./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:29:27,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:29:27,826 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 04:29:27,838 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:29:27,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:29:27,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:29:27,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:29:27,881 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:29:27,882 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:29:27,883 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:29:27,883 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:29:27,884 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:29:27,885 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:29:27,885 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:29:27,887 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:29:27,888 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:29:27,888 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:29:27,889 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:29:27,889 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:29:27,889 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:29:27,894 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:29:27,894 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:29:27,895 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 04:29:27,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 04:29:27,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:29:27,896 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:29:27,896 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:29:27,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:29:27,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:29:27,897 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 04:29:27,897 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 04:29:27,897 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 04:29:27,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:29:27,897 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:29:27,899 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:29:27,900 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:29:27,900 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:29:27,900 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:29:27,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:29:27,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:29:27,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:29:27,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:27,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:29:27,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:29:27,904 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:29:27,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:29:27,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:29:27,904 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:29:27,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:29:27,905 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_9c388d83-66b7-4ee0-b984-2285e599594e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2024-11-09 04:29:28,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:29:28,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:29:28,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:29:28,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:29:28,330 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:29:28,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i Unable to find full path for "g++" [2024-11-09 04:29:30,685 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:29:31,139 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:29:31,142 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2024-11-09 04:29:31,167 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/data/6668e91cf/6123c8f0a6804fc9a0fb2884088b9dac/FLAG9cb5a62c7 [2024-11-09 04:29:31,190 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/data/6668e91cf/6123c8f0a6804fc9a0fb2884088b9dac [2024-11-09 04:29:31,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:29:31,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:29:31,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:31,199 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:29:31,205 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:29:31,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:31" (1/1) ... [2024-11-09 04:29:31,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6957fbbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:31, skipping insertion in model container [2024-11-09 04:29:31,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:31" (1/1) ... [2024-11-09 04:29:31,287 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:29:32,026 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 04:29:32,087 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 04:29:32,091 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 04:29:32,100 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 04:29:32,112 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 04:29:32,172 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 04:29:32,176 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 04:29:32,179 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 04:29:32,182 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 04:29:32,186 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 04:29:32,191 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 04:29:32,192 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 04:29:32,193 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 04:29:32,201 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 04:29:32,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:32,234 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 04:29:32,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7ac6355a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:32, skipping insertion in model container [2024-11-09 04:29:32,236 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:32,237 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 04:29:32,239 INFO L158 Benchmark]: Toolchain (without parser) took 1042.37ms. Allocated memory is still 153.1MB. Free memory was 114.8MB in the beginning and 88.7MB in the end (delta: 26.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-09 04:29:32,240 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 153.1MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:29:32,241 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1038.67ms. Allocated memory is still 153.1MB. Free memory was 114.8MB in the beginning and 88.7MB in the end (delta: 26.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-09 04:29:32,242 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 153.1MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1038.67ms. Allocated memory is still 153.1MB. Free memory was 114.8MB in the beginning and 88.7MB in the end (delta: 26.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:29:34,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:29:34,611 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2024-11-09 04:29:34,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:29:34,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:29:34,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:29:34,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:29:34,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:29:34,664 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:29:34,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:29:34,667 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:29:34,667 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:29:34,668 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:29:34,668 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:29:34,669 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:29:34,671 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:29:34,672 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 04:29:34,673 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 04:29:34,673 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:29:34,676 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:29:34,676 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:29:34,678 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:29:34,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:29:34,679 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 04:29:34,679 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 04:29:34,679 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 04:29:34,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:29:34,680 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:29:34,680 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 04:29:34,680 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:29:34,681 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 04:29:34,681 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:29:34,681 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:29:34,682 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:29:34,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:29:34,682 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:29:34,683 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:29:34,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:29:34,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:34,684 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:29:34,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:29:34,686 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 04:29:34,686 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 04:29:34,686 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:29:34,686 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:29:34,687 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_9c388d83-66b7-4ee0-b984-2285e599594e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2024-11-09 04:29:35,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:29:35,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:29:35,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:29:35,133 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:29:35,133 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:29:35,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i Unable to find full path for "g++" [2024-11-09 04:29:37,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:29:37,705 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:29:37,707 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2024-11-09 04:29:37,735 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/data/40da81ecf/4c2b59038ebb4c04b907876885126546/FLAG9dd529b04 [2024-11-09 04:29:37,871 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/data/40da81ecf/4c2b59038ebb4c04b907876885126546 [2024-11-09 04:29:37,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:29:37,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:29:37,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:37,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:29:37,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:29:37,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:37" (1/1) ... [2024-11-09 04:29:37,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5485ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:37, skipping insertion in model container [2024-11-09 04:29:37,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:37" (1/1) ... [2024-11-09 04:29:37,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:29:38,697 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 04:29:38,752 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 04:29:38,758 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 04:29:38,767 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 04:29:38,777 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 04:29:38,831 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 04:29:38,836 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 04:29:38,839 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 04:29:38,841 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 04:29:38,846 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 04:29:38,852 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 04:29:38,853 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 04:29:38,854 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 04:29:38,864 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 04:29:38,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:38,898 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 04:29:38,911 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:29:38,962 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 04:29:38,980 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 04:29:38,982 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 04:29:38,985 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 04:29:38,989 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 04:29:39,009 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 04:29:39,010 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 04:29:39,013 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 04:29:39,013 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 04:29:39,016 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 04:29:39,017 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 04:29:39,018 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 04:29:39,019 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 04:29:39,023 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 04:29:39,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:39,030 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:29:39,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:39,219 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:29:39,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:39 WrapperNode [2024-11-09 04:29:39,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:39,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:29:39,222 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:29:39,222 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:29:39,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:39" (1/1) ... [2024-11-09 04:29:39,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:39" (1/1) ... [2024-11-09 04:29:39,359 INFO L138 Inliner]: procedures = 286, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1043 [2024-11-09 04:29:39,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:29:39,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:29:39,360 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:29:39,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:29:39,371 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:39" (1/1) ... [2024-11-09 04:29:39,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:39" (1/1) ... [2024-11-09 04:29:39,383 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:39" (1/1) ... [2024-11-09 04:29:39,383 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:39" (1/1) ... [2024-11-09 04:29:39,422 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:39" (1/1) ... [2024-11-09 04:29:39,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:39" (1/1) ... [2024-11-09 04:29:39,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:39" (1/1) ... [2024-11-09 04:29:39,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:39" (1/1) ... [2024-11-09 04:29:39,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:29:39,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:29:39,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:29:39,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:29:39,465 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:39" (1/1) ... [2024-11-09 04:29:39,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:39,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:29:39,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:29:39,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:29:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-09 04:29:39,534 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-09 04:29:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 04:29:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 04:29:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:29:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 04:29:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:29:39,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 04:29:39,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 04:29:39,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 04:29:39,535 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-09 04:29:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-09 04:29:39,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 04:29:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 04:29:39,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:29:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:29:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-09 04:29:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-09 04:29:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 04:29:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-09 04:29:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-09 04:29:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:29:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:29:39,791 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:29:39,794 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:29:45,122 INFO L? ?]: Removed 1090 outVars from TransFormulas that were not future-live. [2024-11-09 04:29:45,122 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:29:45,189 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:29:45,189 INFO L316 CfgBuilder]: Removed 58 assume(true) statements. [2024-11-09 04:29:45,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:29:45 BoogieIcfgContainer [2024-11-09 04:29:45,190 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:29:45,192 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:29:45,192 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:29:45,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:29:45,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:29:37" (1/3) ... [2024-11-09 04:29:45,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@709a2120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:29:45, skipping insertion in model container [2024-11-09 04:29:45,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:39" (2/3) ... [2024-11-09 04:29:45,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@709a2120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:29:45, skipping insertion in model container [2024-11-09 04:29:45,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:29:45" (3/3) ... [2024-11-09 04:29:45,204 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-1.i [2024-11-09 04:29:45,223 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:29:45,224 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 522 error locations. [2024-11-09 04:29:45,310 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:29:45,319 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;@12b86877, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:29:45,319 INFO L334 AbstractCegarLoop]: Starting to check reachability of 522 error locations. [2024-11-09 04:29:45,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 1090 states, 545 states have (on average 2.1871559633027524) internal successors, (1192), 1070 states have internal predecessors, (1192), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 04:29:45,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 04:29:45,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:45,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 04:29:45,341 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:29:45,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:45,348 INFO L85 PathProgramCache]: Analyzing trace with hash 85465, now seen corresponding path program 1 times [2024-11-09 04:29:45,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:29:45,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269979124] [2024-11-09 04:29:45,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:45,365 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 04:29:45,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:29:45,369 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:29:45,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:29:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:45,604 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 04:29:45,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:29:45,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2024-11-09 04:29:45,713 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 04:29:45,713 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:29:45,714 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:29:45,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269979124] [2024-11-09 04:29:45,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269979124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:29:45,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:29:45,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:29:45,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864133958] [2024-11-09 04:29:45,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:29:45,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:29:45,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:29:45,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:29:45,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:29:45,764 INFO L87 Difference]: Start difference. First operand has 1090 states, 545 states have (on average 2.1871559633027524) internal successors, (1192), 1070 states have internal predecessors, (1192), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 04:29:48,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:48,098 INFO L93 Difference]: Finished difference Result 1170 states and 1245 transitions. [2024-11-09 04:29:48,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:29:48,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-09 04:29:48,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:48,116 INFO L225 Difference]: With dead ends: 1170 [2024-11-09 04:29:48,117 INFO L226 Difference]: Without dead ends: 1168 [2024-11-09 04:29:48,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:29:48,122 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 728 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:48,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 1054 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 04:29:48,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-11-09 04:29:48,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1111. [2024-11-09 04:29:48,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 581 states have (on average 2.0567986230636834) internal successors, (1195), 1093 states have internal predecessors, (1195), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 04:29:48,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1225 transitions. [2024-11-09 04:29:48,226 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1225 transitions. Word has length 3 [2024-11-09 04:29:48,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:48,227 INFO L471 AbstractCegarLoop]: Abstraction has 1111 states and 1225 transitions. [2024-11-09 04:29:48,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 04:29:48,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1225 transitions. [2024-11-09 04:29:48,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 04:29:48,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:48,228 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 04:29:48,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:29:48,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:29:48,431 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:29:48,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:48,432 INFO L85 PathProgramCache]: Analyzing trace with hash 85466, now seen corresponding path program 1 times [2024-11-09 04:29:48,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:29:48,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102987949] [2024-11-09 04:29:48,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:48,433 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 04:29:48,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:29:48,436 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:29:48,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:29:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:48,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 04:29:48,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:29:48,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-09 04:29:48,600 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 04:29:48,600 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:29:48,601 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:29:48,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102987949] [2024-11-09 04:29:48,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102987949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:29:48,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:29:48,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:29:48,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36737186] [2024-11-09 04:29:48,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:29:48,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:29:48,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:29:48,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:29:48,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:29:48,604 INFO L87 Difference]: Start difference. First operand 1111 states and 1225 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 04:29:51,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:51,722 INFO L93 Difference]: Finished difference Result 1518 states and 1672 transitions. [2024-11-09 04:29:51,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:29:51,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-09 04:29:51,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:51,727 INFO L225 Difference]: With dead ends: 1518 [2024-11-09 04:29:51,727 INFO L226 Difference]: Without dead ends: 1518 [2024-11-09 04:29:51,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:29:51,729 INFO L432 NwaCegarLoop]: 946 mSDtfsCounter, 434 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:51,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1558 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 04:29:51,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2024-11-09 04:29:51,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1326. [2024-11-09 04:29:51,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 795 states have (on average 2.0427672955974843) internal successors, (1624), 1306 states have internal predecessors, (1624), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 04:29:51,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1658 transitions. [2024-11-09 04:29:51,769 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1658 transitions. Word has length 3 [2024-11-09 04:29:51,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:51,770 INFO L471 AbstractCegarLoop]: Abstraction has 1326 states and 1658 transitions. [2024-11-09 04:29:51,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 04:29:51,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1658 transitions. [2024-11-09 04:29:51,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 04:29:51,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:51,787 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:29:51,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-09 04:29:51,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:29:51,991 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:29:51,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:51,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1307350193, now seen corresponding path program 1 times [2024-11-09 04:29:51,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:29:51,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6311353] [2024-11-09 04:29:51,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:51,993 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 04:29:51,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:29:51,996 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:29:52,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:29:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:52,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 04:29:52,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:29:52,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-09 04:29:52,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2024-11-09 04:29:52,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:29:52,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-09 04:29:52,323 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 04:29:52,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 04:29:52,375 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 04:29:52,376 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:29:52,376 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:29:52,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6311353] [2024-11-09 04:29:52,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6311353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:29:52,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:29:52,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:29:52,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128468827] [2024-11-09 04:29:52,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:29:52,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:29:52,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:29:52,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:29:52,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:29:52,379 INFO L87 Difference]: Start difference. First operand 1326 states and 1658 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 04:29:56,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:56,733 INFO L93 Difference]: Finished difference Result 2036 states and 2430 transitions. [2024-11-09 04:29:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:29:56,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-11-09 04:29:56,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:56,741 INFO L225 Difference]: With dead ends: 2036 [2024-11-09 04:29:56,741 INFO L226 Difference]: Without dead ends: 2036 [2024-11-09 04:29:56,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:29:56,742 INFO L432 NwaCegarLoop]: 653 mSDtfsCounter, 1467 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:56,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1471 Valid, 1271 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-09 04:29:56,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2024-11-09 04:29:56,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 1476. [2024-11-09 04:29:56,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 945 states have (on average 2.0243386243386245) internal successors, (1913), 1456 states have internal predecessors, (1913), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 04:29:56,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 1947 transitions. [2024-11-09 04:29:56,782 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 1947 transitions. Word has length 8 [2024-11-09 04:29:56,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:56,782 INFO L471 AbstractCegarLoop]: Abstraction has 1476 states and 1947 transitions. [2024-11-09 04:29:56,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 04:29:56,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 1947 transitions. [2024-11-09 04:29:56,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 04:29:56,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:56,783 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:29:56,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:29:56,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:29:56,987 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:29:56,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:56,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1873150296, now seen corresponding path program 1 times [2024-11-09 04:29:56,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:29:56,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42974324] [2024-11-09 04:29:56,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:56,990 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 04:29:56,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:29:56,993 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:29:56,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:29:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:57,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 04:29:57,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:29:57,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2024-11-09 04:29:57,222 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 04:29:57,222 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:29:57,222 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:29:57,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42974324] [2024-11-09 04:29:57,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42974324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:29:57,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:29:57,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:29:57,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063073745] [2024-11-09 04:29:57,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:29:57,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:29:57,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:29:57,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:29:57,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:29:57,225 INFO L87 Difference]: Start difference. First operand 1476 states and 1947 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:30:00,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:00,479 INFO L93 Difference]: Finished difference Result 2027 states and 2730 transitions. [2024-11-09 04:30:00,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:30:00,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 04:30:00,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:00,487 INFO L225 Difference]: With dead ends: 2027 [2024-11-09 04:30:00,488 INFO L226 Difference]: Without dead ends: 2027 [2024-11-09 04:30:00,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 04:30:00,489 INFO L432 NwaCegarLoop]: 1029 mSDtfsCounter, 932 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:00,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 2125 Invalid, 1527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 04:30:00,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2024-11-09 04:30:00,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1431. [2024-11-09 04:30:00,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 945 states have (on average 1.9619047619047618) internal successors, (1854), 1411 states have internal predecessors, (1854), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 04:30:00,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1888 transitions. [2024-11-09 04:30:00,526 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1888 transitions. Word has length 9 [2024-11-09 04:30:00,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:00,527 INFO L471 AbstractCegarLoop]: Abstraction has 1431 states and 1888 transitions. [2024-11-09 04:30:00,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:30:00,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1888 transitions. [2024-11-09 04:30:00,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 04:30:00,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:00,528 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:00,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-09 04:30:00,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:00,729 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:00,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:00,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1873150295, now seen corresponding path program 1 times [2024-11-09 04:30:00,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:00,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159420919] [2024-11-09 04:30:00,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:00,731 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 04:30:00,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:00,734 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:00,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:00,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 04:30:00,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:00,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-09 04:30:00,968 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 04:30:00,968 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:00,968 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:00,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159420919] [2024-11-09 04:30:00,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159420919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:00,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:00,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:30:00,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542666813] [2024-11-09 04:30:00,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:00,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:30:00,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:00,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:30:00,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:00,970 INFO L87 Difference]: Start difference. First operand 1431 states and 1888 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:30:05,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:05,270 INFO L93 Difference]: Finished difference Result 2091 states and 2752 transitions. [2024-11-09 04:30:05,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:30:05,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 04:30:05,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:05,279 INFO L225 Difference]: With dead ends: 2091 [2024-11-09 04:30:05,279 INFO L226 Difference]: Without dead ends: 2091 [2024-11-09 04:30:05,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 04:30:05,280 INFO L432 NwaCegarLoop]: 1205 mSDtfsCounter, 710 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:05,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 2482 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-09 04:30:05,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2024-11-09 04:30:05,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 1423. [2024-11-09 04:30:05,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 947 states have (on average 1.9345300950369588) internal successors, (1832), 1403 states have internal predecessors, (1832), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 04:30:05,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1866 transitions. [2024-11-09 04:30:05,325 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1866 transitions. Word has length 9 [2024-11-09 04:30:05,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:05,326 INFO L471 AbstractCegarLoop]: Abstraction has 1423 states and 1866 transitions. [2024-11-09 04:30:05,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:30:05,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1866 transitions. [2024-11-09 04:30:05,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 04:30:05,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:05,327 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:05,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-09 04:30:05,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:05,528 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:05,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:05,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1766492679, now seen corresponding path program 1 times [2024-11-09 04:30:05,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:05,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093497175] [2024-11-09 04:30:05,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:05,529 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 04:30:05,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:05,530 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:05,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:05,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:30:05,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:05,777 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 04:30:05,777 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:05,777 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:05,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093497175] [2024-11-09 04:30:05,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093497175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:05,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:05,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:30:05,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374588399] [2024-11-09 04:30:05,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:05,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:30:05,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:05,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:30:05,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:05,780 INFO L87 Difference]: Start difference. First operand 1423 states and 1866 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (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 04:30:06,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:06,591 INFO L93 Difference]: Finished difference Result 1873 states and 2428 transitions. [2024-11-09 04:30:06,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:30:06,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (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 14 [2024-11-09 04:30:06,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:06,598 INFO L225 Difference]: With dead ends: 1873 [2024-11-09 04:30:06,598 INFO L226 Difference]: Without dead ends: 1873 [2024-11-09 04:30:06,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 04:30:06,599 INFO L432 NwaCegarLoop]: 1165 mSDtfsCounter, 459 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 3223 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:06,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 3223 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 04:30:06,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1873 states. [2024-11-09 04:30:06,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 1681. [2024-11-09 04:30:06,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1681 states, 1205 states have (on average 1.9493775933609958) internal successors, (2349), 1661 states have internal predecessors, (2349), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 04:30:06,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2383 transitions. [2024-11-09 04:30:06,637 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2383 transitions. Word has length 14 [2024-11-09 04:30:06,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:06,637 INFO L471 AbstractCegarLoop]: Abstraction has 1681 states and 2383 transitions. [2024-11-09 04:30:06,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (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 04:30:06,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2383 transitions. [2024-11-09 04:30:06,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 04:30:06,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:06,638 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:06,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:06,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:06,842 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:06,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:06,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1757257452, now seen corresponding path program 1 times [2024-11-09 04:30:06,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:06,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886462515] [2024-11-09 04:30:06,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:06,843 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 04:30:06,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:06,847 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:06,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:07,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:30:07,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:07,082 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:30:07,083 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:30:07,084 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:30:07,088 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 04:30:07,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:30:07,145 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 04:30:07,161 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 04:30:07,161 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:07,162 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:07,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886462515] [2024-11-09 04:30:07,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886462515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:07,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:07,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:30:07,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683816994] [2024-11-09 04:30:07,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:07,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:30:07,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:07,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:30:07,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:07,164 INFO L87 Difference]: Start difference. First operand 1681 states and 2383 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:30:08,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:08,614 INFO L93 Difference]: Finished difference Result 1681 states and 2082 transitions. [2024-11-09 04:30:08,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:30:08,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-09 04:30:08,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:08,619 INFO L225 Difference]: With dead ends: 1681 [2024-11-09 04:30:08,619 INFO L226 Difference]: Without dead ends: 1681 [2024-11-09 04:30:08,620 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 04:30:08,620 INFO L432 NwaCegarLoop]: 1051 mSDtfsCounter, 370 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:08,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 3010 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 04:30:08,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2024-11-09 04:30:08,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1307. [2024-11-09 04:30:08,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 833 states have (on average 1.9255702280912366) internal successors, (1604), 1289 states have internal predecessors, (1604), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 04:30:08,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1634 transitions. [2024-11-09 04:30:08,649 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1634 transitions. Word has length 16 [2024-11-09 04:30:08,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:08,649 INFO L471 AbstractCegarLoop]: Abstraction has 1307 states and 1634 transitions. [2024-11-09 04:30:08,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:30:08,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1634 transitions. [2024-11-09 04:30:08,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 04:30:08,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:08,651 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] [2024-11-09 04:30:08,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-09 04:30:08,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:08,852 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:08,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:08,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1585974752, now seen corresponding path program 1 times [2024-11-09 04:30:08,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:08,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497539032] [2024-11-09 04:30:08,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:08,855 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 04:30:08,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:08,858 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:08,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:09,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 04:30:09,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:09,083 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 04:30:09,083 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:09,083 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:09,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497539032] [2024-11-09 04:30:09,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497539032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:09,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:09,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:30:09,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129214374] [2024-11-09 04:30:09,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:09,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:30:09,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:09,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:30:09,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:30:09,085 INFO L87 Difference]: Start difference. First operand 1307 states and 1634 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 04:30:09,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:09,115 INFO L93 Difference]: Finished difference Result 1245 states and 1544 transitions. [2024-11-09 04:30:09,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:30:09,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2024-11-09 04:30:09,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:09,119 INFO L225 Difference]: With dead ends: 1245 [2024-11-09 04:30:09,119 INFO L226 Difference]: Without dead ends: 1245 [2024-11-09 04:30:09,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:30:09,120 INFO L432 NwaCegarLoop]: 1025 mSDtfsCounter, 71 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1987 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:09,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1987 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:30:09,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2024-11-09 04:30:09,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1245. [2024-11-09 04:30:09,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 795 states have (on average 1.9044025157232705) internal successors, (1514), 1227 states have internal predecessors, (1514), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 04:30:09,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1544 transitions. [2024-11-09 04:30:09,143 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1544 transitions. Word has length 20 [2024-11-09 04:30:09,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:09,143 INFO L471 AbstractCegarLoop]: Abstraction has 1245 states and 1544 transitions. [2024-11-09 04:30:09,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 04:30:09,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1544 transitions. [2024-11-09 04:30:09,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 04:30:09,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:09,144 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] [2024-11-09 04:30:09,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-09 04:30:09,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:09,345 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:09,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:09,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1922359702, now seen corresponding path program 1 times [2024-11-09 04:30:09,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:09,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033424543] [2024-11-09 04:30:09,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:09,346 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 04:30:09,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:09,347 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:09,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:09,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 04:30:09,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:09,562 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 04:30:09,562 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:09,562 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:09,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033424543] [2024-11-09 04:30:09,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033424543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:09,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:09,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:30:09,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134960642] [2024-11-09 04:30:09,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:09,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:30:09,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:09,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:30:09,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:09,564 INFO L87 Difference]: Start difference. First operand 1245 states and 1544 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 04:30:09,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:09,648 INFO L93 Difference]: Finished difference Result 1215 states and 1486 transitions. [2024-11-09 04:30:09,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:30:09,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2024-11-09 04:30:09,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:09,652 INFO L225 Difference]: With dead ends: 1215 [2024-11-09 04:30:09,653 INFO L226 Difference]: Without dead ends: 1215 [2024-11-09 04:30:09,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 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 04:30:09,654 INFO L432 NwaCegarLoop]: 980 mSDtfsCounter, 48 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 2914 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:09,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 2914 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:30:09,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2024-11-09 04:30:09,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 1215. [2024-11-09 04:30:09,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 779 states have (on average 1.8690629011553272) internal successors, (1456), 1197 states have internal predecessors, (1456), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 04:30:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1486 transitions. [2024-11-09 04:30:09,674 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1486 transitions. Word has length 21 [2024-11-09 04:30:09,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:09,674 INFO L471 AbstractCegarLoop]: Abstraction has 1215 states and 1486 transitions. [2024-11-09 04:30:09,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 04:30:09,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1486 transitions. [2024-11-09 04:30:09,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 04:30:09,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:09,675 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] [2024-11-09 04:30:09,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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)] Forceful destruction successful, exit code 0 [2024-11-09 04:30:09,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:09,876 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:09,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:09,876 INFO L85 PathProgramCache]: Analyzing trace with hash -500085372, now seen corresponding path program 1 times [2024-11-09 04:30:09,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:09,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168883199] [2024-11-09 04:30:09,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:09,877 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 04:30:09,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:09,881 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:09,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-09 04:30:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:10,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:30:10,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:10,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2024-11-09 04:30:10,264 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 04:30:10,264 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:10,264 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:10,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168883199] [2024-11-09 04:30:10,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168883199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:10,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:10,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:30:10,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697252667] [2024-11-09 04:30:10,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:10,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:30:10,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:10,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:30:10,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:30:10,266 INFO L87 Difference]: Start difference. First operand 1215 states and 1486 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 04:30:13,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:13,580 INFO L93 Difference]: Finished difference Result 1685 states and 2080 transitions. [2024-11-09 04:30:13,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:30:13,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2024-11-09 04:30:13,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:13,584 INFO L225 Difference]: With dead ends: 1685 [2024-11-09 04:30:13,584 INFO L226 Difference]: Without dead ends: 1685 [2024-11-09 04:30:13,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:30:13,585 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 863 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:13,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1856 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 04:30:13,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2024-11-09 04:30:13,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1211. [2024-11-09 04:30:13,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1211 states, 779 states have (on average 1.858793324775353) internal successors, (1448), 1193 states have internal predecessors, (1448), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 04:30:13,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1478 transitions. [2024-11-09 04:30:13,607 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1478 transitions. Word has length 35 [2024-11-09 04:30:13,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:13,608 INFO L471 AbstractCegarLoop]: Abstraction has 1211 states and 1478 transitions. [2024-11-09 04:30:13,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 04:30:13,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1478 transitions. [2024-11-09 04:30:13,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 04:30:13,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:13,609 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] [2024-11-09 04:30:13,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-09 04:30:13,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:13,810 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:13,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:13,810 INFO L85 PathProgramCache]: Analyzing trace with hash -500085371, now seen corresponding path program 1 times [2024-11-09 04:30:13,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:13,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867698253] [2024-11-09 04:30:13,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:13,811 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 04:30:13,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:13,812 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:13,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-09 04:30:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:14,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 04:30:14,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:14,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-09 04:30:14,289 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 04:30:14,289 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:14,289 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:14,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1867698253] [2024-11-09 04:30:14,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1867698253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:14,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:14,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:30:14,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467308572] [2024-11-09 04:30:14,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:14,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:30:14,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:14,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:30:14,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:30:14,291 INFO L87 Difference]: Start difference. First operand 1211 states and 1478 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 04:30:19,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:19,354 INFO L93 Difference]: Finished difference Result 1827 states and 2250 transitions. [2024-11-09 04:30:19,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:30:19,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2024-11-09 04:30:19,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:19,360 INFO L225 Difference]: With dead ends: 1827 [2024-11-09 04:30:19,360 INFO L226 Difference]: Without dead ends: 1827 [2024-11-09 04:30:19,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:30:19,361 INFO L432 NwaCegarLoop]: 1248 mSDtfsCounter, 637 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 2127 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 3316 SdHoareTripleChecker+Invalid, 2131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:19,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 3316 Invalid, 2131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2127 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-09 04:30:19,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1827 states. [2024-11-09 04:30:19,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1827 to 1207. [2024-11-09 04:30:19,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 779 states have (on average 1.8485237483953787) internal successors, (1440), 1189 states have internal predecessors, (1440), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 04:30:19,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1470 transitions. [2024-11-09 04:30:19,384 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1470 transitions. Word has length 35 [2024-11-09 04:30:19,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:19,384 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1470 transitions. [2024-11-09 04:30:19,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 04:30:19,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1470 transitions. [2024-11-09 04:30:19,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 04:30:19,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:19,386 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:19,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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)] Ended with exit code 0 [2024-11-09 04:30:19,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:19,587 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:19,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:19,587 INFO L85 PathProgramCache]: Analyzing trace with hash -328298370, now seen corresponding path program 1 times [2024-11-09 04:30:19,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:19,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413683382] [2024-11-09 04:30:19,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:19,588 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 04:30:19,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:19,589 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:19,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:19,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 04:30:19,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:19,975 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 04:30:19,975 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:19,975 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:19,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413683382] [2024-11-09 04:30:19,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413683382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:19,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:19,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:30:19,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785304981] [2024-11-09 04:30:19,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:19,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:30:19,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:19,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:30:19,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:30:19,978 INFO L87 Difference]: Start difference. First operand 1207 states and 1470 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 04:30:20,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:20,067 INFO L93 Difference]: Finished difference Result 1195 states and 1450 transitions. [2024-11-09 04:30:20,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:30:20,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 55 [2024-11-09 04:30:20,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:20,072 INFO L225 Difference]: With dead ends: 1195 [2024-11-09 04:30:20,072 INFO L226 Difference]: Without dead ends: 1195 [2024-11-09 04:30:20,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 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 04:30:20,073 INFO L432 NwaCegarLoop]: 974 mSDtfsCounter, 21 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:20,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2891 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:30:20,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2024-11-09 04:30:20,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1195. [2024-11-09 04:30:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 767 states have (on average 1.8513689700130378) internal successors, (1420), 1177 states have internal predecessors, (1420), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 04:30:20,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1450 transitions. [2024-11-09 04:30:20,091 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1450 transitions. Word has length 55 [2024-11-09 04:30:20,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:20,091 INFO L471 AbstractCegarLoop]: Abstraction has 1195 states and 1450 transitions. [2024-11-09 04:30:20,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 04:30:20,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1450 transitions. [2024-11-09 04:30:20,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:30:20,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:20,092 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:20,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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)] Ended with exit code 0 [2024-11-09 04:30:20,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:20,297 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:20,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:20,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1476366794, now seen corresponding path program 1 times [2024-11-09 04:30:20,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:20,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [337805297] [2024-11-09 04:30:20,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:20,302 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 04:30:20,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:20,303 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:20,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-09 04:30:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:20,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 04:30:20,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:20,852 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2024-11-09 04:30:20,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17 [2024-11-09 04:30:20,936 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-09 04:30:20,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2024-11-09 04:30:21,501 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 04:30:21,501 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:21,501 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:21,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [337805297] [2024-11-09 04:30:21,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [337805297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:21,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:21,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:30:21,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746539451] [2024-11-09 04:30:21,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:21,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:30:21,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:21,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:30:21,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:30:21,506 INFO L87 Difference]: Start difference. First operand 1195 states and 1450 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 04:30:25,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:25,845 INFO L93 Difference]: Finished difference Result 2164 states and 2609 transitions. [2024-11-09 04:30:25,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:30:25,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 63 [2024-11-09 04:30:25,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:25,852 INFO L225 Difference]: With dead ends: 2164 [2024-11-09 04:30:25,852 INFO L226 Difference]: Without dead ends: 2164 [2024-11-09 04:30:25,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:30:25,852 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 1658 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1658 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:25,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1658 Valid, 2186 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-09 04:30:25,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2024-11-09 04:30:25,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 1648. [2024-11-09 04:30:25,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1205 states have (on average 1.8439834024896267) internal successors, (2222), 1618 states have internal predecessors, (2222), 29 states have call successors, (29), 9 states have call predecessors, (29), 7 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 04:30:25,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2276 transitions. [2024-11-09 04:30:25,883 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2276 transitions. Word has length 63 [2024-11-09 04:30:25,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:25,883 INFO L471 AbstractCegarLoop]: Abstraction has 1648 states and 2276 transitions. [2024-11-09 04:30:25,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 04:30:25,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2276 transitions. [2024-11-09 04:30:25,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 04:30:25,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:25,885 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:25,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-09 04:30:26,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:26,086 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:26,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:26,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1476366795, now seen corresponding path program 1 times [2024-11-09 04:30:26,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:26,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148390786] [2024-11-09 04:30:26,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:26,087 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 04:30:26,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:26,090 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:26,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-09 04:30:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:26,605 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 04:30:26,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:26,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:30:26,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-09 04:30:26,780 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-09 04:30:26,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-11-09 04:30:27,703 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 04:30:27,703 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:27,703 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:27,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148390786] [2024-11-09 04:30:27,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148390786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:27,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:27,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:30:27,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329158452] [2024-11-09 04:30:27,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:27,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:30:27,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:27,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:30:27,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:30:27,706 INFO L87 Difference]: Start difference. First operand 1648 states and 2276 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 04:30:30,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:30,688 INFO L93 Difference]: Finished difference Result 1653 states and 2282 transitions. [2024-11-09 04:30:30,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:30:30,689 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 63 [2024-11-09 04:30:30,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:30,695 INFO L225 Difference]: With dead ends: 1653 [2024-11-09 04:30:30,695 INFO L226 Difference]: Without dead ends: 1653 [2024-11-09 04:30:30,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:30:30,696 INFO L432 NwaCegarLoop]: 969 mSDtfsCounter, 58 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2052 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:30,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2052 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 04:30:30,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2024-11-09 04:30:30,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1653. [2024-11-09 04:30:30,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1209 states have (on average 1.8411910669975187) internal successors, (2226), 1622 states have internal predecessors, (2226), 30 states have call successors, (30), 10 states have call predecessors, (30), 7 states have return successors, (26), 22 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-09 04:30:30,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2282 transitions. [2024-11-09 04:30:30,736 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2282 transitions. Word has length 63 [2024-11-09 04:30:30,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:30,737 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2282 transitions. [2024-11-09 04:30:30,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 04:30:30,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2282 transitions. [2024-11-09 04:30:30,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 04:30:30,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:30,740 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:30,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-11-09 04:30:30,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:30,941 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:30,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:30,942 INFO L85 PathProgramCache]: Analyzing trace with hash 952171020, now seen corresponding path program 1 times [2024-11-09 04:30:30,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:30,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583572632] [2024-11-09 04:30:30,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:30,943 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 04:30:30,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:30,946 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:30,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:31,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:30:31,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:31,315 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 04:30:31,316 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:31,316 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:31,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583572632] [2024-11-09 04:30:31,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583572632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:31,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:31,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 04:30:31,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230065941] [2024-11-09 04:30:31,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:31,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:30:31,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:31,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:30:31,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:30:31,318 INFO L87 Difference]: Start difference. First operand 1653 states and 2282 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:30:31,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:31,447 INFO L93 Difference]: Finished difference Result 1679 states and 2309 transitions. [2024-11-09 04:30:31,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:30:31,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-09 04:30:31,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:31,454 INFO L225 Difference]: With dead ends: 1679 [2024-11-09 04:30:31,454 INFO L226 Difference]: Without dead ends: 1679 [2024-11-09 04:30:31,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:30:31,455 INFO L432 NwaCegarLoop]: 984 mSDtfsCounter, 15 mSDsluCounter, 3931 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4915 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:31,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4915 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:30:31,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2024-11-09 04:30:31,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1677. [2024-11-09 04:30:31,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1677 states, 1227 states have (on average 1.832925835370823) internal successors, (2249), 1642 states have internal predecessors, (2249), 32 states have call successors, (32), 14 states have call predecessors, (32), 11 states have return successors, (28), 24 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-09 04:30:31,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1677 states to 1677 states and 2309 transitions. [2024-11-09 04:30:31,484 INFO L78 Accepts]: Start accepts. Automaton has 1677 states and 2309 transitions. Word has length 71 [2024-11-09 04:30:31,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:31,484 INFO L471 AbstractCegarLoop]: Abstraction has 1677 states and 2309 transitions. [2024-11-09 04:30:31,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:30:31,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1677 states and 2309 transitions. [2024-11-09 04:30:31,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 04:30:31,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:31,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:31,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:31,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:31,686 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:31,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:31,686 INFO L85 PathProgramCache]: Analyzing trace with hash 609796406, now seen corresponding path program 1 times [2024-11-09 04:30:31,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:31,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995514447] [2024-11-09 04:30:31,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:31,687 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:30:31,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:31,690 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:31,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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)] Waiting until timeout for monitored process [2024-11-09 04:30:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:32,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 04:30:32,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:32,211 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 04:30:32,211 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:32,212 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:32,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995514447] [2024-11-09 04:30:32,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995514447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:32,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:32,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:30:32,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736688205] [2024-11-09 04:30:32,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:32,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:30:32,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:32,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:30:32,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:30:32,214 INFO L87 Difference]: Start difference. First operand 1677 states and 2309 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:30:32,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:32,469 INFO L93 Difference]: Finished difference Result 1689 states and 2323 transitions. [2024-11-09 04:30:32,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:30:32,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2024-11-09 04:30:32,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:32,482 INFO L225 Difference]: With dead ends: 1689 [2024-11-09 04:30:32,482 INFO L226 Difference]: Without dead ends: 1689 [2024-11-09 04:30:32,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:30:32,485 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 22 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3809 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:32,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3809 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:30:32,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2024-11-09 04:30:32,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1680. [2024-11-09 04:30:32,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1229 states have (on average 1.8315703824247356) internal successors, (2251), 1644 states have internal predecessors, (2251), 32 states have call successors, (32), 14 states have call predecessors, (32), 12 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-09 04:30:32,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2312 transitions. [2024-11-09 04:30:32,530 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2312 transitions. Word has length 69 [2024-11-09 04:30:32,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:32,530 INFO L471 AbstractCegarLoop]: Abstraction has 1680 states and 2312 transitions. [2024-11-09 04:30:32,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:30:32,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2312 transitions. [2024-11-09 04:30:32,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 04:30:32,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:32,532 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:32,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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)] Forceful destruction successful, exit code 0 [2024-11-09 04:30:32,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:32,737 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:32,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:32,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1075805489, now seen corresponding path program 1 times [2024-11-09 04:30:32,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:32,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464428944] [2024-11-09 04:30:32,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:32,744 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 04:30:32,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:32,747 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:32,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:33,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 04:30:33,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:33,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2024-11-09 04:30:33,387 WARN L873 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (= (store |c_old(#valid)| |alt_malloc_#res.base| (_ bv1 1)) |c_#valid|)) is different from true [2024-11-09 04:30:33,411 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-09 04:30:33,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2024-11-09 04:30:33,427 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 04:30:33,428 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:33,428 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:33,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464428944] [2024-11-09 04:30:33,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464428944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:33,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:33,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:30:33,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155030266] [2024-11-09 04:30:33,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:33,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:30:33,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:33,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:30:33,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2024-11-09 04:30:33,430 INFO L87 Difference]: Start difference. First operand 1680 states and 2312 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:36,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:36,864 INFO L93 Difference]: Finished difference Result 2145 states and 2904 transitions. [2024-11-09 04:30:36,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:30:36,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2024-11-09 04:30:36,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:36,874 INFO L225 Difference]: With dead ends: 2145 [2024-11-09 04:30:36,874 INFO L226 Difference]: Without dead ends: 2145 [2024-11-09 04:30:36,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=20, Unknown=1, NotChecked=8, Total=42 [2024-11-09 04:30:36,875 INFO L432 NwaCegarLoop]: 525 mSDtfsCounter, 820 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1424 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:36,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 1755 Invalid, 3152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1707 Invalid, 0 Unknown, 1424 Unchecked, 3.4s Time] [2024-11-09 04:30:36,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2024-11-09 04:30:36,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 1679. [2024-11-09 04:30:36,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1229 states have (on average 1.8299430431244914) internal successors, (2249), 1643 states have internal predecessors, (2249), 32 states have call successors, (32), 14 states have call predecessors, (32), 12 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-09 04:30:36,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2310 transitions. [2024-11-09 04:30:36,914 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2310 transitions. Word has length 74 [2024-11-09 04:30:36,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:36,914 INFO L471 AbstractCegarLoop]: Abstraction has 1679 states and 2310 transitions. [2024-11-09 04:30:36,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:36,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2310 transitions. [2024-11-09 04:30:36,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 04:30:36,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:36,918 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:36,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:37,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:37,119 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:37,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:37,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1075805490, now seen corresponding path program 1 times [2024-11-09 04:30:37,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:37,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67142267] [2024-11-09 04:30:37,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:37,121 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 04:30:37,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:37,124 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:37,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-09 04:30:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:37,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 04:30:37,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:37,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-09 04:30:37,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2024-11-09 04:30:38,431 WARN L873 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |alt_malloc_#res.base| (select |c_#length| |alt_malloc_#res.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |alt_malloc_#res.base|)))) is different from true [2024-11-09 04:30:38,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 04:30:38,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-09 04:30:38,476 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 04:30:38,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 04:30:38,512 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 04:30:38,513 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:38,513 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:38,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67142267] [2024-11-09 04:30:38,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67142267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:38,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:38,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 04:30:38,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507942652] [2024-11-09 04:30:38,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:38,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:30:38,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:38,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:30:38,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2024-11-09 04:30:38,516 INFO L87 Difference]: Start difference. First operand 1679 states and 2310 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:47,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:47,221 INFO L93 Difference]: Finished difference Result 2904 states and 3952 transitions. [2024-11-09 04:30:47,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 04:30:47,222 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2024-11-09 04:30:47,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:47,228 INFO L225 Difference]: With dead ends: 2904 [2024-11-09 04:30:47,229 INFO L226 Difference]: Without dead ends: 2904 [2024-11-09 04:30:47,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=28, Unknown=1, NotChecked=10, Total=56 [2024-11-09 04:30:47,230 INFO L432 NwaCegarLoop]: 1057 mSDtfsCounter, 1039 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 3817 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 5796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1955 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:47,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 2806 Invalid, 5796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3817 Invalid, 0 Unknown, 1955 Unchecked, 8.6s Time] [2024-11-09 04:30:47,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2024-11-09 04:30:47,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 1671. [2024-11-09 04:30:47,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1229 states have (on average 1.8169243287225387) internal successors, (2233), 1635 states have internal predecessors, (2233), 32 states have call successors, (32), 14 states have call predecessors, (32), 12 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-09 04:30:47,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2294 transitions. [2024-11-09 04:30:47,263 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2294 transitions. Word has length 74 [2024-11-09 04:30:47,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:47,263 INFO L471 AbstractCegarLoop]: Abstraction has 1671 states and 2294 transitions. [2024-11-09 04:30:47,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:30:47,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2294 transitions. [2024-11-09 04:30:47,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 04:30:47,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:47,265 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:47,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-09 04:30:47,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:47,469 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting alt_bzeroErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:47,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:47,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1236256541, now seen corresponding path program 1 times [2024-11-09 04:30:47,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:47,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857723899] [2024-11-09 04:30:47,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:47,470 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 04:30:47,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:47,471 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:47,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-09 04:30:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:47,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 04:30:47,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:47,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2024-11-09 04:30:47,870 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 19 treesize of output 1 [2024-11-09 04:30:47,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-09 04:30:47,950 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 04:30:47,950 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:47,950 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:47,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [857723899] [2024-11-09 04:30:47,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [857723899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:47,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:47,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 04:30:47,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956289360] [2024-11-09 04:30:47,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:47,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:30:47,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:47,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:30:47,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:30:47,952 INFO L87 Difference]: Start difference. First operand 1671 states and 2294 transitions. Second operand has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:30:52,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:30:52,847 INFO L93 Difference]: Finished difference Result 1686 states and 2310 transitions. [2024-11-09 04:30:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 04:30:52,848 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2024-11-09 04:30:52,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:30:52,856 INFO L225 Difference]: With dead ends: 1686 [2024-11-09 04:30:52,856 INFO L226 Difference]: Without dead ends: 1686 [2024-11-09 04:30:52,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-09 04:30:52,861 INFO L432 NwaCegarLoop]: 971 mSDtfsCounter, 16 mSDsluCounter, 3240 mSDsCounter, 0 mSdLazyCounter, 2641 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4211 SdHoareTripleChecker+Invalid, 2643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:30:52,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4211 Invalid, 2643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2641 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-09 04:30:52,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2024-11-09 04:30:52,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1685. [2024-11-09 04:30:52,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1241 states have (on average 1.8122481869460112) internal successors, (2249), 1647 states have internal predecessors, (2249), 32 states have call successors, (32), 16 states have call predecessors, (32), 14 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-09 04:30:52,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2310 transitions. [2024-11-09 04:30:52,921 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2310 transitions. Word has length 81 [2024-11-09 04:30:52,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:30:52,921 INFO L471 AbstractCegarLoop]: Abstraction has 1685 states and 2310 transitions. [2024-11-09 04:30:52,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:30:52,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2310 transitions. [2024-11-09 04:30:52,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 04:30:52,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:30:52,927 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:30:52,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-09 04:30:53,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:53,128 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting alt_bzeroErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:30:53,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:30:53,128 INFO L85 PathProgramCache]: Analyzing trace with hash 330752969, now seen corresponding path program 1 times [2024-11-09 04:30:53,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:30:53,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372360921] [2024-11-09 04:30:53,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:30:53,129 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 04:30:53,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:30:53,132 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:53,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:30:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:30:53,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 04:30:53,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:30:53,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-09 04:30:53,579 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 13 treesize of output 9 [2024-11-09 04:30:53,588 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 19 treesize of output 1 [2024-11-09 04:30:53,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-09 04:30:53,744 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 04:30:53,744 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:30:53,744 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:30:53,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372360921] [2024-11-09 04:30:53,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372360921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:30:53,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:30:53,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:30:53,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341747452] [2024-11-09 04:30:53,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:30:53,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 04:30:53,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:30:53,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 04:30:53,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 04:30:53,746 INFO L87 Difference]: Start difference. First operand 1685 states and 2310 transitions. Second operand has 9 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:31:00,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:00,433 INFO L93 Difference]: Finished difference Result 1685 states and 2308 transitions. [2024-11-09 04:31:00,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 04:31:00,434 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 82 [2024-11-09 04:31:00,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:00,437 INFO L225 Difference]: With dead ends: 1685 [2024-11-09 04:31:00,437 INFO L226 Difference]: Without dead ends: 1685 [2024-11-09 04:31:00,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-09 04:31:00,438 INFO L432 NwaCegarLoop]: 967 mSDtfsCounter, 13 mSDsluCounter, 4048 mSDsCounter, 0 mSdLazyCounter, 2814 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5015 SdHoareTripleChecker+Invalid, 2815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:00,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5015 Invalid, 2815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2814 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-09 04:31:00,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2024-11-09 04:31:00,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1685. [2024-11-09 04:31:00,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1241 states have (on average 1.8106365834004834) internal successors, (2247), 1647 states have internal predecessors, (2247), 32 states have call successors, (32), 16 states have call predecessors, (32), 14 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-09 04:31:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2308 transitions. [2024-11-09 04:31:00,462 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2308 transitions. Word has length 82 [2024-11-09 04:31:00,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:00,463 INFO L471 AbstractCegarLoop]: Abstraction has 1685 states and 2308 transitions. [2024-11-09 04:31:00,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:31:00,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2308 transitions. [2024-11-09 04:31:00,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 04:31:00,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:00,464 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:00,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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)] Ended with exit code 0 [2024-11-09 04:31:00,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:31:00,665 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:31:00,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:00,665 INFO L85 PathProgramCache]: Analyzing trace with hash 922048066, now seen corresponding path program 1 times [2024-11-09 04:31:00,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:31:00,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581067268] [2024-11-09 04:31:00,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:00,666 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 04:31:00,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:31:00,668 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:31:00,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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)] Waiting until timeout for monitored process [2024-11-09 04:31:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:01,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:31:01,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:01,119 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 04:31:01,119 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:31:01,120 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:31:01,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581067268] [2024-11-09 04:31:01,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581067268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:01,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:01,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:31:01,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10888012] [2024-11-09 04:31:01,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:01,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:31:01,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:31:01,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:31:01,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:31:01,123 INFO L87 Difference]: Start difference. First operand 1685 states and 2308 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:31:01,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:01,218 INFO L93 Difference]: Finished difference Result 1701 states and 2326 transitions. [2024-11-09 04:31:01,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:31:01,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 89 [2024-11-09 04:31:01,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:01,223 INFO L225 Difference]: With dead ends: 1701 [2024-11-09 04:31:01,224 INFO L226 Difference]: Without dead ends: 1695 [2024-11-09 04:31:01,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:31:01,225 INFO L432 NwaCegarLoop]: 976 mSDtfsCounter, 3 mSDsluCounter, 2912 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3888 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:01,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3888 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:31:01,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2024-11-09 04:31:01,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1695. [2024-11-09 04:31:01,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1249 states have (on average 1.8070456365092074) internal successors, (2257), 1657 states have internal predecessors, (2257), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2024-11-09 04:31:01,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2320 transitions. [2024-11-09 04:31:01,253 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2320 transitions. Word has length 89 [2024-11-09 04:31:01,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:01,254 INFO L471 AbstractCegarLoop]: Abstraction has 1695 states and 2320 transitions. [2024-11-09 04:31:01,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:31:01,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2320 transitions. [2024-11-09 04:31:01,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 04:31:01,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:01,255 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:01,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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)] Ended with exit code 0 [2024-11-09 04:31:01,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:31:01,459 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:31:01,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:01,460 INFO L85 PathProgramCache]: Analyzing trace with hash 353529508, now seen corresponding path program 1 times [2024-11-09 04:31:01,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:31:01,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529078100] [2024-11-09 04:31:01,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:01,460 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 04:31:01,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:31:01,462 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:31:01,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-09 04:31:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:01,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 04:31:01,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:01,932 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:31:02,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:02,077 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:31:02,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529078100] [2024-11-09 04:31:02,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529078100] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:31:02,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1634289436] [2024-11-09 04:31:02,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:02,078 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 04:31:02,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 04:31:02,079 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 04:31:02,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-11-09 04:31:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:02,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 04:31:02,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:02,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:02,871 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:31:02,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:02,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1634289436] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:31:02,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719168711] [2024-11-09 04:31:02,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:02,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:02,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:02,943 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:02,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 04:31:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:03,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 04:31:03,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:03,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:03,343 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:31:03,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:03,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719168711] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:31:03,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 04:31:03,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 10 [2024-11-09 04:31:03,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511713149] [2024-11-09 04:31:03,403 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 04:31:03,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:31:03,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:31:03,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:31:03,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-09 04:31:03,405 INFO L87 Difference]: Start difference. First operand 1695 states and 2320 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 04:31:03,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:03,644 INFO L93 Difference]: Finished difference Result 1721 states and 2350 transitions. [2024-11-09 04:31:03,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:31:03,645 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 90 [2024-11-09 04:31:03,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:03,649 INFO L225 Difference]: With dead ends: 1721 [2024-11-09 04:31:03,649 INFO L226 Difference]: Without dead ends: 1709 [2024-11-09 04:31:03,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 526 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-09 04:31:03,650 INFO L432 NwaCegarLoop]: 976 mSDtfsCounter, 21 mSDsluCounter, 3885 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4861 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:03,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4861 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:31:03,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2024-11-09 04:31:03,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1703. [2024-11-09 04:31:03,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1257 states have (on average 1.8035003977724742) internal successors, (2267), 1665 states have internal predecessors, (2267), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2024-11-09 04:31:03,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2330 transitions. [2024-11-09 04:31:03,673 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2330 transitions. Word has length 90 [2024-11-09 04:31:03,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:03,674 INFO L471 AbstractCegarLoop]: Abstraction has 1703 states and 2330 transitions. [2024-11-09 04:31:03,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 04:31:03,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2330 transitions. [2024-11-09 04:31:03,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-09 04:31:03,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:03,675 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:03,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-09 04:31:03,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2024-11-09 04:31:04,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-09 04:31:04,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:04,276 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:31:04,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:04,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1638489794, now seen corresponding path program 2 times [2024-11-09 04:31:04,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:31:04,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521263488] [2024-11-09 04:31:04,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 04:31:04,278 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 04:31:04,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:31:04,279 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:31:04,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-09 04:31:04,925 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 04:31:04,925 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:31:04,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 04:31:04,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:05,053 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:05,054 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:31:05,356 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:05,356 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:31:05,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521263488] [2024-11-09 04:31:05,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521263488] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:31:05,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1983484264] [2024-11-09 04:31:05,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 04:31:05,357 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 04:31:05,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 04:31:05,358 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 04:31:05,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-09 04:31:09,049 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 04:31:09,049 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:31:09,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 04:31:09,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:09,156 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:09,157 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:31:09,309 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:09,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1983484264] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:31:09,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456768189] [2024-11-09 04:31:09,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 04:31:09,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:09,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:09,312 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:09,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 04:31:43,912 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 04:31:43,913 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:31:43,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 04:31:43,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:44,062 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:44,063 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:31:44,606 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:44,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456768189] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:31:44,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 04:31:44,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 23 [2024-11-09 04:31:44,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597736301] [2024-11-09 04:31:44,607 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 04:31:44,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 04:31:44,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:31:44,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 04:31:44,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2024-11-09 04:31:44,609 INFO L87 Difference]: Start difference. First operand 1703 states and 2330 transitions. Second operand has 23 states, 23 states have (on average 4.695652173913044) internal successors, (108), 23 states have internal predecessors, (108), 1 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 04:31:45,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:45,464 INFO L93 Difference]: Finished difference Result 1745 states and 2384 transitions. [2024-11-09 04:31:45,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 04:31:45,465 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.695652173913044) internal successors, (108), 23 states have internal predecessors, (108), 1 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 93 [2024-11-09 04:31:45,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:45,469 INFO L225 Difference]: With dead ends: 1745 [2024-11-09 04:31:45,469 INFO L226 Difference]: Without dead ends: 1727 [2024-11-09 04:31:45,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=380, Invalid=742, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 04:31:45,473 INFO L432 NwaCegarLoop]: 976 mSDtfsCounter, 43 mSDsluCounter, 10676 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 11652 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:45,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 11652 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:31:45,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2024-11-09 04:31:45,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1721. [2024-11-09 04:31:45,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1275 states have (on average 1.795294117647059) internal successors, (2289), 1683 states have internal predecessors, (2289), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2024-11-09 04:31:45,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2352 transitions. [2024-11-09 04:31:45,530 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2352 transitions. Word has length 93 [2024-11-09 04:31:45,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:45,532 INFO L471 AbstractCegarLoop]: Abstraction has 1721 states and 2352 transitions. [2024-11-09 04:31:45,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.695652173913044) internal successors, (108), 23 states have internal predecessors, (108), 1 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 04:31:45,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2352 transitions. [2024-11-09 04:31:45,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 04:31:45,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:45,534 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:45,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-09 04:31:45,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-11-09 04:31:45,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2024-11-09 04:31:46,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 04:31:46,135 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 519 more)] === [2024-11-09 04:31:46,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:46,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1092088706, now seen corresponding path program 3 times [2024-11-09 04:31:46,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:31:46,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480400495] [2024-11-09 04:31:46,136 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:31:46,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:31:46,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:31:46,138 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 04:31:46,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/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 (29)] Waiting until timeout for monitored process [2024-11-09 04:31:47,230 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-09 04:31:47,230 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:31:47,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 04:31:47,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:47,598 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:47,598 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:31:48,617 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:48,617 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:31:48,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480400495] [2024-11-09 04:31:48,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480400495] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:31:48,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1840752116] [2024-11-09 04:31:48,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:31:48,618 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 04:31:48,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 04:31:48,621 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 04:31:48,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2024-11-09 04:31:57,990 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-09 04:31:57,990 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:31:58,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 04:31:58,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:58,112 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:58,112 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:31:58,392 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:31:58,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1840752116] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:31:58,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117079586] [2024-11-09 04:31:58,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:31:58,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:58,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:58,394 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:58,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c388d83-66b7-4ee0-b984-2285e599594e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process