./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-2.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_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:37:14,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:37:14,115 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-14 03:37:14,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:37:14,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:37:14,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:37:14,162 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:37:14,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:37:14,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:37:14,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:37:14,163 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:37:14,163 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:37:14,163 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:37:14,163 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:37:14,163 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:37:14,163 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:37:14,163 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:37:14,164 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:37:14,164 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:37:14,164 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:37:14,164 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:37:14,166 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:37:14,168 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:37:14,168 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:37:14,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:37:14,169 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:37:14,169 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:37:14,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:37:14,169 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:37:14,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:37:14,169 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:37:14,170 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:37:14,170 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:37:14,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:37:14,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:37:14,170 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:37:14,170 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:37:14,170 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:37:14,170 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:37:14,170 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:37:14,170 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:37:14,170 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:37:14,171 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:37:14,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:37:14,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:37:14,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:37:14,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:37:14,171 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:37:14,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:37:14,172 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:37:14,172 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:37:14,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:37:14,173 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_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-11-14 03:37:14,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:37:14,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:37:14,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:37:14,468 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:37:14,468 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:37:14,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-2.i Unable to find full path for "g++" [2024-11-14 03:37:16,381 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:37:16,722 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:37:16,722 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-2.i [2024-11-14 03:37:16,739 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/data/d7dfd7018/800b280f278c425093ea3714ae17999e/FLAGc1e5e1c71 [2024-11-14 03:37:16,760 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/data/d7dfd7018/800b280f278c425093ea3714ae17999e [2024-11-14 03:37:16,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:37:16,768 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:37:16,770 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:37:16,770 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:37:16,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:37:16,777 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:37:16" (1/1) ... [2024-11-14 03:37:16,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@282e422a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:16, skipping insertion in model container [2024-11-14 03:37:16,780 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:37:16" (1/1) ... [2024-11-14 03:37:16,842 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:37:17,411 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:37:17,444 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:37:17,448 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 03:37:17,452 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 03:37:17,466 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 03:37:17,507 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 03:37:17,507 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 03:37:17,510 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 03:37:17,511 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 03:37:17,513 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 03:37:17,516 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 03:37:17,518 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 03:37:17,519 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 03:37:17,520 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 03:37:17,525 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 03:37:17,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:37:17,549 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 03:37:17,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@194b9165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:17, skipping insertion in model container [2024-11-14 03:37:17,553 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:37:17,554 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-14 03:37:17,555 INFO L158 Benchmark]: Toolchain (without parser) took 789.24ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 70.4MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:37:17,556 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:37:17,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 783.69ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 70.4MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:37:17,560 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 783.69ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 70.4MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 831]: 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_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:37:20,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:37:20,211 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-14 03:37:20,221 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:37:20,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:37:20,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:37:20,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:37:20,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:37:20,245 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:37:20,245 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:37:20,245 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:37:20,245 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:37:20,245 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:37:20,245 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:37:20,246 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:37:20,246 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:37:20,246 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:37:20,246 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:37:20,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:37:20,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:37:20,246 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:37:20,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:37:20,247 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:37:20,247 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:37:20,247 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:37:20,247 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:37:20,247 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:37:20,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:37:20,247 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:37:20,247 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:37:20,247 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:37:20,247 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:37:20,248 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:37:20,248 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:37:20,248 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:37:20,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:37:20,248 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:37:20,248 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:37:20,248 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:37:20,248 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:37:20,248 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:37:20,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:37:20,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:37:20,249 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:37:20,249 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:37:20,249 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:37:20,249 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:37:20,249 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:37:20,249 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_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-11-14 03:37:20,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:37:20,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:37:20,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:37:20,565 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:37:20,565 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:37:20,566 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-2.i Unable to find full path for "g++" [2024-11-14 03:37:22,455 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:37:22,889 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:37:22,890 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test2-2.i [2024-11-14 03:37:22,916 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/data/1fdbbb564/50a4d958d4914fa4bd44b5142fb089ba/FLAGd129d54fa [2024-11-14 03:37:22,941 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/data/1fdbbb564/50a4d958d4914fa4bd44b5142fb089ba [2024-11-14 03:37:22,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:37:22,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:37:22,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:37:22,950 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:37:22,955 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:37:22,956 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:37:22" (1/1) ... [2024-11-14 03:37:22,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69d0e129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:22, skipping insertion in model container [2024-11-14 03:37:22,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:37:22" (1/1) ... [2024-11-14 03:37:23,025 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:37:23,662 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 03:37:23,723 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 03:37:23,732 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 03:37:23,741 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 03:37:23,756 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 03:37:23,803 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 03:37:23,804 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 03:37:23,807 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 03:37:23,807 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 03:37:23,809 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 03:37:23,812 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 03:37:23,814 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 03:37:23,815 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 03:37:23,816 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 03:37:23,822 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 03:37:23,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:37:23,850 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-14 03:37:23,863 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:37:23,900 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 03:37:23,918 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 03:37:23,920 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 03:37:23,925 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 03:37:23,931 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:37:23,958 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 03:37:23,962 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:37:23,965 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 03:37:23,968 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 03:37:23,970 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 03:37:23,972 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 03:37:23,973 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 03:37:23,974 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 03:37:23,975 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 03:37:23,979 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 03:37:23,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:37:23,985 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:37:24,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:37:24,170 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:37:24,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:24 WrapperNode [2024-11-14 03:37:24,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:37:24,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:37:24,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:37:24,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:37:24,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:24" (1/1) ... [2024-11-14 03:37:24,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:24" (1/1) ... [2024-11-14 03:37:24,269 INFO L138 Inliner]: procedures = 210, calls = 273, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1005 [2024-11-14 03:37:24,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:37:24,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:37:24,270 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:37:24,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:37:24,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:24" (1/1) ... [2024-11-14 03:37:24,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:24" (1/1) ... [2024-11-14 03:37:24,328 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:24" (1/1) ... [2024-11-14 03:37:24,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:24" (1/1) ... [2024-11-14 03:37:24,372 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:24" (1/1) ... [2024-11-14 03:37:24,381 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:24" (1/1) ... [2024-11-14 03:37:24,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:24" (1/1) ... [2024-11-14 03:37:24,388 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:24" (1/1) ... [2024-11-14 03:37:24,395 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:37:24,396 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:37:24,397 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:37:24,397 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:37:24,398 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:24" (1/1) ... [2024-11-14 03:37:24,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:37:24,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:37:24,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:37:24,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:37:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 03:37:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 03:37:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 03:37:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 03:37:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:37:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:37:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 03:37:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:37:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:37:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:37:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:37:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:37:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:37:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:37:24,751 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:37:24,754 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:37:31,758 INFO L? ?]: Removed 128 outVars from TransFormulas that were not future-live. [2024-11-14 03:37:31,759 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:37:31,772 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:37:31,772 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-11-14 03:37:31,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:37:31 BoogieIcfgContainer [2024-11-14 03:37:31,773 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:37:31,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:37:31,776 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:37:31,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:37:31,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:37:22" (1/3) ... [2024-11-14 03:37:31,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a49a0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:37:31, skipping insertion in model container [2024-11-14 03:37:31,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:24" (2/3) ... [2024-11-14 03:37:31,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a49a0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:37:31, skipping insertion in model container [2024-11-14 03:37:31,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:37:31" (3/3) ... [2024-11-14 03:37:31,783 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_nondet_test2-2.i [2024-11-14 03:37:31,798 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:37:31,799 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_nondet_test2-2.i that has 2 procedures, 199 locations, 1 initial locations, 36 loop locations, and 2 error locations. [2024-11-14 03:37:31,839 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:37:31,856 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;@76a1a53b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:37:31,856 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:37:31,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 199 states, 192 states have (on average 1.6666666666666667) internal successors, (320), 194 states have internal predecessors, (320), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:37:31,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:37:31,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:31,867 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:37:31,868 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:37:31,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:31,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1172645, now seen corresponding path program 1 times [2024-11-14 03:37:31,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:37:31,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824162587] [2024-11-14 03:37:31,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:31,885 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 03:37:31,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:37:31,887 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:31,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:32,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:37:32,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:37:32,180 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 03:37:32,188 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 03:37:32,189 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:37:32,189 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:37:32,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824162587] [2024-11-14 03:37:32,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824162587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:37:32,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:37:32,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:37:32,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216735701] [2024-11-14 03:37:32,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:37:32,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:37:32,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:37:32,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:37:32,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-14 03:37:32,230 INFO L87 Difference]: Start difference. First operand has 199 states, 192 states have (on average 1.6666666666666667) internal successors, (320), 194 states have internal predecessors, (320), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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 03:37:34,725 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 03:37:35,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:35,015 INFO L93 Difference]: Finished difference Result 296 states and 385 transitions. [2024-11-14 03:37:35,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:37:35,025 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 03:37:35,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:35,036 INFO L225 Difference]: With dead ends: 296 [2024-11-14 03:37:35,037 INFO L226 Difference]: Without dead ends: 293 [2024-11-14 03:37:35,039 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 03:37:35,044 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 125 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 386 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:37:35,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 483 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 386 Unchecked, 2.7s Time] [2024-11-14 03:37:35,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-14 03:37:35,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 196. [2024-11-14 03:37:35,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 190 states have (on average 1.3) internal successors, (247), 191 states have internal predecessors, (247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:37:35,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 253 transitions. [2024-11-14 03:37:35,100 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 253 transitions. Word has length 4 [2024-11-14 03:37:35,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:35,101 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 253 transitions. [2024-11-14 03:37:35,101 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 03:37:35,101 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 253 transitions. [2024-11-14 03:37:35,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 03:37:35,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:35,104 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:37:35,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:35,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:35,305 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:37:35,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:35,306 INFO L85 PathProgramCache]: Analyzing trace with hash -599921513, now seen corresponding path program 1 times [2024-11-14 03:37:35,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:37:35,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482158885] [2024-11-14 03:37:35,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:35,311 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 03:37:35,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:37:35,313 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:35,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:35,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:37:35,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:37:35,754 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 03:37:35,754 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:37:35,755 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:37:35,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482158885] [2024-11-14 03:37:35,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482158885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:37:35,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:37:35,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:37:35,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737667750] [2024-11-14 03:37:35,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:37:35,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:37:35,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:37:35,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:37:35,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:37:35,761 INFO L87 Difference]: Start difference. First operand 196 states and 253 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 03:37:36,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:36,915 INFO L93 Difference]: Finished difference Result 318 states and 410 transitions. [2024-11-14 03:37:36,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:37:36,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2024-11-14 03:37:36,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:36,922 INFO L225 Difference]: With dead ends: 318 [2024-11-14 03:37:36,922 INFO L226 Difference]: Without dead ends: 318 [2024-11-14 03:37:36,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:37:36,923 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 148 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:37:36,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 467 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:37:36,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-14 03:37:36,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 285. [2024-11-14 03:37:36,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 279 states have (on average 1.3010752688172043) internal successors, (363), 280 states have internal predecessors, (363), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:37:36,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 369 transitions. [2024-11-14 03:37:36,957 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 369 transitions. Word has length 14 [2024-11-14 03:37:36,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:36,958 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 369 transitions. [2024-11-14 03:37:36,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 03:37:36,958 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 369 transitions. [2024-11-14 03:37:36,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 03:37:36,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:36,958 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:37:36,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:37,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:37,159 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:37:37,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:37,160 INFO L85 PathProgramCache]: Analyzing trace with hash -598074471, now seen corresponding path program 1 times [2024-11-14 03:37:37,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:37:37,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372102623] [2024-11-14 03:37:37,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:37,161 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 03:37:37,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:37:37,162 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:37,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:37,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:37:37,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:37:37,621 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 03:37:37,621 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 03:37:37,621 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:37:37,622 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:37:37,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372102623] [2024-11-14 03:37:37,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372102623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:37:37,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:37:37,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:37:37,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033395511] [2024-11-14 03:37:37,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:37:37,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:37:37,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:37:37,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:37:37,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-14 03:37:37,624 INFO L87 Difference]: Start difference. First operand 285 states and 369 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 03:37:39,858 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 03:37:40,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:37:40,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:40,930 INFO L93 Difference]: Finished difference Result 363 states and 468 transitions. [2024-11-14 03:37:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:37:40,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-11-14 03:37:40,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:40,938 INFO L225 Difference]: With dead ends: 363 [2024-11-14 03:37:40,939 INFO L226 Difference]: Without dead ends: 361 [2024-11-14 03:37:40,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 03:37:40,940 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 90 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 355 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:37:40,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 480 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 1 Unknown, 355 Unchecked, 3.3s Time] [2024-11-14 03:37:40,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-14 03:37:40,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 334. [2024-11-14 03:37:40,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 328 states have (on average 1.298780487804878) internal successors, (426), 329 states have internal predecessors, (426), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:37:40,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 432 transitions. [2024-11-14 03:37:40,970 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 432 transitions. Word has length 14 [2024-11-14 03:37:40,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:40,970 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 432 transitions. [2024-11-14 03:37:40,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 03:37:40,970 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 432 transitions. [2024-11-14 03:37:40,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 03:37:40,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:40,971 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] [2024-11-14 03:37:40,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:41,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:41,171 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:37:41,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:41,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1446187696, now seen corresponding path program 1 times [2024-11-14 03:37:41,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:37:41,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314457077] [2024-11-14 03:37:41,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:41,172 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 03:37:41,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:37:41,174 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:41,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:41,343 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:37:41,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:37:41,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:37:41,490 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:37:41,491 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:37:41,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314457077] [2024-11-14 03:37:41,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314457077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:37:41,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:37:41,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:37:41,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545502996] [2024-11-14 03:37:41,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:37:41,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:37:41,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:37:41,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:37:41,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:37:41,492 INFO L87 Difference]: Start difference. First operand 334 states and 432 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 03:37:43,841 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 03:37:46,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:46,719 INFO L93 Difference]: Finished difference Result 369 states and 474 transitions. [2024-11-14 03:37:46,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:37:46,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2024-11-14 03:37:46,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:46,723 INFO L225 Difference]: With dead ends: 369 [2024-11-14 03:37:46,723 INFO L226 Difference]: Without dead ends: 365 [2024-11-14 03:37:46,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 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 03:37:46,724 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 150 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:37:46,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 738 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2024-11-14 03:37:46,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-14 03:37:46,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 332. [2024-11-14 03:37:46,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 326 states have (on average 1.2975460122699387) internal successors, (423), 327 states have internal predecessors, (423), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:37:46,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 429 transitions. [2024-11-14 03:37:46,738 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 429 transitions. Word has length 23 [2024-11-14 03:37:46,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:46,738 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 429 transitions. [2024-11-14 03:37:46,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 03:37:46,739 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 429 transitions. [2024-11-14 03:37:46,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-14 03:37:46,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:46,740 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:37:46,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:46,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:46,941 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:37:46,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:46,942 INFO L85 PathProgramCache]: Analyzing trace with hash 757521772, now seen corresponding path program 1 times [2024-11-14 03:37:46,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:37:46,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093814844] [2024-11-14 03:37:46,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:46,942 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 03:37:46,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:37:46,949 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:46,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:47,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:37:47,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:37:47,227 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 03:37:47,230 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:37:47,230 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:37:47,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093814844] [2024-11-14 03:37:47,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093814844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:37:47,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:37:47,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:37:47,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011302012] [2024-11-14 03:37:47,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:37:47,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:37:47,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:37:47,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:37:47,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:37:47,232 INFO L87 Difference]: Start difference. First operand 332 states and 429 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 03:37:47,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:47,383 INFO L93 Difference]: Finished difference Result 341 states and 414 transitions. [2024-11-14 03:37:47,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:37:47,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2024-11-14 03:37:47,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:47,385 INFO L225 Difference]: With dead ends: 341 [2024-11-14 03:37:47,385 INFO L226 Difference]: Without dead ends: 341 [2024-11-14 03:37:47,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 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 03:37:47,386 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 33 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:37:47,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 647 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:37:47,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-14 03:37:47,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-11-14 03:37:47,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 335 states have (on average 1.217910447761194) internal successors, (408), 336 states have internal predecessors, (408), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:37:47,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 414 transitions. [2024-11-14 03:37:47,398 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 414 transitions. Word has length 49 [2024-11-14 03:37:47,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:47,398 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 414 transitions. [2024-11-14 03:37:47,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 03:37:47,399 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 414 transitions. [2024-11-14 03:37:47,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-14 03:37:47,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:47,400 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] [2024-11-14 03:37:47,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:47,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:47,605 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:37:47,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:47,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1358854108, now seen corresponding path program 1 times [2024-11-14 03:37:47,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:37:47,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919731684] [2024-11-14 03:37:47,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:47,606 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 03:37:47,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:37:47,608 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:47,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:47,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:37:47,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:37:47,998 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 03:37:47,999 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:37:47,999 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:37:47,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919731684] [2024-11-14 03:37:47,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919731684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:37:47,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:37:47,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:37:48,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467052076] [2024-11-14 03:37:48,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:37:48,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:37:48,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:37:48,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:37:48,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:37:48,001 INFO L87 Difference]: Start difference. First operand 341 states and 414 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 03:37:48,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:48,134 INFO L93 Difference]: Finished difference Result 323 states and 384 transitions. [2024-11-14 03:37:48,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:37:48,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 49 [2024-11-14 03:37:48,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:48,136 INFO L225 Difference]: With dead ends: 323 [2024-11-14 03:37:48,136 INFO L226 Difference]: Without dead ends: 323 [2024-11-14 03:37:48,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 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 03:37:48,137 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 8 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 647 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 03:37:48,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 647 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:37:48,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-14 03:37:48,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-11-14 03:37:48,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 317 states have (on average 1.1924290220820188) internal successors, (378), 318 states have internal predecessors, (378), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:37:48,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 384 transitions. [2024-11-14 03:37:48,150 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 384 transitions. Word has length 49 [2024-11-14 03:37:48,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:48,150 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 384 transitions. [2024-11-14 03:37:48,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 03:37:48,151 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 384 transitions. [2024-11-14 03:37:48,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-14 03:37:48,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:48,152 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] [2024-11-14 03:37:48,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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)] Forceful destruction successful, exit code 0 [2024-11-14 03:37:48,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:48,353 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:37:48,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:48,353 INFO L85 PathProgramCache]: Analyzing trace with hash 896748322, now seen corresponding path program 1 times [2024-11-14 03:37:48,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:37:48,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607628575] [2024-11-14 03:37:48,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:48,354 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:37:48,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:37:48,356 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:48,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:48,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 03:37:48,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:37:48,667 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:37:48,668 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:37:48,668 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:37:48,676 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 03:37:48,800 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:37:48,801 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 03:37:48,920 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 03:37:48,921 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:37:48,921 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:37:48,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607628575] [2024-11-14 03:37:48,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607628575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:37:48,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:37:48,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:37:48,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201305776] [2024-11-14 03:37:48,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:37:48,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:37:48,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:37:48,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:37:48,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:37:48,925 INFO L87 Difference]: Start difference. First operand 323 states and 384 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 03:37:53,897 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 03:37:57,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:57,013 INFO L93 Difference]: Finished difference Result 283 states and 342 transitions. [2024-11-14 03:37:57,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:37:57,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 49 [2024-11-14 03:37:57,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:57,015 INFO L225 Difference]: With dead ends: 283 [2024-11-14 03:37:57,015 INFO L226 Difference]: Without dead ends: 280 [2024-11-14 03:37:57,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 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 03:37:57,016 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 52 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:37:57,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 816 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2024-11-14 03:37:57,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-14 03:37:57,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2024-11-14 03:37:57,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 274 states have (on average 1.2153284671532847) internal successors, (333), 275 states have internal predecessors, (333), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:37:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 339 transitions. [2024-11-14 03:37:57,030 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 339 transitions. Word has length 49 [2024-11-14 03:37:57,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:57,030 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 339 transitions. [2024-11-14 03:37:57,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 03:37:57,030 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 339 transitions. [2024-11-14 03:37:57,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:37:57,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:57,036 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] [2024-11-14 03:37:57,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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)] Forceful destruction successful, exit code 0 [2024-11-14 03:37:57,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:57,241 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:37:57,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:57,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1497807628, now seen corresponding path program 1 times [2024-11-14 03:37:57,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:37:57,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [724008116] [2024-11-14 03:37:57,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:57,242 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 03:37:57,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:37:57,244 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:57,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:57,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:37:57,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:37:57,913 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 03:37:57,913 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:37:57,914 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:37:57,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [724008116] [2024-11-14 03:37:57,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [724008116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:37:57,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:37:57,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:37:57,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411738242] [2024-11-14 03:37:57,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:37:57,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:37:57,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:37:57,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:37:57,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:37:57,919 INFO L87 Difference]: Start difference. First operand 280 states and 339 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:37:58,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:58,075 INFO L93 Difference]: Finished difference Result 286 states and 329 transitions. [2024-11-14 03:37:58,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:37:58,076 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2024-11-14 03:37:58,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:58,078 INFO L225 Difference]: With dead ends: 286 [2024-11-14 03:37:58,078 INFO L226 Difference]: Without dead ends: 286 [2024-11-14 03:37:58,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 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 03:37:58,079 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 30 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 605 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 03:37:58,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 605 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:37:58,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-14 03:37:58,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2024-11-14 03:37:58,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 280 states have (on average 1.1535714285714285) internal successors, (323), 281 states have internal predecessors, (323), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:37:58,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 329 transitions. [2024-11-14 03:37:58,091 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 329 transitions. Word has length 85 [2024-11-14 03:37:58,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:58,093 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 329 transitions. [2024-11-14 03:37:58,094 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:37:58,094 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 329 transitions. [2024-11-14 03:37:58,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:37:58,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:58,098 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] [2024-11-14 03:37:58,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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)] Forceful destruction successful, exit code 0 [2024-11-14 03:37:58,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:58,299 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:37:58,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:58,299 INFO L85 PathProgramCache]: Analyzing trace with hash 401377408, now seen corresponding path program 1 times [2024-11-14 03:37:58,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:37:58,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180815329] [2024-11-14 03:37:58,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:58,300 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 03:37:58,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:37:58,302 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:58,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:58,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:37:58,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:37:58,960 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 03:37:58,960 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:37:58,960 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:37:58,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180815329] [2024-11-14 03:37:58,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180815329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:37:58,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:37:58,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:37:58,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042782603] [2024-11-14 03:37:58,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:37:58,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:37:58,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:37:58,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:37:58,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:37:58,963 INFO L87 Difference]: Start difference. First operand 286 states and 329 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, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:37:59,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:59,018 INFO L93 Difference]: Finished difference Result 289 states and 333 transitions. [2024-11-14 03:37:59,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:37:59,019 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, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 85 [2024-11-14 03:37:59,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:59,021 INFO L225 Difference]: With dead ends: 289 [2024-11-14 03:37:59,022 INFO L226 Difference]: Without dead ends: 289 [2024-11-14 03:37:59,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 82 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 03:37:59,023 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 0 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:37:59,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 668 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:37:59,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-14 03:37:59,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2024-11-14 03:37:59,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 282 states have (on average 1.1560283687943262) internal successors, (326), 284 states have internal predecessors, (326), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:37:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 333 transitions. [2024-11-14 03:37:59,033 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 333 transitions. Word has length 85 [2024-11-14 03:37:59,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:59,034 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 333 transitions. [2024-11-14 03:37:59,034 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, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:37:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 333 transitions. [2024-11-14 03:37:59,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 03:37:59,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:59,037 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] [2024-11-14 03:37:59,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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)] Ended with exit code 0 [2024-11-14 03:37:59,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:59,237 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:37:59,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:59,238 INFO L85 PathProgramCache]: Analyzing trace with hash 834010526, now seen corresponding path program 1 times [2024-11-14 03:37:59,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:37:59,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477708287] [2024-11-14 03:37:59,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:59,238 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 03:37:59,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:37:59,240 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:37:59,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 (11)] Waiting until timeout for monitored process [2024-11-14 03:37:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:59,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:37:59,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:37:59,999 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 03:37:59,999 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:00,201 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 03:38:00,202 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:38:00,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477708287] [2024-11-14 03:38:00,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477708287] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:00,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1684224691] [2024-11-14 03:38:00,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:38:00,203 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:38:00,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:38:00,205 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:38:00,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-14 03:38:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:38:00,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:38:00,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:01,398 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 03:38:01,398 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:38:01,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1684224691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:38:01,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:38:01,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-14 03:38:01,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974579216] [2024-11-14 03:38:01,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:38:01,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:38:01,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:38:01,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:38:01,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:38:01,401 INFO L87 Difference]: Start difference. First operand 289 states and 333 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:38:04,180 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 03:38:06,184 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 03:38:08,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:38:08,352 INFO L93 Difference]: Finished difference Result 313 states and 373 transitions. [2024-11-14 03:38:08,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:38:08,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2024-11-14 03:38:08,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:38:08,356 INFO L225 Difference]: With dead ends: 313 [2024-11-14 03:38:08,356 INFO L226 Difference]: Without dead ends: 313 [2024-11-14 03:38:08,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:38:08,357 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 386 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:38:08,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 372 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2024-11-14 03:38:08,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-14 03:38:08,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 244. [2024-11-14 03:38:08,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 237 states have (on average 1.1645569620253164) internal successors, (276), 239 states have internal predecessors, (276), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:38:08,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 283 transitions. [2024-11-14 03:38:08,365 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 283 transitions. Word has length 87 [2024-11-14 03:38:08,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:38:08,365 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 283 transitions. [2024-11-14 03:38:08,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:38:08,366 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 283 transitions. [2024-11-14 03:38:08,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-14 03:38:08,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:38:08,367 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:38:08,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-14 03:38:08,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 (11)] Ended with exit code 0 [2024-11-14 03:38:08,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:38:08,768 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:38:08,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:38:08,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1921295947, now seen corresponding path program 1 times [2024-11-14 03:38:08,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:38:08,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176221506] [2024-11-14 03:38:08,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:38:08,769 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 03:38:08,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:38:08,770 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:38:08,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:38:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:38:09,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:38:09,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:09,430 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:38:09,430 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:09,587 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:38:09,587 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:38:09,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176221506] [2024-11-14 03:38:09,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176221506] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:09,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1957426420] [2024-11-14 03:38:09,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:38:09,588 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:38:09,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:38:09,590 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:38:09,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-14 03:38:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:38:10,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:38:10,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:10,827 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:38:10,827 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:10,905 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:38:10,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1957426420] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:10,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223465906] [2024-11-14 03:38:10,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:38:10,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:38:10,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:38:10,908 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:38:10,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 03:38:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:38:11,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:38:11,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:11,624 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:38:11,624 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:38:11,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223465906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:38:11,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-14 03:38:11,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5, 5] total 10 [2024-11-14 03:38:11,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613156738] [2024-11-14 03:38:11,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:38:11,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:38:11,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:38:11,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:38:11,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:38:11,626 INFO L87 Difference]: Start difference. First operand 244 states and 283 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:38:14,396 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 03:38:16,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:38:18,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:38:19,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:38:19,864 INFO L93 Difference]: Finished difference Result 246 states and 285 transitions. [2024-11-14 03:38:19,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:38:19,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 96 [2024-11-14 03:38:19,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:38:19,869 INFO L225 Difference]: With dead ends: 246 [2024-11-14 03:38:19,869 INFO L226 Difference]: Without dead ends: 246 [2024-11-14 03:38:19,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 467 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:38:19,870 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 200 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:38:19,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 394 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2024-11-14 03:38:19,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-14 03:38:19,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 245. [2024-11-14 03:38:19,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 238 states have (on average 1.1638655462184875) internal successors, (277), 240 states have internal predecessors, (277), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:38:19,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 284 transitions. [2024-11-14 03:38:19,879 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 284 transitions. Word has length 96 [2024-11-14 03:38:19,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:38:19,879 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 284 transitions. [2024-11-14 03:38:19,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:38:19,880 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 284 transitions. [2024-11-14 03:38:19,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-14 03:38:19,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:38:19,882 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:38:19,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:38:20,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 03:38:20,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-14 03:38:20,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:38:20,483 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:38:20,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:38:20,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1923142989, now seen corresponding path program 1 times [2024-11-14 03:38:20,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:38:20,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884593222] [2024-11-14 03:38:20,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:38:20,484 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 03:38:20,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:38:20,488 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:38:20,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:38:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:38:21,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:38:21,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:21,321 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:38:21,321 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:21,449 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:38:21,450 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:38:21,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884593222] [2024-11-14 03:38:21,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884593222] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:21,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [63699576] [2024-11-14 03:38:21,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:38:21,450 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:38:21,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:38:21,453 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:38:21,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-14 03:38:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:38:22,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:38:22,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:22,635 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:38:22,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:22,720 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:38:22,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [63699576] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:22,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381021883] [2024-11-14 03:38:22,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:38:22,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:38:22,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:38:22,723 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:38:22,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 03:38:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:38:23,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:38:23,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:23,421 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:38:23,421 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:23,614 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:38:23,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381021883] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:23,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:38:23,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2024-11-14 03:38:23,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028522661] [2024-11-14 03:38:23,614 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:38:23,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:38:23,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:38:23,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:38:23,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:38:23,616 INFO L87 Difference]: Start difference. First operand 245 states and 284 transitions. Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:38:24,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:38:24,062 INFO L93 Difference]: Finished difference Result 260 states and 306 transitions. [2024-11-14 03:38:24,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:38:24,063 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 96 [2024-11-14 03:38:24,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:38:24,064 INFO L225 Difference]: With dead ends: 260 [2024-11-14 03:38:24,064 INFO L226 Difference]: Without dead ends: 260 [2024-11-14 03:38:24,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-14 03:38:24,065 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 13 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:38:24,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1307 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:38:24,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-14 03:38:24,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 256. [2024-11-14 03:38:24,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 248 states have (on average 1.189516129032258) internal successors, (295), 250 states have internal predecessors, (295), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:38:24,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 302 transitions. [2024-11-14 03:38:24,073 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 302 transitions. Word has length 96 [2024-11-14 03:38:24,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:38:24,074 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 302 transitions. [2024-11-14 03:38:24,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:38:24,074 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 302 transitions. [2024-11-14 03:38:24,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-14 03:38:24,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:38:24,075 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] [2024-11-14 03:38:24,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:38:24,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-14 03:38:24,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 03:38:24,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:38:24,677 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:38:24,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:38:24,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1358762283, now seen corresponding path program 2 times [2024-11-14 03:38:24,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:38:24,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248341796] [2024-11-14 03:38:24,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:38:24,678 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 03:38:24,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:38:24,679 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:38:24,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 (19)] Waiting until timeout for monitored process [2024-11-14 03:38:25,518 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:38:25,518 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:38:25,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:38:25,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:25,697 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:38:25,697 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:26,018 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:38:26,018 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:38:26,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248341796] [2024-11-14 03:38:26,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248341796] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:26,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1102669166] [2024-11-14 03:38:26,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:38:26,018 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:38:26,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:38:26,020 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:38:26,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-14 03:38:27,287 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:38:27,287 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:38:27,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:38:27,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:27,341 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:38:27,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:38:27,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1102669166] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:27,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758908819] [2024-11-14 03:38:27,460 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:38:27,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:38:27,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:38:27,463 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:38:27,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 03:38:28,387 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:38:28,387 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:38:28,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:38:28,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:29,295 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:38:29,296 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:38:29,297 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:38:29,299 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 03:38:29,517 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:38:29,517 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 03:38:29,613 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-14 03:38:29,613 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:38:29,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758908819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:38:29,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-14 03:38:29,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 8, 8] total 18 [2024-11-14 03:38:29,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016016886] [2024-11-14 03:38:29,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:38:29,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:38:29,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:38:29,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:38:29,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:38:29,618 INFO L87 Difference]: Start difference. First operand 256 states and 302 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:38:32,210 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 03:38:34,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:38:34,344 INFO L93 Difference]: Finished difference Result 318 states and 370 transitions. [2024-11-14 03:38:34,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:38:34,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 102 [2024-11-14 03:38:34,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:38:34,346 INFO L225 Difference]: With dead ends: 318 [2024-11-14 03:38:34,346 INFO L226 Difference]: Without dead ends: 318 [2024-11-14 03:38:34,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-14 03:38:34,347 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 240 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:38:34,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 584 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-11-14 03:38:34,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-14 03:38:34,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 258. [2024-11-14 03:38:34,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 250 states have (on average 1.188) internal successors, (297), 252 states have internal predecessors, (297), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:38:34,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 304 transitions. [2024-11-14 03:38:34,356 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 304 transitions. Word has length 102 [2024-11-14 03:38:34,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:38:34,357 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 304 transitions. [2024-11-14 03:38:34,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:38:34,357 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 304 transitions. [2024-11-14 03:38:34,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-14 03:38:34,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:38:34,359 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] [2024-11-14 03:38:34,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 (19)] Ended with exit code 0 [2024-11-14 03:38:34,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2024-11-14 03:38:34,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-14 03:38:34,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:38:34,960 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:38:34,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:38:34,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1174458495, now seen corresponding path program 1 times [2024-11-14 03:38:34,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:38:34,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338178495] [2024-11-14 03:38:34,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:38:34,962 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 03:38:34,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:38:34,966 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:38:34,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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)] Waiting until timeout for monitored process [2024-11-14 03:38:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:38:35,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:38:35,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:36,114 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 03:38:36,114 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:36,490 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 03:38:36,490 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:38:36,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338178495] [2024-11-14 03:38:36,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338178495] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:36,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [143774537] [2024-11-14 03:38:36,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:38:36,491 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:38:36,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:38:36,493 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:38:36,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-14 03:38:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:38:38,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:38:38,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:38,097 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 03:38:38,098 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:38,228 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 03:38:38,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [143774537] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:38,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178093783] [2024-11-14 03:38:38,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:38:38,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:38:38,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:38:38,232 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:38:38,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 03:38:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:38:39,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:38:39,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:39,325 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:38:39,325 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:39,912 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:38:39,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178093783] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:39,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:38:39,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 22 [2024-11-14 03:38:39,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459141947] [2024-11-14 03:38:39,913 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:38:39,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 03:38:39,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:38:39,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 03:38:39,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2024-11-14 03:38:39,915 INFO L87 Difference]: Start difference. First operand 258 states and 304 transitions. Second operand has 22 states, 22 states have (on average 6.909090909090909) internal successors, (152), 22 states have internal predecessors, (152), 2 states have call successors, (4), 2 states have call predecessors, (4), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:38:41,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:38:41,592 INFO L93 Difference]: Finished difference Result 278 states and 333 transitions. [2024-11-14 03:38:41,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 03:38:41,594 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.909090909090909) internal successors, (152), 22 states have internal predecessors, (152), 2 states have call successors, (4), 2 states have call predecessors, (4), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 136 [2024-11-14 03:38:41,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:38:41,595 INFO L225 Difference]: With dead ends: 278 [2024-11-14 03:38:41,595 INFO L226 Difference]: Without dead ends: 272 [2024-11-14 03:38:41,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 831 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=505, Invalid=1301, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 03:38:41,596 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 24 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2400 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:38:41,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2400 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:38:41,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-14 03:38:41,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 270. [2024-11-14 03:38:41,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 262 states have (on average 1.1984732824427482) internal successors, (314), 264 states have internal predecessors, (314), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:38:41,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 321 transitions. [2024-11-14 03:38:41,606 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 321 transitions. Word has length 136 [2024-11-14 03:38:41,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:38:41,606 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 321 transitions. [2024-11-14 03:38:41,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.909090909090909) internal successors, (152), 22 states have internal predecessors, (152), 2 states have call successors, (4), 2 states have call predecessors, (4), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:38:41,607 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 321 transitions. [2024-11-14 03:38:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-14 03:38:41,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:38:41,609 INFO L215 NwaCegarLoop]: trace histogram [20, 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] [2024-11-14 03:38:41,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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)] Ended with exit code 0 [2024-11-14 03:38:41,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2024-11-14 03:38:42,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-14 03:38:42,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:38:42,210 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:38:42,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:38:42,211 INFO L85 PathProgramCache]: Analyzing trace with hash -2088500159, now seen corresponding path program 2 times [2024-11-14 03:38:42,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:38:42,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905777303] [2024-11-14 03:38:42,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:38:42,212 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 03:38:42,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:38:42,214 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:38:42,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 (25)] Waiting until timeout for monitored process [2024-11-14 03:38:43,303 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:38:43,303 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:38:43,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:38:43,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:43,741 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 126 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-14 03:38:43,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:45,009 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 178 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:38:45,009 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:38:45,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905777303] [2024-11-14 03:38:45,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905777303] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:45,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1598806126] [2024-11-14 03:38:45,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:38:45,009 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:38:45,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:38:45,012 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:38:45,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-14 03:38:47,280 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:38:47,280 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:38:47,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:38:47,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:47,401 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 126 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-14 03:38:47,401 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:47,696 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 178 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:38:47,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1598806126] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:47,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958394821] [2024-11-14 03:38:47,697 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:38:47,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:38:47,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:38:47,700 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:38:47,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 03:38:48,833 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:38:48,834 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:38:48,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 03:38:48,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:49,056 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:38:49,056 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 03:38:50,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958394821] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:50,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:38:50,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 14, 14] total 40 [2024-11-14 03:38:50,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811831698] [2024-11-14 03:38:50,678 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:38:50,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-14 03:38:50,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:38:50,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-14 03:38:50,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=1147, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 03:38:50,681 INFO L87 Difference]: Start difference. First operand 270 states and 321 transitions. Second operand has 40 states, 40 states have (on average 4.25) internal successors, (170), 40 states have internal predecessors, (170), 2 states have call successors, (4), 2 states have call predecessors, (4), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:38:56,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:38:56,492 INFO L93 Difference]: Finished difference Result 302 states and 374 transitions. [2024-11-14 03:38:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-14 03:38:56,493 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 4.25) internal successors, (170), 40 states have internal predecessors, (170), 2 states have call successors, (4), 2 states have call predecessors, (4), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 148 [2024-11-14 03:38:56,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:38:56,495 INFO L225 Difference]: With dead ends: 302 [2024-11-14 03:38:56,495 INFO L226 Difference]: Without dead ends: 296 [2024-11-14 03:38:56,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 927 GetRequests, 844 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1873, Invalid=5267, Unknown=0, NotChecked=0, Total=7140 [2024-11-14 03:38:56,514 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 48 mSDsluCounter, 4999 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 5221 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:38:56,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 5221 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 03:38:56,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-14 03:38:56,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 294. [2024-11-14 03:38:56,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 286 states have (on average 1.2202797202797202) internal successors, (349), 288 states have internal predecessors, (349), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:38:56,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 356 transitions. [2024-11-14 03:38:56,524 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 356 transitions. Word has length 148 [2024-11-14 03:38:56,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:38:56,524 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 356 transitions. [2024-11-14 03:38:56,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 4.25) internal successors, (170), 40 states have internal predecessors, (170), 2 states have call successors, (4), 2 states have call predecessors, (4), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:38:56,524 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 356 transitions. [2024-11-14 03:38:56,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-14 03:38:56,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:38:56,526 INFO L215 NwaCegarLoop]: trace histogram [44, 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] [2024-11-14 03:38:56,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2024-11-14 03:38:56,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 (25)] Ended with exit code 0 [2024-11-14 03:38:56,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-14 03:38:57,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:38:57,127 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:38:57,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:38:57,128 INFO L85 PathProgramCache]: Analyzing trace with hash 885784001, now seen corresponding path program 3 times [2024-11-14 03:38:57,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:38:57,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855241091] [2024-11-14 03:38:57,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:38:57,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:38:57,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:38:57,131 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 03:38:57,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/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 (28)] Waiting until timeout for monitored process [2024-11-14 03:39:06,370 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-11-14 03:39:06,371 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:39:06,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 03:39:06,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:39:07,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 533 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-14 03:39:07,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:39:12,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 533 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-14 03:39:12,232 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:39:12,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855241091] [2024-11-14 03:39:12,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855241091] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:39:12,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1451488416] [2024-11-14 03:39:12,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:39:12,233 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:39:12,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:39:12,235 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:39:12,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8012a01-2d3c-47a4-b0ff-209b668c7c03/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process