./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9bd2c7ff 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_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu --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 f1f34940ecf685c2c1201858b264ccb53eb3034d3cb9952a1b49bb437c42dde1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:27,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:27,991 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-19 07:46:27,997 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:27,998 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:28,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:28,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:28,025 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:28,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:28,027 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:28,028 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:28,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:28,029 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:28,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:28,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:28,031 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:28,032 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:28,032 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:28,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:28,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:28,052 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:46:28,053 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:46:28,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:28,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:28,054 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:46:28,055 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:28,055 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:28,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:28,056 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:28,057 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:28,057 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:28,058 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:28,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:28,059 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:28,059 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:28,059 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:28,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:46:28,060 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:28,060 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:28,061 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:28,061 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:28,062 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_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1f34940ecf685c2c1201858b264ccb53eb3034d3cb9952a1b49bb437c42dde1 [2023-11-19 07:46:28,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:28,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:28,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:28,333 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:28,333 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:28,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.i [2023-11-19 07:46:31,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:31,880 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:31,881 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.i [2023-11-19 07:46:31,902 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/data/1ba5cd268/c1456d6168444f7fb2f09c00df533b30/FLAGaa16d7e7f [2023-11-19 07:46:31,918 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/data/1ba5cd268/c1456d6168444f7fb2f09c00df533b30 [2023-11-19 07:46:31,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:31,924 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:31,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:31,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:31,931 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:31,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:31" (1/1) ... [2023-11-19 07:46:31,933 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4276bd9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:31, skipping insertion in model container [2023-11-19 07:46:31,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:31" (1/1) ... [2023-11-19 07:46:32,021 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:32,740 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:32,756 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) [2023-11-19 07:46:32,757 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@715296af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:32, skipping insertion in model container [2023-11-19 07:46:32,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:32,758 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:46:32,761 INFO L158 Benchmark]: Toolchain (without parser) took 835.55ms. Allocated memory was 107.0MB in the beginning and 155.2MB in the end (delta: 48.2MB). Free memory was 60.7MB in the beginning and 121.1MB in the end (delta: -60.4MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2023-11-19 07:46:32,762 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:46:32,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 832.96ms. Allocated memory was 107.0MB in the beginning and 155.2MB in the end (delta: 48.2MB). Free memory was 60.4MB in the beginning and 121.1MB in the end (delta: -60.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2023-11-19 07:46:32,766 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 832.96ms. Allocated memory was 107.0MB in the beginning and 155.2MB in the end (delta: 48.2MB). Free memory was 60.4MB in the beginning and 121.1MB in the end (delta: -60.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 736]: 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_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu --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 f1f34940ecf685c2c1201858b264ccb53eb3034d3cb9952a1b49bb437c42dde1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:35,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:35,399 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-19 07:46:35,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:35,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:35,452 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:35,453 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:35,453 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:35,454 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:35,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:35,457 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:35,458 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:35,458 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:35,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:35,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:35,465 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:35,465 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:35,465 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:35,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:35,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:35,467 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:46:35,467 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:46:35,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:35,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:35,469 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:46:35,469 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:46:35,470 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:46:35,470 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:35,471 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:35,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:35,472 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:35,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:35,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:35,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:35,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:35,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:35,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:35,475 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:46:35,475 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:46:35,476 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:35,476 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:35,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:35,477 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:46:35,477 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:35,478 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_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1f34940ecf685c2c1201858b264ccb53eb3034d3cb9952a1b49bb437c42dde1 [2023-11-19 07:46:35,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:35,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:35,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:35,959 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:35,960 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:35,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.i [2023-11-19 07:46:39,129 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:39,526 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:39,526 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-1.i [2023-11-19 07:46:39,556 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/data/cbfe8f7d4/9901009a057f409db984832de719a824/FLAG89a3f313e [2023-11-19 07:46:39,571 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/data/cbfe8f7d4/9901009a057f409db984832de719a824 [2023-11-19 07:46:39,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:39,576 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:39,577 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:39,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:39,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:39,583 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:39,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b8ae9c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39, skipping insertion in model container [2023-11-19 07:46:39,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:39,662 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:40,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:40,343 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:46:40,357 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:40,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:40,464 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:40,598 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:40,646 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:40,680 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:40,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:40 WrapperNode [2023-11-19 07:46:40,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:40,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:40,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:40,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:40,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:40" (1/1) ... [2023-11-19 07:46:40,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:40" (1/1) ... [2023-11-19 07:46:40,855 INFO L138 Inliner]: procedures = 180, calls = 287, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1032 [2023-11-19 07:46:40,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:40,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:40,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:40,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:40,868 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:40" (1/1) ... [2023-11-19 07:46:40,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:40" (1/1) ... [2023-11-19 07:46:40,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:40" (1/1) ... [2023-11-19 07:46:40,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:40" (1/1) ... [2023-11-19 07:46:40,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:40" (1/1) ... [2023-11-19 07:46:40,960 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:40" (1/1) ... [2023-11-19 07:46:40,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:40" (1/1) ... [2023-11-19 07:46:40,972 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:40" (1/1) ... [2023-11-19 07:46:40,983 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:40,984 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:40,984 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:40,984 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:40,985 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:40" (1/1) ... [2023-11-19 07:46:40,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:41,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:41,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:41,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:41,074 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-19 07:46:41,074 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-19 07:46:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:46:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:46:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:46:41,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:46:41,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:46:41,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:46:41,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:46:41,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:41,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:46:41,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:46:41,079 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:46:41,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:46:41,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:41,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:46:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:46:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:41,370 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:41,373 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:48,713 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:48,728 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:48,729 INFO L302 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-19 07:46:48,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:48 BoogieIcfgContainer [2023-11-19 07:46:48,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:48,738 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:46:48,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:46:48,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:46:48,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:39" (1/3) ... [2023-11-19 07:46:48,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9b3550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:48, skipping insertion in model container [2023-11-19 07:46:48,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:40" (2/3) ... [2023-11-19 07:46:48,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9b3550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:48, skipping insertion in model container [2023-11-19 07:46:48,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:48" (3/3) ... [2023-11-19 07:46:48,747 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test3-1.i [2023-11-19 07:46:48,766 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:46:48,766 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:46:48,824 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:46:48,831 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;@5116c9e2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:46:48,831 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 07:46:48,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 197 states have (on average 1.6649746192893402) internal successors, (328), 206 states have internal predecessors, (328), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:46:48,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:46:48,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:48,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:48,845 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:46:48,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:48,858 INFO L85 PathProgramCache]: Analyzing trace with hash -500248016, now seen corresponding path program 1 times [2023-11-19 07:46:48,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:46:48,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744121646] [2023-11-19 07:46:48,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:48,874 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 [2023-11-19 07:46:48,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:46:48,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:46:48,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:46:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:49,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:46:49,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:49,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:49,121 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:46:49,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:46:49,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744121646] [2023-11-19 07:46:49,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744121646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:49,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:49,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:46:49,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614727247] [2023-11-19 07:46:49,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:49,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:46:49,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:46:49,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:46:49,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:46:49,169 INFO L87 Difference]: Start difference. First operand has 213 states, 197 states have (on average 1.6649746192893402) internal successors, (328), 206 states have internal predecessors, (328), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:49,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:49,215 INFO L93 Difference]: Finished difference Result 211 states and 276 transitions. [2023-11-19 07:46:49,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:46:49,220 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2023-11-19 07:46:49,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:49,238 INFO L225 Difference]: With dead ends: 211 [2023-11-19 07:46:49,239 INFO L226 Difference]: Without dead ends: 209 [2023-11-19 07:46:49,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:46:49,245 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:49,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:46:49,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-19 07:46:49,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2023-11-19 07:46:49,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 195 states have (on average 1.3128205128205128) internal successors, (256), 202 states have internal predecessors, (256), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:46:49,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 274 transitions. [2023-11-19 07:46:49,341 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 274 transitions. Word has length 9 [2023-11-19 07:46:49,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:49,342 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 274 transitions. [2023-11-19 07:46:49,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:49,342 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 274 transitions. [2023-11-19 07:46:49,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 07:46:49,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:49,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:49,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:46:49,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:46:49,547 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:46:49,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:49,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1492776179, now seen corresponding path program 1 times [2023-11-19 07:46:49,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:46:49,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012236378] [2023-11-19 07:46:49,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:49,549 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 [2023-11-19 07:46:49,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:46:49,551 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:46:49,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:46:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:49,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:46:49,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:49,905 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:46:49,906 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:46:49,906 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:46:49,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-19 07:46:50,030 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:46:50,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-19 07:46:50,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:50,061 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:46:50,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:46:50,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012236378] [2023-11-19 07:46:50,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012236378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:50,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:50,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:50,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172196907] [2023-11-19 07:46:50,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:50,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:46:50,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:46:50,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:46:50,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:46:50,071 INFO L87 Difference]: Start difference. First operand 209 states and 274 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:56,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:46:59,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:47:00,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:00,476 INFO L93 Difference]: Finished difference Result 343 states and 457 transitions. [2023-11-19 07:47:00,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:00,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2023-11-19 07:47:00,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:00,480 INFO L225 Difference]: With dead ends: 343 [2023-11-19 07:47:00,481 INFO L226 Difference]: Without dead ends: 343 [2023-11-19 07:47:00,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:47:00,482 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 164 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:00,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 677 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2023-11-19 07:47:00,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-19 07:47:00,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 211. [2023-11-19 07:47:00,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 197 states have (on average 1.3096446700507614) internal successors, (258), 204 states have internal predecessors, (258), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:47:00,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 276 transitions. [2023-11-19 07:47:00,501 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 276 transitions. Word has length 11 [2023-11-19 07:47:00,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:00,502 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 276 transitions. [2023-11-19 07:47:00,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:00,502 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 276 transitions. [2023-11-19 07:47:00,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:47:00,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:00,505 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:00,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:47:00,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:00,710 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:47:00,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:00,711 INFO L85 PathProgramCache]: Analyzing trace with hash -638128961, now seen corresponding path program 1 times [2023-11-19 07:47:00,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:00,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609268595] [2023-11-19 07:47:00,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:00,713 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 [2023-11-19 07:47:00,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:00,718 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:47:00,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:47:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:01,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:47:01,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:01,336 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:01,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:01,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:01,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609268595] [2023-11-19 07:47:01,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609268595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:01,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:01,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:47:01,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538936014] [2023-11-19 07:47:01,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:01,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:47:01,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:01,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:47:01,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:47:01,340 INFO L87 Difference]: Start difference. First operand 211 states and 276 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:01,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:01,511 INFO L93 Difference]: Finished difference Result 215 states and 272 transitions. [2023-11-19 07:47:01,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:01,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2023-11-19 07:47:01,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:01,514 INFO L225 Difference]: With dead ends: 215 [2023-11-19 07:47:01,514 INFO L226 Difference]: Without dead ends: 215 [2023-11-19 07:47:01,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:47:01,516 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 36 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:01,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 709 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:47:01,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-11-19 07:47:01,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 214. [2023-11-19 07:47:01,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 200 states have (on average 1.265) internal successors, (253), 207 states have internal predecessors, (253), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:47:01,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 271 transitions. [2023-11-19 07:47:01,531 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 271 transitions. Word has length 67 [2023-11-19 07:47:01,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:01,531 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 271 transitions. [2023-11-19 07:47:01,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:01,532 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 271 transitions. [2023-11-19 07:47:01,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:47:01,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:01,535 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:01,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:47:01,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:01,744 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:47:01,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:01,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1225598771, now seen corresponding path program 1 times [2023-11-19 07:47:01,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:01,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148194998] [2023-11-19 07:47:01,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:01,746 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 [2023-11-19 07:47:01,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:01,748 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:47:01,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:47:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:47:02,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:02,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:02,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:02,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:02,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148194998] [2023-11-19 07:47:02,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148194998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:02,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:02,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:02,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818128128] [2023-11-19 07:47:02,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:02,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:02,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:02,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:02,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:02,691 INFO L87 Difference]: Start difference. First operand 214 states and 271 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:03,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:03,543 INFO L93 Difference]: Finished difference Result 342 states and 435 transitions. [2023-11-19 07:47:03,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:03,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2023-11-19 07:47:03,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:03,548 INFO L225 Difference]: With dead ends: 342 [2023-11-19 07:47:03,548 INFO L226 Difference]: Without dead ends: 342 [2023-11-19 07:47:03,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:03,553 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 115 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:03,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 565 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:47:03,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2023-11-19 07:47:03,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 322. [2023-11-19 07:47:03,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 308 states have (on average 1.2564935064935066) internal successors, (387), 315 states have internal predecessors, (387), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:47:03,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 405 transitions. [2023-11-19 07:47:03,588 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 405 transitions. Word has length 67 [2023-11-19 07:47:03,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:03,588 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 405 transitions. [2023-11-19 07:47:03,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:03,589 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 405 transitions. [2023-11-19 07:47:03,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-19 07:47:03,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:03,593 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:03,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:47:03,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:03,801 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:47:03,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:03,802 INFO L85 PathProgramCache]: Analyzing trace with hash -15915080, now seen corresponding path program 1 times [2023-11-19 07:47:03,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:03,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800666537] [2023-11-19 07:47:03,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:03,804 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 [2023-11-19 07:47:03,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:03,806 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:47:03,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:47:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:04,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:47:04,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:04,475 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:04,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:04,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:04,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800666537] [2023-11-19 07:47:04,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800666537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:04,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:04,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:47:04,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141036954] [2023-11-19 07:47:04,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:04,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:47:04,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:04,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:47:04,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:47:04,480 INFO L87 Difference]: Start difference. First operand 322 states and 405 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2023-11-19 07:47:04,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:04,550 INFO L93 Difference]: Finished difference Result 325 states and 409 transitions. [2023-11-19 07:47:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:04,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 82 [2023-11-19 07:47:04,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:04,554 INFO L225 Difference]: With dead ends: 325 [2023-11-19 07:47:04,554 INFO L226 Difference]: Without dead ends: 325 [2023-11-19 07:47:04,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:47:04,555 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 2 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:04,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 776 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:47:04,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-11-19 07:47:04,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2023-11-19 07:47:04,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 310 states have (on average 1.2580645161290323) internal successors, (390), 318 states have internal predecessors, (390), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-19 07:47:04,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 409 transitions. [2023-11-19 07:47:04,569 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 409 transitions. Word has length 82 [2023-11-19 07:47:04,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:04,570 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 409 transitions. [2023-11-19 07:47:04,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2023-11-19 07:47:04,571 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 409 transitions. [2023-11-19 07:47:04,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 07:47:04,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:04,575 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:04,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:04,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:04,785 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:47:04,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:04,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1558966730, now seen corresponding path program 1 times [2023-11-19 07:47:04,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:04,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870426638] [2023-11-19 07:47:04,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:04,787 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 [2023-11-19 07:47:04,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:04,788 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:47:04,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:47:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:05,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:47:05,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:05,479 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:47:05,479 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:47:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:47:05,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:05,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870426638] [2023-11-19 07:47:05,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870426638] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:47:05,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:47:05,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-19 07:47:05,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782963138] [2023-11-19 07:47:05,617 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:47:05,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:47:05,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:05,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:47:05,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:47:05,620 INFO L87 Difference]: Start difference. First operand 325 states and 409 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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) [2023-11-19 07:47:05,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:05,936 INFO L93 Difference]: Finished difference Result 336 states and 425 transitions. [2023-11-19 07:47:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:47:05,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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 84 [2023-11-19 07:47:05,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:05,940 INFO L225 Difference]: With dead ends: 336 [2023-11-19 07:47:05,940 INFO L226 Difference]: Without dead ends: 336 [2023-11-19 07:47:05,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:47:05,941 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 9 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:05,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1545 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:47:05,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-19 07:47:05,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 334. [2023-11-19 07:47:05,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 318 states have (on average 1.270440251572327) internal successors, (404), 326 states have internal predecessors, (404), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-19 07:47:05,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 423 transitions. [2023-11-19 07:47:05,956 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 423 transitions. Word has length 84 [2023-11-19 07:47:05,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:05,956 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 423 transitions. [2023-11-19 07:47:05,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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) [2023-11-19 07:47:05,957 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 423 transitions. [2023-11-19 07:47:05,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-19 07:47:05,959 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:05,959 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:05,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:06,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:06,170 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:47:06,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:06,170 INFO L85 PathProgramCache]: Analyzing trace with hash -455759784, now seen corresponding path program 2 times [2023-11-19 07:47:06,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:06,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690915] [2023-11-19 07:47:06,171 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:47:06,171 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 [2023-11-19 07:47:06,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:06,172 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:47:06,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:47:06,568 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:47:06,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:47:06,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:47:06,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:06,593 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:47:06,594 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:47:06,594 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:47:06,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-19 07:47:06,680 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:47:06,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-19 07:47:06,701 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-19 07:47:06,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:06,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:06,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690915] [2023-11-19 07:47:06,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [690915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:06,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:06,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:47:06,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277554131] [2023-11-19 07:47:06,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:06,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:47:06,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:06,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:47:06,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:47:06,704 INFO L87 Difference]: Start difference. First operand 334 states and 423 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2023-11-19 07:47:10,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:47:14,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:47:15,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:15,329 INFO L93 Difference]: Finished difference Result 422 states and 541 transitions. [2023-11-19 07:47:15,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:15,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 88 [2023-11-19 07:47:15,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:15,334 INFO L225 Difference]: With dead ends: 422 [2023-11-19 07:47:15,335 INFO L226 Difference]: Without dead ends: 422 [2023-11-19 07:47:15,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:47:15,336 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 136 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:15,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 673 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2023-11-19 07:47:15,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2023-11-19 07:47:15,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 336. [2023-11-19 07:47:15,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 320 states have (on average 1.26875) internal successors, (406), 328 states have internal predecessors, (406), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-19 07:47:15,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 425 transitions. [2023-11-19 07:47:15,354 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 425 transitions. Word has length 88 [2023-11-19 07:47:15,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:15,355 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 425 transitions. [2023-11-19 07:47:15,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2023-11-19 07:47:15,360 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 425 transitions. [2023-11-19 07:47:15,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-19 07:47:15,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:15,363 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:15,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:15,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:15,571 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:47:15,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:15,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1154731004, now seen corresponding path program 1 times [2023-11-19 07:47:15,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:15,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335456103] [2023-11-19 07:47:15,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:15,572 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 [2023-11-19 07:47:15,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:15,574 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:47:15,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:47:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:16,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:47:16,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:16,480 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:47:16,480 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:47:16,872 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:47:16,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:16,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335456103] [2023-11-19 07:47:16,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335456103] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:47:16,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:47:16,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-19 07:47:16,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462502611] [2023-11-19 07:47:16,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:47:16,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:47:16,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:16,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:47:16,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:47:16,876 INFO L87 Difference]: Start difference. First operand 336 states and 425 transitions. Second operand has 14 states, 14 states have (on average 9.285714285714286) internal successors, (130), 14 states have internal predecessors, (130), 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) [2023-11-19 07:47:18,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:18,000 INFO L93 Difference]: Finished difference Result 357 states and 453 transitions. [2023-11-19 07:47:18,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 07:47:18,002 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.285714285714286) internal successors, (130), 14 states have internal predecessors, (130), 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 125 [2023-11-19 07:47:18,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:18,005 INFO L225 Difference]: With dead ends: 357 [2023-11-19 07:47:18,005 INFO L226 Difference]: Without dead ends: 353 [2023-11-19 07:47:18,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-19 07:47:18,007 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 18 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:18,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1572 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:47:18,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-19 07:47:18,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 345. [2023-11-19 07:47:18,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 329 states have (on average 1.2705167173252279) internal successors, (418), 337 states have internal predecessors, (418), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-19 07:47:18,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 437 transitions. [2023-11-19 07:47:18,025 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 437 transitions. Word has length 125 [2023-11-19 07:47:18,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:18,026 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 437 transitions. [2023-11-19 07:47:18,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.285714285714286) internal successors, (130), 14 states have internal predecessors, (130), 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) [2023-11-19 07:47:18,026 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 437 transitions. [2023-11-19 07:47:18,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-19 07:47:18,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:18,029 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:18,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:18,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:18,239 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:47:18,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:18,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1519451847, now seen corresponding path program 2 times [2023-11-19 07:47:18,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:18,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649422626] [2023-11-19 07:47:18,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:47:18,240 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 [2023-11-19 07:47:18,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:18,241 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:47:18,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:47:18,669 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:47:18,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:47:18,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:47:18,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:18,744 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2023-11-19 07:47:18,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:18,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:18,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649422626] [2023-11-19 07:47:18,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649422626] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:18,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:18,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:47:18,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907713043] [2023-11-19 07:47:18,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:18,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:47:18,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:18,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:47:18,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:47:18,748 INFO L87 Difference]: Start difference. First operand 345 states and 437 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:47:18,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:18,909 INFO L93 Difference]: Finished difference Result 353 states and 429 transitions. [2023-11-19 07:47:18,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:18,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 134 [2023-11-19 07:47:18,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:18,912 INFO L225 Difference]: With dead ends: 353 [2023-11-19 07:47:18,913 INFO L226 Difference]: Without dead ends: 353 [2023-11-19 07:47:18,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:47:18,914 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 37 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:18,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 675 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:47:18,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-19 07:47:18,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 351. [2023-11-19 07:47:18,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 335 states have (on average 1.217910447761194) internal successors, (408), 343 states have internal predecessors, (408), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-19 07:47:18,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 427 transitions. [2023-11-19 07:47:18,927 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 427 transitions. Word has length 134 [2023-11-19 07:47:18,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:18,928 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 427 transitions. [2023-11-19 07:47:18,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:47:18,928 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 427 transitions. [2023-11-19 07:47:18,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-19 07:47:18,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:18,931 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:18,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:19,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:19,135 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:47:19,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:19,135 INFO L85 PathProgramCache]: Analyzing trace with hash -169522003, now seen corresponding path program 1 times [2023-11-19 07:47:19,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:19,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126900890] [2023-11-19 07:47:19,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:19,137 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 [2023-11-19 07:47:19,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:19,138 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:47:19,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:47:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:19,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:47:19,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:20,266 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 07:47:20,266 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:47:21,460 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:47:21,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:21,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126900890] [2023-11-19 07:47:21,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126900890] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:47:21,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:47:21,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-19 07:47:21,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244700825] [2023-11-19 07:47:21,462 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:47:21,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-19 07:47:21,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:21,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-19 07:47:21,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-19 07:47:21,465 INFO L87 Difference]: Start difference. First operand 351 states and 427 transitions. Second operand has 26 states, 26 states have (on average 5.461538461538462) internal successors, (142), 26 states have internal predecessors, (142), 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) [2023-11-19 07:47:25,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:25,799 INFO L93 Difference]: Finished difference Result 393 states and 485 transitions. [2023-11-19 07:47:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-19 07:47:25,801 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.461538461538462) internal successors, (142), 26 states have internal predecessors, (142), 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 134 [2023-11-19 07:47:25,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:25,805 INFO L225 Difference]: With dead ends: 393 [2023-11-19 07:47:25,805 INFO L226 Difference]: Without dead ends: 389 [2023-11-19 07:47:25,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-19 07:47:25,808 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 35 mSDsluCounter, 3307 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3566 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:25,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3566 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 07:47:25,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2023-11-19 07:47:25,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 369. [2023-11-19 07:47:25,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 353 states have (on average 1.2237960339943343) internal successors, (432), 361 states have internal predecessors, (432), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-19 07:47:25,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 451 transitions. [2023-11-19 07:47:25,826 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 451 transitions. Word has length 134 [2023-11-19 07:47:25,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:25,826 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 451 transitions. [2023-11-19 07:47:25,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.461538461538462) internal successors, (142), 26 states have internal predecessors, (142), 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) [2023-11-19 07:47:25,827 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 451 transitions. [2023-11-19 07:47:25,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-19 07:47:25,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:25,830 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:25,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:26,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:26,044 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:47:26,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:26,044 INFO L85 PathProgramCache]: Analyzing trace with hash 943941261, now seen corresponding path program 2 times [2023-11-19 07:47:26,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:26,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670930953] [2023-11-19 07:47:26,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:47:26,045 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 [2023-11-19 07:47:26,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:26,046 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:47:26,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:47:26,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:47:26,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:47:26,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:47:26,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:26,665 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2023-11-19 07:47:26,665 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:26,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:26,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670930953] [2023-11-19 07:47:26,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [670930953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:26,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:26,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:26,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593058054] [2023-11-19 07:47:26,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:26,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:26,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:26,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:26,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:26,669 INFO L87 Difference]: Start difference. First operand 369 states and 451 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:47:26,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:26,774 INFO L93 Difference]: Finished difference Result 371 states and 447 transitions. [2023-11-19 07:47:26,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:26,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 152 [2023-11-19 07:47:26,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:26,779 INFO L225 Difference]: With dead ends: 371 [2023-11-19 07:47:26,779 INFO L226 Difference]: Without dead ends: 371 [2023-11-19 07:47:26,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:26,780 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:26,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 470 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:47:26,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-11-19 07:47:26,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 369. [2023-11-19 07:47:26,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 353 states have (on average 1.206798866855524) internal successors, (426), 361 states have internal predecessors, (426), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-19 07:47:26,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 445 transitions. [2023-11-19 07:47:26,795 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 445 transitions. Word has length 152 [2023-11-19 07:47:26,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:26,796 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 445 transitions. [2023-11-19 07:47:26,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:47:26,796 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 445 transitions. [2023-11-19 07:47:26,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-19 07:47:26,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:26,799 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:26,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:27,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:27,004 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:47:27,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:27,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1965009615, now seen corresponding path program 1 times [2023-11-19 07:47:27,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:27,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976609686] [2023-11-19 07:47:27,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:27,006 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 [2023-11-19 07:47:27,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:27,007 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:47:27,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481a1219-1b6f-4b5a-b9fa-f3d195a8a591/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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