./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:35:26,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:35:26,575 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-14 03:35:26,585 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:35:26,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:35:26,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:35:26,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:35:26,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:35:26,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:35:26,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:35:26,620 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:35:26,621 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:35:26,621 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:35:26,621 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:35:26,621 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:35:26,621 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:35:26,621 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:35:26,622 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:35:26,622 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:35:26,622 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:35:26,622 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:35:26,622 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:35:26,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:35:26,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:35:26,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:35:26,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:35:26,624 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:35:26,624 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:35:26,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:35:26,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:35:26,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:35:26,625 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:35:26,625 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:35:26,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:35:26,625 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:35:26,625 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:35:26,626 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:35:26,626 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:35:26,626 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:35:26,626 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:35:26,626 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:35:26,627 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:35:26,627 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:35:26,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:35:26,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:35:26,627 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:35:26,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:35:26,628 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:35:26,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:35:26,628 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:35:26,628 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:35:26,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:35:26,629 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-14 03:35:27,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:35:27,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:35:27,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:35:27,060 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:35:27,060 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:35:27,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i Unable to find full path for "g++" [2024-11-14 03:35:29,364 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:35:29,953 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:35:29,953 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i [2024-11-14 03:35:29,974 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/data/a00573eda/d63afe5331db45348e49b12fffdde206/FLAG066e54d57 [2024-11-14 03:35:29,992 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/data/a00573eda/d63afe5331db45348e49b12fffdde206 [2024-11-14 03:35:29,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:35:29,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:35:29,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:35:29,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:35:30,005 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:35:30,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:35:29" (1/1) ... [2024-11-14 03:35:30,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b1d663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:30, skipping insertion in model container [2024-11-14 03:35:30,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:35:29" (1/1) ... [2024-11-14 03:35:30,070 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:35:30,620 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,683 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,688 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,692 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,705 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,750 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,750 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,754 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,754 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,758 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,760 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,762 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,763 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,771 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,772 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,778 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,780 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,781 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,782 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,794 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:30,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:35:30,818 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) [2024-11-14 03:35:30,819 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@69da9b79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:30, skipping insertion in model container [2024-11-14 03:35:30,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:35:30,820 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-14 03:35:30,822 INFO L158 Benchmark]: Toolchain (without parser) took 824.28ms. Allocated memory is still 167.8MB. Free memory was 126.8MB in the beginning and 106.7MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:35:30,823 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 106.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:35:30,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 820.82ms. Allocated memory is still 167.8MB. Free memory was 126.5MB in the beginning and 106.7MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:35:30,825 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 106.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 820.82ms. Allocated memory is still 167.8MB. Free memory was 126.5MB in the beginning and 106.7MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:35:33,941 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:35:34,080 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-14 03:35:34,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:35:34,088 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:35:34,143 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:35:34,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:35:34,146 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:35:34,147 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:35:34,147 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:35:34,147 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:35:34,147 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:35:34,147 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:35:34,147 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:35:34,147 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:35:34,147 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:35:34,148 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:35:34,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:35:34,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:35:34,151 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:35:34,151 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:35:34,151 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:35:34,152 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:35:34,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:35:34,152 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:35:34,152 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:35:34,152 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:35:34,152 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:35:34,153 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:35:34,153 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:35:34,153 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:35:34,153 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:35:34,153 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:35:34,154 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:35:34,154 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:35:34,155 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:35:34,155 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:35:34,155 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:35:34,155 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:35:34,156 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:35:34,156 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:35:34,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:35:34,156 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:35:34,156 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:35:34,157 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:35:34,157 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:35:34,157 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:35:34,157 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:35:34,157 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-14 03:35:34,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:35:34,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:35:34,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:35:34,537 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:35:34,537 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:35:34,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i Unable to find full path for "g++" [2024-11-14 03:35:36,675 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:35:37,101 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:35:37,102 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i [2024-11-14 03:35:37,133 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/data/6858dcb05/bb5032cdb54c4c6ebbe1038df768cc77/FLAGbfc93a7fc [2024-11-14 03:35:37,166 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/data/6858dcb05/bb5032cdb54c4c6ebbe1038df768cc77 [2024-11-14 03:35:37,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:35:37,170 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:35:37,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:35:37,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:35:37,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:35:37,184 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:35:37" (1/1) ... [2024-11-14 03:35:37,185 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@213243a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:37, skipping insertion in model container [2024-11-14 03:35:37,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:35:37" (1/1) ... [2024-11-14 03:35:37,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:35:37,821 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:37,893 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:37,905 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:37,913 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:37,929 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:37,978 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:37,978 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:37,983 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:37,983 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:37,988 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:37,990 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:37,992 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:37,993 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,001 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,002 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,006 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,008 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,010 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,011 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,017 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:35:38,055 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-14 03:35:38,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:35:38,154 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,204 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,211 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,217 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,224 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,255 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,255 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,258 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,258 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,262 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,263 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,264 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,265 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,270 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,271 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,273 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,274 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,275 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,276 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,286 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:35:38,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:35:38,299 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:35:38,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:35:38,531 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:35:38,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:38 WrapperNode [2024-11-14 03:35:38,532 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:35:38,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:35:38,534 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:35:38,534 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:35:38,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:38" (1/1) ... [2024-11-14 03:35:38,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:38" (1/1) ... [2024-11-14 03:35:38,644 INFO L138 Inliner]: procedures = 180, calls = 325, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1149 [2024-11-14 03:35:38,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:35:38,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:35:38,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:35:38,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:35:38,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:38" (1/1) ... [2024-11-14 03:35:38,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:38" (1/1) ... [2024-11-14 03:35:38,667 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:38" (1/1) ... [2024-11-14 03:35:38,667 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:38" (1/1) ... [2024-11-14 03:35:38,721 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:38" (1/1) ... [2024-11-14 03:35:38,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:38" (1/1) ... [2024-11-14 03:35:38,737 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:38" (1/1) ... [2024-11-14 03:35:38,741 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:38" (1/1) ... [2024-11-14 03:35:38,778 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:35:38,779 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:35:38,783 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:35:38,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:35:38,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:38" (1/1) ... [2024-11-14 03:35:38,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:35:38,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:35:38,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:35:38,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:35:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 03:35:38,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 03:35:38,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:35:38,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:35:38,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 03:35:38,872 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 03:35:38,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:35:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:35:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:35:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:35:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:35:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 03:35:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:35:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:35:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:35:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:35:39,232 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:35:39,234 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:35:46,905 INFO L? ?]: Removed 137 outVars from TransFormulas that were not future-live. [2024-11-14 03:35:46,905 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:35:46,929 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:35:46,930 INFO L316 CfgBuilder]: Removed 72 assume(true) statements. [2024-11-14 03:35:46,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:35:46 BoogieIcfgContainer [2024-11-14 03:35:46,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:35:46,934 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:35:46,934 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:35:46,939 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:35:46,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:35:37" (1/3) ... [2024-11-14 03:35:46,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7606111c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:35:46, skipping insertion in model container [2024-11-14 03:35:46,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:38" (2/3) ... [2024-11-14 03:35:46,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7606111c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:35:46, skipping insertion in model container [2024-11-14 03:35:46,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:35:46" (3/3) ... [2024-11-14 03:35:46,943 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test3-2.i [2024-11-14 03:35:46,959 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:35:46,961 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_nondet_test3-2.i that has 3 procedures, 231 locations, 1 initial locations, 41 loop locations, and 2 error locations. [2024-11-14 03:35:47,013 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:35:47,035 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;@4e4da931, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:35:47,035 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:35:47,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 221 states have (on average 1.665158371040724) internal successors, (368), 224 states have internal predecessors, (368), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:35:47,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:35:47,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:47,050 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:35:47,051 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:35:47,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:47,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1172747, now seen corresponding path program 1 times [2024-11-14 03:35:47,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:35:47,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976622520] [2024-11-14 03:35:47,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:47,073 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 [2024-11-14 03:35:47,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:35:47,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:35:47,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:35:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:47,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:35:47,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:35:47,401 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_16| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16|)))) is different from true [2024-11-14 03:35:47,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:47,406 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:35:47,407 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:35:47,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976622520] [2024-11-14 03:35:47,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976622520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:47,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:47,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:35:47,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594596518] [2024-11-14 03:35:47,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:47,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:35:47,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:35:47,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:35:47,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-14 03:35:47,450 INFO L87 Difference]: Start difference. First operand has 231 states, 221 states have (on average 1.665158371040724) internal successors, (368), 224 states have internal predecessors, (368), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:49,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:50,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:50,344 INFO L93 Difference]: Finished difference Result 353 states and 465 transitions. [2024-11-14 03:35:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:35:50,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 03:35:50,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:50,366 INFO L225 Difference]: With dead ends: 353 [2024-11-14 03:35:50,366 INFO L226 Difference]: Without dead ends: 350 [2024-11-14 03:35:50,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-14 03:35:50,371 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 156 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 466 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:50,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 567 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 1 Unknown, 466 Unchecked, 2.8s Time] [2024-11-14 03:35:50,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-14 03:35:50,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 228. [2024-11-14 03:35:50,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 219 states have (on average 1.3059360730593608) internal successors, (286), 221 states have internal predecessors, (286), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:35:50,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 296 transitions. [2024-11-14 03:35:50,475 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 296 transitions. Word has length 4 [2024-11-14 03:35:50,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:50,475 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 296 transitions. [2024-11-14 03:35:50,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:50,477 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 296 transitions. [2024-11-14 03:35:50,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 03:35:50,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:50,480 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:35:50,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 03:35:50,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:35:50,682 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:35:50,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:50,683 INFO L85 PathProgramCache]: Analyzing trace with hash -2023633407, now seen corresponding path program 1 times [2024-11-14 03:35:50,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:35:50,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932971929] [2024-11-14 03:35:50,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:50,684 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 [2024-11-14 03:35:50,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:35:50,687 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:35:50,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:35:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:50,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:35:50,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:35:51,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:51,133 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:35:51,134 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:35:51,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932971929] [2024-11-14 03:35:51,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932971929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:51,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:51,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:35:51,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461827754] [2024-11-14 03:35:51,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:51,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:35:51,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:35:51,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:35:51,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:35:51,141 INFO L87 Difference]: Start difference. First operand 228 states and 296 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, (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) [2024-11-14 03:35:53,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:57,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:57,368 INFO L93 Difference]: Finished difference Result 374 states and 487 transitions. [2024-11-14 03:35:57,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:35:57,371 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, (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 15 [2024-11-14 03:35:57,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:57,372 INFO L225 Difference]: With dead ends: 374 [2024-11-14 03:35:57,372 INFO L226 Difference]: Without dead ends: 374 [2024-11-14 03:35:57,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:35:57,374 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 181 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:57,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 829 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 112 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2024-11-14 03:35:57,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-14 03:35:57,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 343. [2024-11-14 03:35:57,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 333 states have (on average 1.3063063063063063) internal successors, (435), 336 states have internal predecessors, (435), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:35:57,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 447 transitions. [2024-11-14 03:35:57,395 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 447 transitions. Word has length 15 [2024-11-14 03:35:57,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:57,396 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 447 transitions. [2024-11-14 03:35:57,396 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, (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) [2024-11-14 03:35:57,396 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 447 transitions. [2024-11-14 03:35:57,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 03:35:57,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:57,397 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:35:57,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 03:35:57,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:35:57,600 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:35:57,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:57,600 INFO L85 PathProgramCache]: Analyzing trace with hash -285831265, now seen corresponding path program 1 times [2024-11-14 03:35:57,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:35:57,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104449082] [2024-11-14 03:35:57,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:57,601 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 [2024-11-14 03:35:57,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:35:57,603 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:35:57,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:35:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:57,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:35:57,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:35:58,084 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_17| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17|)))) is different from true [2024-11-14 03:35:58,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:58,085 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:35:58,086 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:35:58,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104449082] [2024-11-14 03:35:58,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104449082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:58,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:58,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:35:58,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108708684] [2024-11-14 03:35:58,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:58,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:35:58,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:35:58,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:35:58,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-14 03:35:58,090 INFO L87 Difference]: Start difference. First operand 343 states and 447 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:36:00,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:36:01,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:36:01,241 INFO L93 Difference]: Finished difference Result 436 states and 566 transitions. [2024-11-14 03:36:01,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:36:01,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-14 03:36:01,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:36:01,250 INFO L225 Difference]: With dead ends: 436 [2024-11-14 03:36:01,250 INFO L226 Difference]: Without dead ends: 428 [2024-11-14 03:36:01,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-14 03:36:01,251 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 86 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 398 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:36:01,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 563 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 398 Unchecked, 3.1s Time] [2024-11-14 03:36:01,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-14 03:36:01,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 388. [2024-11-14 03:36:01,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 377 states have (on average 1.3050397877984086) internal successors, (492), 380 states have internal predecessors, (492), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:36:01,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 506 transitions. [2024-11-14 03:36:01,295 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 506 transitions. Word has length 16 [2024-11-14 03:36:01,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:36:01,296 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 506 transitions. [2024-11-14 03:36:01,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:36:01,296 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 506 transitions. [2024-11-14 03:36:01,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-14 03:36:01,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:36:01,298 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:36:01,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:01,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:36:01,499 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:36:01,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:36:01,500 INFO L85 PathProgramCache]: Analyzing trace with hash 982350072, now seen corresponding path program 1 times [2024-11-14 03:36:01,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:36:01,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889332705] [2024-11-14 03:36:01,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:01,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:36:01,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:36:01,502 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:36:01,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:01,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:36:01,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:01,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:36:01,822 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:36:01,822 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:36:01,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889332705] [2024-11-14 03:36:01,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889332705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:36:01,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:36:01,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:36:01,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450879068] [2024-11-14 03:36:01,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:36:01,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:36:01,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:36:01,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:36:01,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:36:01,824 INFO L87 Difference]: Start difference. First operand 388 states and 506 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:36:02,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:36:02,019 INFO L93 Difference]: Finished difference Result 397 states and 491 transitions. [2024-11-14 03:36:02,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:36:02,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-14 03:36:02,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:36:02,022 INFO L225 Difference]: With dead ends: 397 [2024-11-14 03:36:02,022 INFO L226 Difference]: Without dead ends: 397 [2024-11-14 03:36:02,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:36:02,027 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 33 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:36:02,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 776 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:36:02,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-14 03:36:02,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-11-14 03:36:02,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 386 states have (on average 1.2357512953367875) internal successors, (477), 389 states have internal predecessors, (477), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:36:02,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 491 transitions. [2024-11-14 03:36:02,063 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 491 transitions. Word has length 51 [2024-11-14 03:36:02,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:36:02,066 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 491 transitions. [2024-11-14 03:36:02,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:36:02,067 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 491 transitions. [2024-11-14 03:36:02,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-14 03:36:02,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:36:02,068 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:36:02,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:36:02,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:36:02,269 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:36:02,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:36:02,270 INFO L85 PathProgramCache]: Analyzing trace with hash -957859992, now seen corresponding path program 1 times [2024-11-14 03:36:02,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:36:02,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733381419] [2024-11-14 03:36:02,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:02,270 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 [2024-11-14 03:36:02,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:36:02,272 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:36:02,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:02,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:36:02,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:02,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:36:02,659 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:36:02,659 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:36:02,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733381419] [2024-11-14 03:36:02,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733381419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:36:02,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:36:02,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:36:02,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408831468] [2024-11-14 03:36:02,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:36:02,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:36:02,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:36:02,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:36:02,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:36:02,665 INFO L87 Difference]: Start difference. First operand 397 states and 491 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:36:02,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:36:02,822 INFO L93 Difference]: Finished difference Result 379 states and 461 transitions. [2024-11-14 03:36:02,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:36:02,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-14 03:36:02,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:36:02,825 INFO L225 Difference]: With dead ends: 379 [2024-11-14 03:36:02,826 INFO L226 Difference]: Without dead ends: 379 [2024-11-14 03:36:02,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:36:02,827 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 8 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:36:02,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 776 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:36:02,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-14 03:36:02,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2024-11-14 03:36:02,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 368 states have (on average 1.2146739130434783) internal successors, (447), 371 states have internal predecessors, (447), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:36:02,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 461 transitions. [2024-11-14 03:36:02,856 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 461 transitions. Word has length 51 [2024-11-14 03:36:02,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:36:02,856 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 461 transitions. [2024-11-14 03:36:02,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:36:02,857 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 461 transitions. [2024-11-14 03:36:02,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-14 03:36:02,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:36:02,861 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:36:02,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-14 03:36:03,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:36:03,062 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:36:03,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:36:03,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1635078446, now seen corresponding path program 1 times [2024-11-14 03:36:03,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:36:03,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618831532] [2024-11-14 03:36:03,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:03,063 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 [2024-11-14 03:36:03,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:36:03,065 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:36:03,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:03,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 03:36:03,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:03,396 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:36:03,397 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:36:03,398 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:36:03,406 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 [2024-11-14 03:36:03,519 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:36:03,519 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 [2024-11-14 03:36:03,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:36:03,613 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:36:03,613 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:36:03,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618831532] [2024-11-14 03:36:03,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618831532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:36:03,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:36:03,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:36:03,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144806741] [2024-11-14 03:36:03,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:36:03,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:36:03,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:36:03,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:36:03,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:36:03,618 INFO L87 Difference]: Start difference. First operand 379 states and 461 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:36:07,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:36:09,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:36:09,363 INFO L93 Difference]: Finished difference Result 339 states and 418 transitions. [2024-11-14 03:36:09,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:36:09,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-14 03:36:09,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:36:09,366 INFO L225 Difference]: With dead ends: 339 [2024-11-14 03:36:09,366 INFO L226 Difference]: Without dead ends: 336 [2024-11-14 03:36:09,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:36:09,370 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 52 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:36:09,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 978 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2024-11-14 03:36:09,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-14 03:36:09,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2024-11-14 03:36:09,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 326 states have (on average 1.2361963190184049) internal successors, (403), 329 states have internal predecessors, (403), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:36:09,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 415 transitions. [2024-11-14 03:36:09,385 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 415 transitions. Word has length 51 [2024-11-14 03:36:09,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:36:09,385 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 415 transitions. [2024-11-14 03:36:09,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:36:09,387 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 415 transitions. [2024-11-14 03:36:09,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 03:36:09,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:36:09,394 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:36:09,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:09,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:36:09,595 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:36:09,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:36:09,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1694486788, now seen corresponding path program 1 times [2024-11-14 03:36:09,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:36:09,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613921432] [2024-11-14 03:36:09,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:09,599 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 [2024-11-14 03:36:09,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:36:09,602 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:36:09,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:10,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:36:10,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:10,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:36:10,315 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:36:10,316 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:36:10,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613921432] [2024-11-14 03:36:10,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613921432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:36:10,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:36:10,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:36:10,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590322860] [2024-11-14 03:36:10,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:36:10,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:36:10,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:36:10,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:36:10,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:36:10,319 INFO L87 Difference]: Start difference. First operand 336 states and 415 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:36:10,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:36:10,489 INFO L93 Difference]: Finished difference Result 342 states and 405 transitions. [2024-11-14 03:36:10,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:36:10,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-11-14 03:36:10,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:36:10,491 INFO L225 Difference]: With dead ends: 342 [2024-11-14 03:36:10,491 INFO L226 Difference]: Without dead ends: 342 [2024-11-14 03:36:10,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:36:10,492 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 30 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:36:10,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 734 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:36:10,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-14 03:36:10,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2024-11-14 03:36:10,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 332 states have (on average 1.1837349397590362) internal successors, (393), 335 states have internal predecessors, (393), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:36:10,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 405 transitions. [2024-11-14 03:36:10,505 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 405 transitions. Word has length 86 [2024-11-14 03:36:10,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:36:10,505 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 405 transitions. [2024-11-14 03:36:10,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:36:10,506 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 405 transitions. [2024-11-14 03:36:10,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 03:36:10,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:36:10,508 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:36:10,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:10,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:36:10,709 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:36:10,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:36:10,709 INFO L85 PathProgramCache]: Analyzing trace with hash 439680760, now seen corresponding path program 1 times [2024-11-14 03:36:10,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:36:10,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683754640] [2024-11-14 03:36:10,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:10,710 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 [2024-11-14 03:36:10,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:36:10,714 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:36:10,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:11,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:36:11,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:11,373 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:36:11,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:36:11,373 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:36:11,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683754640] [2024-11-14 03:36:11,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683754640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:36:11,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:36:11,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:36:11,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955887995] [2024-11-14 03:36:11,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:36:11,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:36:11,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:36:11,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:36:11,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:36:11,375 INFO L87 Difference]: Start difference. First operand 342 states and 405 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:36:11,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:36:11,442 INFO L93 Difference]: Finished difference Result 345 states and 409 transitions. [2024-11-14 03:36:11,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:36:11,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 86 [2024-11-14 03:36:11,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:36:11,446 INFO L225 Difference]: With dead ends: 345 [2024-11-14 03:36:11,446 INFO L226 Difference]: Without dead ends: 345 [2024-11-14 03:36:11,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:36:11,447 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 0 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:36:11,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 797 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:36:11,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-14 03:36:11,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2024-11-14 03:36:11,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 334 states have (on average 1.18562874251497) internal successors, (396), 338 states have internal predecessors, (396), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 03:36:11,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 409 transitions. [2024-11-14 03:36:11,459 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 409 transitions. Word has length 86 [2024-11-14 03:36:11,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:36:11,459 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 409 transitions. [2024-11-14 03:36:11,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:36:11,460 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 409 transitions. [2024-11-14 03:36:11,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 03:36:11,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:36:11,463 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:36:11,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-14 03:36:11,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:36:11,667 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:36:11,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:36:11,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1308475110, now seen corresponding path program 1 times [2024-11-14 03:36:11,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:36:11,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927319273] [2024-11-14 03:36:11,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:11,668 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 [2024-11-14 03:36:11,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:36:11,670 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:36:11,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:12,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:36:12,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:12,517 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:36:12,517 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:12,701 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:36:12,701 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:36:12,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927319273] [2024-11-14 03:36:12,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927319273] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:12,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1429906798] [2024-11-14 03:36:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:12,702 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:36:12,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:36:12,711 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:36:12,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-14 03:36:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:13,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:36:13,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:13,828 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:36:13,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:13,911 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:36:13,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1429906798] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:13,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117393682] [2024-11-14 03:36:13,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:13,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:36:13,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:36:13,915 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:36:13,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 03:36:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:14,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:36:14,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:14,530 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:36:14,531 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:14,693 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:36:14,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117393682] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:14,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:36:14,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2024-11-14 03:36:14,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061814784] [2024-11-14 03:36:14,694 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:36:14,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:36:14,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:36:14,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:36:14,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:36:14,697 INFO L87 Difference]: Start difference. First operand 345 states and 409 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:36:15,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:36:15,244 INFO L93 Difference]: Finished difference Result 360 states and 431 transitions. [2024-11-14 03:36:15,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:36:15,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 88 [2024-11-14 03:36:15,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:36:15,249 INFO L225 Difference]: With dead ends: 360 [2024-11-14 03:36:15,249 INFO L226 Difference]: Without dead ends: 360 [2024-11-14 03:36:15,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-14 03:36:15,251 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 13 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:36:15,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1577 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:36:15,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-14 03:36:15,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 356. [2024-11-14 03:36:15,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 344 states have (on average 1.2034883720930232) internal successors, (414), 348 states have internal predecessors, (414), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 03:36:15,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 427 transitions. [2024-11-14 03:36:15,268 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 427 transitions. Word has length 88 [2024-11-14 03:36:15,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:36:15,268 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 427 transitions. [2024-11-14 03:36:15,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:36:15,269 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 427 transitions. [2024-11-14 03:36:15,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-14 03:36:15,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:36:15,271 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:36:15,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-14 03:36:15,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-14 03:36:15,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:15,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:36:15,872 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:36:15,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:36:15,872 INFO L85 PathProgramCache]: Analyzing trace with hash 744935544, now seen corresponding path program 2 times [2024-11-14 03:36:15,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:36:15,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942118794] [2024-11-14 03:36:15,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:36:15,873 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 [2024-11-14 03:36:15,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:36:15,875 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:36:15,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:16,626 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:36:16,626 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:36:16,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:36:16,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:16,815 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 03:36:16,815 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:36:17,152 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:36:17,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942118794] [2024-11-14 03:36:17,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942118794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:17,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [119271397] [2024-11-14 03:36:17,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:36:17,153 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:36:17,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:36:17,157 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:36:17,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-14 03:36:18,267 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:36:18,268 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:36:18,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:36:18,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:18,334 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 03:36:18,335 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:36:18,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [119271397] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:18,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904848350] [2024-11-14 03:36:18,462 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:36:18,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:36:18,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:36:18,464 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:36:18,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 03:36:19,139 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:36:19,139 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:36:19,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:36:19,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:19,888 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:36:19,889 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:36:19,889 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:36:19,892 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 [2024-11-14 03:36:20,019 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:36:20,019 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 [2024-11-14 03:36:20,087 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-14 03:36:20,087 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:36:20,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904848350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:36:20,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-14 03:36:20,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 8, 8] total 18 [2024-11-14 03:36:20,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937477845] [2024-11-14 03:36:20,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:36:20,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:36:20,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:36:20,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:36:20,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:36:20,089 INFO L87 Difference]: Start difference. First operand 356 states and 427 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:36:22,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:36:25,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:36:26,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:36:26,665 INFO L93 Difference]: Finished difference Result 443 states and 534 transitions. [2024-11-14 03:36:26,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:36:26,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 94 [2024-11-14 03:36:26,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:36:26,668 INFO L225 Difference]: With dead ends: 443 [2024-11-14 03:36:26,668 INFO L226 Difference]: Without dead ends: 443 [2024-11-14 03:36:26,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-14 03:36:26,670 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 293 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:36:26,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 720 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2024-11-14 03:36:26,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-14 03:36:26,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 358. [2024-11-14 03:36:26,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 346 states have (on average 1.2023121387283238) internal successors, (416), 350 states have internal predecessors, (416), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 03:36:26,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 429 transitions. [2024-11-14 03:36:26,683 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 429 transitions. Word has length 94 [2024-11-14 03:36:26,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:36:26,684 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 429 transitions. [2024-11-14 03:36:26,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:36:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 429 transitions. [2024-11-14 03:36:26,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-14 03:36:26,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:36:26,686 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:36:26,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-14 03:36:26,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:27,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-14 03:36:27,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:36:27,287 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:36:27,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:36:27,288 INFO L85 PathProgramCache]: Analyzing trace with hash 446997541, now seen corresponding path program 1 times [2024-11-14 03:36:27,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:36:27,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353372194] [2024-11-14 03:36:27,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:27,288 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 [2024-11-14 03:36:27,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:36:27,290 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:36:27,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:28,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:36:28,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:28,174 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 03:36:28,174 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:28,554 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:36:28,554 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:36:28,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353372194] [2024-11-14 03:36:28,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353372194] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:28,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [868276644] [2024-11-14 03:36:28,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:28,554 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:36:28,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:36:28,557 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:36:28,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-14 03:36:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:29,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:36:29,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:30,111 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-14 03:36:30,111 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:36:30,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [868276644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:36:30,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:36:30,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 16 [2024-11-14 03:36:30,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258985865] [2024-11-14 03:36:30,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:36:30,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:36:30,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:36:30,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:36:30,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:36:30,114 INFO L87 Difference]: Start difference. First operand 358 states and 429 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:36:32,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:36:34,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:36:36,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:36:38,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:36:38,042 INFO L93 Difference]: Finished difference Result 520 states and 631 transitions. [2024-11-14 03:36:38,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:36:38,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 130 [2024-11-14 03:36:38,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:36:38,049 INFO L225 Difference]: With dead ends: 520 [2024-11-14 03:36:38,049 INFO L226 Difference]: Without dead ends: 520 [2024-11-14 03:36:38,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-14 03:36:38,050 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 512 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:36:38,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 576 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 133 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2024-11-14 03:36:38,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-14 03:36:38,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 448. [2024-11-14 03:36:38,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 434 states have (on average 1.1981566820276497) internal successors, (520), 439 states have internal predecessors, (520), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-14 03:36:38,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 537 transitions. [2024-11-14 03:36:38,065 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 537 transitions. Word has length 130 [2024-11-14 03:36:38,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:36:38,066 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 537 transitions. [2024-11-14 03:36:38,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:36:38,066 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 537 transitions. [2024-11-14 03:36:38,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-14 03:36:38,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:36:38,067 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:36:38,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:38,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-14 03:36:38,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:36:38,468 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:36:38,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:36:38,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1015378573, now seen corresponding path program 1 times [2024-11-14 03:36:38,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:36:38,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231099281] [2024-11-14 03:36:38,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:38,469 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 [2024-11-14 03:36:38,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:36:38,471 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:36:38,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:39,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:36:39,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:39,427 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 03:36:39,427 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:39,840 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:36:39,840 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:36:39,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231099281] [2024-11-14 03:36:39,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231099281] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:39,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [275677805] [2024-11-14 03:36:39,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:39,841 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:36:39,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:36:39,843 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:36:39,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-14 03:36:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:41,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:36:41,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:41,116 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 03:36:41,116 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:41,229 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:36:41,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [275677805] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:41,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414780509] [2024-11-14 03:36:41,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:41,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:36:41,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:36:41,231 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:36:41,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 03:36:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:41,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:36:41,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 03:36:42,040 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:42,402 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:36:42,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414780509] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:42,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:36:42,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 20 [2024-11-14 03:36:42,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216870956] [2024-11-14 03:36:42,403 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:36:42,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 03:36:42,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:36:42,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 03:36:42,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2024-11-14 03:36:42,405 INFO L87 Difference]: Start difference. First operand 448 states and 537 transitions. Second operand has 20 states, 20 states have (on average 7.45) internal successors, (149), 20 states have internal predecessors, (149), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:36:43,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:36:43,309 INFO L93 Difference]: Finished difference Result 461 states and 554 transitions. [2024-11-14 03:36:43,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 03:36:43,310 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.45) internal successors, (149), 20 states have internal predecessors, (149), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 138 [2024-11-14 03:36:43,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:36:43,314 INFO L225 Difference]: With dead ends: 461 [2024-11-14 03:36:43,314 INFO L226 Difference]: Without dead ends: 455 [2024-11-14 03:36:43,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 831 GetRequests, 804 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=292, Invalid=520, Unknown=0, NotChecked=0, Total=812 [2024-11-14 03:36:43,315 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 8 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2651 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:36:43,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2651 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:36:43,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-14 03:36:43,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2024-11-14 03:36:43,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 441 states have (on average 1.1950113378684808) internal successors, (527), 446 states have internal predecessors, (527), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-14 03:36:43,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 544 transitions. [2024-11-14 03:36:43,331 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 544 transitions. Word has length 138 [2024-11-14 03:36:43,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:36:43,332 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 544 transitions. [2024-11-14 03:36:43,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.45) internal successors, (149), 20 states have internal predecessors, (149), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:36:43,332 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 544 transitions. [2024-11-14 03:36:43,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-14 03:36:43,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:36:43,334 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:36:43,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-14 03:36:43,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-11-14 03:36:43,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:43,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:36:43,935 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:36:43,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:36:43,935 INFO L85 PathProgramCache]: Analyzing trace with hash 367490369, now seen corresponding path program 2 times [2024-11-14 03:36:43,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:36:43,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252257241] [2024-11-14 03:36:43,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:36:43,936 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 [2024-11-14 03:36:43,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:36:43,938 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:36:43,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:44,782 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:36:44,782 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:36:44,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:36:44,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:45,273 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 03:36:45,274 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:46,637 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 03:36:46,638 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:36:46,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252257241] [2024-11-14 03:36:46,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252257241] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:46,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [879729895] [2024-11-14 03:36:46,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:36:46,638 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:36:46,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:36:46,641 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:36:46,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-14 03:36:49,090 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:36:49,090 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:36:49,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:36:49,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 03:36:49,214 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:49,422 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 03:36:49,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [879729895] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:49,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759715204] [2024-11-14 03:36:49,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:36:49,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:36:49,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:36:49,425 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:36:49,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 03:36:50,327 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:36:50,328 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:36:50,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:36:50,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:36:50,514 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:51,292 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:36:51,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759715204] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:51,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:36:51,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 9, 9] total 35 [2024-11-14 03:36:51,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098083697] [2024-11-14 03:36:51,293 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:36:51,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-14 03:36:51,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:36:51,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-14 03:36:51,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=862, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 03:36:51,296 INFO L87 Difference]: Start difference. First operand 455 states and 544 transitions. Second operand has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 35 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:36:55,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:36:55,917 INFO L93 Difference]: Finished difference Result 489 states and 599 transitions. [2024-11-14 03:36:55,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-14 03:36:55,918 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 35 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 145 [2024-11-14 03:36:55,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:36:55,920 INFO L225 Difference]: With dead ends: 489 [2024-11-14 03:36:55,921 INFO L226 Difference]: Without dead ends: 483 [2024-11-14 03:36:55,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 904 GetRequests, 831 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1393, Invalid=4157, Unknown=0, NotChecked=0, Total=5550 [2024-11-14 03:36:55,923 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 44 mSDsluCounter, 4469 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 4736 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:36:55,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 4736 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 03:36:55,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-14 03:36:55,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 479. [2024-11-14 03:36:55,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 465 states have (on average 1.2086021505376343) internal successors, (562), 470 states have internal predecessors, (562), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-14 03:36:55,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 579 transitions. [2024-11-14 03:36:55,939 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 579 transitions. Word has length 145 [2024-11-14 03:36:55,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:36:55,940 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 579 transitions. [2024-11-14 03:36:55,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 35 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:36:55,940 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 579 transitions. [2024-11-14 03:36:55,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-14 03:36:55,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:36:55,942 INFO L215 NwaCegarLoop]: trace histogram [39, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:36:55,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 03:36:56,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2024-11-14 03:36:56,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 03:36:56,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:36:56,543 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:36:56,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:36:56,544 INFO L85 PathProgramCache]: Analyzing trace with hash 193794241, now seen corresponding path program 3 times [2024-11-14 03:36:56,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:36:56,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434662866] [2024-11-14 03:36:56,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:36:56,545 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 [2024-11-14 03:36:56,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:36:56,546 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 03:36:56,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-14 03:37:04,162 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-14 03:37:04,163 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:37:04,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 03:37:04,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:37:04,892 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-14 03:37:04,892 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:37:07,208 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-14 03:37:07,209 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:37:07,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434662866] [2024-11-14 03:37:07,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434662866] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:37:07,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [208828430] [2024-11-14 03:37:07,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:37:07,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:37:07,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:37:07,211 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:37:07,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-14 03:39:55,213 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-14 03:39:55,213 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:39:55,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 03:39:55,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:39:55,520 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-14 03:39:55,520 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:39:56,027 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-14 03:39:56,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [208828430] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:39:56,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768486914] [2024-11-14 03:39:56,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:39:56,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:39:56,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:39:56,030 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:39:56,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef0b8-2fd0-4780-b7b9-e2e0556e766f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process