./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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_68993073-aa74-437c-9e22-04920b2f3af9/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 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:26:45,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:26:45,640 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-09 01:26:45,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:26:45,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:26:45,682 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:26:45,683 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:26:45,684 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:26:45,685 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:26:45,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:26:45,686 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:26:45,687 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:26:45,687 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:26:45,688 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:26:45,692 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:26:45,693 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:26:45,693 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:26:45,694 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:26:45,694 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:26:45,694 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:26:45,695 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:26:45,696 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:26:45,698 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 01:26:45,699 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 01:26:45,699 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:26:45,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:26:45,704 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:26:45,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:26:45,705 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:26:45,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:26:45,706 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:26:45,707 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 01:26:45,707 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 01:26:45,707 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:26:45,707 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:26:45,708 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:26:45,710 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:26:45,710 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:26:45,710 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:26:45,711 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:26:45,711 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:26:45,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:26:45,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:26:45,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:26:45,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:26:45,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:26:45,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:26:45,714 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:26:45,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:26:45,714 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:26:45,714 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:26:45,715 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:26:45,715 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_68993073-aa74-437c-9e22-04920b2f3af9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f [2024-11-09 01:26:46,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:26:46,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:26:46,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:26:46,111 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:26:46,112 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:26:46,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i Unable to find full path for "g++" [2024-11-09 01:26:48,695 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:26:49,076 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:26:49,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2024-11-09 01:26:49,116 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/data/eccfef6fc/05e5e9b80f2f4b5da9bbefdbf956f786/FLAG8cbcf4eeb [2024-11-09 01:26:49,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/data/eccfef6fc/05e5e9b80f2f4b5da9bbefdbf956f786 [2024-11-09 01:26:49,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:26:49,290 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:26:49,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:26:49,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:26:49,300 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:26:49,301 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:26:49" (1/1) ... [2024-11-09 01:26:49,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19929b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:49, skipping insertion in model container [2024-11-09 01:26:49,303 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:26:49" (1/1) ... [2024-11-09 01:26:49,397 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:26:50,255 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 01:26:50,299 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 01:26:50,303 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 01:26:50,308 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 01:26:50,321 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:26:50,404 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 01:26:50,406 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:26:50,411 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 01:26:50,411 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 01:26:50,422 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:26:50,425 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 01:26:50,430 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 01:26:50,432 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 01:26:50,443 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 01:26:50,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:26:50,472 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 01:26:50,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3bb7d0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:50, skipping insertion in model container [2024-11-09 01:26:50,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:26:50,474 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 01:26:50,477 INFO L158 Benchmark]: Toolchain (without parser) took 1186.25ms. Allocated memory is still 199.2MB. Free memory was 153.4MB in the beginning and 127.9MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 01:26:50,478 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 132.1MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:26:50,479 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1182.68ms. Allocated memory is still 199.2MB. Free memory was 153.4MB in the beginning and 127.9MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 01:26:50,480 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 132.1MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1182.68ms. Allocated memory is still 199.2MB. Free memory was 153.4MB in the beginning and 127.9MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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_68993073-aa74-437c-9e22-04920b2f3af9/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 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:26:53,108 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:26:53,215 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-09 01:26:53,220 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:26:53,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:26:53,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:26:53,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:26:53,266 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:26:53,266 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:26:53,268 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:26:53,268 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:26:53,268 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:26:53,269 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:26:53,269 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:26:53,272 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:26:53,272 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:26:53,273 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 01:26:53,273 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 01:26:53,273 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:26:53,274 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:26:53,274 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:26:53,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:26:53,279 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:26:53,279 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:26:53,279 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:26:53,280 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 01:26:53,280 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 01:26:53,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:26:53,280 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:26:53,281 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:26:53,281 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 01:26:53,281 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:26:53,281 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 01:26:53,282 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:26:53,282 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:26:53,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:26:53,283 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:26:53,283 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:26:53,284 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 01:26:53,284 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:26:53,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:26:53,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:26:53,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:26:53,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:26:53,286 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 01:26:53,286 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 01:26:53,286 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:26:53,287 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:26:53,287 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_68993073-aa74-437c-9e22-04920b2f3af9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f [2024-11-09 01:26:53,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:26:53,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:26:53,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:26:53,749 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:26:53,750 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:26:53,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i Unable to find full path for "g++" [2024-11-09 01:26:56,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:26:56,518 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:26:56,519 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2024-11-09 01:26:56,550 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/data/907c122de/e1923ca7d7c84bc780bcfad823d65aae/FLAGab4467db3 [2024-11-09 01:26:56,573 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/data/907c122de/e1923ca7d7c84bc780bcfad823d65aae [2024-11-09 01:26:56,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:26:56,578 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:26:56,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:26:56,580 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:26:56,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:26:56,588 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:26:56" (1/1) ... [2024-11-09 01:26:56,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436d41b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:56, skipping insertion in model container [2024-11-09 01:26:56,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:26:56" (1/1) ... [2024-11-09 01:26:56,699 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:26:57,726 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 01:26:57,796 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 01:26:57,802 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 01:26:57,811 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 01:26:57,832 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 01:26:57,912 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 01:26:57,913 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 01:26:57,921 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 01:26:57,922 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 01:26:57,926 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 01:26:57,929 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 01:26:57,931 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 01:26:57,932 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 01:26:57,938 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 01:26:57,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:26:57,983 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 01:26:58,004 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:26:58,040 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 01:26:58,056 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 01:26:58,059 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 01:26:58,063 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 01:26:58,069 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 01:26:58,107 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 01:26:58,112 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 01:26:58,119 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:26:58,120 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 01:26:58,129 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 01:26:58,133 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 01:26:58,135 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 01:26:58,136 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:26:58,141 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 01:26:58,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:26:58,169 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:26:58,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:26:58,383 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:26:58,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:58 WrapperNode [2024-11-09 01:26:58,384 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:26:58,385 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:26:58,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:26:58,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:26:58,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:58" (1/1) ... [2024-11-09 01:26:58,436 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:58" (1/1) ... [2024-11-09 01:26:58,538 INFO L138 Inliner]: procedures = 286, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1036 [2024-11-09 01:26:58,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:26:58,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:26:58,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:26:58,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:26:58,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:58" (1/1) ... [2024-11-09 01:26:58,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:58" (1/1) ... [2024-11-09 01:26:58,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:58" (1/1) ... [2024-11-09 01:26:58,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:58" (1/1) ... [2024-11-09 01:26:58,632 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:58" (1/1) ... [2024-11-09 01:26:58,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:58" (1/1) ... [2024-11-09 01:26:58,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:58" (1/1) ... [2024-11-09 01:26:58,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:58" (1/1) ... [2024-11-09 01:26:58,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:26:58,695 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:26:58,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:26:58,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:26:58,700 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:58" (1/1) ... [2024-11-09 01:26:58,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:26:58,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:26:58,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:26:58,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:26:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-09 01:26:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-09 01:26:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 01:26:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 01:26:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 01:26:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 01:26:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:26:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 01:26:58,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 01:26:58,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 01:26:58,798 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-09 01:26:58,798 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-09 01:26:58,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 01:26:58,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 01:26:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 01:26:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:26:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-09 01:26:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-09 01:26:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 01:26:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-09 01:26:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-09 01:26:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:26:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:26:59,103 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:26:59,106 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:27:06,805 INFO L? ?]: Removed 151 outVars from TransFormulas that were not future-live. [2024-11-09 01:27:06,806 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:27:06,825 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:27:06,825 INFO L316 CfgBuilder]: Removed 58 assume(true) statements. [2024-11-09 01:27:06,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:27:06 BoogieIcfgContainer [2024-11-09 01:27:06,826 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:27:06,829 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:27:06,829 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:27:06,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:27:06,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:26:56" (1/3) ... [2024-11-09 01:27:06,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20971f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:27:06, skipping insertion in model container [2024-11-09 01:27:06,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:58" (2/3) ... [2024-11-09 01:27:06,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20971f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:27:06, skipping insertion in model container [2024-11-09 01:27:06,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:27:06" (3/3) ... [2024-11-09 01:27:06,837 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test6-1.i [2024-11-09 01:27:06,871 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:27:06,871 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 01:27:06,947 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:27:06,958 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;@562902cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:27:06,960 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 01:27:06,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 214 states have (on average 1.5934579439252337) internal successors, (341), 219 states have internal predecessors, (341), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 01:27:06,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 01:27:06,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:06,987 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:06,988 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 01:27:06,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:06,997 INFO L85 PathProgramCache]: Analyzing trace with hash -35153347, now seen corresponding path program 1 times [2024-11-09 01:27:07,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:27:07,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938798822] [2024-11-09 01:27:07,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:07,019 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 01:27:07,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:27:07,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:07,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:07,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 01:27:07,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:07,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:07,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:07,402 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:27:07,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938798822] [2024-11-09 01:27:07,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938798822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:07,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:07,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:27:07,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572344115] [2024-11-09 01:27:07,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:07,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:27:07,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:27:07,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:27:07,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:27:07,469 INFO L87 Difference]: Start difference. First operand has 239 states, 214 states have (on average 1.5934579439252337) internal successors, (341), 219 states have internal predecessors, (341), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:07,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:07,523 INFO L93 Difference]: Finished difference Result 234 states and 304 transitions. [2024-11-09 01:27:07,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:27:07,526 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 01:27:07,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:07,536 INFO L225 Difference]: With dead ends: 234 [2024-11-09 01:27:07,536 INFO L226 Difference]: Without dead ends: 232 [2024-11-09 01:27:07,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:27:07,542 INFO L432 NwaCegarLoop]: 304 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, 304 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 01:27:07,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:27:07,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-09 01:27:07,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2024-11-09 01:27:07,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 209 states have (on average 1.3014354066985645) internal successors, (272), 214 states have internal predecessors, (272), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 01:27:07,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 302 transitions. [2024-11-09 01:27:07,622 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 302 transitions. Word has length 11 [2024-11-09 01:27:07,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:07,623 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 302 transitions. [2024-11-09 01:27:07,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:07,624 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 302 transitions. [2024-11-09 01:27:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 01:27:07,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:07,626 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:07,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:07,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:07,827 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 01:27:07,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:07,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2069103698, now seen corresponding path program 1 times [2024-11-09 01:27:07,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:27:07,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308451552] [2024-11-09 01:27:07,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:07,829 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 01:27:07,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:27:07,834 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:07,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:08,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:27:08,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:08,330 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 01:27:08,333 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:08,335 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:27:08,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308451552] [2024-11-09 01:27:08,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308451552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:08,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:08,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:27:08,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57482366] [2024-11-09 01:27:08,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:08,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:27:08,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:27:08,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:27:08,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:27:08,343 INFO L87 Difference]: Start difference. First operand 232 states and 302 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:11,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:13,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:13,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:13,789 INFO L93 Difference]: Finished difference Result 350 states and 458 transitions. [2024-11-09 01:27:13,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:27:13,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 01:27:13,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:13,794 INFO L225 Difference]: With dead ends: 350 [2024-11-09 01:27:13,794 INFO L226 Difference]: Without dead ends: 350 [2024-11-09 01:27:13,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 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 01:27:13,796 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 143 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:13,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 819 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2024-11-09 01:27:13,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-09 01:27:13,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 346. [2024-11-09 01:27:13,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 323 states have (on average 1.3095975232198143) internal successors, (423), 328 states have internal predecessors, (423), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 01:27:13,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 453 transitions. [2024-11-09 01:27:13,838 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 453 transitions. Word has length 13 [2024-11-09 01:27:13,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:13,839 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 453 transitions. [2024-11-09 01:27:13,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:13,839 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 453 transitions. [2024-11-09 01:27:13,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 01:27:13,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:13,840 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:13,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 01:27:14,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:14,044 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 01:27:14,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:14,044 INFO L85 PathProgramCache]: Analyzing trace with hash 689319725, now seen corresponding path program 1 times [2024-11-09 01:27:14,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:27:14,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018521631] [2024-11-09 01:27:14,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:14,046 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 01:27:14,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:27:14,049 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:14,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:14,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 01:27:14,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:14,368 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:27:14,369 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:27:14,370 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:27:14,386 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 01:27:14,503 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:27:14,504 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 01:27:14,533 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 01:27:14,533 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:14,534 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:27:14,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018521631] [2024-11-09 01:27:14,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018521631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:14,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:14,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:27:14,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970142104] [2024-11-09 01:27:14,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:14,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:27:14,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:27:14,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:27:14,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:27:14,541 INFO L87 Difference]: Start difference. First operand 346 states and 453 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:19,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:22,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:22,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:22,877 INFO L93 Difference]: Finished difference Result 449 states and 595 transitions. [2024-11-09 01:27:22,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:27:22,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-09 01:27:22,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:22,882 INFO L225 Difference]: With dead ends: 449 [2024-11-09 01:27:22,882 INFO L226 Difference]: Without dead ends: 449 [2024-11-09 01:27:22,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 01:27:22,884 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 164 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:22,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 759 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 180 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2024-11-09 01:27:22,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-09 01:27:22,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 345. [2024-11-09 01:27:22,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 322 states have (on average 1.3074534161490683) internal successors, (421), 327 states have internal predecessors, (421), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 01:27:22,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 451 transitions. [2024-11-09 01:27:22,909 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 451 transitions. Word has length 15 [2024-11-09 01:27:22,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:22,910 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 451 transitions. [2024-11-09 01:27:22,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:27:22,910 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 451 transitions. [2024-11-09 01:27:22,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 01:27:22,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:22,915 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] [2024-11-09 01:27:22,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:23,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:23,116 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 01:27:23,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:23,117 INFO L85 PathProgramCache]: Analyzing trace with hash -382063741, now seen corresponding path program 1 times [2024-11-09 01:27:23,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:27:23,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947492620] [2024-11-09 01:27:23,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:23,119 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 01:27:23,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:27:23,123 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:23,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:23,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:27:23,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:23,667 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 01:27:23,667 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:23,668 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:27:23,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947492620] [2024-11-09 01:27:23,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947492620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:23,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:23,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:27:23,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650548707] [2024-11-09 01:27:23,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:23,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:27:23,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:27:23,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:27:23,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:27:23,671 INFO L87 Difference]: Start difference. First operand 345 states and 451 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 01:27:23,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:23,872 INFO L93 Difference]: Finished difference Result 349 states and 437 transitions. [2024-11-09 01:27:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:27:23,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 50 [2024-11-09 01:27:23,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:23,875 INFO L225 Difference]: With dead ends: 349 [2024-11-09 01:27:23,875 INFO L226 Difference]: Without dead ends: 349 [2024-11-09 01:27:23,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 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 01:27:23,881 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 30 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 791 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 01:27:23,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 791 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:27:23,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-09 01:27:23,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-11-09 01:27:23,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 326 states have (on average 1.2484662576687116) internal successors, (407), 331 states have internal predecessors, (407), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 01:27:23,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 437 transitions. [2024-11-09 01:27:23,921 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 437 transitions. Word has length 50 [2024-11-09 01:27:23,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:23,922 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 437 transitions. [2024-11-09 01:27:23,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 01:27:23,922 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 437 transitions. [2024-11-09 01:27:23,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 01:27:23,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:23,924 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] [2024-11-09 01:27:23,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:24,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:24,129 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 01:27:24,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:24,130 INFO L85 PathProgramCache]: Analyzing trace with hash 72520311, now seen corresponding path program 1 times [2024-11-09 01:27:24,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:27:24,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611124833] [2024-11-09 01:27:24,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:24,132 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 01:27:24,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:27:24,135 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:24,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:24,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:27:24,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:24,730 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 01:27:24,731 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:24,732 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:27:24,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611124833] [2024-11-09 01:27:24,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611124833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:24,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:24,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 01:27:24,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694034663] [2024-11-09 01:27:24,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:24,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:27:24,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:27:24,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:27:24,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:27:24,735 INFO L87 Difference]: Start difference. First operand 349 states and 437 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (3), 3 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 01:27:24,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:24,922 INFO L93 Difference]: Finished difference Result 359 states and 447 transitions. [2024-11-09 01:27:24,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:27:24,923 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (3), 3 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 50 [2024-11-09 01:27:24,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:24,925 INFO L225 Difference]: With dead ends: 359 [2024-11-09 01:27:24,925 INFO L226 Difference]: Without dead ends: 359 [2024-11-09 01:27:24,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:27:24,927 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 9 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:24,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1411 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:27:24,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-09 01:27:24,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-09 01:27:24,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 333 states have (on average 1.2462462462462462) internal successors, (415), 339 states have internal predecessors, (415), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 01:27:24,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 447 transitions. [2024-11-09 01:27:24,944 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 447 transitions. Word has length 50 [2024-11-09 01:27:24,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:24,945 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 447 transitions. [2024-11-09 01:27:24,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (3), 3 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 01:27:24,945 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 447 transitions. [2024-11-09 01:27:24,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 01:27:24,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:24,948 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:24,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:25,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:25,149 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 01:27:25,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:25,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1296705038, now seen corresponding path program 1 times [2024-11-09 01:27:25,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:27:25,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320845781] [2024-11-09 01:27:25,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:25,151 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 01:27:25,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:27:25,155 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:25,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:25,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:27:25,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:26,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:26,075 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:26,076 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:27:26,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320845781] [2024-11-09 01:27:26,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320845781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:26,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:26,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:27:26,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876249877] [2024-11-09 01:27:26,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:26,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:27:26,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:27:26,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:27:26,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:27:26,083 INFO L87 Difference]: Start difference. First operand 359 states and 447 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 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 01:27:26,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:26,513 INFO L93 Difference]: Finished difference Result 367 states and 457 transitions. [2024-11-09 01:27:26,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 01:27:26,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 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 65 [2024-11-09 01:27:26,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:26,518 INFO L225 Difference]: With dead ends: 367 [2024-11-09 01:27:26,519 INFO L226 Difference]: Without dead ends: 367 [2024-11-09 01:27:26,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:27:26,520 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 20 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:26,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1022 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:27:26,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-09 01:27:26,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 363. [2024-11-09 01:27:26,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 335 states have (on average 1.2447761194029852) internal successors, (417), 342 states have internal predecessors, (417), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (16), 14 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-09 01:27:26,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 452 transitions. [2024-11-09 01:27:26,537 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 452 transitions. Word has length 65 [2024-11-09 01:27:26,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:26,537 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 452 transitions. [2024-11-09 01:27:26,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 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 01:27:26,538 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 452 transitions. [2024-11-09 01:27:26,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 01:27:26,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:26,540 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] [2024-11-09 01:27:26,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:26,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:26,742 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 01:27:26,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:26,742 INFO L85 PathProgramCache]: Analyzing trace with hash 89229888, now seen corresponding path program 1 times [2024-11-09 01:27:26,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:27:26,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181895802] [2024-11-09 01:27:26,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:26,743 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 01:27:26,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:27:26,747 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:26,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:27,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:27:27,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:27,464 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:27,466 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:27,466 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:27:27,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181895802] [2024-11-09 01:27:27,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181895802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:27,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:27,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:27:27,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329214756] [2024-11-09 01:27:27,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:27,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:27:27,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:27:27,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:27:27,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:27:27,472 INFO L87 Difference]: Start difference. First operand 363 states and 452 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 01:27:27,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:27,557 INFO L93 Difference]: Finished difference Result 367 states and 457 transitions. [2024-11-09 01:27:27,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:27:27,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 70 [2024-11-09 01:27:27,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:27,561 INFO L225 Difference]: With dead ends: 367 [2024-11-09 01:27:27,561 INFO L226 Difference]: Without dead ends: 367 [2024-11-09 01:27:27,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 67 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 01:27:27,564 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 0 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:27,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 850 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:27:27,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-09 01:27:27,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2024-11-09 01:27:27,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 338 states have (on average 1.2455621301775148) internal successors, (421), 346 states have internal predecessors, (421), 19 states have call successors, (19), 7 states have call predecessors, (19), 8 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-09 01:27:27,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 457 transitions. [2024-11-09 01:27:27,588 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 457 transitions. Word has length 70 [2024-11-09 01:27:27,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:27,589 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 457 transitions. [2024-11-09 01:27:27,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 01:27:27,589 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 457 transitions. [2024-11-09 01:27:27,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 01:27:27,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:27,591 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] [2024-11-09 01:27:27,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:27:27,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:27,792 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 01:27:27,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:27,792 INFO L85 PathProgramCache]: Analyzing trace with hash -395389959, now seen corresponding path program 1 times [2024-11-09 01:27:27,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:27:27,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138963008] [2024-11-09 01:27:27,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:27,793 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 01:27:27,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:27:27,795 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:27,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 01:27:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:28,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:27:28,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:28,442 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:28,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:27:28,672 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:27:28,672 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:27:28,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138963008] [2024-11-09 01:27:28,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138963008] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:27:28,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1794450066] [2024-11-09 01:27:28,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:28,673 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:27:28,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:27:28,677 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:27:28,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-09 01:27:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:29,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:27:29,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:29,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:27:29,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:27:30,466 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:27:30,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1794450066] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:27:30,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123544916] [2024-11-09 01:27:30,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:30,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:30,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:27:30,473 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:27:30,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 01:27:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:30,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:27:30,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:27:31,081 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:31,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123544916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:31,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-09 01:27:31,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 7, 7] total 18 [2024-11-09 01:27:31,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624410209] [2024-11-09 01:27:31,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:31,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:27:31,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:27:31,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:27:31,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-09 01:27:31,084 INFO L87 Difference]: Start difference. First operand 367 states and 457 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:27:31,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:31,489 INFO L93 Difference]: Finished difference Result 967 states and 1224 transitions. [2024-11-09 01:27:31,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:27:31,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 71 [2024-11-09 01:27:31,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:31,498 INFO L225 Difference]: With dead ends: 967 [2024-11-09 01:27:31,498 INFO L226 Difference]: Without dead ends: 967 [2024-11-09 01:27:31,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-09 01:27:31,502 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 526 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:31,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 1499 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:27:31,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2024-11-09 01:27:31,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 909. [2024-11-09 01:27:31,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 857 states have (on average 1.2625437572928822) internal successors, (1082), 868 states have internal predecessors, (1082), 33 states have call successors, (33), 13 states have call predecessors, (33), 17 states have return successors, (35), 27 states have call predecessors, (35), 29 states have call successors, (35) [2024-11-09 01:27:31,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1150 transitions. [2024-11-09 01:27:31,552 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1150 transitions. Word has length 71 [2024-11-09 01:27:31,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:31,553 INFO L471 AbstractCegarLoop]: Abstraction has 909 states and 1150 transitions. [2024-11-09 01:27:31,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:27:31,554 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1150 transitions. [2024-11-09 01:27:31,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 01:27:31,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:31,561 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:31,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 01:27:31,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-09 01:27:31,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:27:32,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:32,164 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 01:27:32,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:32,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1905851114, now seen corresponding path program 1 times [2024-11-09 01:27:32,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:27:32,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708286177] [2024-11-09 01:27:32,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:32,166 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 01:27:32,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:27:32,167 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:32,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-09 01:27:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:33,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:27:33,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:33,156 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 01:27:33,157 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:27:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 01:27:33,389 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:27:33,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708286177] [2024-11-09 01:27:33,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708286177] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:27:33,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1486234694] [2024-11-09 01:27:33,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:33,390 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:27:33,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:27:33,393 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:27:33,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-09 01:27:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:34,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:27:34,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:34,875 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 01:27:34,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:27:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 01:27:35,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1486234694] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:27:35,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578536338] [2024-11-09 01:27:35,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:35,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:35,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:27:35,897 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:27:35,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 01:27:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:36,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:27:36,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:37,092 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 01:27:37,092 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:27:37,391 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 01:27:37,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578536338] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:27:37,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 01:27:37,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 8, 10, 8, 7] total 23 [2024-11-09 01:27:37,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240364805] [2024-11-09 01:27:37,392 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 01:27:37,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 01:27:37,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:27:37,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 01:27:37,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-09 01:27:37,395 INFO L87 Difference]: Start difference. First operand 909 states and 1150 transitions. Second operand has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 20 states have internal predecessors, (247), 11 states have call successors, (24), 8 states have call predecessors, (24), 11 states have return successors, (22), 9 states have call predecessors, (22), 11 states have call successors, (22) [2024-11-09 01:27:47,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:47,122 INFO L93 Difference]: Finished difference Result 4632 states and 5943 transitions. [2024-11-09 01:27:47,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-11-09 01:27:47,123 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 20 states have internal predecessors, (247), 11 states have call successors, (24), 8 states have call predecessors, (24), 11 states have return successors, (22), 9 states have call predecessors, (22), 11 states have call successors, (22) Word has length 98 [2024-11-09 01:27:47,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:47,145 INFO L225 Difference]: With dead ends: 4632 [2024-11-09 01:27:47,145 INFO L226 Difference]: Without dead ends: 4632 [2024-11-09 01:27:47,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 588 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4106 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=2371, Invalid=8971, Unknown=0, NotChecked=0, Total=11342 [2024-11-09 01:27:47,153 INFO L432 NwaCegarLoop]: 991 mSDtfsCounter, 7486 mSDsluCounter, 11733 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7524 SdHoareTripleChecker+Valid, 12724 SdHoareTripleChecker+Invalid, 2392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 1744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:47,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7524 Valid, 12724 Invalid, 2392 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [648 Valid, 1744 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-09 01:27:47,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2024-11-09 01:27:47,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 2951. [2024-11-09 01:27:47,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2951 states, 2826 states have (on average 1.273531493276716) internal successors, (3599), 2844 states have internal predecessors, (3599), 76 states have call successors, (76), 43 states have call predecessors, (76), 47 states have return successors, (82), 63 states have call predecessors, (82), 72 states have call successors, (82) [2024-11-09 01:27:47,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2951 states to 2951 states and 3757 transitions. [2024-11-09 01:27:47,274 INFO L78 Accepts]: Start accepts. Automaton has 2951 states and 3757 transitions. Word has length 98 [2024-11-09 01:27:47,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:47,275 INFO L471 AbstractCegarLoop]: Abstraction has 2951 states and 3757 transitions. [2024-11-09 01:27:47,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 20 states have internal predecessors, (247), 11 states have call successors, (24), 8 states have call predecessors, (24), 11 states have return successors, (22), 9 states have call predecessors, (22), 11 states have call successors, (22) [2024-11-09 01:27:47,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2951 states and 3757 transitions. [2024-11-09 01:27:47,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-09 01:27:47,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:47,278 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:47,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2024-11-09 01:27:47,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-09 01:27:47,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 01:27:47,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:47,879 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 01:27:47,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:47,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1511419593, now seen corresponding path program 1 times [2024-11-09 01:27:47,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:27:47,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878208946] [2024-11-09 01:27:47,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:47,880 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 01:27:47,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:27:47,882 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:27:47,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-09 01:27:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:48,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:27:48,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:48,959 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 01:27:48,959 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:27:49,413 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 01:27:49,413 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:27:49,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878208946] [2024-11-09 01:27:49,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878208946] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:27:49,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1534069071] [2024-11-09 01:27:49,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:49,414 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:27:49,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:27:49,417 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:27:49,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-09 01:27:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:50,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:27:50,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:50,902 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 01:27:50,902 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:27:51,078 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 01:27:51,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1534069071] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:27:51,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177473625] [2024-11-09 01:27:51,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:51,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:27:51,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:27:51,082 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:27:51,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 01:27:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:51,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 01:27:51,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:27:51,866 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:27:51,867 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:27:51,867 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:27:51,872 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 01:27:52,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:27:52,010 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 01:27:52,067 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 01:27:52,067 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:27:52,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177473625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:52,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-09 01:27:52,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8, 8, 8] total 16 [2024-11-09 01:27:52,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950736308] [2024-11-09 01:27:52,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:52,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:27:52,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:27:52,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:27:52,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-09 01:27:52,070 INFO L87 Difference]: Start difference. First operand 2951 states and 3757 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 01:27:57,110 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 01:27:59,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:59,828 INFO L93 Difference]: Finished difference Result 3769 states and 4877 transitions. [2024-11-09 01:27:59,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:27:59,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 111 [2024-11-09 01:27:59,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:59,847 INFO L225 Difference]: With dead ends: 3769 [2024-11-09 01:27:59,847 INFO L226 Difference]: Without dead ends: 3769 [2024-11-09 01:27:59,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-09 01:27:59,849 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 145 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:59,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 740 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2024-11-09 01:27:59,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2024-11-09 01:27:59,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 2969. [2024-11-09 01:27:59,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2969 states, 2844 states have (on average 1.2718002812939522) internal successors, (3617), 2862 states have internal predecessors, (3617), 76 states have call successors, (76), 43 states have call predecessors, (76), 47 states have return successors, (82), 63 states have call predecessors, (82), 72 states have call successors, (82) [2024-11-09 01:27:59,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2969 states to 2969 states and 3775 transitions. [2024-11-09 01:27:59,956 INFO L78 Accepts]: Start accepts. Automaton has 2969 states and 3775 transitions. Word has length 111 [2024-11-09 01:27:59,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:59,957 INFO L471 AbstractCegarLoop]: Abstraction has 2969 states and 3775 transitions. [2024-11-09 01:27:59,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 01:27:59,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2969 states and 3775 transitions. [2024-11-09 01:27:59,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 01:27:59,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:59,960 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:59,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 01:28:00,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-11-09 01:28:00,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-09 01:28:00,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 01:28:00,561 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 01:28:00,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:28:00,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1333613920, now seen corresponding path program 1 times [2024-11-09 01:28:00,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:28:00,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032720796] [2024-11-09 01:28:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:00,563 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 01:28:00,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:28:00,564 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:28:00,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-09 01:28:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:01,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:28:01,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:28:01,601 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 01:28:01,601 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:28:02,119 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 01:28:02,119 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:28:02,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032720796] [2024-11-09 01:28:02,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032720796] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:28:02,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1902908262] [2024-11-09 01:28:02,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:02,120 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:28:02,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:28:02,123 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:28:02,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-09 01:28:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:03,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:28:03,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:28:03,933 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 01:28:03,934 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:28:04,146 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 01:28:04,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1902908262] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:28:04,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405626803] [2024-11-09 01:28:04,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:04,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:28:04,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:28:04,149 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:28:04,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 01:28:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:04,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:28:04,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:28:05,099 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 44 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 01:28:05,099 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:28:05,490 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 01:28:05,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405626803] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:28:05,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 01:28:05,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 6, 6] total 20 [2024-11-09 01:28:05,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565926189] [2024-11-09 01:28:05,491 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 01:28:05,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 01:28:05,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:28:05,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 01:28:05,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2024-11-09 01:28:05,494 INFO L87 Difference]: Start difference. First operand 2969 states and 3775 transitions. Second operand has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 01:28:07,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:28:07,324 INFO L93 Difference]: Finished difference Result 3158 states and 4027 transitions. [2024-11-09 01:28:07,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 01:28:07,325 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2024-11-09 01:28:07,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:28:07,337 INFO L225 Difference]: With dead ends: 3158 [2024-11-09 01:28:07,337 INFO L226 Difference]: Without dead ends: 3095 [2024-11-09 01:28:07,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=403, Invalid=1079, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 01:28:07,339 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 24 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:28:07,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 3087 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 01:28:07,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2024-11-09 01:28:07,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 3053. [2024-11-09 01:28:07,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 2928 states have (on average 1.2735655737704918) internal successors, (3729), 2946 states have internal predecessors, (3729), 76 states have call successors, (76), 43 states have call predecessors, (76), 47 states have return successors, (82), 63 states have call predecessors, (82), 72 states have call successors, (82) [2024-11-09 01:28:07,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 3887 transitions. [2024-11-09 01:28:07,473 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 3887 transitions. Word has length 117 [2024-11-09 01:28:07,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:28:07,474 INFO L471 AbstractCegarLoop]: Abstraction has 3053 states and 3887 transitions. [2024-11-09 01:28:07,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 01:28:07,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 3887 transitions. [2024-11-09 01:28:07,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 01:28:07,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:28:07,476 INFO L215 NwaCegarLoop]: trace histogram [18, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:28:07,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-11-09 01:28:07,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-09 01:28:07,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-09 01:28:08,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:28:08,077 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 01:28:08,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:28:08,078 INFO L85 PathProgramCache]: Analyzing trace with hash -255398240, now seen corresponding path program 2 times [2024-11-09 01:28:08,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:28:08,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366057664] [2024-11-09 01:28:08,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 01:28:08,079 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 01:28:08,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:28:08,083 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:28:08,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-09 01:28:10,003 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 01:28:10,004 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:28:10,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 01:28:10,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:28:10,579 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 128 proven. 55 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-09 01:28:10,579 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:28:11,841 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 01:28:11,841 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:28:11,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366057664] [2024-11-09 01:28:11,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366057664] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:28:11,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1452395235] [2024-11-09 01:28:11,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 01:28:11,842 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:28:11,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:28:11,843 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:28:11,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-09 01:29:49,082 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 01:29:49,083 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:29:49,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 01:29:49,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:29:49,285 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 128 proven. 55 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-09 01:29:49,285 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:29:49,617 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 01:29:49,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1452395235] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:29:49,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551627799] [2024-11-09 01:29:49,617 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 01:29:49,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:29:49,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:29:49,620 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:29:49,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 01:35:00,243 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 01:35:00,243 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:35:00,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:35:00,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:35:00,531 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 140 proven. 36 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-09 01:35:00,532 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:35:01,969 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 102 proven. 48 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-09 01:35:01,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551627799] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:35:01,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 01:35:01,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 12, 12] total 38 [2024-11-09 01:35:01,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845305205] [2024-11-09 01:35:01,970 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 01:35:01,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-09 01:35:01,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:35:01,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-09 01:35:01,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:35:01,977 INFO L87 Difference]: Start difference. First operand 3053 states and 3887 transitions. Second operand has 38 states, 38 states have (on average 3.6052631578947367) internal successors, (137), 38 states have internal predecessors, (137), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 01:35:12,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:35:12,325 INFO L93 Difference]: Finished difference Result 3326 states and 4314 transitions. [2024-11-09 01:35:12,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-09 01:35:12,327 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.6052631578947367) internal successors, (137), 38 states have internal predecessors, (137), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2024-11-09 01:35:12,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:35:12,338 INFO L225 Difference]: With dead ends: 3326 [2024-11-09 01:35:12,339 INFO L226 Difference]: Without dead ends: 3284 [2024-11-09 01:35:12,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1213 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=1675, Invalid=4805, Unknown=0, NotChecked=0, Total=6480 [2024-11-09 01:35:12,341 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 47 mSDsluCounter, 5884 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 6169 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:35:12,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 6169 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 01:35:12,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3284 states. [2024-11-09 01:35:12,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3284 to 3221. [2024-11-09 01:35:12,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3221 states, 3096 states have (on average 1.2858527131782946) internal successors, (3981), 3114 states have internal predecessors, (3981), 76 states have call successors, (76), 43 states have call predecessors, (76), 47 states have return successors, (82), 63 states have call predecessors, (82), 72 states have call successors, (82) [2024-11-09 01:35:12,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3221 states to 3221 states and 4139 transitions. [2024-11-09 01:35:12,440 INFO L78 Accepts]: Start accepts. Automaton has 3221 states and 4139 transitions. Word has length 129 [2024-11-09 01:35:12,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:35:12,440 INFO L471 AbstractCegarLoop]: Abstraction has 3221 states and 4139 transitions. [2024-11-09 01:35:12,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.6052631578947367) internal successors, (137), 38 states have internal predecessors, (137), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 01:35:12,441 INFO L276 IsEmpty]: Start isEmpty. Operand 3221 states and 4139 transitions. [2024-11-09 01:35:12,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-09 01:35:12,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:35:12,443 INFO L215 NwaCegarLoop]: trace histogram [42, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:35:12,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2024-11-09 01:35:12,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2024-11-09 01:35:12,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-09 01:35:13,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:35:13,048 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 01:35:13,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:35:13,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1041268448, now seen corresponding path program 3 times [2024-11-09 01:35:13,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:35:13,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019309153] [2024-11-09 01:35:13,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:35:13,051 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 01:35:13,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:35:13,054 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 01:35:13,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/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 (24)] Waiting until timeout for monitored process [2024-11-09 01:35:27,273 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-09 01:35:27,273 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:35:27,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 1145 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 01:35:27,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:35:28,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 548 proven. 210 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-09 01:35:28,445 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:35:32,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 486 proven. 234 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-11-09 01:35:32,788 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:35:32,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019309153] [2024-11-09 01:35:32,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019309153] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:35:32,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1719164891] [2024-11-09 01:35:32,790 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:35:32,790 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:35:32,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:35:32,791 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:35:32,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68993073-aa74-437c-9e22-04920b2f3af9/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process