./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:21:37,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:21:37,944 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-09 07:21:37,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:21:37,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:21:38,005 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:21:38,006 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:21:38,007 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:21:38,008 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:21:38,009 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:21:38,010 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:21:38,010 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:21:38,011 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:21:38,012 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:21:38,016 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:21:38,017 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:21:38,017 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:21:38,017 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:21:38,018 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:21:38,018 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:21:38,019 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:21:38,024 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:21:38,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:21:38,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:21:38,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:21:38,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:21:38,026 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:21:38,026 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:21:38,026 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:21:38,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:21:38,027 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:21:38,031 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 07:21:38,032 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 07:21:38,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:21:38,032 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:21:38,033 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:21:38,033 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:21:38,033 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:21:38,033 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:21:38,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:21:38,034 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:21:38,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:21:38,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:21:38,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:21:38,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:21:38,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:21:38,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:21:38,038 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:21:38,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:21:38,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:21:38,040 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:21:38,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:21:38,040 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 [2024-11-09 07:21:38,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:21:38,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:21:38,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:21:38,533 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:21:38,534 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:21:38,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i Unable to find full path for "g++" [2024-11-09 07:21:40,897 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:21:41,442 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:21:41,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2024-11-09 07:21:41,466 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/data/df72f18a7/320e07d89eda4821a0a2a34706da5a3e/FLAG32d6ddd86 [2024-11-09 07:21:41,492 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/data/df72f18a7/320e07d89eda4821a0a2a34706da5a3e [2024-11-09 07:21:41,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:21:41,500 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:21:41,502 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:21:41,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:21:41,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:21:41,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:21:41" (1/1) ... [2024-11-09 07:21:41,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e853500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:41, skipping insertion in model container [2024-11-09 07:21:41,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:21:41" (1/1) ... [2024-11-09 07:21:41,621 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:21:42,318 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,389 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,398 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,406 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,422 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,497 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,500 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,505 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,508 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,515 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,519 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,522 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,524 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,525 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,532 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:42,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:21:42,557 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-09 07:21:42,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@787ba0c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:42, skipping insertion in model container [2024-11-09 07:21:42,558 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:21:42,559 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 07:21:42,561 INFO L158 Benchmark]: Toolchain (without parser) took 1060.82ms. Allocated memory is still 153.1MB. Free memory was 120.1MB in the beginning and 95.5MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 07:21:42,562 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:21:42,563 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1057.02ms. Allocated memory is still 153.1MB. Free memory was 119.7MB in the beginning and 95.5MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 07:21:42,566 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 117.4MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1057.02ms. Allocated memory is still 153.1MB. Free memory was 119.7MB in the beginning and 95.5MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 833]: 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_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:21:45,221 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:21:45,358 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-09 07:21:45,368 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:21:45,369 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:21:45,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:21:45,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:21:45,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:21:45,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:21:45,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:21:45,420 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:21:45,421 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:21:45,422 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:21:45,424 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:21:45,429 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:21:45,429 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:21:45,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:21:45,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:21:45,431 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:21:45,432 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:21:45,432 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:21:45,435 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:21:45,436 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:21:45,436 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:21:45,437 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:21:45,437 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 07:21:45,438 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 07:21:45,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:21:45,438 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:21:45,439 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:21:45,439 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:21:45,441 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:21:45,441 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:21:45,442 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:21:45,442 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:21:45,443 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:21:45,443 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:21:45,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:21:45,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:21:45,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:21:45,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:21:45,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:21:45,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:21:45,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:21:45,447 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:21:45,448 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:21:45,448 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:21:45,449 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:21:45,449 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 [2024-11-09 07:21:45,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:21:45,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:21:45,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:21:45,988 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:21:45,988 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:21:45,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i Unable to find full path for "g++" [2024-11-09 07:21:48,463 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:21:48,977 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:21:48,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2024-11-09 07:21:49,020 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/data/8260357fa/1a64d0bbecac4c33a8706625269eb424/FLAG8f0b0d029 [2024-11-09 07:21:49,044 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/data/8260357fa/1a64d0bbecac4c33a8706625269eb424 [2024-11-09 07:21:49,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:21:49,051 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:21:49,053 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:21:49,054 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:21:49,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:21:49,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:21:49" (1/1) ... [2024-11-09 07:21:49,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a07838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:49, skipping insertion in model container [2024-11-09 07:21:49,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:21:49" (1/1) ... [2024-11-09 07:21:49,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:21:49,919 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:49,998 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,006 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,016 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,033 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,119 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,119 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,123 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,127 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,130 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,136 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,143 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,148 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,149 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,192 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:21:50,226 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 07:21:50,245 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:21:50,321 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,342 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,345 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,348 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,353 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,378 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,379 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,381 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,382 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,384 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,387 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,390 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,393 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,394 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,402 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:21:50,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:21:50,417 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:21:50,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:21:50,613 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:21:50,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:50 WrapperNode [2024-11-09 07:21:50,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:21:50,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:21:50,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:21:50,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:21:50,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:50" (1/1) ... [2024-11-09 07:21:50,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:50" (1/1) ... [2024-11-09 07:21:50,743 INFO L138 Inliner]: procedures = 211, calls = 280, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1028 [2024-11-09 07:21:50,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:21:50,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:21:50,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:21:50,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:21:50,761 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:50" (1/1) ... [2024-11-09 07:21:50,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:50" (1/1) ... [2024-11-09 07:21:50,783 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:50" (1/1) ... [2024-11-09 07:21:50,784 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:50" (1/1) ... [2024-11-09 07:21:50,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:50" (1/1) ... [2024-11-09 07:21:50,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:50" (1/1) ... [2024-11-09 07:21:50,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:50" (1/1) ... [2024-11-09 07:21:50,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:50" (1/1) ... [2024-11-09 07:21:50,932 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:21:50,936 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:21:50,936 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:21:50,936 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:21:50,937 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:50" (1/1) ... [2024-11-09 07:21:50,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:21:50,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:21:50,989 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:21:50,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:21:51,036 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-09 07:21:51,036 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-09 07:21:51,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 07:21:51,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 07:21:51,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 07:21:51,038 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 07:21:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:21:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:21:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:21:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 07:21:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 07:21:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 07:21:51,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 07:21:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:21:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:21:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:21:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:21:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:21:51,413 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:21:51,416 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:21:59,282 INFO L? ?]: Removed 140 outVars from TransFormulas that were not future-live. [2024-11-09 07:21:59,283 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:21:59,311 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:21:59,312 INFO L316 CfgBuilder]: Removed 58 assume(true) statements. [2024-11-09 07:21:59,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:21:59 BoogieIcfgContainer [2024-11-09 07:21:59,312 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:21:59,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:21:59,315 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:21:59,321 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:21:59,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:21:49" (1/3) ... [2024-11-09 07:21:59,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56bcca1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:21:59, skipping insertion in model container [2024-11-09 07:21:59,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:50" (2/3) ... [2024-11-09 07:21:59,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56bcca1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:21:59, skipping insertion in model container [2024-11-09 07:21:59,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:21:59" (3/3) ... [2024-11-09 07:21:59,327 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test2-2.i [2024-11-09 07:21:59,352 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:21:59,352 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 07:21:59,433 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:21:59,443 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@174031be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:21:59,445 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 07:21:59,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 205 states have (on average 1.648780487804878) internal successors, (338), 214 states have internal predecessors, (338), 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) [2024-11-09 07:21:59,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 07:21:59,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:21:59,467 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:21:59,468 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:21:59,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:21:59,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1493350020, now seen corresponding path program 1 times [2024-11-09 07:21:59,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:21:59,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [678878409] [2024-11-09 07:21:59,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:59,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:21:59,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:21:59,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:21:59,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 07:21:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:59,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 07:21:59,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:21:59,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:59,824 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:21:59,825 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:21:59,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [678878409] [2024-11-09 07:21:59,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [678878409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:21:59,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:21:59,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:21:59,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555928788] [2024-11-09 07:21:59,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:21:59,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:21:59,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:21:59,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:21:59,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:21:59,887 INFO L87 Difference]: Start difference. First operand has 221 states, 205 states have (on average 1.648780487804878) internal successors, (338), 214 states have internal predecessors, (338), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:21:59,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:21:59,968 INFO L93 Difference]: Finished difference Result 219 states and 291 transitions. [2024-11-09 07:21:59,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:21:59,971 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 07:21:59,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:21:59,984 INFO L225 Difference]: With dead ends: 219 [2024-11-09 07:21:59,984 INFO L226 Difference]: Without dead ends: 217 [2024-11-09 07:21:59,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:21:59,991 INFO L432 NwaCegarLoop]: 291 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, 291 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 [2024-11-09 07:21:59,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:22:00,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-09 07:22:00,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2024-11-09 07:22:00,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 203 states have (on average 1.3349753694581281) internal successors, (271), 210 states have internal predecessors, (271), 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) [2024-11-09 07:22:00,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 289 transitions. [2024-11-09 07:22:00,057 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 289 transitions. Word has length 11 [2024-11-09 07:22:00,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:00,058 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 289 transitions. [2024-11-09 07:22:00,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:22:00,059 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 289 transitions. [2024-11-09 07:22:00,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 07:22:00,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:00,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:00,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 07:22:00,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:00,262 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:22:00,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:00,263 INFO L85 PathProgramCache]: Analyzing trace with hash 2128570867, now seen corresponding path program 1 times [2024-11-09 07:22:00,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:22:00,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563424030] [2024-11-09 07:22:00,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:00,265 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:00,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:22:00,269 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:22:00,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 07:22:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:00,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:22:00,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:00,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:22:00,632 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:22:00,632 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:22:00,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563424030] [2024-11-09 07:22:00,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563424030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:22:00,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:22:00,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:22:00,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940149329] [2024-11-09 07:22:00,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:22:00,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:22:00,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:22:00,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:22:00,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:22:00,637 INFO L87 Difference]: Start difference. First operand 217 states and 289 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:22:01,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:01,800 INFO L93 Difference]: Finished difference Result 351 states and 472 transitions. [2024-11-09 07:22:01,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:22:01,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2024-11-09 07:22:01,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:01,814 INFO L225 Difference]: With dead ends: 351 [2024-11-09 07:22:01,814 INFO L226 Difference]: Without dead ends: 351 [2024-11-09 07:22:01,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:22:01,816 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 163 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:01,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 540 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 07:22:01,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-09 07:22:01,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 319. [2024-11-09 07:22:01,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 300 states have (on average 1.34) internal successors, (402), 312 states have internal predecessors, (402), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 07:22:01,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 430 transitions. [2024-11-09 07:22:01,870 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 430 transitions. Word has length 13 [2024-11-09 07:22:01,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:01,871 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 430 transitions. [2024-11-09 07:22:01,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:22:01,871 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 430 transitions. [2024-11-09 07:22:01,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 07:22:01,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:01,872 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:01,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 07:22:02,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:02,078 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:22:02,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:02,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2130417909, now seen corresponding path program 1 times [2024-11-09 07:22:02,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:22:02,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985789196] [2024-11-09 07:22:02,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:02,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:02,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:22:02,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:22:02,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 07:22:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:02,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:22:02,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:02,415 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:22:02,417 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:22:02,418 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:22:02,432 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 [2024-11-09 07:22:02,539 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:22:02,540 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 [2024-11-09 07:22:02,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:22:02,569 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:22:02,569 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:22:02,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985789196] [2024-11-09 07:22:02,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985789196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:22:02,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:22:02,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:22:02,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654135164] [2024-11-09 07:22:02,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:22:02,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:22:02,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:22:02,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:22:02,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:22:02,573 INFO L87 Difference]: Start difference. First operand 319 states and 430 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:22:06,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:22:08,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:22:09,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:09,254 INFO L93 Difference]: Finished difference Result 435 states and 598 transitions. [2024-11-09 07:22:09,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:22:09,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-11-09 07:22:09,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:09,259 INFO L225 Difference]: With dead ends: 435 [2024-11-09 07:22:09,259 INFO L226 Difference]: Without dead ends: 435 [2024-11-09 07:22:09,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:22:09,261 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 177 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:09,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 722 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2024-11-09 07:22:09,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-11-09 07:22:09,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 318. [2024-11-09 07:22:09,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 299 states have (on average 1.3377926421404682) internal successors, (400), 311 states have internal predecessors, (400), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 07:22:09,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 428 transitions. [2024-11-09 07:22:09,288 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 428 transitions. Word has length 13 [2024-11-09 07:22:09,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:09,288 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 428 transitions. [2024-11-09 07:22:09,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:22:09,289 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 428 transitions. [2024-11-09 07:22:09,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 07:22:09,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:09,292 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:09,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-09 07:22:09,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:09,497 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:22:09,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:09,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1717083703, now seen corresponding path program 1 times [2024-11-09 07:22:09,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:22:09,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277536255] [2024-11-09 07:22:09,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:09,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:09,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:22:09,504 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:22:09,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 07:22:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:10,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:22:10,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:10,289 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:22:10,294 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:22:10,294 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:22:10,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277536255] [2024-11-09 07:22:10,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277536255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:22:10,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:22:10,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:22:10,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043988170] [2024-11-09 07:22:10,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:22:10,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:22:10,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:22:10,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:22:10,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:22:10,303 INFO L87 Difference]: Start difference. First operand 318 states and 428 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2024-11-09 07:22:10,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:10,488 INFO L93 Difference]: Finished difference Result 322 states and 414 transitions. [2024-11-09 07:22:10,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:22:10,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 84 [2024-11-09 07:22:10,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:10,491 INFO L225 Difference]: With dead ends: 322 [2024-11-09 07:22:10,491 INFO L226 Difference]: Without dead ends: 322 [2024-11-09 07:22:10,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:22:10,493 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 30 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:10,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 752 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:22:10,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-09 07:22:10,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2024-11-09 07:22:10,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 303 states have (on average 1.273927392739274) internal successors, (386), 315 states have internal predecessors, (386), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 07:22:10,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 414 transitions. [2024-11-09 07:22:10,533 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 414 transitions. Word has length 84 [2024-11-09 07:22:10,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:10,534 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 414 transitions. [2024-11-09 07:22:10,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2024-11-09 07:22:10,534 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 414 transitions. [2024-11-09 07:22:10,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 07:22:10,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:10,538 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:10,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-09 07:22:10,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:10,739 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:22:10,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:10,740 INFO L85 PathProgramCache]: Analyzing trace with hash -935137579, now seen corresponding path program 1 times [2024-11-09 07:22:10,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:22:10,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448979396] [2024-11-09 07:22:10,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:10,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:10,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:22:10,746 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:22:10,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 07:22:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:11,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:22:11,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:11,585 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:22:11,586 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:22:11,586 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:22:11,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448979396] [2024-11-09 07:22:11,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448979396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:22:11,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:22:11,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:22:11,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055503333] [2024-11-09 07:22:11,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:22:11,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:22:11,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:22:11,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:22:11,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:22:11,592 INFO L87 Difference]: Start difference. First operand 322 states and 414 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-11-09 07:22:11,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:11,649 INFO L93 Difference]: Finished difference Result 325 states and 418 transitions. [2024-11-09 07:22:11,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:22:11,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 84 [2024-11-09 07:22:11,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:11,653 INFO L225 Difference]: With dead ends: 325 [2024-11-09 07:22:11,653 INFO L226 Difference]: Without dead ends: 325 [2024-11-09 07:22:11,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:22:11,655 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 0 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 815 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 [2024-11-09 07:22:11,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 815 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:22:11,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-09 07:22:11,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2024-11-09 07:22:11,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 305 states have (on average 1.2754098360655737) internal successors, (389), 318 states have internal predecessors, (389), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-09 07:22:11,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 418 transitions. [2024-11-09 07:22:11,673 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 418 transitions. Word has length 84 [2024-11-09 07:22:11,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:11,674 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 418 transitions. [2024-11-09 07:22:11,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-11-09 07:22:11,674 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 418 transitions. [2024-11-09 07:22:11,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 07:22:11,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:11,678 INFO L215 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, 1, 1] [2024-11-09 07:22:11,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-09 07:22:11,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:11,879 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:22:11,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:11,879 INFO L85 PathProgramCache]: Analyzing trace with hash 742537491, now seen corresponding path program 1 times [2024-11-09 07:22:11,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:22:11,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296924410] [2024-11-09 07:22:11,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:11,881 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:11,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:22:11,886 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:22:11,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 07:22:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:12,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:22:12,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:12,736 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:22:12,736 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:22:12,919 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:22:12,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296924410] [2024-11-09 07:22:12,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296924410] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:12,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [725107950] [2024-11-09 07:22:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:12,921 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:22:12,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:22:12,924 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:22:12,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-09 07:22:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:13,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:22:13,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:14,228 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 07:22:14,229 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:22:14,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [725107950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:22:14,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:22:14,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-09 07:22:14,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787790209] [2024-11-09 07:22:14,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:22:14,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:22:14,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:22:14,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:22:14,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:22:14,239 INFO L87 Difference]: Start difference. First operand 325 states and 418 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-11-09 07:22:17,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:22:19,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:22:21,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:21,504 INFO L93 Difference]: Finished difference Result 338 states and 425 transitions. [2024-11-09 07:22:21,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:22:21,505 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), 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 86 [2024-11-09 07:22:21,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:21,506 INFO L225 Difference]: With dead ends: 338 [2024-11-09 07:22:21,506 INFO L226 Difference]: Without dead ends: 338 [2024-11-09 07:22:21,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:22:21,507 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 450 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:21,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 447 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 93 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2024-11-09 07:22:21,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-09 07:22:21,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 268. [2024-11-09 07:22:21,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 253 states have (on average 1.2411067193675889) internal successors, (314), 261 states have internal predecessors, (314), 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) [2024-11-09 07:22:21,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 333 transitions. [2024-11-09 07:22:21,521 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 333 transitions. Word has length 86 [2024-11-09 07:22:21,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:21,522 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 333 transitions. [2024-11-09 07:22:21,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-11-09 07:22:21,522 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 333 transitions. [2024-11-09 07:22:21,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 07:22:21,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:21,527 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:21,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:22:21,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-09 07:22:21,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 07:22:21,928 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:22:21,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:21,929 INFO L85 PathProgramCache]: Analyzing trace with hash -469880394, now seen corresponding path program 1 times [2024-11-09 07:22:21,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:22:21,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152682308] [2024-11-09 07:22:21,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:21,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:21,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:22:21,935 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:22:21,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 07:22:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:22,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:22:22,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:22,656 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:22:22,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:22,815 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:22:22,815 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:22:22,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152682308] [2024-11-09 07:22:22,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152682308] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:22,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [747726848] [2024-11-09 07:22:22,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:22,827 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:22:22,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:22:22,830 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:22:22,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-09 07:22:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:23,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:22:23,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:23,848 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:22:23,848 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:22:23,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [747726848] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:23,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716845160] [2024-11-09 07:22:23,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:23,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:23,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:22:23,932 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:22:23,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 07:22:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:24,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:22:24,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:24,865 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:22:24,865 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:22:24,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716845160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:22:24,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-09 07:22:24,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5, 5] total 10 [2024-11-09 07:22:24,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771354121] [2024-11-09 07:22:24,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:22:24,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:22:24,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:22:24,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:22:24,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:22:24,869 INFO L87 Difference]: Start difference. First operand 268 states and 333 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2024-11-09 07:22:27,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:22:29,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:22:33,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:33,574 INFO L93 Difference]: Finished difference Result 270 states and 334 transitions. [2024-11-09 07:22:33,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:22:33,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 96 [2024-11-09 07:22:33,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:33,577 INFO L225 Difference]: With dead ends: 270 [2024-11-09 07:22:33,577 INFO L226 Difference]: Without dead ends: 270 [2024-11-09 07:22:33,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 467 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:22:33,579 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 231 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:33,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 495 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2024-11-09 07:22:33,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-09 07:22:33,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 268. [2024-11-09 07:22:33,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 253 states have (on average 1.2371541501976284) internal successors, (313), 261 states have internal predecessors, (313), 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) [2024-11-09 07:22:33,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 332 transitions. [2024-11-09 07:22:33,591 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 332 transitions. Word has length 96 [2024-11-09 07:22:33,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:33,592 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 332 transitions. [2024-11-09 07:22:33,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2024-11-09 07:22:33,592 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 332 transitions. [2024-11-09 07:22:33,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 07:22:33,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:33,595 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:33,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-09 07:22:33,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-09 07:22:34,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 07:22:34,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:34,196 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:22:34,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:34,197 INFO L85 PathProgramCache]: Analyzing trace with hash -468033352, now seen corresponding path program 1 times [2024-11-09 07:22:34,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:22:34,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067617020] [2024-11-09 07:22:34,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:34,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:34,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:22:34,201 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:22:34,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-09 07:22:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:34,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:22:34,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:34,886 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:22:34,887 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:35,032 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:22:35,032 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:22:35,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067617020] [2024-11-09 07:22:35,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067617020] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:35,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1349530294] [2024-11-09 07:22:35,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:35,033 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:22:35,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:22:35,037 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:22:35,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-09 07:22:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:36,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:22:36,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:36,231 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:22:36,232 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:36,326 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:22:36,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1349530294] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:36,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734321347] [2024-11-09 07:22:36,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:36,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:36,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:22:36,329 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:22:36,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 07:22:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:36,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:22:36,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:37,021 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:22:37,021 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:37,209 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:22:37,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734321347] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:37,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 07:22:37,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2024-11-09 07:22:37,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93962558] [2024-11-09 07:22:37,211 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 07:22:37,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 07:22:37,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:22:37,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 07:22:37,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:22:37,213 INFO L87 Difference]: Start difference. First operand 268 states and 332 transitions. Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 07:22:37,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:37,669 INFO L93 Difference]: Finished difference Result 283 states and 354 transitions. [2024-11-09 07:22:37,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 07:22:37,671 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 96 [2024-11-09 07:22:37,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:37,673 INFO L225 Difference]: With dead ends: 283 [2024-11-09 07:22:37,673 INFO L226 Difference]: Without dead ends: 283 [2024-11-09 07:22:37,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-09 07:22:37,675 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 13 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1330 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:37,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1330 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:22:37,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-09 07:22:37,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 279. [2024-11-09 07:22:37,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 263 states have (on average 1.258555133079848) internal successors, (331), 271 states have internal predecessors, (331), 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) [2024-11-09 07:22:37,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 350 transitions. [2024-11-09 07:22:37,686 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 350 transitions. Word has length 96 [2024-11-09 07:22:37,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:37,686 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 350 transitions. [2024-11-09 07:22:37,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 07:22:37,687 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 350 transitions. [2024-11-09 07:22:37,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 07:22:37,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:37,689 INFO L215 NwaCegarLoop]: trace histogram [8, 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] [2024-11-09 07:22:37,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-09 07:22:37,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:22:38,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 07:22:38,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:38,290 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:22:38,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:38,291 INFO L85 PathProgramCache]: Analyzing trace with hash 2094785018, now seen corresponding path program 2 times [2024-11-09 07:22:38,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:22:38,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970124729] [2024-11-09 07:22:38,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:22:38,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:38,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:22:38,293 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:22:38,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 (15)] Waiting until timeout for monitored process [2024-11-09 07:22:38,786 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 07:22:38,786 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:22:38,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 07:22:38,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:38,809 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:22:38,810 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:22:38,811 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:22:38,815 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 [2024-11-09 07:22:38,898 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:22:38,898 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 [2024-11-09 07:22:38,924 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-09 07:22:38,924 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:22:38,924 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:22:38,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970124729] [2024-11-09 07:22:38,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970124729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:22:38,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:22:38,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:22:38,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081332637] [2024-11-09 07:22:38,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:22:38,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:22:38,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:22:38,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:22:38,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:22:38,927 INFO L87 Difference]: Start difference. First operand 279 states and 350 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2024-11-09 07:22:41,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:22:44,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:22:46,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:22:46,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:46,250 INFO L93 Difference]: Finished difference Result 355 states and 457 transitions. [2024-11-09 07:22:46,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:22:46,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 102 [2024-11-09 07:22:46,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:46,254 INFO L225 Difference]: With dead ends: 355 [2024-11-09 07:22:46,254 INFO L226 Difference]: Without dead ends: 355 [2024-11-09 07:22:46,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:22:46,255 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 134 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:46,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 686 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2024-11-09 07:22:46,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-09 07:22:46,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 281. [2024-11-09 07:22:46,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 265 states have (on average 1.2566037735849056) internal successors, (333), 273 states have internal predecessors, (333), 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) [2024-11-09 07:22:46,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 352 transitions. [2024-11-09 07:22:46,282 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 352 transitions. Word has length 102 [2024-11-09 07:22:46,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:46,282 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 352 transitions. [2024-11-09 07:22:46,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2024-11-09 07:22:46,283 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 352 transitions. [2024-11-09 07:22:46,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 07:22:46,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:46,285 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:46,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 (15)] Forceful destruction successful, exit code 0 [2024-11-09 07:22:46,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:46,486 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:22:46,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:46,486 INFO L85 PathProgramCache]: Analyzing trace with hash 537926768, now seen corresponding path program 1 times [2024-11-09 07:22:46,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:22:46,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807691797] [2024-11-09 07:22:46,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:46,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:46,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:22:46,488 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:22:46,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 (16)] Waiting until timeout for monitored process [2024-11-09 07:22:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:47,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:22:47,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:47,421 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 07:22:47,421 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:47,789 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:22:47,789 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:22:47,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807691797] [2024-11-09 07:22:47,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807691797] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:47,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [525870563] [2024-11-09 07:22:47,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:47,791 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:22:47,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:22:47,795 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:22:47,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-09 07:22:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:48,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:22:48,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:49,000 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-09 07:22:49,000 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:22:49,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [525870563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:22:49,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:22:49,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 16 [2024-11-09 07:22:49,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395909419] [2024-11-09 07:22:49,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:22:49,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:22:49,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:22:49,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:22:49,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-09 07:22:49,004 INFO L87 Difference]: Start difference. First operand 281 states and 352 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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) [2024-11-09 07:22:49,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:49,262 INFO L93 Difference]: Finished difference Result 290 states and 355 transitions. [2024-11-09 07:22:49,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:22:49,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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 135 [2024-11-09 07:22:49,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:49,268 INFO L225 Difference]: With dead ends: 290 [2024-11-09 07:22:49,268 INFO L226 Difference]: Without dead ends: 290 [2024-11-09 07:22:49,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-09 07:22:49,270 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 22 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:49,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 703 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:22:49,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-09 07:22:49,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 289. [2024-11-09 07:22:49,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 273 states have (on average 1.2271062271062272) internal successors, (335), 281 states have internal predecessors, (335), 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) [2024-11-09 07:22:49,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 354 transitions. [2024-11-09 07:22:49,280 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 354 transitions. Word has length 135 [2024-11-09 07:22:49,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:49,281 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 354 transitions. [2024-11-09 07:22:49,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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) [2024-11-09 07:22:49,282 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 354 transitions. [2024-11-09 07:22:49,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 07:22:49,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:49,284 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:49,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-09 07:22:49,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 (16)] Forceful destruction successful, exit code 0 [2024-11-09 07:22:49,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:49,685 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:22:49,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:49,686 INFO L85 PathProgramCache]: Analyzing trace with hash 515294514, now seen corresponding path program 1 times [2024-11-09 07:22:49,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:22:49,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503346208] [2024-11-09 07:22:49,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:49,687 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:49,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:22:49,688 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:22:49,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 (18)] Waiting until timeout for monitored process [2024-11-09 07:22:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:50,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:22:50,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:50,600 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 07:22:50,600 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:51,065 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:22:51,065 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:22:51,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503346208] [2024-11-09 07:22:51,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503346208] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:51,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [714693698] [2024-11-09 07:22:51,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:51,066 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:22:51,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:22:51,070 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:22:51,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-09 07:22:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:52,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:22:52,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:52,510 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-09 07:22:52,510 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:22:52,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [714693698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:22:52,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:22:52,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 17 [2024-11-09 07:22:52,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724064264] [2024-11-09 07:22:52,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:22:52,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:22:52,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:22:52,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:22:52,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-09 07:22:52,517 INFO L87 Difference]: Start difference. First operand 289 states and 354 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2024-11-09 07:22:52,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:52,725 INFO L93 Difference]: Finished difference Result 277 states and 335 transitions. [2024-11-09 07:22:52,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:22:52,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 135 [2024-11-09 07:22:52,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:52,727 INFO L225 Difference]: With dead ends: 277 [2024-11-09 07:22:52,727 INFO L226 Difference]: Without dead ends: 277 [2024-11-09 07:22:52,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-09 07:22:52,729 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 12 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:52,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 928 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:22:52,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-09 07:22:52,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2024-11-09 07:22:52,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 261 states have (on average 1.210727969348659) internal successors, (316), 269 states have internal predecessors, (316), 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) [2024-11-09 07:22:52,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 335 transitions. [2024-11-09 07:22:52,739 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 335 transitions. Word has length 135 [2024-11-09 07:22:52,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:52,739 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 335 transitions. [2024-11-09 07:22:52,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2024-11-09 07:22:52,740 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 335 transitions. [2024-11-09 07:22:52,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 07:22:52,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:52,742 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:52,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 (18)] Ended with exit code 0 [2024-11-09 07:22:52,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-09 07:22:53,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 07:22:53,143 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:22:53,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:53,144 INFO L85 PathProgramCache]: Analyzing trace with hash 293651238, now seen corresponding path program 1 times [2024-11-09 07:22:53,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:22:53,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085154272] [2024-11-09 07:22:53,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:53,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:22:53,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:22:53,146 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:22:53,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 (20)] Waiting until timeout for monitored process [2024-11-09 07:22:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:54,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:22:54,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 07:22:54,175 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:54,588 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:22:54,589 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:22:54,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085154272] [2024-11-09 07:22:54,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085154272] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:54,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1864090665] [2024-11-09 07:22:54,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:54,590 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:22:54,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:22:54,593 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:22:54,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-09 07:22:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:56,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:22:56,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 07:22:56,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:22:56,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1864090665] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:56,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072414885] [2024-11-09 07:22:56,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:56,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:56,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:22:56,216 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:22:56,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 07:22:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:57,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 07:22:57,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:57,300 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:22:57,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:57,799 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 07:22:57,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072414885] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:57,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 07:22:57,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 22 [2024-11-09 07:22:57,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942722969] [2024-11-09 07:22:57,801 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 07:22:57,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 07:22:57,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:22:57,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 07:22:57,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:22:57,804 INFO L87 Difference]: Start difference. First operand 277 states and 335 transitions. Second operand has 22 states, 22 states have (on average 6.818181818181818) internal successors, (150), 22 states have internal predecessors, (150), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 07:22:59,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:59,640 INFO L93 Difference]: Finished difference Result 297 states and 364 transitions. [2024-11-09 07:22:59,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 07:22:59,641 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.818181818181818) internal successors, (150), 22 states have internal predecessors, (150), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 135 [2024-11-09 07:22:59,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:59,643 INFO L225 Difference]: With dead ends: 297 [2024-11-09 07:22:59,643 INFO L226 Difference]: Without dead ends: 291 [2024-11-09 07:22:59,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 825 GetRequests, 784 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=505, Invalid=1301, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 07:22:59,645 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 25 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2990 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:59,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2990 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 07:22:59,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-09 07:22:59,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 289. [2024-11-09 07:22:59,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 273 states have (on average 1.2197802197802199) internal successors, (333), 281 states have internal predecessors, (333), 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) [2024-11-09 07:22:59,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 352 transitions. [2024-11-09 07:22:59,656 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 352 transitions. Word has length 135 [2024-11-09 07:22:59,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:59,656 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 352 transitions. [2024-11-09 07:22:59,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.818181818181818) internal successors, (150), 22 states have internal predecessors, (150), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 07:22:59,656 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 352 transitions. [2024-11-09 07:22:59,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-09 07:22:59,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:59,659 INFO L215 NwaCegarLoop]: trace histogram [20, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:59,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 (20)] Ended with exit code 0 [2024-11-09 07:22:59,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2024-11-09 07:23:00,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-09 07:23:00,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:23:00,260 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:23:00,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:23:00,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1526384090, now seen corresponding path program 2 times [2024-11-09 07:23:00,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:23:00,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896676277] [2024-11-09 07:23:00,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:23:00,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:23:00,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:23:00,266 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:23:00,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 (23)] Waiting until timeout for monitored process [2024-11-09 07:23:01,213 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:23:01,213 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:23:01,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 07:23:01,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:23:01,639 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 126 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-09 07:23:01,639 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:23:02,714 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 178 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:23:02,714 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:23:02,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896676277] [2024-11-09 07:23:02,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896676277] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:23:02,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [850512758] [2024-11-09 07:23:02,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:23:02,715 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:23:02,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:23:02,716 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:23:02,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-11-09 07:23:04,675 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:23:04,675 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:23:04,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 07:23:04,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:23:04,753 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 126 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-09 07:23:04,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:23:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 178 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:23:04,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [850512758] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:23:04,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336228912] [2024-11-09 07:23:04,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:23:04,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:23:04,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:23:04,977 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:23:04,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 07:23:05,958 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:23:05,959 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:23:05,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 07:23:05,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:23:06,184 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:23:06,184 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:23:07,794 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:23:07,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336228912] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:23:07,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 07:23:07,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 14, 14] total 40 [2024-11-09 07:23:07,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424904234] [2024-11-09 07:23:07,796 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 07:23:07,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-09 07:23:07,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:23:07,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-09 07:23:07,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=1147, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 07:23:07,799 INFO L87 Difference]: Start difference. First operand 289 states and 352 transitions. Second operand has 40 states, 40 states have (on average 4.2) internal successors, (168), 40 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 07:23:13,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:23:13,578 INFO L93 Difference]: Finished difference Result 321 states and 405 transitions. [2024-11-09 07:23:13,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-09 07:23:13,579 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 4.2) internal successors, (168), 40 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 147 [2024-11-09 07:23:13,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:23:13,584 INFO L225 Difference]: With dead ends: 321 [2024-11-09 07:23:13,584 INFO L226 Difference]: Without dead ends: 315 [2024-11-09 07:23:13,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 838 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1873, Invalid=5267, Unknown=0, NotChecked=0, Total=7140 [2024-11-09 07:23:13,586 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 48 mSDsluCounter, 5711 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 5964 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:23:13,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 5964 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 07:23:13,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-09 07:23:13,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 313. [2024-11-09 07:23:13,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 297 states have (on average 1.239057239057239) internal successors, (368), 305 states have internal predecessors, (368), 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) [2024-11-09 07:23:13,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 387 transitions. [2024-11-09 07:23:13,598 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 387 transitions. Word has length 147 [2024-11-09 07:23:13,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:23:13,599 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 387 transitions. [2024-11-09 07:23:13,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 4.2) internal successors, (168), 40 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 07:23:13,599 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 387 transitions. [2024-11-09 07:23:13,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-09 07:23:13,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:23:13,602 INFO L215 NwaCegarLoop]: trace histogram [44, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:23:13,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 (23)] Forceful destruction successful, exit code 0 [2024-11-09 07:23:13,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-09 07:23:14,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2024-11-09 07:23:14,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 07:23:14,203 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 07:23:14,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:23:14,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1045714982, now seen corresponding path program 3 times [2024-11-09 07:23:14,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:23:14,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883512750] [2024-11-09 07:23:14,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:23:14,205 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:23:14,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:23:14,208 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:23:14,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/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 (26)] Waiting until timeout for monitored process [2024-11-09 07:23:22,399 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-11-09 07:23:22,399 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:23:22,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 07:23:22,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:23:23,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 533 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-09 07:23:23,701 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:23:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 533 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-09 07:23:27,747 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:23:27,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883512750] [2024-11-09 07:23:27,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883512750] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:23:27,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1048164625] [2024-11-09 07:23:27,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:23:27,748 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:23:27,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:23:27,749 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:23:27,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78435fd5-ef0a-47c7-ae57-40bb4b1ddc7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process