./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:26:44,667 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:26:44,735 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-13 23:26:44,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:26:44,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:26:44,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:26:44,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:26:44,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:26:44,770 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:26:44,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:26:44,772 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:26:44,772 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:26:44,772 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:26:44,773 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:26:44,773 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:26:44,773 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:26:44,773 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:26:44,773 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:26:44,774 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:26:44,774 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:26:44,774 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:26:44,774 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:26:44,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:26:44,775 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:26:44,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:26:44,775 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:26:44,776 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:26:44,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:26:44,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:26:44,776 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 23:26:44,776 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 23:26:44,776 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 23:26:44,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:26:44,777 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:26:44,777 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:26:44,778 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:26:44,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:26:44,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:26:44,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:26:44,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:26:44,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:26:44,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:26:44,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:26:44,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:26:44,779 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:26:44,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:26:44,779 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:26:44,779 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:26:44,780 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:26:44,780 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_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 [2024-11-13 23:26:45,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:26:45,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:26:45,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:26:45,106 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:26:45,106 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:26:45,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i Unable to find full path for "g++" [2024-11-13 23:26:46,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:26:47,446 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:26:47,447 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2024-11-13 23:26:47,481 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/data/9b0a706c0/1fb02aec1271483083385fa4c5d1ed61/FLAG43fa994f7 [2024-11-13 23:26:47,569 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/data/9b0a706c0/1fb02aec1271483083385fa4c5d1ed61 [2024-11-13 23:26:47,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:26:47,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:26:47,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:26:47,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:26:47,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:26:47,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:26:47" (1/1) ... [2024-11-13 23:26:47,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8f2602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:47, skipping insertion in model container [2024-11-13 23:26:47,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:26:47" (1/1) ... [2024-11-13 23:26:47,640 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:26:47,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:26:48,011 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) [2024-11-13 23:26:48,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6131442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:48, skipping insertion in model container [2024-11-13 23:26:48,012 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:26:48,013 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-13 23:26:48,014 INFO L158 Benchmark]: Toolchain (without parser) took 440.90ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 74.3MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:26:48,015 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 74.2MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:26:48,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.41ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 74.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:26:48,017 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 74.2MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.41ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 74.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3005]: 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_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:26:50,516 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:26:50,628 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2024-11-13 23:26:50,639 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:26:50,640 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:26:50,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:26:50,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:26:50,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:26:50,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:26:50,674 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:26:50,674 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:26:50,674 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:26:50,674 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:26:50,674 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:26:50,674 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:26:50,675 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:26:50,675 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:26:50,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:26:50,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:26:50,675 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:26:50,675 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:26:50,676 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:26:50,676 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:26:50,676 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 23:26:50,676 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 23:26:50,676 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 23:26:50,676 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:26:50,676 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:26:50,677 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:26:50,677 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:26:50,677 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:26:50,677 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:26:50,677 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:26:50,677 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:26:50,677 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:26:50,677 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 23:26:50,678 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:26:50,678 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:26:50,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:26:50,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:26:50,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:26:50,678 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:26:50,678 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:26:50,678 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:26:50,679 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:26:50,679 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_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 [2024-11-13 23:26:50,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:26:50,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:26:50,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:26:51,001 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:26:51,002 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:26:51,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i Unable to find full path for "g++" [2024-11-13 23:26:53,029 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:26:53,405 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:26:53,408 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2024-11-13 23:26:53,448 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/data/005381f02/1061077fbbfd47369c754e4aa975b411/FLAGc0f131516 [2024-11-13 23:26:53,472 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/data/005381f02/1061077fbbfd47369c754e4aa975b411 [2024-11-13 23:26:53,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:26:53,476 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:26:53,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:26:53,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:26:53,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:26:53,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:26:53" (1/1) ... [2024-11-13 23:26:53,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@643162b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:53, skipping insertion in model container [2024-11-13 23:26:53,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:26:53" (1/1) ... [2024-11-13 23:26:53,574 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:26:54,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:26:54,107 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-13 23:26:54,146 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:26:54,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:26:54,239 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:26:54,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:26:54,347 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:26:54,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:54 WrapperNode [2024-11-13 23:26:54,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:26:54,349 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:26:54,350 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:26:54,350 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:26:54,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:54" (1/1) ... [2024-11-13 23:26:54,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:54" (1/1) ... [2024-11-13 23:26:54,406 INFO L138 Inliner]: procedures = 194, calls = 32, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 153 [2024-11-13 23:26:54,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:26:54,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:26:54,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:26:54,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:26:54,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:54" (1/1) ... [2024-11-13 23:26:54,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:54" (1/1) ... [2024-11-13 23:26:54,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:54" (1/1) ... [2024-11-13 23:26:54,420 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:54" (1/1) ... [2024-11-13 23:26:54,454 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:54" (1/1) ... [2024-11-13 23:26:54,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:54" (1/1) ... [2024-11-13 23:26:54,458 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:54" (1/1) ... [2024-11-13 23:26:54,462 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:54" (1/1) ... [2024-11-13 23:26:54,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:26:54,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:26:54,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:26:54,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:26:54,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:54" (1/1) ... [2024-11-13 23:26:54,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:26:54,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:26:54,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:26:54,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:26:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-13 23:26:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 23:26:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-13 23:26:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 23:26:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2024-11-13 23:26:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-13 23:26:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 23:26:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 23:26:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 23:26:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:26:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 23:26:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 23:26:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 23:26:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:26:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:26:54,546 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 23:26:54,715 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:26:54,718 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:26:55,261 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 23:26:55,262 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:26:55,926 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:26:55,926 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 23:26:55,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:26:55 BoogieIcfgContainer [2024-11-13 23:26:55,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:26:55,931 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:26:55,931 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:26:55,937 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:26:55,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:26:53" (1/3) ... [2024-11-13 23:26:55,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e76836f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:26:55, skipping insertion in model container [2024-11-13 23:26:55,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:26:54" (2/3) ... [2024-11-13 23:26:55,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e76836f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:26:55, skipping insertion in model container [2024-11-13 23:26:55,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:26:55" (3/3) ... [2024-11-13 23:26:55,941 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_06-ptra_nr.i [2024-11-13 23:26:55,959 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:26:55,960 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_06-ptra_nr.i that has 2 procedures, 58 locations, 1 initial locations, 0 loop locations, and 29 error locations. [2024-11-13 23:26:55,961 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 23:26:56,060 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 23:26:56,102 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 57 transitions, 118 flow [2024-11-13 23:26:56,166 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 314 states, 235 states have (on average 2.425531914893617) internal successors, (570), 313 states have internal predecessors, (570), 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) [2024-11-13 23:26:56,199 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:26:56,217 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;@4fdc1c6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:26:56,218 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-13 23:26:56,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 314 states, 235 states have (on average 2.425531914893617) internal successors, (570), 313 states have internal predecessors, (570), 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) [2024-11-13 23:26:56,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-13 23:26:56,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:26:56,233 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-13 23:26:56,233 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-13 23:26:56,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:26:56,239 INFO L85 PathProgramCache]: Analyzing trace with hash 13163, now seen corresponding path program 1 times [2024-11-13 23:26:56,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:26:56,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679095734] [2024-11-13 23:26:56,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:26:56,255 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 [2024-11-13 23:26:56,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:26:56,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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) [2024-11-13 23:26:56,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:26:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:26:56,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:26:56,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:26:56,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-13 23:26:56,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:26:56,559 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:26:56,559 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:26:56,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679095734] [2024-11-13 23:26:56,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679095734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:26:56,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:26:56,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 23:26:56,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412559295] [2024-11-13 23:26:56,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:26:56,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:26:56,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:26:56,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:26:56,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:26:56,592 INFO L87 Difference]: Start difference. First operand has 314 states, 235 states have (on average 2.425531914893617) internal successors, (570), 313 states have internal predecessors, (570), 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) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-11-13 23:26:56,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:26:56,859 INFO L93 Difference]: Finished difference Result 314 states and 570 transitions. [2024-11-13 23:26:56,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:26:56,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-11-13 23:26:56,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:26:56,878 INFO L225 Difference]: With dead ends: 314 [2024-11-13 23:26:56,878 INFO L226 Difference]: Without dead ends: 308 [2024-11-13 23:26:56,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:26:56,886 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:26:56,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 32 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:26:56,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-13 23:26:56,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2024-11-13 23:26:56,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 235 states have (on average 2.4) internal successors, (564), 307 states have internal predecessors, (564), 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) [2024-11-13 23:26:56,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 564 transitions. [2024-11-13 23:26:56,946 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 564 transitions. Word has length 2 [2024-11-13 23:26:56,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:26:56,946 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 564 transitions. [2024-11-13 23:26:56,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-11-13 23:26:56,947 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 564 transitions. [2024-11-13 23:26:56,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-13 23:26:56,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:26:56,948 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-13 23:26:56,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:26:57,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:26:57,152 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-13 23:26:57,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:26:57,152 INFO L85 PathProgramCache]: Analyzing trace with hash 13164, now seen corresponding path program 1 times [2024-11-13 23:26:57,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:26:57,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936840185] [2024-11-13 23:26:57,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:26:57,155 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 [2024-11-13 23:26:57,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:26:57,157 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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) [2024-11-13 23:26:57,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:26:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:26:57,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 23:26:57,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:26:57,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-13 23:26:57,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:26:57,357 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:26:57,357 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:26:57,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936840185] [2024-11-13 23:26:57,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936840185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:26:57,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:26:57,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 23:26:57,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494731424] [2024-11-13 23:26:57,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:26:57,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:26:57,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:26:57,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:26:57,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:26:57,360 INFO L87 Difference]: Start difference. First operand 308 states and 564 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-11-13 23:26:57,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:26:57,565 INFO L93 Difference]: Finished difference Result 308 states and 564 transitions. [2024-11-13 23:26:57,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:26:57,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-11-13 23:26:57,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:26:57,569 INFO L225 Difference]: With dead ends: 308 [2024-11-13 23:26:57,569 INFO L226 Difference]: Without dead ends: 302 [2024-11-13 23:26:57,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:26:57,570 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 3 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:26:57,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 33 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:26:57,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-13 23:26:57,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2024-11-13 23:26:57,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 235 states have (on average 2.374468085106383) internal successors, (558), 301 states have internal predecessors, (558), 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) [2024-11-13 23:26:57,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 558 transitions. [2024-11-13 23:26:57,591 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 558 transitions. Word has length 2 [2024-11-13 23:26:57,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:26:57,591 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 558 transitions. [2024-11-13 23:26:57,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-11-13 23:26:57,592 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 558 transitions. [2024-11-13 23:26:57,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 23:26:57,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:26:57,592 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 23:26:57,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:26:57,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:26:57,794 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-13 23:26:57,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:26:57,795 INFO L85 PathProgramCache]: Analyzing trace with hash -717072951, now seen corresponding path program 1 times [2024-11-13 23:26:57,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:26:57,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914353758] [2024-11-13 23:26:57,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:26:57,796 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 [2024-11-13 23:26:57,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:26:57,801 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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) [2024-11-13 23:26:57,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:26:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:26:58,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:26:58,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:26:58,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-13 23:26:58,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:26:58,113 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:26:58,114 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:26:58,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914353758] [2024-11-13 23:26:58,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914353758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:26:58,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:26:58,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:26:58,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722066124] [2024-11-13 23:26:58,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:26:58,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:26:58,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:26:58,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:26:58,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:26:58,117 INFO L87 Difference]: Start difference. First operand 302 states and 558 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-13 23:26:58,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:26:58,314 INFO L93 Difference]: Finished difference Result 302 states and 558 transitions. [2024-11-13 23:26:58,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:26:58,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-11-13 23:26:58,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:26:58,317 INFO L225 Difference]: With dead ends: 302 [2024-11-13 23:26:58,317 INFO L226 Difference]: Without dead ends: 254 [2024-11-13 23:26:58,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:26:58,318 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:26:58,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 8 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:26:58,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-13 23:26:58,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2024-11-13 23:26:58,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 209 states have (on average 2.229665071770335) internal successors, (466), 253 states have internal predecessors, (466), 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) [2024-11-13 23:26:58,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 466 transitions. [2024-11-13 23:26:58,333 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 466 transitions. Word has length 6 [2024-11-13 23:26:58,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:26:58,333 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 466 transitions. [2024-11-13 23:26:58,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-13 23:26:58,333 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 466 transitions. [2024-11-13 23:26:58,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 23:26:58,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:26:58,334 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 23:26:58,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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)] Forceful destruction successful, exit code 0 [2024-11-13 23:26:58,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:26:58,535 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-13 23:26:58,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:26:58,535 INFO L85 PathProgramCache]: Analyzing trace with hash -717072952, now seen corresponding path program 1 times [2024-11-13 23:26:58,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:26:58,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310686630] [2024-11-13 23:26:58,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:26:58,536 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 [2024-11-13 23:26:58,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:26:58,538 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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) [2024-11-13 23:26:58,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:26:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:26:58,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:26:58,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:26:58,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-13 23:26:58,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:26:58,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:26:58,783 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:26:58,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310686630] [2024-11-13 23:26:58,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310686630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:26:58,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:26:58,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:26:58,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984756578] [2024-11-13 23:26:58,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:26:58,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:26:58,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:26:58,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:26:58,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:26:58,785 INFO L87 Difference]: Start difference. First operand 254 states and 466 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-13 23:26:58,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:26:58,941 INFO L93 Difference]: Finished difference Result 254 states and 466 transitions. [2024-11-13 23:26:58,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:26:58,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-11-13 23:26:58,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:26:58,943 INFO L225 Difference]: With dead ends: 254 [2024-11-13 23:26:58,943 INFO L226 Difference]: Without dead ends: 210 [2024-11-13 23:26:58,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:26:58,945 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:26:58,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 7 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:26:58,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-13 23:26:58,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-11-13 23:26:58,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 183 states have (on average 2.087431693989071) internal successors, (382), 209 states have internal predecessors, (382), 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) [2024-11-13 23:26:58,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 382 transitions. [2024-11-13 23:26:58,955 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 382 transitions. Word has length 6 [2024-11-13 23:26:58,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:26:58,956 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 382 transitions. [2024-11-13 23:26:58,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-13 23:26:58,956 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 382 transitions. [2024-11-13 23:26:58,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 23:26:58,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:26:58,956 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:26:58,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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)] Ended with exit code 0 [2024-11-13 23:26:59,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:26:59,160 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-13 23:26:59,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:26:59,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1657576077, now seen corresponding path program 1 times [2024-11-13 23:26:59,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:26:59,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268577244] [2024-11-13 23:26:59,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:26:59,162 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 [2024-11-13 23:26:59,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:26:59,166 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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) [2024-11-13 23:26:59,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:26:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:26:59,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:26:59,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:26:59,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-13 23:26:59,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:26:59,488 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:26:59,488 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:26:59,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268577244] [2024-11-13 23:26:59,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268577244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:26:59,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:26:59,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:26:59,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402975202] [2024-11-13 23:26:59,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:26:59,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:26:59,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:26:59,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:26:59,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:26:59,492 INFO L87 Difference]: Start difference. First operand 210 states and 382 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-13 23:26:59,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:26:59,710 INFO L93 Difference]: Finished difference Result 210 states and 382 transitions. [2024-11-13 23:26:59,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:26:59,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2024-11-13 23:26:59,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:26:59,712 INFO L225 Difference]: With dead ends: 210 [2024-11-13 23:26:59,713 INFO L226 Difference]: Without dead ends: 186 [2024-11-13 23:26:59,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:26:59,717 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:26:59,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 18 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:26:59,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-13 23:26:59,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2024-11-13 23:26:59,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 167 states have (on average 2.0119760479041915) internal successors, (336), 185 states have internal predecessors, (336), 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) [2024-11-13 23:26:59,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 336 transitions. [2024-11-13 23:26:59,735 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 336 transitions. Word has length 11 [2024-11-13 23:26:59,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:26:59,735 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 336 transitions. [2024-11-13 23:26:59,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-13 23:26:59,735 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 336 transitions. [2024-11-13 23:26:59,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 23:26:59,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:26:59,735 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:26:59,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:26:59,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:26:59,941 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-13 23:26:59,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:26:59,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1657576076, now seen corresponding path program 1 times [2024-11-13 23:26:59,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:26:59,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779900958] [2024-11-13 23:26:59,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:26:59,942 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 [2024-11-13 23:26:59,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:26:59,944 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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) [2024-11-13 23:26:59,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:27:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:27:00,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 23:27:00,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:27:00,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-13 23:27:00,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:27:00,281 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:27:00,281 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:27:00,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779900958] [2024-11-13 23:27:00,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779900958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:27:00,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:27:00,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:27:00,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418691538] [2024-11-13 23:27:00,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:27:00,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:27:00,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:27:00,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:27:00,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:27:00,283 INFO L87 Difference]: Start difference. First operand 186 states and 336 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-13 23:27:00,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:27:00,498 INFO L93 Difference]: Finished difference Result 186 states and 336 transitions. [2024-11-13 23:27:00,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:27:00,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2024-11-13 23:27:00,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:27:00,500 INFO L225 Difference]: With dead ends: 186 [2024-11-13 23:27:00,500 INFO L226 Difference]: Without dead ends: 162 [2024-11-13 23:27:00,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:27:00,501 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 12 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:27:00,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 20 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:27:00,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-13 23:27:00,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-11-13 23:27:00,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 151 states have (on average 1.9205298013245033) internal successors, (290), 161 states have internal predecessors, (290), 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) [2024-11-13 23:27:00,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 290 transitions. [2024-11-13 23:27:00,514 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 290 transitions. Word has length 11 [2024-11-13 23:27:00,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:27:00,514 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 290 transitions. [2024-11-13 23:27:00,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-13 23:27:00,514 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 290 transitions. [2024-11-13 23:27:00,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 23:27:00,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:27:00,515 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:27:00,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-13 23:27:00,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:27:00,720 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-13 23:27:00,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:27:00,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1618742607, now seen corresponding path program 1 times [2024-11-13 23:27:00,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:27:00,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054827900] [2024-11-13 23:27:00,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:27:00,722 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 [2024-11-13 23:27:00,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:27:00,724 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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) [2024-11-13 23:27:00,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:27:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:27:01,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 23:27:01,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:27:01,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-13 23:27:01,150 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2024-11-13 23:27:01,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17 [2024-11-13 23:27:01,223 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-13 23:27:01,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2024-11-13 23:27:01,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:27:01,438 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:27:01,438 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:27:01,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054827900] [2024-11-13 23:27:01,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054827900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:27:01,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:27:01,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:27:01,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771003281] [2024-11-13 23:27:01,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:27:01,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:27:01,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:27:01,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:27:01,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:27:01,440 INFO L87 Difference]: Start difference. First operand 162 states and 290 transitions. Second operand has 5 states, 4 states have (on average 3.5) 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) [2024-11-13 23:27:01,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:27:01,654 INFO L93 Difference]: Finished difference Result 162 states and 290 transitions. [2024-11-13 23:27:01,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:27:01,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) 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 [2024-11-13 23:27:01,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:27:01,656 INFO L225 Difference]: With dead ends: 162 [2024-11-13 23:27:01,656 INFO L226 Difference]: Without dead ends: 149 [2024-11-13 23:27:01,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:27:01,657 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 42 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:27:01,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 7 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:27:01,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-13 23:27:01,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-11-13 23:27:01,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 141 states have (on average 1.8794326241134751) internal successors, (265), 148 states have internal predecessors, (265), 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) [2024-11-13 23:27:01,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 265 transitions. [2024-11-13 23:27:01,664 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 265 transitions. Word has length 14 [2024-11-13 23:27:01,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:27:01,664 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 265 transitions. [2024-11-13 23:27:01,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) 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) [2024-11-13 23:27:01,664 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 265 transitions. [2024-11-13 23:27:01,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 23:27:01,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:27:01,665 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:27:01,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-13 23:27:01,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:27:01,866 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-13 23:27:01,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:27:01,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1618742606, now seen corresponding path program 1 times [2024-11-13 23:27:01,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:27:01,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304046649] [2024-11-13 23:27:01,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:27:01,869 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 [2024-11-13 23:27:01,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:27:01,871 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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) [2024-11-13 23:27:01,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:27:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:27:02,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 23:27:02,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:27:02,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-13 23:27:02,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-13 23:27:02,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:27:02,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-13 23:27:02,355 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 23:27:02,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 23:27:02,412 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-13 23:27:02,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-11-13 23:27:02,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:27:02,486 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:27:02,486 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:27:02,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304046649] [2024-11-13 23:27:02,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304046649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:27:02,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:27:02,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:27:02,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013764100] [2024-11-13 23:27:02,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:27:02,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:27:02,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:27:02,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:27:02,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:27:02,487 INFO L87 Difference]: Start difference. First operand 149 states and 265 transitions. Second operand has 4 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) [2024-11-13 23:27:02,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:27:02,708 INFO L93 Difference]: Finished difference Result 149 states and 265 transitions. [2024-11-13 23:27:02,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:27:02,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 [2024-11-13 23:27:02,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:27:02,710 INFO L225 Difference]: With dead ends: 149 [2024-11-13 23:27:02,710 INFO L226 Difference]: Without dead ends: 136 [2024-11-13 23:27:02,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:27:02,711 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 24 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:27:02,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 5 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:27:02,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-13 23:27:02,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-11-13 23:27:02,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 131 states have (on average 1.83206106870229) internal successors, (240), 135 states have internal predecessors, (240), 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) [2024-11-13 23:27:02,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 240 transitions. [2024-11-13 23:27:02,722 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 240 transitions. Word has length 14 [2024-11-13 23:27:02,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:27:02,722 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 240 transitions. [2024-11-13 23:27:02,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2024-11-13 23:27:02,722 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 240 transitions. [2024-11-13 23:27:02,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 23:27:02,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:27:02,723 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:27:02,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:27:02,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:27:02,924 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-13 23:27:02,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:27:02,924 INFO L85 PathProgramCache]: Analyzing trace with hash -150525446, now seen corresponding path program 1 times [2024-11-13 23:27:02,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:27:02,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989496907] [2024-11-13 23:27:02,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:27:02,925 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 [2024-11-13 23:27:02,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:27:02,927 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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) [2024-11-13 23:27:02,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:27:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:27:03,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 23:27:03,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:27:03,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-13 23:27:03,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:27:03,307 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:27:03,307 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:27:03,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989496907] [2024-11-13 23:27:03,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989496907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:27:03,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:27:03,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:27:03,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713453530] [2024-11-13 23:27:03,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:27:03,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:27:03,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:27:03,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:27:03,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:27:03,308 INFO L87 Difference]: Start difference. First operand 136 states and 240 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-11-13 23:27:03,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:27:03,576 INFO L93 Difference]: Finished difference Result 136 states and 240 transitions. [2024-11-13 23:27:03,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:27:03,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2024-11-13 23:27:03,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:27:03,577 INFO L225 Difference]: With dead ends: 136 [2024-11-13 23:27:03,577 INFO L226 Difference]: Without dead ends: 126 [2024-11-13 23:27:03,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:27:03,578 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 31 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:27:03,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 11 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:27:03,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-13 23:27:03,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2024-11-13 23:27:03,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 123 states have (on average 1.7967479674796747) internal successors, (221), 125 states have internal predecessors, (221), 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) [2024-11-13 23:27:03,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 221 transitions. [2024-11-13 23:27:03,584 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 221 transitions. Word has length 17 [2024-11-13 23:27:03,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:27:03,584 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 221 transitions. [2024-11-13 23:27:03,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-11-13 23:27:03,584 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 221 transitions. [2024-11-13 23:27:03,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 23:27:03,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:27:03,585 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:27:03,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:27:03,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:27:03,789 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-13 23:27:03,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:27:03,789 INFO L85 PathProgramCache]: Analyzing trace with hash -150525445, now seen corresponding path program 1 times [2024-11-13 23:27:03,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:27:03,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692248517] [2024-11-13 23:27:03,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:27:03,790 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 [2024-11-13 23:27:03,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:27:03,794 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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) [2024-11-13 23:27:03,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:27:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:27:04,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:27:04,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:27:04,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-13 23:27:04,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:27:04,228 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:27:04,228 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:27:04,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692248517] [2024-11-13 23:27:04,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692248517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:27:04,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:27:04,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:27:04,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257705808] [2024-11-13 23:27:04,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:27:04,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:27:04,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:27:04,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:27:04,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:27:04,229 INFO L87 Difference]: Start difference. First operand 126 states and 221 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-11-13 23:27:04,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:27:04,514 INFO L93 Difference]: Finished difference Result 126 states and 221 transitions. [2024-11-13 23:27:04,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:27:04,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2024-11-13 23:27:04,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:27:04,516 INFO L225 Difference]: With dead ends: 126 [2024-11-13 23:27:04,516 INFO L226 Difference]: Without dead ends: 108 [2024-11-13 23:27:04,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:27:04,517 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 29 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:27:04,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 16 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 23:27:04,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-13 23:27:04,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-13 23:27:04,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.7476635514018692) internal successors, (187), 107 states have internal predecessors, (187), 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) [2024-11-13 23:27:04,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 187 transitions. [2024-11-13 23:27:04,522 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 187 transitions. Word has length 17 [2024-11-13 23:27:04,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:27:04,522 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 187 transitions. [2024-11-13 23:27:04,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-11-13 23:27:04,522 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 187 transitions. [2024-11-13 23:27:04,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 23:27:04,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:27:04,523 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:27:04,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:27:04,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:27:04,727 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-13 23:27:04,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:27:04,727 INFO L85 PathProgramCache]: Analyzing trace with hash -67787120, now seen corresponding path program 1 times [2024-11-13 23:27:04,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:27:04,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444459502] [2024-11-13 23:27:04,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:27:04,728 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 [2024-11-13 23:27:04,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:27:04,729 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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) [2024-11-13 23:27:04,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 (12)] Waiting until timeout for monitored process [2024-11-13 23:27:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:27:05,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:27:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:27:05,344 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-13 23:27:05,344 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 23:27:05,345 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK (39 of 40 remaining) [2024-11-13 23:27:05,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 40 remaining) [2024-11-13 23:27:05,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 40 remaining) [2024-11-13 23:27:05,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 40 remaining) [2024-11-13 23:27:05,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 40 remaining) [2024-11-13 23:27:05,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 40 remaining) [2024-11-13 23:27:05,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 40 remaining) [2024-11-13 23:27:05,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 40 remaining) [2024-11-13 23:27:05,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 40 remaining) [2024-11-13 23:27:05,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 40 remaining) [2024-11-13 23:27:05,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 40 remaining) [2024-11-13 23:27:05,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 40 remaining) [2024-11-13 23:27:05,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 40 remaining) [2024-11-13 23:27:05,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 40 remaining) [2024-11-13 23:27:05,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 40 remaining) [2024-11-13 23:27:05,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 40 remaining) [2024-11-13 23:27:05,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 40 remaining) [2024-11-13 23:27:05,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 40 remaining) [2024-11-13 23:27:05,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 40 remaining) [2024-11-13 23:27:05,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 40 remaining) [2024-11-13 23:27:05,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 40 remaining) [2024-11-13 23:27:05,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 40 remaining) [2024-11-13 23:27:05,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 40 remaining) [2024-11-13 23:27:05,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 40 remaining) [2024-11-13 23:27:05,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 40 remaining) [2024-11-13 23:27:05,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 40 remaining) [2024-11-13 23:27:05,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 40 remaining) [2024-11-13 23:27:05,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 40 remaining) [2024-11-13 23:27:05,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 40 remaining) [2024-11-13 23:27:05,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 40 remaining) [2024-11-13 23:27:05,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 40 remaining) [2024-11-13 23:27:05,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 40 remaining) [2024-11-13 23:27:05,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 40 remaining) [2024-11-13 23:27:05,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 40 remaining) [2024-11-13 23:27:05,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 40 remaining) [2024-11-13 23:27:05,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 40 remaining) [2024-11-13 23:27:05,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 40 remaining) [2024-11-13 23:27:05,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 40 remaining) [2024-11-13 23:27:05,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 40 remaining) [2024-11-13 23:27:05,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 40 remaining) [2024-11-13 23:27:05,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 (12)] Forceful destruction successful, exit code 0 [2024-11-13 23:27:05,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/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 [2024-11-13 23:27:05,559 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:27:05,605 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 23:27:05,605 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:27:05,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:27:05 BasicIcfg [2024-11-13 23:27:05,608 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:27:05,609 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:27:05,609 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:27:05,609 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:27:05,610 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:26:55" (3/4) ... [2024-11-13 23:27:05,612 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:27:05,613 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:27:05,613 INFO L158 Benchmark]: Toolchain (without parser) took 12137.74ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 58.1MB in the beginning and 25.4MB in the end (delta: 32.6MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. [2024-11-13 23:27:05,614 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 83.9MB. Free memory was 65.5MB in the beginning and 65.5MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:27:05,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 870.34ms. Allocated memory is still 83.9MB. Free memory was 58.1MB in the beginning and 25.6MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 23:27:05,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.32ms. Allocated memory is still 83.9MB. Free memory was 25.6MB in the beginning and 23.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:27:05,615 INFO L158 Benchmark]: Boogie Preprocessor took 58.23ms. Allocated memory is still 83.9MB. Free memory was 23.3MB in the beginning and 58.9MB in the end (delta: -35.7MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2024-11-13 23:27:05,615 INFO L158 Benchmark]: RCFGBuilder took 1461.66ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 58.9MB in the beginning and 72.6MB in the end (delta: -13.6MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2024-11-13 23:27:05,615 INFO L158 Benchmark]: TraceAbstraction took 9676.99ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 25.4MB in the end (delta: 46.5MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2024-11-13 23:27:05,616 INFO L158 Benchmark]: Witness Printer took 3.84ms. Allocated memory is still 117.4MB. Free memory was 25.4MB in the beginning and 25.4MB in the end (delta: 15.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:27:05,617 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 83.9MB. Free memory was 65.5MB in the beginning and 65.5MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 870.34ms. Allocated memory is still 83.9MB. Free memory was 58.1MB in the beginning and 25.6MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.32ms. Allocated memory is still 83.9MB. Free memory was 25.6MB in the beginning and 23.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.23ms. Allocated memory is still 83.9MB. Free memory was 23.3MB in the beginning and 58.9MB in the end (delta: -35.7MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1461.66ms. Allocated memory was 83.9MB in the beginning and 117.4MB in the end (delta: 33.6MB). Free memory was 58.9MB in the beginning and 72.6MB in the end (delta: -13.6MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. * TraceAbstraction took 9676.99ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 25.4MB in the end (delta: 46.5MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * Witness Printer took 3.84ms. Allocated memory is still 117.4MB. Free memory was 25.4MB in the beginning and 25.4MB in the end (delta: 15.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 3013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3013. Possible FailurePath: [L2989-L2992] 0 struct s { struct s *next; int datum; } *A, *B; [L2997] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L2998] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L3014] 0 pthread_t t1; [L3015] 0 int *ip; [L3016] 0 struct s *sp; [L3017] 0 struct s *p = malloc(sizeof(struct s)); [L3018] CALL 0 init(p,9) [L2994] 0 p -> datum = x VAL [A={0:0}, A_mutex={1:0}, B={0:0}, \old(p)={-2147483648:0}, \old(x)=9, p={-2147483648:0}, x=9] [L2995] 0 p -> next = ((void *)0) [L3018] RET 0 init(p,9) [L3019] 0 A = malloc(sizeof(struct s)) [L3020] CALL 0 init(A,3) [L2994] 0 p -> datum = x VAL [A={3:0}, A_mutex={1:0}, B={0:0}, \old(p)={3:0}, \old(x)=3, p={3:0}, x=3] [L2995] 0 p -> next = ((void *)0) [L3020] RET 0 init(A,3) [L3021] 0 A->next = p [L3022] 0 B = malloc(sizeof(struct s)) [L3023] CALL 0 init(B,5) [L2994] 0 p -> datum = x VAL [A={3:0}, A_mutex={1:0}, B={1073741824:0}, \old(p)={1073741824:0}, \old(x)=5, p={1073741824:0}, x=5] [L2995] 0 p -> next = ((void *)0) [L3023] RET 0 init(B,5) [L3024] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, A_mutex={1:0}, B={1073741824:0}, p={-2147483648:0}, t1=-1] [L3025] 0 ip = &p->datum [L3026] 0 sp = ((struct s *)((char *)(ip)-(unsigned long)__builtin_offsetof (struct s, datum))) VAL [A={3:0}, A_mutex={1:0}, B={1073741824:0}, ip={-2147483648:4}, p={-2147483648:0}, sp={-2147483648:0}, t1=-1] [L3028] EXPR 0 A->next [L3028] 0 sp = A->next [L3029] 0 p->datum [L3031] 0 return 0; VAL [A={3:0}, A_mutex={1:0}, B={1073741824:0}, \result=0, ip={-2147483648:4}, p={-2147483648:0}, sp={-2147483648:0}, t1=-1] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3024]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 80 locations, 40 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 226 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 226 mSDsluCounter, 157 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 529 IncrementalHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 111 mSDtfsCounter, 529 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 73 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 90 ConstructedInterpolants, 7 QuantifiedInterpolants, 557 SizeOfPredicates, 38 NumberOfNonLiveVariables, 2200 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 23:27:05,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4606d9f-94a4-4d1e-b9c3-5d30f72b43a8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample