./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:54:05,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:54:06,065 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-09 05:54:06,074 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:54:06,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:54:06,099 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:54:06,100 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:54:06,100 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:54:06,101 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:54:06,101 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:54:06,101 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:54:06,102 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:54:06,102 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:54:06,102 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:54:06,103 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:54:06,103 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:54:06,103 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:54:06,104 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:54:06,104 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:54:06,104 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:54:06,105 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:54:06,107 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:54:06,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:54:06,108 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:54:06,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:54:06,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:54:06,109 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:54:06,109 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:54:06,109 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:54:06,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:54:06,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:54:06,112 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:54:06,113 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:54:06,113 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:54:06,113 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:54:06,113 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:54:06,114 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:54:06,114 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:54:06,114 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:54:06,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:54:06,118 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:54:06,119 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:54:06,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:54:06,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:54:06,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:54:06,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:54:06,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:54:06,121 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:54:06,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:54:06,121 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:54:06,121 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:54:06,121 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:54:06,122 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_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-09 05:54:06,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:54:06,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:54:06,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:54:06,479 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:54:06,479 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:54:06,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i Unable to find full path for "g++" [2024-11-09 05:54:08,516 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:54:08,874 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:54:08,878 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i [2024-11-09 05:54:08,902 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/data/b165c6781/7bd77c28aa30468fb75eb5fff99ab2c3/FLAGe04797d61 [2024-11-09 05:54:09,081 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/data/b165c6781/7bd77c28aa30468fb75eb5fff99ab2c3 [2024-11-09 05:54:09,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:54:09,086 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:54:09,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:54:09,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:54:09,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:54:09,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:54:09" (1/1) ... [2024-11-09 05:54:09,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b080a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:09, skipping insertion in model container [2024-11-09 05:54:09,100 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:54:09" (1/1) ... [2024-11-09 05:54:09,181 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:54:09,717 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 05:54:09,770 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 05:54:09,778 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 05:54:09,785 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 05:54:09,800 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 05:54:09,848 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 05:54:09,848 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 05:54:09,851 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 05:54:09,852 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 05:54:09,855 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:54:09,857 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:54:09,858 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:54:09,859 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 05:54:09,864 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 05:54:09,865 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 05:54:09,872 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 05:54:09,873 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 05:54:09,874 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 05:54:09,875 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 05:54:09,883 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 05:54:09,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:54:09,909 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 05:54:09,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@627ecee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:09, skipping insertion in model container [2024-11-09 05:54:09,910 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:54:09,910 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 05:54:09,912 INFO L158 Benchmark]: Toolchain (without parser) took 826.11ms. Allocated memory is still 165.7MB. Free memory was 133.3MB in the beginning and 115.6MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 05:54:09,913 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:54:09,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 822.50ms. Allocated memory is still 165.7MB. Free memory was 132.5MB in the beginning and 115.6MB in the end (delta: 16.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 05:54:09,915 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 822.50ms. Allocated memory is still 165.7MB. Free memory was 132.5MB in the beginning and 115.6MB in the end (delta: 16.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:54:12,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:54:12,255 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-09 05:54:12,264 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:54:12,264 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:54:12,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:54:12,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:54:12,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:54:12,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:54:12,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:54:12,311 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:54:12,311 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:54:12,311 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:54:12,312 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:54:12,312 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:54:12,312 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:54:12,313 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:54:12,313 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:54:12,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:54:12,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:54:12,317 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:54:12,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:54:12,318 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:54:12,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:54:12,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:54:12,319 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:54:12,319 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:54:12,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:54:12,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:54:12,320 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:54:12,320 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:54:12,321 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:54:12,321 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:54:12,321 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:54:12,322 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:54:12,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:54:12,322 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:54:12,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:54:12,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:54:12,323 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:54:12,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:54:12,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:54:12,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:54:12,334 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:54:12,334 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:54:12,334 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:54:12,334 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:54:12,335 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:54:12,335 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_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-09 05:54:12,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:54:12,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:54:12,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:54:12,822 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:54:12,823 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:54:12,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i Unable to find full path for "g++" [2024-11-09 05:54:14,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:54:15,146 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:54:15,147 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i [2024-11-09 05:54:15,169 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/data/7b340152d/1c9cdb9ebaff44dbb39bea9ee3a27cad/FLAG8bb20fae9 [2024-11-09 05:54:15,392 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/data/7b340152d/1c9cdb9ebaff44dbb39bea9ee3a27cad [2024-11-09 05:54:15,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:54:15,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:54:15,398 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:54:15,399 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:54:15,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:54:15,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:54:15" (1/1) ... [2024-11-09 05:54:15,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25116850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:15, skipping insertion in model container [2024-11-09 05:54:15,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:54:15" (1/1) ... [2024-11-09 05:54:15,504 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:54:16,113 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 05:54:16,162 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 05:54:16,167 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 05:54:16,171 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 05:54:16,182 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 05:54:16,243 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 05:54:16,247 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 05:54:16,250 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 05:54:16,250 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 05:54:16,256 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 05:54:16,261 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 05:54:16,265 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 05:54:16,266 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 05:54:16,274 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 05:54:16,279 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 05:54:16,282 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 05:54:16,283 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 05:54:16,285 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 05:54:16,286 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 05:54:16,290 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 05:54:16,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:54:16,310 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 05:54:16,359 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:54:16,408 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 05:54:16,434 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 05:54:16,437 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 05:54:16,439 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 05:54:16,444 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 05:54:16,464 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 05:54:16,464 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 05:54:16,467 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 05:54:16,467 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 05:54:16,470 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 05:54:16,471 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 05:54:16,472 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 05:54:16,473 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 05:54:16,476 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 05:54:16,477 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 05:54:16,479 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 05:54:16,480 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 05:54:16,481 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 05:54:16,482 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 05:54:16,485 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 05:54:16,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:54:16,491 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:54:16,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:54:16,663 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:54:16,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:16 WrapperNode [2024-11-09 05:54:16,665 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:54:16,666 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:54:16,666 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:54:16,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:54:16,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:16" (1/1) ... [2024-11-09 05:54:16,719 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:16" (1/1) ... [2024-11-09 05:54:16,819 INFO L138 Inliner]: procedures = 180, calls = 325, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1149 [2024-11-09 05:54:16,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:54:16,822 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:54:16,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:54:16,822 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:54:16,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:16" (1/1) ... [2024-11-09 05:54:16,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:16" (1/1) ... [2024-11-09 05:54:16,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:16" (1/1) ... [2024-11-09 05:54:16,847 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:16" (1/1) ... [2024-11-09 05:54:16,891 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:16" (1/1) ... [2024-11-09 05:54:16,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:16" (1/1) ... [2024-11-09 05:54:16,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:16" (1/1) ... [2024-11-09 05:54:16,909 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:16" (1/1) ... [2024-11-09 05:54:16,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:54:16,918 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:54:16,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:54:16,919 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:54:16,919 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:16" (1/1) ... [2024-11-09 05:54:16,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:54:16,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:54:16,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:54:16,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:54:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 05:54:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 05:54:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:54:17,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:54:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:54:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:54:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:54:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:54:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:54:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:54:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:54:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 05:54:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:54:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:54:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:54:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:54:17,340 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:54:17,343 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:54:24,425 INFO L? ?]: Removed 143 outVars from TransFormulas that were not future-live. [2024-11-09 05:54:24,426 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:54:24,442 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:54:24,442 INFO L316 CfgBuilder]: Removed 66 assume(true) statements. [2024-11-09 05:54:24,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:54:24 BoogieIcfgContainer [2024-11-09 05:54:24,443 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:54:24,445 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:54:24,445 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:54:24,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:54:24,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:54:15" (1/3) ... [2024-11-09 05:54:24,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3215d4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:54:24, skipping insertion in model container [2024-11-09 05:54:24,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:54:16" (2/3) ... [2024-11-09 05:54:24,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3215d4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:54:24, skipping insertion in model container [2024-11-09 05:54:24,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:54:24" (3/3) ... [2024-11-09 05:54:24,451 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test3-2.i [2024-11-09 05:54:24,469 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:54:24,469 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 05:54:24,517 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:54:24,525 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;@4e72e59b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:54:24,526 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 05:54:24,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 237 states, 227 states have (on average 1.6475770925110131) internal successors, (374), 230 states have internal predecessors, (374), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:54:24,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 05:54:24,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:24,543 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 05:54:24,543 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:54:24,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:24,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1172753, now seen corresponding path program 1 times [2024-11-09 05:54:24,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:54:24,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503274807] [2024-11-09 05:54:24,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:24,564 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 05:54:24,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:54:24,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:24,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:24,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:54:24,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:24,867 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_16| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16|)))) is different from true [2024-11-09 05:54:24,869 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 05:54:24,869 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:54:24,870 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:54:24,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503274807] [2024-11-09 05:54:24,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503274807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:54:24,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:54:24,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:54:24,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508366778] [2024-11-09 05:54:24,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:54:24,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:54:24,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:54:24,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:54:24,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-09 05:54:24,911 INFO L87 Difference]: Start difference. First operand has 237 states, 227 states have (on average 1.6475770925110131) internal successors, (374), 230 states have internal predecessors, (374), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:54:27,423 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 05:54:28,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:28,398 INFO L93 Difference]: Finished difference Result 363 states and 485 transitions. [2024-11-09 05:54:28,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:54:28,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 05:54:28,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:28,439 INFO L225 Difference]: With dead ends: 363 [2024-11-09 05:54:28,439 INFO L226 Difference]: Without dead ends: 360 [2024-11-09 05:54:28,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-09 05:54:28,452 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 164 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 486 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:28,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 591 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 1 Unknown, 486 Unchecked, 3.4s Time] [2024-11-09 05:54:28,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-09 05:54:28,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 234. [2024-11-09 05:54:28,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 225 states have (on average 1.3244444444444445) internal successors, (298), 227 states have internal predecessors, (298), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:54:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 308 transitions. [2024-11-09 05:54:28,553 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 308 transitions. Word has length 4 [2024-11-09 05:54:28,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:28,553 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 308 transitions. [2024-11-09 05:54:28,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:54:28,554 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 308 transitions. [2024-11-09 05:54:28,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 05:54:28,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:28,559 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:28,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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)] Forceful destruction successful, exit code 0 [2024-11-09 05:54:28,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:28,762 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:54:28,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:28,763 INFO L85 PathProgramCache]: Analyzing trace with hash 976075094, now seen corresponding path program 1 times [2024-11-09 05:54:28,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:54:28,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952403795] [2024-11-09 05:54:28,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:28,766 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 05:54:28,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:54:28,774 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:28,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:29,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:54:29,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:29,195 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 05:54:29,196 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:54:29,196 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:54:29,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952403795] [2024-11-09 05:54:29,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952403795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:54:29,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:54:29,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:54:29,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930756253] [2024-11-09 05:54:29,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:54:29,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:54:29,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:54:29,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:54:29,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:54:29,201 INFO L87 Difference]: Start difference. First operand 234 states and 308 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 05:54:32,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:54:36,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:54:36,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:36,424 INFO L93 Difference]: Finished difference Result 383 states and 505 transitions. [2024-11-09 05:54:36,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:54:36,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 16 [2024-11-09 05:54:36,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:36,429 INFO L225 Difference]: With dead ends: 383 [2024-11-09 05:54:36,429 INFO L226 Difference]: Without dead ends: 383 [2024-11-09 05:54:36,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 05:54:36,433 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 187 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:36,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 863 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 118 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2024-11-09 05:54:36,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-09 05:54:36,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 351. [2024-11-09 05:54:36,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 341 states have (on average 1.3225806451612903) internal successors, (451), 344 states have internal predecessors, (451), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:54:36,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 463 transitions. [2024-11-09 05:54:36,477 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 463 transitions. Word has length 16 [2024-11-09 05:54:36,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:36,477 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 463 transitions. [2024-11-09 05:54:36,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 05:54:36,478 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 463 transitions. [2024-11-09 05:54:36,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 05:54:36,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:36,479 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:36,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:36,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:36,680 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:54:36,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:36,680 INFO L85 PathProgramCache]: Analyzing trace with hash 404199381, now seen corresponding path program 1 times [2024-11-09 05:54:36,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:54:36,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66718085] [2024-11-09 05:54:36,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:36,681 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 05:54:36,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:54:36,684 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:36,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:36,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:54:36,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:37,119 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_17| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17|)))) is different from true [2024-11-09 05:54:37,120 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 05:54:37,120 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:54:37,120 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:54:37,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66718085] [2024-11-09 05:54:37,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66718085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:54:37,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:54:37,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:54:37,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805659525] [2024-11-09 05:54:37,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:54:37,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:54:37,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:54:37,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:54:37,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-09 05:54:37,122 INFO L87 Difference]: Start difference. First operand 351 states and 463 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:54:39,308 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 05:54:39,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:39,617 INFO L93 Difference]: Finished difference Result 445 states and 584 transitions. [2024-11-09 05:54:39,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:54:39,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-09 05:54:39,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:39,627 INFO L225 Difference]: With dead ends: 445 [2024-11-09 05:54:39,627 INFO L226 Difference]: Without dead ends: 437 [2024-11-09 05:54:39,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-09 05:54:39,628 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 88 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 412 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:39,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 587 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 412 Unchecked, 2.5s Time] [2024-11-09 05:54:39,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-09 05:54:39,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 397. [2024-11-09 05:54:39,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 386 states have (on average 1.3212435233160622) internal successors, (510), 389 states have internal predecessors, (510), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:54:39,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 524 transitions. [2024-11-09 05:54:39,645 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 524 transitions. Word has length 16 [2024-11-09 05:54:39,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:39,645 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 524 transitions. [2024-11-09 05:54:39,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:54:39,646 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 524 transitions. [2024-11-09 05:54:39,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 05:54:39,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:39,647 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:39,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:39,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:39,848 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:54:39,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:39,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1347631372, now seen corresponding path program 1 times [2024-11-09 05:54:39,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:54:39,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715252372] [2024-11-09 05:54:39,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:39,850 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 05:54:39,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:54:39,851 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:39,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:40,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:54:40,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:40,118 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 05:54:40,119 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:54:40,119 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:54:40,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715252372] [2024-11-09 05:54:40,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715252372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:54:40,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:54:40,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:54:40,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632778794] [2024-11-09 05:54:40,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:54:40,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:54:40,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:54:40,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:54:40,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:54:40,122 INFO L87 Difference]: Start difference. First operand 397 states and 524 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 05:54:40,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:40,308 INFO L93 Difference]: Finished difference Result 403 states and 503 transitions. [2024-11-09 05:54:40,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:54:40,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 51 [2024-11-09 05:54:40,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:40,310 INFO L225 Difference]: With dead ends: 403 [2024-11-09 05:54:40,310 INFO L226 Difference]: Without dead ends: 403 [2024-11-09 05:54:40,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 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 05:54:40,311 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 30 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 809 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 05:54:40,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 809 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:54:40,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-09 05:54:40,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-09 05:54:40,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 392 states have (on average 1.2474489795918366) internal successors, (489), 395 states have internal predecessors, (489), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:54:40,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 503 transitions. [2024-11-09 05:54:40,325 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 503 transitions. Word has length 51 [2024-11-09 05:54:40,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:40,326 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 503 transitions. [2024-11-09 05:54:40,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 05:54:40,326 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 503 transitions. [2024-11-09 05:54:40,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 05:54:40,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:40,328 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:40,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-09 05:54:40,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:40,529 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:54:40,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:40,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1550088064, now seen corresponding path program 1 times [2024-11-09 05:54:40,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:54:40,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664700278] [2024-11-09 05:54:40,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:40,530 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 05:54:40,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:54:40,532 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:40,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:40,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 05:54:40,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:40,791 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:54:40,792 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:54:40,793 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:54:40,801 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 05:54:40,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:54:40,923 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 05:54:40,993 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 05:54:40,993 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:54:40,993 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:54:40,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664700278] [2024-11-09 05:54:40,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664700278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:54:40,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:54:40,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:54:40,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739928898] [2024-11-09 05:54:40,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:54:40,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:54:40,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:54:40,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:54:40,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:54:40,996 INFO L87 Difference]: Start difference. First operand 403 states and 503 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 05:54:45,461 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 05:54:48,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:48,482 INFO L93 Difference]: Finished difference Result 357 states and 450 transitions. [2024-11-09 05:54:48,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:54:48,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 51 [2024-11-09 05:54:48,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:48,485 INFO L225 Difference]: With dead ends: 357 [2024-11-09 05:54:48,485 INFO L226 Difference]: Without dead ends: 354 [2024-11-09 05:54:48,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:54:48,486 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 54 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:48,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1034 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2024-11-09 05:54:48,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-09 05:54:48,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2024-11-09 05:54:48,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 344 states have (on average 1.2645348837209303) internal successors, (435), 347 states have internal predecessors, (435), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:54:48,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 447 transitions. [2024-11-09 05:54:48,506 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 447 transitions. Word has length 51 [2024-11-09 05:54:48,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:48,506 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 447 transitions. [2024-11-09 05:54:48,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 05:54:48,506 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 447 transitions. [2024-11-09 05:54:48,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 05:54:48,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:48,509 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:48,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-09 05:54:48,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:48,710 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:54:48,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:48,710 INFO L85 PathProgramCache]: Analyzing trace with hash 334973826, now seen corresponding path program 1 times [2024-11-09 05:54:48,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:54:48,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527125431] [2024-11-09 05:54:48,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:48,712 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 05:54:48,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:54:48,716 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:48,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:49,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:54:49,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:49,291 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:54:49,292 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:54:49,292 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:54:49,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527125431] [2024-11-09 05:54:49,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527125431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:54:49,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:54:49,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:54:49,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923244641] [2024-11-09 05:54:49,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:54:49,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:54:49,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:54:49,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:54:49,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:54:49,294 INFO L87 Difference]: Start difference. First operand 354 states and 447 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:54:49,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:49,429 INFO L93 Difference]: Finished difference Result 358 states and 433 transitions. [2024-11-09 05:54:49,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:54:49,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2024-11-09 05:54:49,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:49,431 INFO L225 Difference]: With dead ends: 358 [2024-11-09 05:54:49,431 INFO L226 Difference]: Without dead ends: 358 [2024-11-09 05:54:49,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 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 05:54:49,433 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 33 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:49,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 767 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:54:49,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-09 05:54:49,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2024-11-09 05:54:49,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 348 states have (on average 1.2097701149425288) internal successors, (421), 351 states have internal predecessors, (421), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:54:49,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 433 transitions. [2024-11-09 05:54:49,450 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 433 transitions. Word has length 87 [2024-11-09 05:54:49,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:49,450 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 433 transitions. [2024-11-09 05:54:49,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:54:49,450 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 433 transitions. [2024-11-09 05:54:49,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 05:54:49,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:49,452 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:49,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:49,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:49,653 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:54:49,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:49,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1973968620, now seen corresponding path program 1 times [2024-11-09 05:54:49,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:54:49,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447613562] [2024-11-09 05:54:49,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:49,655 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 05:54:49,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:54:49,658 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:49,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:50,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:54:50,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:54:50,314 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:54:50,314 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:54:50,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447613562] [2024-11-09 05:54:50,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1447613562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:54:50,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:54:50,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:54:50,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929564270] [2024-11-09 05:54:50,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:54:50,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:54:50,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:54:50,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:54:50,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:54:50,318 INFO L87 Difference]: Start difference. First operand 358 states and 433 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:54:50,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:50,421 INFO L93 Difference]: Finished difference Result 346 states and 413 transitions. [2024-11-09 05:54:50,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:54:50,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2024-11-09 05:54:50,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:50,423 INFO L225 Difference]: With dead ends: 346 [2024-11-09 05:54:50,423 INFO L226 Difference]: Without dead ends: 346 [2024-11-09 05:54:50,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:54:50,424 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 6 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:50,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 767 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:54:50,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-09 05:54:50,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2024-11-09 05:54:50,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 336 states have (on average 1.193452380952381) internal successors, (401), 339 states have internal predecessors, (401), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:54:50,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 413 transitions. [2024-11-09 05:54:50,440 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 413 transitions. Word has length 87 [2024-11-09 05:54:50,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:50,440 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 413 transitions. [2024-11-09 05:54:50,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:54:50,440 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 413 transitions. [2024-11-09 05:54:50,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 05:54:50,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:50,442 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:50,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:50,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:50,643 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:54:50,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:50,643 INFO L85 PathProgramCache]: Analyzing trace with hash -887403762, now seen corresponding path program 1 times [2024-11-09 05:54:50,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:54:50,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408197095] [2024-11-09 05:54:50,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:50,644 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 05:54:50,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:54:50,647 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:50,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:51,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:54:51,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:51,351 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:54:51,354 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:54:51,354 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:54:51,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408197095] [2024-11-09 05:54:51,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408197095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:54:51,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:54:51,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:54:51,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753487526] [2024-11-09 05:54:51,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:54:51,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:54:51,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:54:51,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:54:51,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:54:51,356 INFO L87 Difference]: Start difference. First operand 346 states and 413 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:54:51,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:51,412 INFO L93 Difference]: Finished difference Result 349 states and 417 transitions. [2024-11-09 05:54:51,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:54:51,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 87 [2024-11-09 05:54:51,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:51,415 INFO L225 Difference]: With dead ends: 349 [2024-11-09 05:54:51,416 INFO L226 Difference]: Without dead ends: 349 [2024-11-09 05:54:51,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 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 05:54:51,417 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 0 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:51,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 821 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:54:51,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-09 05:54:51,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-11-09 05:54:51,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 338 states have (on average 1.1952662721893492) internal successors, (404), 342 states have internal predecessors, (404), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 05:54:51,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 417 transitions. [2024-11-09 05:54:51,426 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 417 transitions. Word has length 87 [2024-11-09 05:54:51,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:51,427 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 417 transitions. [2024-11-09 05:54:51,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:54:51,427 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 417 transitions. [2024-11-09 05:54:51,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 05:54:51,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:51,428 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:51,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-09 05:54:51,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:51,629 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:54:51,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:51,630 INFO L85 PathProgramCache]: Analyzing trace with hash 785034796, now seen corresponding path program 1 times [2024-11-09 05:54:51,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:54:51,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217726069] [2024-11-09 05:54:51,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:51,630 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 05:54:51,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:54:51,631 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:51,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-09 05:54:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:52,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:54:52,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:54:52,305 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:54:52,455 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:54:52,455 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:54:52,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217726069] [2024-11-09 05:54:52,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217726069] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:54:52,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [404298251] [2024-11-09 05:54:52,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:52,456 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:54:52,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:54:52,459 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:54:52,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-09 05:54:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:53,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:54:53,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:53,502 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:54:53,502 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:54:53,589 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:54:53,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [404298251] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:54:53,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391894775] [2024-11-09 05:54:53,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:54:53,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:54:53,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:54:53,594 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:54:53,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 05:54:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:54:54,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:54:54,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:54,257 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:54:54,257 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:54:54,395 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:54:54,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391894775] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:54:54,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:54:54,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2024-11-09 05:54:54,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5965874] [2024-11-09 05:54:54,397 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:54:54,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:54:54,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:54:54,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:54:54,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:54:54,399 INFO L87 Difference]: Start difference. First operand 349 states and 417 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:54:54,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:54:54,985 INFO L93 Difference]: Finished difference Result 364 states and 439 transitions. [2024-11-09 05:54:54,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:54:54,986 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2024-11-09 05:54:54,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:54:54,988 INFO L225 Difference]: With dead ends: 364 [2024-11-09 05:54:54,989 INFO L226 Difference]: Without dead ends: 364 [2024-11-09 05:54:54,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:54:54,990 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 12 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:54:54,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1894 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:54:54,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-09 05:54:55,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 360. [2024-11-09 05:54:55,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 348 states have (on average 1.2126436781609196) internal successors, (422), 352 states have internal predecessors, (422), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 05:54:55,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 435 transitions. [2024-11-09 05:54:55,006 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 435 transitions. Word has length 89 [2024-11-09 05:54:55,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:54:55,007 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 435 transitions. [2024-11-09 05:54:55,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:54:55,008 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 435 transitions. [2024-11-09 05:54:55,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 05:54:55,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:54:55,010 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:54:55,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-09 05:54:55,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 05:54:55,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-09 05:54:55,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:54:55,611 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:54:55,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:54:55,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1615044238, now seen corresponding path program 2 times [2024-11-09 05:54:55,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:54:55,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921010197] [2024-11-09 05:54:55,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:54:55,613 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 05:54:55,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:54:55,616 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:54:55,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 (13)] Waiting until timeout for monitored process [2024-11-09 05:54:56,261 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:54:56,261 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:54:56,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:54:56,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:56,425 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:54:56,425 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:54:56,838 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:54:56,838 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:54:56,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921010197] [2024-11-09 05:54:56,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921010197] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:54:56,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1602166103] [2024-11-09 05:54:56,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:54:56,839 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:54:56,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:54:56,840 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:54:56,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-09 05:54:57,920 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:54:57,920 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:54:57,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:54:57,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:57,979 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:54:57,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:54:58,113 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:54:58,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1602166103] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:54:58,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103617289] [2024-11-09 05:54:58,114 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:54:58,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:54:58,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:54:58,116 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:54:58,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 05:54:58,870 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:54:58,870 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:54:58,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:54:58,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:59,664 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:54:59,664 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:54:59,665 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:54:59,668 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 05:54:59,814 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:54:59,814 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 05:54:59,900 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 05:54:59,901 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:54:59,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103617289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:54:59,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-09 05:54:59,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 8, 8] total 18 [2024-11-09 05:54:59,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334049497] [2024-11-09 05:54:59,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:54:59,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:54:59,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:54:59,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:54:59,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-11-09 05:54:59,918 INFO L87 Difference]: Start difference. First operand 360 states and 435 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:55:02,288 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 05:55:05,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:55:05,570 INFO L93 Difference]: Finished difference Result 454 states and 554 transitions. [2024-11-09 05:55:05,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:55:05,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 95 [2024-11-09 05:55:05,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:55:05,573 INFO L225 Difference]: With dead ends: 454 [2024-11-09 05:55:05,573 INFO L226 Difference]: Without dead ends: 454 [2024-11-09 05:55:05,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:55:05,574 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 372 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:55:05,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 731 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2024-11-09 05:55:05,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-09 05:55:05,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 362. [2024-11-09 05:55:05,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 350 states have (on average 1.2114285714285715) internal successors, (424), 354 states have internal predecessors, (424), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 05:55:05,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 437 transitions. [2024-11-09 05:55:05,586 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 437 transitions. Word has length 95 [2024-11-09 05:55:05,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:55:05,587 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 437 transitions. [2024-11-09 05:55:05,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:55:05,587 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 437 transitions. [2024-11-09 05:55:05,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 05:55:05,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:55:05,589 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:55:05,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 05:55:05,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2024-11-09 05:55:05,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 (13)] Forceful destruction successful, exit code 0 [2024-11-09 05:55:06,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:55:06,190 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:55:06,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:55:06,190 INFO L85 PathProgramCache]: Analyzing trace with hash 292603720, now seen corresponding path program 1 times [2024-11-09 05:55:06,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:55:06,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324691727] [2024-11-09 05:55:06,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:55:06,191 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 05:55:06,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:55:06,192 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:55:06,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-09 05:55:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:55:06,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:55:06,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:55:07,056 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:55:07,056 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:55:07,392 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:55:07,393 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:55:07,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324691727] [2024-11-09 05:55:07,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324691727] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:55:07,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2142656099] [2024-11-09 05:55:07,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:55:07,393 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:55:07,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:55:07,396 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:55:07,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-09 05:55:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:55:08,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:55:08,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:55:08,876 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 05:55:08,877 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:55:08,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2142656099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:55:08,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:55:08,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 16 [2024-11-09 05:55:08,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169733023] [2024-11-09 05:55:08,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:55:08,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:55:08,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:55:08,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:55:08,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:55:08,879 INFO L87 Difference]: Start difference. First operand 362 states and 437 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:55:11,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:13,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:15,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:55:17,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:55:17,126 INFO L93 Difference]: Finished difference Result 535 states and 657 transitions. [2024-11-09 05:55:17,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:55:17,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 130 [2024-11-09 05:55:17,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:55:17,133 INFO L225 Difference]: With dead ends: 535 [2024-11-09 05:55:17,133 INFO L226 Difference]: Without dead ends: 535 [2024-11-09 05:55:17,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:55:17,135 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 534 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:55:17,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 587 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 143 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2024-11-09 05:55:17,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-09 05:55:17,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 462. [2024-11-09 05:55:17,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 448 states have (on average 1.2142857142857142) internal successors, (544), 453 states have internal predecessors, (544), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 05:55:17,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 561 transitions. [2024-11-09 05:55:17,156 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 561 transitions. Word has length 130 [2024-11-09 05:55:17,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:55:17,157 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 561 transitions. [2024-11-09 05:55:17,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:55:17,157 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 561 transitions. [2024-11-09 05:55:17,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-09 05:55:17,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:55:17,160 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:55:17,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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)] Ended with exit code 0 [2024-11-09 05:55:17,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-09 05:55:17,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:55:17,565 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:55:17,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:55:17,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1512439863, now seen corresponding path program 1 times [2024-11-09 05:55:17,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:55:17,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637522290] [2024-11-09 05:55:17,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:55:17,567 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 05:55:17,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:55:17,570 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:55:17,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:55:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:55:18,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:55:18,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:55:18,492 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:55:18,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:55:18,940 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:55:18,940 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:55:18,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637522290] [2024-11-09 05:55:18,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637522290] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:55:18,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2122725483] [2024-11-09 05:55:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:55:18,941 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:55:18,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:55:18,945 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:55:18,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-09 05:55:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:55:20,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:55:20,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:55:20,419 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:55:20,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:55:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:55:20,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2122725483] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:55:20,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176961781] [2024-11-09 05:55:20,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:55:20,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:55:20,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:55:20,560 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:55:20,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 05:55:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:55:21,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:55:21,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:55:21,424 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:55:21,425 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:55:21,835 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:55:21,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176961781] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:55:21,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:55:21,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 20 [2024-11-09 05:55:21,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504873591] [2024-11-09 05:55:21,836 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:55:21,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 05:55:21,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:55:21,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 05:55:21,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:55:21,839 INFO L87 Difference]: Start difference. First operand 462 states and 561 transitions. Second operand has 20 states, 20 states have (on average 7.45) internal successors, (149), 20 states have internal predecessors, (149), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:55:22,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:55:22,727 INFO L93 Difference]: Finished difference Result 475 states and 578 transitions. [2024-11-09 05:55:22,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 05:55:22,728 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.45) internal successors, (149), 20 states have internal predecessors, (149), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 138 [2024-11-09 05:55:22,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:55:22,731 INFO L225 Difference]: With dead ends: 475 [2024-11-09 05:55:22,731 INFO L226 Difference]: Without dead ends: 469 [2024-11-09 05:55:22,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 831 GetRequests, 804 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=292, Invalid=520, Unknown=0, NotChecked=0, Total=812 [2024-11-09 05:55:22,733 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 7 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:55:22,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1920 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:55:22,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-09 05:55:22,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2024-11-09 05:55:22,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 455 states have (on average 1.210989010989011) internal successors, (551), 460 states have internal predecessors, (551), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 05:55:22,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 568 transitions. [2024-11-09 05:55:22,748 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 568 transitions. Word has length 138 [2024-11-09 05:55:22,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:55:22,748 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 568 transitions. [2024-11-09 05:55:22,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.45) internal successors, (149), 20 states have internal predecessors, (149), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:55:22,749 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 568 transitions. [2024-11-09 05:55:22,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-09 05:55:22,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:55:22,751 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:55:22,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-09 05:55:22,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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)] Forceful destruction successful, exit code 0 [2024-11-09 05:55:23,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-09 05:55:23,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:55:23,352 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:55:23,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:55:23,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1555278221, now seen corresponding path program 2 times [2024-11-09 05:55:23,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:55:23,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016751012] [2024-11-09 05:55:23,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:55:23,354 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 05:55:23,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:55:23,355 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:55:23,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:55:24,210 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:55:24,210 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:55:24,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:55:24,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:55:24,610 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 05:55:24,610 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:55:25,720 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:55:25,720 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:55:25,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016751012] [2024-11-09 05:55:25,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016751012] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:55:25,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1647434195] [2024-11-09 05:55:25,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:55:25,721 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:55:25,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:55:25,722 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:55:25,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-09 05:55:28,250 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:55:28,250 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:55:28,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:55:28,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:55:28,358 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 05:55:28,358 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:55:28,582 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:55:28,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1647434195] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:55:28,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628077911] [2024-11-09 05:55:28,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:55:28,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:55:28,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:55:28,585 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:55:28,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 05:55:29,446 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:55:29,447 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:55:29,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:55:29,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:55:29,622 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 05:55:29,622 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:55:30,373 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 05:55:30,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628077911] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:55:30,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:55:30,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 9, 9] total 35 [2024-11-09 05:55:30,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845423047] [2024-11-09 05:55:30,375 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:55:30,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-09 05:55:30,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:55:30,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-09 05:55:30,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=862, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 05:55:30,377 INFO L87 Difference]: Start difference. First operand 469 states and 568 transitions. Second operand has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 35 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:55:34,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:55:34,770 INFO L93 Difference]: Finished difference Result 503 states and 623 transitions. [2024-11-09 05:55:34,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-09 05:55:34,771 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 35 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 145 [2024-11-09 05:55:34,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:55:34,773 INFO L225 Difference]: With dead ends: 503 [2024-11-09 05:55:34,774 INFO L226 Difference]: Without dead ends: 497 [2024-11-09 05:55:34,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 904 GetRequests, 831 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1393, Invalid=4157, Unknown=0, NotChecked=0, Total=5550 [2024-11-09 05:55:34,777 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 43 mSDsluCounter, 4602 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 4877 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:55:34,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 4877 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 05:55:34,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-09 05:55:34,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 493. [2024-11-09 05:55:34,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 479 states have (on average 1.2233820459290188) internal successors, (586), 484 states have internal predecessors, (586), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 05:55:34,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 603 transitions. [2024-11-09 05:55:34,793 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 603 transitions. Word has length 145 [2024-11-09 05:55:34,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:55:34,794 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 603 transitions. [2024-11-09 05:55:34,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 35 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:55:34,794 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 603 transitions. [2024-11-09 05:55:34,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 05:55:34,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:55:34,798 INFO L215 NwaCegarLoop]: trace histogram [39, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:55:34,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-09 05:55:35,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:55:35,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2024-11-09 05:55:35,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:55:35,399 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:55:35,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:55:35,399 INFO L85 PathProgramCache]: Analyzing trace with hash -716566285, now seen corresponding path program 3 times [2024-11-09 05:55:35,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:55:35,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267516507] [2024-11-09 05:55:35,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:55:35,401 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 05:55:35,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:55:35,402 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:55:35,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/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 05:55:41,672 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-09 05:55:41,673 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:55:41,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 05:55:41,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:55:42,722 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-09 05:55:42,722 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:55:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-09 05:55:45,612 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:55:45,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267516507] [2024-11-09 05:55:45,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267516507] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:55:45,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1971092084] [2024-11-09 05:55:45,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:55:45,613 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:55:45,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:55:45,617 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:55:45,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-09 06:02:57,142 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-09 06:02:57,143 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:02:57,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 06:02:57,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:02:57,582 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-09 06:02:57,582 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:02:58,184 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-09 06:02:58,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1971092084] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:02:58,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014620444] [2024-11-09 06:02:58,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:02:58,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:02:58,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:02:58,188 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:02:58,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa4cae8-ee96-4210-b94a-0e40eac2fa1d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process