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-28 20:28:01,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:28:01,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-28 20:28:01,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:28:01,464 INFO L87 Difference]: Start difference. First operand 182 states and 230 transitions. Second operand has 14 states, 12 states have (on average 7.0) internal successors, (84), 14 states have internal predecessors, (84), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:28:02,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:28:02,213 INFO L93 Difference]: Finished difference Result 197 states and 252 transitions. [2023-11-28 20:28:02,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-28 20:28:02,214 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.0) internal successors, (84), 14 states have internal predecessors, (84), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 80 [2023-11-28 20:28:02,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:28:02,216 INFO L225 Difference]: With dead ends: 197 [2023-11-28 20:28:02,216 INFO L226 Difference]: Without dead ends: 195 [2023-11-28 20:28:02,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-28 20:28:02,218 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 13 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:28:02,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1227 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 20:28:02,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-28 20:28:02,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 191. [2023-11-28 20:28:02,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 172 states have (on average 1.25) internal successors, (215), 184 states have internal predecessors, (215), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-28 20:28:02,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 242 transitions. [2023-11-28 20:28:02,229 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 242 transitions. Word has length 80 [2023-11-28 20:28:02,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:28:02,230 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 242 transitions. [2023-11-28 20:28:02,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.0) internal successors, (84), 14 states have internal predecessors, (84), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:28:02,230 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 242 transitions. [2023-11-28 20:28:02,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-28 20:28:02,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:28:02,232 INFO L195 NwaCegarLoop]: trace histogram [15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:28:02,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-28 20:28:02,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:28:02,437 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 20:28:02,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:28:02,437 INFO L85 PathProgramCache]: Analyzing trace with hash 230172752, now seen corresponding path program 3 times [2023-11-28 20:28:02,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:28:02,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697661411] [2023-11-28 20:28:02,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:28:02,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:28:02,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:28:02,439 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:28:02,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-28 20:28:02,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-28 20:28:02,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:28:02,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:28:02,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:28:02,940 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-11-28 20:28:02,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:28:02,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:28:02,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697661411] [2023-11-28 20:28:02,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697661411] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:28:02,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:28:02,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:28:02,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908609939] [2023-11-28 20:28:02,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:28:02,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:28:02,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:28:02,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:28:02,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:28:02,943 INFO L87 Difference]: Start difference. First operand 191 states and 242 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:28:07,417 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 [] [2023-11-28 20:28:09,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 20:28:10,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:28:10,977 INFO L93 Difference]: Finished difference Result 213 states and 283 transitions. [2023-11-28 20:28:10,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:28:10,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 89 [2023-11-28 20:28:10,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:28:10,980 INFO L225 Difference]: With dead ends: 213 [2023-11-28 20:28:10,980 INFO L226 Difference]: Without dead ends: 213 [2023-11-28 20:28:10,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:28:10,981 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 199 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:28:10,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 281 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 54 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2023-11-28 20:28:10,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-11-28 20:28:10,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 192. [2023-11-28 20:28:10,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 173 states have (on average 1.2427745664739884) internal successors, (215), 185 states have internal predecessors, (215), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-28 20:28:10,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 242 transitions. [2023-11-28 20:28:10,992 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 242 transitions. Word has length 89 [2023-11-28 20:28:10,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:28:10,992 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 242 transitions. [2023-11-28 20:28:10,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:28:10,993 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 242 transitions. [2023-11-28 20:28:10,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-28 20:28:10,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:28:10,994 INFO L195 NwaCegarLoop]: trace histogram [15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:28:10,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-28 20:28:11,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:28:11,196 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 20:28:11,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:28:11,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1550605101, now seen corresponding path program 1 times [2023-11-28 20:28:11,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:28:11,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191010775] [2023-11-28 20:28:11,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:28:11,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:28:11,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:28:11,198 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:28:11,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-28 20:28:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:28:11,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 20:28:11,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:28:11,845 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 69 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-28 20:28:11,845 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:28:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 1 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-28 20:28:12,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:28:12,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191010775] [2023-11-28 20:28:12,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191010775] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:28:12,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:28:12,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-28 20:28:12,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423624615] [2023-11-28 20:28:12,464 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:28:12,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-28 20:28:12,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:28:12,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-28 20:28:12,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-28 20:28:12,466 INFO L87 Difference]: Start difference. First operand 192 states and 242 transitions. Second operand has 26 states, 24 states have (on average 4.125) internal successors, (99), 26 states have internal predecessors, (99), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:28:14,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:28:14,882 INFO L93 Difference]: Finished difference Result 222 states and 288 transitions. [2023-11-28 20:28:14,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-28 20:28:14,883 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 4.125) internal successors, (99), 26 states have internal predecessors, (99), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 93 [2023-11-28 20:28:14,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:28:14,884 INFO L225 Difference]: With dead ends: 222 [2023-11-28 20:28:14,884 INFO L226 Difference]: Without dead ends: 220 [2023-11-28 20:28:14,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-28 20:28:14,886 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 25 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:28:14,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1993 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-28 20:28:14,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-11-28 20:28:14,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 210. [2023-11-28 20:28:14,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 191 states have (on average 1.2513089005235603) internal successors, (239), 203 states have internal predecessors, (239), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-28 20:28:14,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 266 transitions. [2023-11-28 20:28:14,895 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 266 transitions. Word has length 93 [2023-11-28 20:28:14,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:28:14,896 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 266 transitions. [2023-11-28 20:28:14,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 4.125) internal successors, (99), 26 states have internal predecessors, (99), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:28:14,896 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 266 transitions. [2023-11-28 20:28:14,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-28 20:28:14,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:28:14,897 INFO L195 NwaCegarLoop]: trace histogram [33, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:28:14,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-28 20:28:15,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:28:15,098 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 20:28:15,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:28:15,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1059190611, now seen corresponding path program 2 times [2023-11-28 20:28:15,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:28:15,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194501431] [2023-11-28 20:28:15,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:28:15,099 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:28:15,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:28:15,100 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:28:15,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-28 20:28:15,624 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:28:15,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:28:15,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-28 20:28:15,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:28:16,194 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 279 proven. 253 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-28 20:28:16,194 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:28:18,017 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 1 proven. 530 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-28 20:28:18,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:28:18,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194501431] [2023-11-28 20:28:18,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194501431] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:28:18,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:28:18,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-28 20:28:18,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628480893] [2023-11-28 20:28:18,018 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:28:18,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-28 20:28:18,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:28:18,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-28 20:28:18,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-28 20:28:18,022 INFO L87 Difference]: Start difference. First operand 210 states and 266 transitions. Second operand has 50 states, 48 states have (on average 2.5625) internal successors, (123), 50 states have internal predecessors, (123), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:28:27,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:28:27,119 INFO L93 Difference]: Finished difference Result 268 states and 356 transitions. [2023-11-28 20:28:27,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-11-28 20:28:27,120 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.5625) internal successors, (123), 50 states have internal predecessors, (123), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 111 [2023-11-28 20:28:27,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:28:27,122 INFO L225 Difference]: With dead ends: 268 [2023-11-28 20:28:27,122 INFO L226 Difference]: Without dead ends: 266 [2023-11-28 20:28:27,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=3840, Invalid=9500, Unknown=0, NotChecked=0, Total=13340 [2023-11-28 20:28:27,128 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 49 mSDsluCounter, 3673 mSDsCounter, 0 mSdLazyCounter, 2525 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3829 SdHoareTripleChecker+Invalid, 2605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-28 20:28:27,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3829 Invalid, 2605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2525 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-28 20:28:27,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-28 20:28:27,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 244. [2023-11-28 20:28:27,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 225 states have (on average 1.2666666666666666) internal successors, (285), 237 states have internal predecessors, (285), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-28 20:28:27,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 312 transitions. [2023-11-28 20:28:27,140 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 312 transitions. Word has length 111 [2023-11-28 20:28:27,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:28:27,140 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 312 transitions. [2023-11-28 20:28:27,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.5625) internal successors, (123), 50 states have internal predecessors, (123), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:28:27,141 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 312 transitions. [2023-11-28 20:28:27,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-28 20:28:27,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:28:27,143 INFO L195 NwaCegarLoop]: trace histogram [67, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:28:27,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-28 20:28:27,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:28:27,343 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 20:28:27,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:28:27,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1792145363, now seen corresponding path program 3 times [2023-11-28 20:28:27,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:28:27,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [354911712] [2023-11-28 20:28:27,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:28:27,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:28:27,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:28:27,346 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:28:27,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-28 20:28:27,745 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-28 20:28:27,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:28:27,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:28:27,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:28:27,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2348 trivial. 0 not checked. [2023-11-28 20:28:27,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:28:28,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2349 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2348 trivial. 0 not checked. [2023-11-28 20:28:28,109 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:28:28,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [354911712] [2023-11-28 20:28:28,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [354911712] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:28:28,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:28:28,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-28 20:28:28,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200241712] [2023-11-28 20:28:28,109 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:28:28,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:28:28,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:28:28,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:28:28,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:28:28,111 INFO L87 Difference]: Start difference. First operand 244 states and 312 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:28:28,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:28:28,548 INFO L93 Difference]: Finished difference Result 449 states and 561 transitions. [2023-11-28 20:28:28,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:28:28,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 145 [2023-11-28 20:28:28,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:28:28,551 INFO L225 Difference]: With dead ends: 449 [2023-11-28 20:28:28,551 INFO L226 Difference]: Without dead ends: 449 [2023-11-28 20:28:28,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:28:28,552 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 375 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:28:28,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 681 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 20:28:28,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-28 20:28:28,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2023-11-28 20:28:28,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 427 states have (on average 1.2295081967213115) internal successors, (525), 439 states have internal predecessors, (525), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (20), 7 states have call predecessors, (20), 16 states have call successors, (20) [2023-11-28 20:28:28,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 561 transitions. [2023-11-28 20:28:28,562 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 561 transitions. Word has length 145 [2023-11-28 20:28:28,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:28:28,563 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 561 transitions. [2023-11-28 20:28:28,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:28:28,563 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 561 transitions. [2023-11-28 20:28:28,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2023-11-28 20:28:28,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:28:28,565 INFO L195 NwaCegarLoop]: trace histogram [67, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:28:28,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-28 20:28:28,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:28:28,766 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 20:28:28,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:28:28,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1184877012, now seen corresponding path program 1 times [2023-11-28 20:28:28,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:28:28,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498078679] [2023-11-28 20:28:28,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:28:28,768 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:28:28,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:28:28,769 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:28:28,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-28 20:28:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:28:30,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 1941 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-28 20:28:30,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:28:30,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2676 backedges. 1193 proven. 276 refuted. 0 times theorem prover too weak. 1207 trivial. 0 not checked. [2023-11-28 20:28:30,992 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:28:32,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2676 backedges. 1193 proven. 276 refuted. 0 times theorem prover too weak. 1207 trivial. 0 not checked. [2023-11-28 20:28:32,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:28:32,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498078679] [2023-11-28 20:28:32,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498078679] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:28:32,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:28:32,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-28 20:28:32,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531887996] [2023-11-28 20:28:32,954 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:28:32,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-28 20:28:32,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:28:32,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-28 20:28:32,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2023-11-28 20:28:32,958 INFO L87 Difference]: Start difference. First operand 449 states and 561 transitions. Second operand has 52 states, 50 states have (on average 3.22) internal successors, (161), 52 states have internal predecessors, (161), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 20:28:42,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:28:42,139 INFO L93 Difference]: Finished difference Result 498 states and 707 transitions. [2023-11-28 20:28:42,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-11-28 20:28:42,139 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 3.22) internal successors, (161), 52 states have internal predecessors, (161), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 310 [2023-11-28 20:28:42,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:28:42,142 INFO L225 Difference]: With dead ends: 498 [2023-11-28 20:28:42,143 INFO L226 Difference]: Without dead ends: 498 [2023-11-28 20:28:42,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 689 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3563 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=4418, Invalid=10588, Unknown=0, NotChecked=0, Total=15006 [2023-11-28 20:28:42,147 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 54 mSDsluCounter, 3650 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3805 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:28:42,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3805 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-28 20:28:42,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-11-28 20:28:42,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 474. [2023-11-28 20:28:42,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 452 states have (on average 1.2721238938053097) internal successors, (575), 464 states have internal predecessors, (575), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (20), 7 states have call predecessors, (20), 16 states have call successors, (20) [2023-11-28 20:28:42,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 611 transitions. [2023-11-28 20:28:42,170 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 611 transitions. Word has length 310 [2023-11-28 20:28:42,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:28:42,170 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 611 transitions. [2023-11-28 20:28:42,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 3.22) internal successors, (161), 52 states have internal predecessors, (161), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 20:28:42,171 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 611 transitions. [2023-11-28 20:28:42,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2023-11-28 20:28:42,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:28:42,173 INFO L195 NwaCegarLoop]: trace histogram [92, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:28:42,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-28 20:28:42,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:28:42,374 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 20:28:42,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:28:42,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1826025960, now seen corresponding path program 2 times [2023-11-28 20:28:42,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:28:42,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733281345] [2023-11-28 20:28:42,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:28:42,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:28:42,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:28:42,376 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:28:42,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-28 20:28:44,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:28:44,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:28:44,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 2216 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-28 20:28:44,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:28:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 4701 backedges. 2318 proven. 1176 refuted. 0 times theorem prover too weak. 1207 trivial. 0 not checked. [2023-11-28 20:28:46,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:28:53,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4701 backedges. 2318 proven. 1176 refuted. 0 times theorem prover too weak. 1207 trivial. 0 not checked. [2023-11-28 20:28:53,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:28:53,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733281345] [2023-11-28 20:28:53,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733281345] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:28:53,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:28:53,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2023-11-28 20:28:53,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447566229] [2023-11-28 20:28:53,842 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:28:53,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-11-28 20:28:53,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:28:53,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-11-28 20:28:53,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2023-11-28 20:28:53,850 INFO L87 Difference]: Start difference. First operand 474 states and 611 transitions. Second operand has 102 states, 100 states have (on average 2.11) internal successors, (211), 102 states have internal predecessors, (211), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 20:29:40,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:29:40,002 INFO L93 Difference]: Finished difference Result 581 states and 918 transitions. [2023-11-28 20:29:40,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2023-11-28 20:29:40,003 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 100 states have (on average 2.11) internal successors, (211), 102 states have internal predecessors, (211), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 335 [2023-11-28 20:29:40,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:29:40,007 INFO L225 Difference]: With dead ends: 581 [2023-11-28 20:29:40,007 INFO L226 Difference]: Without dead ends: 581 [2023-11-28 20:29:40,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 765 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 41.2s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2023-11-28 20:29:40,015 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 115 mSDsluCounter, 7603 mSDsCounter, 0 mSdLazyCounter, 8002 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 7758 SdHoareTripleChecker+Invalid, 8071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 8002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:29:40,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 7758 Invalid, 8071 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 8002 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2023-11-28 20:29:40,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-11-28 20:29:40,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 528. [2023-11-28 20:29:40,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 506 states have (on average 1.3478260869565217) internal successors, (682), 518 states have internal predecessors, (682), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (20), 7 states have call predecessors, (20), 16 states have call successors, (20) [2023-11-28 20:29:40,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 718 transitions. [2023-11-28 20:29:40,043 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 718 transitions. Word has length 335 [2023-11-28 20:29:40,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:29:40,043 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 718 transitions. [2023-11-28 20:29:40,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 100 states have (on average 2.11) internal successors, (211), 102 states have internal predecessors, (211), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-28 20:29:40,044 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 718 transitions. [2023-11-28 20:29:40,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-11-28 20:29:40,046 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:29:40,046 INFO L195 NwaCegarLoop]: trace histogram [142, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:29:40,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-28 20:29:40,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:29:40,247 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-28 20:29:40,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:29:40,248 INFO L85 PathProgramCache]: Analyzing trace with hash -175293288, now seen corresponding path program 3 times [2023-11-28 20:29:40,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:29:40,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795896965] [2023-11-28 20:29:40,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:29:40,250 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:29:40,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:29:40,251 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:29:40,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6d8865-4a6b-43f6-bdd3-1c54cf8067ed/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process