./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.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_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:01:25,156 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:01:25,244 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-09 06:01:25,250 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:01:25,251 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:01:25,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:01:25,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:01:25,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:01:25,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:01:25,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:01:25,282 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:01:25,283 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:01:25,283 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:01:25,284 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:01:25,284 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:01:25,285 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:01:25,285 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:01:25,286 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:01:25,286 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:01:25,287 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:01:25,287 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:01:25,291 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:01:25,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:01:25,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:01:25,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:01:25,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:01:25,293 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:01:25,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:01:25,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:01:25,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:01:25,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:01:25,298 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 06:01:25,299 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 06:01:25,299 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:01:25,299 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:01:25,300 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:01:25,300 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:01:25,300 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:01:25,301 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:01:25,301 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:01:25,301 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:01:25,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:01:25,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:01:25,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:01:25,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:01:25,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:01:25,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:01:25,305 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:01:25,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:01:25,306 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:01:25,306 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:01:25,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:01:25,307 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_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 [2024-11-09 06:01:25,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:01:25,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:01:25,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:01:25,665 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:01:25,666 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:01:25,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i Unable to find full path for "g++" [2024-11-09 06:01:27,834 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:01:28,216 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:01:28,217 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2024-11-09 06:01:28,244 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/data/3f30cc4c9/1e1923af504649b1800ad4afd221351f/FLAG476c32254 [2024-11-09 06:01:28,267 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/data/3f30cc4c9/1e1923af504649b1800ad4afd221351f [2024-11-09 06:01:28,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:01:28,272 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:01:28,273 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:01:28,274 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:01:28,281 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:01:28,282 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:01:28" (1/1) ... [2024-11-09 06:01:28,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@570f427e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:28, skipping insertion in model container [2024-11-09 06:01:28,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:01:28" (1/1) ... [2024-11-09 06:01:28,371 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:01:28,885 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 06:01:28,936 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 06:01:28,944 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 06:01:28,951 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 06:01:28,964 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 06:01:29,027 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 06:01:29,027 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 06:01:29,034 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 06:01:29,034 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 06:01:29,038 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 06:01:29,040 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 06:01:29,041 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 06:01:29,042 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 06:01:29,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:01:29,068 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 06:01:29,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6e79fe82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:29, skipping insertion in model container [2024-11-09 06:01:29,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:01:29,070 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 06:01:29,072 INFO L158 Benchmark]: Toolchain (without parser) took 799.57ms. Allocated memory is still 138.4MB. Free memory was 104.5MB in the beginning and 81.1MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 06:01:29,073 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 138.4MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:01:29,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 796.71ms. Allocated memory is still 138.4MB. Free memory was 104.0MB in the beginning and 81.1MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 06:01:29,075 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 138.4MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 796.71ms. Allocated memory is still 138.4MB. Free memory was 104.0MB in the beginning and 81.1MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 778]: 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_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:01:31,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:01:31,603 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-09 06:01:31,611 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:01:31,612 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:01:31,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:01:31,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:01:31,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:01:31,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:01:31,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:01:31,664 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:01:31,664 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:01:31,665 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:01:31,666 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:01:31,666 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:01:31,666 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:01:31,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:01:31,668 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:01:31,668 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:01:31,673 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:01:31,674 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:01:31,678 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:01:31,678 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:01:31,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:01:31,679 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:01:31,680 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 06:01:31,680 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 06:01:31,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:01:31,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:01:31,683 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:01:31,684 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:01:31,684 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:01:31,685 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:01:31,685 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:01:31,687 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:01:31,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:01:31,687 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:01:31,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:01:31,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:01:31,689 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:01:31,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:01:31,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:01:31,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:01:31,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:01:31,691 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:01:31,692 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:01:31,692 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:01:31,693 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:01:31,693 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_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 [2024-11-09 06:01:32,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:01:32,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:01:32,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:01:32,240 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:01:32,240 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:01:32,242 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i Unable to find full path for "g++" [2024-11-09 06:01:34,404 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:01:34,888 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:01:34,889 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2024-11-09 06:01:34,913 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/data/fa6b6dc00/42c5975960c946929bb65e2030c25851/FLAGa1dd03d85 [2024-11-09 06:01:34,986 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/data/fa6b6dc00/42c5975960c946929bb65e2030c25851 [2024-11-09 06:01:34,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:01:34,993 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:01:34,994 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:01:34,998 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:01:35,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:01:35,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:01:34" (1/1) ... [2024-11-09 06:01:35,009 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c8cdfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:35, skipping insertion in model container [2024-11-09 06:01:35,011 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:01:34" (1/1) ... [2024-11-09 06:01:35,091 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:01:35,652 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 06:01:35,725 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 06:01:35,749 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 06:01:35,761 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 06:01:35,792 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 06:01:35,846 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 06:01:35,846 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 06:01:35,849 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 06:01:35,850 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 06:01:35,853 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 06:01:35,855 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 06:01:35,857 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 06:01:35,858 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 06:01:35,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:01:35,883 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 06:01:35,903 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:01:35,952 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 06:01:35,987 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 06:01:35,994 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 06:01:36,001 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 06:01:36,016 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 06:01:36,070 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 06:01:36,073 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 06:01:36,078 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 06:01:36,081 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 06:01:36,088 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 06:01:36,090 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 06:01:36,095 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 06:01:36,096 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 06:01:36,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:01:36,113 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:01:36,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:01:36,298 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:01:36,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:36 WrapperNode [2024-11-09 06:01:36,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:01:36,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:01:36,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:01:36,300 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:01:36,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:36" (1/1) ... [2024-11-09 06:01:36,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:36" (1/1) ... [2024-11-09 06:01:36,422 INFO L138 Inliner]: procedures = 180, calls = 291, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 984 [2024-11-09 06:01:36,422 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:01:36,423 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:01:36,423 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:01:36,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:01:36,434 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:36" (1/1) ... [2024-11-09 06:01:36,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:36" (1/1) ... [2024-11-09 06:01:36,447 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:36" (1/1) ... [2024-11-09 06:01:36,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:36" (1/1) ... [2024-11-09 06:01:36,496 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:36" (1/1) ... [2024-11-09 06:01:36,507 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:36" (1/1) ... [2024-11-09 06:01:36,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:36" (1/1) ... [2024-11-09 06:01:36,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:36" (1/1) ... [2024-11-09 06:01:36,533 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:01:36,534 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:01:36,534 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:01:36,534 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:01:36,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:36" (1/1) ... [2024-11-09 06:01:36,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:01:36,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:01:36,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:01:36,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:01:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-09 06:01:36,616 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-09 06:01:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 06:01:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 06:01:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:01:36,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:01:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 06:01:36,618 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 06:01:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2024-11-09 06:01:36,618 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2024-11-09 06:01:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:01:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:01:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:01:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:01:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:01:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:01:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 06:01:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:01:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:01:36,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:01:36,887 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:01:36,890 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:01:45,542 INFO L? ?]: Removed 138 outVars from TransFormulas that were not future-live. [2024-11-09 06:01:45,542 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:01:45,566 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:01:45,566 INFO L316 CfgBuilder]: Removed 58 assume(true) statements. [2024-11-09 06:01:45,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:01:45 BoogieIcfgContainer [2024-11-09 06:01:45,567 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:01:45,569 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:01:45,570 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:01:45,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:01:45,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:01:34" (1/3) ... [2024-11-09 06:01:45,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21af72c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:01:45, skipping insertion in model container [2024-11-09 06:01:45,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:36" (2/3) ... [2024-11-09 06:01:45,575 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21af72c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:01:45, skipping insertion in model container [2024-11-09 06:01:45,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:01:45" (3/3) ... [2024-11-09 06:01:45,577 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test8-1.i [2024-11-09 06:01:45,607 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:01:45,607 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 06:01:45,671 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:01:45,678 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;@4e72692f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:01:45,679 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 06:01:45,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 211 states have (on average 1.6587677725118484) internal successors, (350), 230 states have internal predecessors, (350), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 06:01:45,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 06:01:45,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:45,693 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:45,694 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:01:45,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:45,700 INFO L85 PathProgramCache]: Analyzing trace with hash 866278095, now seen corresponding path program 1 times [2024-11-09 06:01:45,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:45,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011939149] [2024-11-09 06:01:45,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:45,715 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 06:01:45,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:45,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:45,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:45,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:01:45,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:46,009 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 06:01:46,010 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:01:46,011 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:01:46,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011939149] [2024-11-09 06:01:46,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011939149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:46,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:46,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:01:46,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063802938] [2024-11-09 06:01:46,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:46,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:01:46,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:01:46,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:01:46,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:01:46,072 INFO L87 Difference]: Start difference. First operand has 240 states, 211 states have (on average 1.6587677725118484) internal successors, (350), 230 states have internal predecessors, (350), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 06:01:46,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:46,137 INFO L93 Difference]: Finished difference Result 238 states and 327 transitions. [2024-11-09 06:01:46,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:01:46,140 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-11-09 06:01:46,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:46,156 INFO L225 Difference]: With dead ends: 238 [2024-11-09 06:01:46,156 INFO L226 Difference]: Without dead ends: 236 [2024-11-09 06:01:46,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 06:01:46,166 INFO L432 NwaCegarLoop]: 327 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, 327 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 06:01:46,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:01:46,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-09 06:01:46,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2024-11-09 06:01:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 209 states have (on average 1.354066985645933) internal successors, (283), 226 states have internal predecessors, (283), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 06:01:46,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 325 transitions. [2024-11-09 06:01:46,253 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 325 transitions. Word has length 7 [2024-11-09 06:01:46,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:46,254 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 325 transitions. [2024-11-09 06:01:46,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 06:01:46,255 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 325 transitions. [2024-11-09 06:01:46,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 06:01:46,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:46,255 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:46,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:46,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:46,457 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:01:46,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:46,458 INFO L85 PathProgramCache]: Analyzing trace with hash 764118301, now seen corresponding path program 1 times [2024-11-09 06:01:46,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:46,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493454839] [2024-11-09 06:01:46,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:46,459 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 06:01:46,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:46,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:46,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:46,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:01:46,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:46,731 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:01:46,732 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:01:46,733 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:01:46,744 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 06:01:46,882 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:01:46,883 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 06:01:46,909 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 06:01:46,909 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:01:46,909 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:01:46,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493454839] [2024-11-09 06:01:46,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493454839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:46,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:46,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:01:46,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888892847] [2024-11-09 06:01:46,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:46,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:01:46,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:01:46,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:01:46,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:01:46,914 INFO L87 Difference]: Start difference. First operand 236 states and 325 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:01:51,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:01:55,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:01:55,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:55,764 INFO L93 Difference]: Finished difference Result 360 states and 491 transitions. [2024-11-09 06:01:55,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:01:55,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 06:01:55,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:55,768 INFO L225 Difference]: With dead ends: 360 [2024-11-09 06:01:55,768 INFO L226 Difference]: Without dead ends: 360 [2024-11-09 06:01:55,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 06:01:55,770 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 155 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:55,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 835 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 169 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2024-11-09 06:01:55,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-09 06:01:55,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 238. [2024-11-09 06:01:55,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 211 states have (on average 1.3507109004739337) internal successors, (285), 228 states have internal predecessors, (285), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 06:01:55,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 327 transitions. [2024-11-09 06:01:55,796 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 327 transitions. Word has length 9 [2024-11-09 06:01:55,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:55,797 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 327 transitions. [2024-11-09 06:01:55,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:01:55,797 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 327 transitions. [2024-11-09 06:01:55,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 06:01:55,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:55,800 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:01:55,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:01:56,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:56,004 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:01:56,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:56,005 INFO L85 PathProgramCache]: Analyzing trace with hash 728414997, now seen corresponding path program 1 times [2024-11-09 06:01:56,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:56,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663810021] [2024-11-09 06:01:56,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:56,007 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 06:01:56,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:56,009 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:56,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:56,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:01:56,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:56,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:01:56,533 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:01:56,534 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:01:56,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663810021] [2024-11-09 06:01:56,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663810021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:56,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:56,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:01:56,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623629992] [2024-11-09 06:01:56,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:56,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:01:56,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:01:56,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:01:56,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:01:56,540 INFO L87 Difference]: Start difference. First operand 238 states and 327 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:01:56,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:56,724 INFO L93 Difference]: Finished difference Result 240 states and 320 transitions. [2024-11-09 06:01:56,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:01:56,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-09 06:01:56,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:56,727 INFO L225 Difference]: With dead ends: 240 [2024-11-09 06:01:56,728 INFO L226 Difference]: Without dead ends: 240 [2024-11-09 06:01:56,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:01:56,729 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 30 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 860 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 06:01:56,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 860 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:01:56,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-09 06:01:56,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2024-11-09 06:01:56,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 213 states have (on average 1.3051643192488263) internal successors, (278), 230 states have internal predecessors, (278), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 06:01:56,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 320 transitions. [2024-11-09 06:01:56,747 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 320 transitions. Word has length 67 [2024-11-09 06:01:56,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:56,748 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 320 transitions. [2024-11-09 06:01:56,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:01:56,748 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 320 transitions. [2024-11-09 06:01:56,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 06:01:56,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:56,751 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:01:56,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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)] Ended with exit code 0 [2024-11-09 06:01:56,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:56,952 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:01:56,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:56,953 INFO L85 PathProgramCache]: Analyzing trace with hash -650570871, now seen corresponding path program 1 times [2024-11-09 06:01:56,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:56,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670757300] [2024-11-09 06:01:56,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:56,954 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 06:01:56,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:56,958 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:56,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:57,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:01:57,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:57,642 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 06:01:57,643 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:01:57,643 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:01:57,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670757300] [2024-11-09 06:01:57,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670757300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:57,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:57,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:01:57,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426990730] [2024-11-09 06:01:57,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:57,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:01:57,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:01:57,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:01:57,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:01:57,647 INFO L87 Difference]: Start difference. First operand 240 states and 320 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:01:57,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:57,780 INFO L93 Difference]: Finished difference Result 234 states and 310 transitions. [2024-11-09 06:01:57,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:01:57,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-09 06:01:57,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:57,783 INFO L225 Difference]: With dead ends: 234 [2024-11-09 06:01:57,783 INFO L226 Difference]: Without dead ends: 234 [2024-11-09 06:01:57,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:01:57,785 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 0 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:57,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 857 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:01:57,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-09 06:01:57,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2024-11-09 06:01:57,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 207 states have (on average 1.2946859903381642) internal successors, (268), 224 states have internal predecessors, (268), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 06:01:57,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 310 transitions. [2024-11-09 06:01:57,801 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 310 transitions. Word has length 67 [2024-11-09 06:01:57,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:57,802 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 310 transitions. [2024-11-09 06:01:57,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:01:57,802 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 310 transitions. [2024-11-09 06:01:57,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 06:01:57,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:57,804 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:01:57,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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)] Ended with exit code 0 [2024-11-09 06:01:58,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:58,009 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:01:58,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:58,009 INFO L85 PathProgramCache]: Analyzing trace with hash -256204085, now seen corresponding path program 1 times [2024-11-09 06:01:58,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:58,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580754644] [2024-11-09 06:01:58,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:58,011 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 06:01:58,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:58,015 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:58,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:01:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:58,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:01:58,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:58,934 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 06:01:58,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:01:58,935 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:01:58,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580754644] [2024-11-09 06:01:58,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580754644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:58,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:58,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:01:58,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184236768] [2024-11-09 06:01:58,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:58,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:01:58,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:01:58,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:01:58,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:01:58,938 INFO L87 Difference]: Start difference. First operand 234 states and 310 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:01:59,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:59,814 INFO L93 Difference]: Finished difference Result 344 states and 443 transitions. [2024-11-09 06:01:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:01:59,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-09 06:01:59,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:59,817 INFO L225 Difference]: With dead ends: 344 [2024-11-09 06:01:59,819 INFO L226 Difference]: Without dead ends: 344 [2024-11-09 06:01:59,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:01:59,820 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 91 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:59,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 639 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:01:59,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-09 06:01:59,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 339. [2024-11-09 06:01:59,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 311 states have (on average 1.270096463022508) internal successors, (395), 328 states have internal predecessors, (395), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-09 06:01:59,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 439 transitions. [2024-11-09 06:01:59,848 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 439 transitions. Word has length 67 [2024-11-09 06:01:59,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:59,848 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 439 transitions. [2024-11-09 06:01:59,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:01:59,849 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 439 transitions. [2024-11-09 06:01:59,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 06:01:59,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:59,852 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:59,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:02:00,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:02:00,053 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:02:00,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:02:00,053 INFO L85 PathProgramCache]: Analyzing trace with hash -292409452, now seen corresponding path program 1 times [2024-11-09 06:02:00,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:02:00,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594910793] [2024-11-09 06:02:00,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:00,055 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 06:02:00,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:02:00,058 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:02:00,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:02:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:00,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:02:00,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:00,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:02:00,726 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:02:00,726 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:02:00,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594910793] [2024-11-09 06:02:00,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594910793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:02:00,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:02:00,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:02:00,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829661104] [2024-11-09 06:02:00,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:02:00,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:02:00,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:02:00,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:02:00,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:02:00,731 INFO L87 Difference]: Start difference. First operand 339 states and 439 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:02:00,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:02:00,803 INFO L93 Difference]: Finished difference Result 342 states and 443 transitions. [2024-11-09 06:02:00,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:02:00,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 82 [2024-11-09 06:02:00,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:02:00,807 INFO L225 Difference]: With dead ends: 342 [2024-11-09 06:02:00,807 INFO L226 Difference]: Without dead ends: 342 [2024-11-09 06:02:00,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 79 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 06:02:00,808 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 0 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:02:00,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 911 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:02:00,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-09 06:02:00,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2024-11-09 06:02:00,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 313 states have (on average 1.2715654952076678) internal successors, (398), 331 states have internal predecessors, (398), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-09 06:02:00,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 443 transitions. [2024-11-09 06:02:00,824 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 443 transitions. Word has length 82 [2024-11-09 06:02:00,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:02:00,824 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 443 transitions. [2024-11-09 06:02:00,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:02:00,825 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 443 transitions. [2024-11-09 06:02:00,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:02:00,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:02:00,828 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 06:02:00,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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)] Ended with exit code 0 [2024-11-09 06:02:01,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:02:01,029 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:02:01,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:02:01,030 INFO L85 PathProgramCache]: Analyzing trace with hash 929990482, now seen corresponding path program 1 times [2024-11-09 06:02:01,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:02:01,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206406609] [2024-11-09 06:02:01,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:01,031 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 06:02:01,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:02:01,032 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:02:01,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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)] Waiting until timeout for monitored process [2024-11-09 06:02:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:01,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:02:01,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:01,769 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:02:01,769 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:02:01,920 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:02:01,921 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:02:01,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206406609] [2024-11-09 06:02:01,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206406609] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:02:01,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [130998675] [2024-11-09 06:02:01,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:01,922 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:02:01,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:02:01,925 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:02:01,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-09 06:02:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:02,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:02:02,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:03,004 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:02:03,005 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:02:03,075 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:02:03,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [130998675] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:02:03,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041292546] [2024-11-09 06:02:03,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:03,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:02:03,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:02:03,078 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:02:03,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 06:02:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:03,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:02:03,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:03,664 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:02:03,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:02:03,810 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:02:03,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041292546] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:02:03,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:02:03,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2024-11-09 06:02:03,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251389999] [2024-11-09 06:02:03,812 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:02:03,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:02:03,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:02:03,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:02:03,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:02:03,814 INFO L87 Difference]: Start difference. First operand 342 states and 443 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 06:02:04,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:02:04,266 INFO L93 Difference]: Finished difference Result 357 states and 465 transitions. [2024-11-09 06:02:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:02:04,267 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 84 [2024-11-09 06:02:04,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:02:04,270 INFO L225 Difference]: With dead ends: 357 [2024-11-09 06:02:04,270 INFO L226 Difference]: Without dead ends: 357 [2024-11-09 06:02:04,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:02:04,272 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 13 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:02:04,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1806 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:02:04,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-09 06:02:04,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 353. [2024-11-09 06:02:04,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 323 states have (on average 1.2879256965944272) internal successors, (416), 341 states have internal predecessors, (416), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-09 06:02:04,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 461 transitions. [2024-11-09 06:02:04,287 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 461 transitions. Word has length 84 [2024-11-09 06:02:04,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:02:04,288 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 461 transitions. [2024-11-09 06:02:04,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 06:02:04,288 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 461 transitions. [2024-11-09 06:02:04,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 06:02:04,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:02:04,292 INFO L215 NwaCegarLoop]: trace histogram [8, 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 06:02:04,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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)] Ended with exit code 0 [2024-11-09 06:02:04,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-09 06:02:04,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 06:02:04,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:02:04,897 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:02:04,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:02:04,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1020438676, now seen corresponding path program 2 times [2024-11-09 06:02:04,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:02:04,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782519415] [2024-11-09 06:02:04,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:02:04,898 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 06:02:04,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:02:04,900 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:02:04,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 (11)] Waiting until timeout for monitored process [2024-11-09 06:02:05,965 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:02:05,966 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:02:05,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:02:05,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:06,149 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:02:06,150 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:02:06,521 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 06:02:06,521 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:02:06,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782519415] [2024-11-09 06:02:06,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782519415] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:02:06,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [38082277] [2024-11-09 06:02:06,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:02:06,522 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:02:06,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:02:06,526 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:02:06,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-09 06:02:22,359 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:02:22,359 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:02:22,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:02:22,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:22,461 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:02:22,462 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:02:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 06:02:22,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [38082277] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:02:22,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906033732] [2024-11-09 06:02:22,609 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:02:22,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:02:22,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:02:22,612 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:02:22,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 06:10:51,568 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:10:51,568 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:10:51,618 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:10:51,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:10:51,779 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 06:10:51,780 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:10:52,352 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 06:10:52,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906033732] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:10:52,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:10:52,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 22 [2024-11-09 06:10:52,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172880893] [2024-11-09 06:10:52,353 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:10:52,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 06:10:52,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:10:52,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 06:10:52,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2024-11-09 06:10:52,357 INFO L87 Difference]: Start difference. First operand 353 states and 461 transitions. Second operand has 22 states, 22 states have (on average 4.681818181818182) internal successors, (103), 22 states have internal predecessors, (103), 2 states have call successors, (7), 2 states have call predecessors, (7), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 06:10:53,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:10:53,907 INFO L93 Difference]: Finished difference Result 373 states and 490 transitions. [2024-11-09 06:10:53,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 06:10:53,908 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.681818181818182) internal successors, (103), 22 states have internal predecessors, (103), 2 states have call successors, (7), 2 states have call predecessors, (7), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 90 [2024-11-09 06:10:53,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:10:53,910 INFO L225 Difference]: With dead ends: 373 [2024-11-09 06:10:53,910 INFO L226 Difference]: Without dead ends: 367 [2024-11-09 06:10:53,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=505, Invalid=1301, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 06:10:53,916 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 25 mSDsluCounter, 3313 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3618 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:10:53,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 3618 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:10:53,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-09 06:10:53,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 365. [2024-11-09 06:10:53,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 335 states have (on average 1.2925373134328357) internal successors, (433), 353 states have internal predecessors, (433), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-09 06:10:53,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 478 transitions. [2024-11-09 06:10:53,946 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 478 transitions. Word has length 90 [2024-11-09 06:10:53,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:10:53,946 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 478 transitions. [2024-11-09 06:10:53,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.681818181818182) internal successors, (103), 22 states have internal predecessors, (103), 2 states have call successors, (7), 2 states have call predecessors, (7), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 06:10:53,947 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 478 transitions. [2024-11-09 06:10:53,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 06:10:53,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:10:53,949 INFO L215 NwaCegarLoop]: trace histogram [20, 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 06:10:53,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 (11)] Forceful destruction successful, exit code 0 [2024-11-09 06:10:54,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-09 06:10:54,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 06:10:54,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:10:54,550 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 06:10:54,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:10:54,551 INFO L85 PathProgramCache]: Analyzing trace with hash 714343956, now seen corresponding path program 3 times [2024-11-09 06:10:54,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:10:54,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964042355] [2024-11-09 06:10:54,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:10:54,552 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 06:10:54,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:10:54,553 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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 06:10:54,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/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)] Waiting until timeout for monitored process [2024-11-09 06:10:57,993 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-09 06:10:57,993 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:10:58,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 06:10:58,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:10:58,429 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 06:10:58,429 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:10:59,495 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 06:10:59,495 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:10:59,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964042355] [2024-11-09 06:10:59,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964042355] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:10:59,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [962717729] [2024-11-09 06:10:59,496 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:10:59,496 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:10:59,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:10:59,499 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:10:59,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-09 06:11:30,773 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-09 06:11:30,773 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:11:30,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 06:11:30,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:11:30,943 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 06:11:30,943 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:11:31,311 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 06:11:31,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [962717729] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:11:31,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650215466] [2024-11-09 06:11:31,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:11:31,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:11:31,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:11:31,314 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:11:31,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f960a8-6a16-4423-b5e0-eb42dd8001d2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process