./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --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 cfe359172ad2672387c82471e6d5c8b8ec22ae94 ............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --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 cfe359172ad2672387c82471e6d5c8b8ec22ae94 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:31:47,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:47,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:47,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:47,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:47,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:47,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:47,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:47,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:47,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:47,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:47,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:47,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:47,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:47,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:47,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:47,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:47,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:47,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:47,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:47,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:47,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:47,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:47,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:47,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:47,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:47,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:47,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:47,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:47,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:47,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:47,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:47,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:47,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:47,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:47,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:47,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:47,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:47,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:47,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:47,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:47,761 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-11 02:31:47,806 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:47,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:47,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:47,813 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:47,813 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:47,813 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:47,813 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:31:47,813 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:47,814 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:47,814 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:31:47,814 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:31:47,814 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:47,814 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:31:47,815 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:31:47,815 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:31:47,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:31:47,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:31:47,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:47,816 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:47,816 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:31:47,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:31:47,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:47,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:47,817 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:31:47,817 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:31:47,817 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:31:47,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:47,818 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:47,818 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:47,818 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:47,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:47,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:47,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:47,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:47,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:47,819 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:31:47,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:31:47,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:47,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:47,820 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfe359172ad2672387c82471e6d5c8b8ec22ae94 [2021-10-11 02:31:48,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:48,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:48,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:48,089 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:48,089 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:48,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2021-10-11 02:31:48,153 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/data/2c171eea0/951b2c9e2b954b6280046d0531a18a37/FLAG927e0da07 [2021-10-11 02:31:48,759 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:48,760 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2021-10-11 02:31:48,788 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/data/2c171eea0/951b2c9e2b954b6280046d0531a18a37/FLAG927e0da07 [2021-10-11 02:31:49,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/data/2c171eea0/951b2c9e2b954b6280046d0531a18a37 [2021-10-11 02:31:49,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:49,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:49,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:49,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:49,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:49,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:49" (1/1) ... [2021-10-11 02:31:49,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@396bbff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:49, skipping insertion in model container [2021-10-11 02:31:49,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:49" (1/1) ... [2021-10-11 02:31:49,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:49,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:49,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:49,567 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-11 02:31:49,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@64974e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:49, skipping insertion in model container [2021-10-11 02:31:49,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:49,570 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:31:49,573 INFO L168 Benchmark]: Toolchain (without parser) took 545.83 ms. Allocated memory is still 111.1 MB. Free memory was 69.5 MB in the beginning and 83.8 MB in the end (delta: -14.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:49,574 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 111.1 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:49,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.23 ms. Allocated memory is still 111.1 MB. Free memory was 69.3 MB in the beginning and 83.8 MB in the end (delta: -14.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:49,579 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 111.1 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 541.23 ms. Allocated memory is still 111.1 MB. Free memory was 69.3 MB in the beginning and 83.8 MB in the end (delta: -14.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1044]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type 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... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:31:51,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:51,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:51,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:51,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:51,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:51,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:51,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:51,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:51,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:51,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:51,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:51,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:51,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:51,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:51,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:51,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:51,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:51,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:52,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:52,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:52,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:52,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:52,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:52,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:52,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:52,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:52,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:52,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:52,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:52,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:52,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:52,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:52,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:52,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:52,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:52,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:52,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:52,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:52,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:52,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:52,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-11 02:31:52,084 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:52,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:52,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:52,086 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:52,086 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:52,086 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:52,087 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:52,087 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:52,087 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:52,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:31:52,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:31:52,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:52,090 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:52,090 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:31:52,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:31:52,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:52,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:52,091 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:31:52,091 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:31:52,091 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:31:52,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:52,092 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:52,092 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:31:52,092 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:31:52,092 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:52,093 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:52,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:52,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:31:52,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:52,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:52,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:52,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:52,094 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:31:52,095 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:31:52,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:52,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:52,096 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfe359172ad2672387c82471e6d5c8b8ec22ae94 [2021-10-11 02:31:52,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:52,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:52,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:52,525 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:52,526 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:52,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2021-10-11 02:31:52,612 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/data/f62d0b176/97c2741c0b4c4363a222f68e28b2e09e/FLAGa0e2136ba [2021-10-11 02:31:53,332 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:53,333 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2021-10-11 02:31:53,355 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/data/f62d0b176/97c2741c0b4c4363a222f68e28b2e09e/FLAGa0e2136ba [2021-10-11 02:31:53,549 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/data/f62d0b176/97c2741c0b4c4363a222f68e28b2e09e [2021-10-11 02:31:53,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:53,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:53,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:53,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:53,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:53,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:53" (1/1) ... [2021-10-11 02:31:53,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5efb3e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:53, skipping insertion in model container [2021-10-11 02:31:53,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:53" (1/1) ... [2021-10-11 02:31:53,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:53,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:54,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:54,169 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:31:54,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:54,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:54,221 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:31:54,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:54,443 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:31:54,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:54 WrapperNode [2021-10-11 02:31:54,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:54,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:54,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:31:54,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:31:54,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:54" (1/1) ... [2021-10-11 02:31:54,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:54" (1/1) ... [2021-10-11 02:31:54,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:54,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:31:54,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:31:54,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:31:54,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:54" (1/1) ... [2021-10-11 02:31:54,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:54" (1/1) ... [2021-10-11 02:31:54,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:54" (1/1) ... [2021-10-11 02:31:54,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:54" (1/1) ... [2021-10-11 02:31:54,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:54" (1/1) ... [2021-10-11 02:31:54,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:54" (1/1) ... [2021-10-11 02:31:54,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:54" (1/1) ... [2021-10-11 02:31:54,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:31:54,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:31:54,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:31:54,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:31:54,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:54" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:54,677 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-10-11 02:31:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-10-11 02:31:54,677 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-10-11 02:31:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-10-11 02:31:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:31:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:31:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:31:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:31:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:31:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:31:54,680 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-11 02:31:55,357 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:31:55,358 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 02:31:55,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:55 BoogieIcfgContainer [2021-10-11 02:31:55,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:31:55,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:31:55,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:31:55,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:31:55,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:31:53" (1/3) ... [2021-10-11 02:31:55,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5804396b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:55, skipping insertion in model container [2021-10-11 02:31:55,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:54" (2/3) ... [2021-10-11 02:31:55,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5804396b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:55, skipping insertion in model container [2021-10-11 02:31:55,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:55" (3/3) ... [2021-10-11 02:31:55,374 INFO L111 eAbstractionObserver]: Analyzing ICFG fillarray1.i [2021-10-11 02:31:55,388 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:31:55,391 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2021-10-11 02:31:55,392 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:31:55,438 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,438 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,438 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,439 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,439 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,439 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,439 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,439 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,440 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,440 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,440 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,440 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,441 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,441 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,442 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,442 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,443 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,445 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,451 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,451 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,451 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,451 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,452 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,452 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,452 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,452 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,454 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,454 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,454 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,454 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,456 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,456 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,456 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,456 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,457 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,457 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,458 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,458 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,458 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,459 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,459 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,460 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,460 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,460 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,460 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,460 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,461 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,462 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,462 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,462 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,463 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,463 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,466 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,466 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,467 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,467 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,468 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,468 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,469 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,475 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,476 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,476 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,476 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,477 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,477 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,477 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:31:55,481 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-11 02:31:55,492 INFO L253 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-10-11 02:31:55,521 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:31:55,521 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:31:55,521 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:31:55,522 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:31:55,522 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:31:55,522 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:31:55,522 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:31:55,522 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:31:55,535 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:31:55,537 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 94 transitions, 198 flow [2021-10-11 02:31:55,539 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 94 transitions, 198 flow [2021-10-11 02:31:55,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 94 transitions, 198 flow [2021-10-11 02:31:55,600 INFO L129 PetriNetUnfolder]: 8/97 cut-off events. [2021-10-11 02:31:55,602 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-11 02:31:55,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 8/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2021-10-11 02:31:55,615 INFO L116 LiptonReduction]: Number of co-enabled transitions 2280 [2021-10-11 02:31:56,217 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-10-11 02:31:56,377 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-10-11 02:31:58,463 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2021-10-11 02:31:58,636 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-10-11 02:32:00,741 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-10-11 02:32:00,914 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-10-11 02:32:01,058 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-10-11 02:32:01,160 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-10-11 02:32:01,675 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-10-11 02:32:01,935 WARN L197 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-10-11 02:32:02,105 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-10-11 02:32:02,232 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-10-11 02:32:03,097 WARN L197 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2021-10-11 02:32:03,483 WARN L197 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-10-11 02:32:03,997 WARN L197 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2021-10-11 02:32:04,215 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-10-11 02:32:04,688 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-10-11 02:32:05,218 WARN L197 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-10-11 02:32:05,614 WARN L197 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-10-11 02:32:05,897 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-10-11 02:32:06,278 WARN L197 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-10-11 02:32:06,286 INFO L131 LiptonReduction]: Checked pairs total: 6701 [2021-10-11 02:32:06,286 INFO L133 LiptonReduction]: Total number of compositions: 75 [2021-10-11 02:32:06,290 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 45 transitions, 100 flow [2021-10-11 02:32:06,360 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1140 states. [2021-10-11 02:32:06,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states. [2021-10-11 02:32:06,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-11 02:32:06,366 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:06,367 INFO L422 BasicCegarLoop]: trace histogram [1] [2021-10-11 02:32:06,367 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION]=== [2021-10-11 02:32:06,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:06,373 INFO L82 PathProgramCache]: Analyzing trace with hash 368, now seen corresponding path program 1 times [2021-10-11 02:32:06,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:06,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234474276] [2021-10-11 02:32:06,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:06,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:32:06,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:06,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:06,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:06,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234474276] [2021-10-11 02:32:06,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:06,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-10-11 02:32:06,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224843796] [2021-10-11 02:32:06,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:32:06,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:06,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:32:06,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:06,518 INFO L87 Difference]: Start difference. First operand 1140 states. Second operand 2 states. [2021-10-11 02:32:06,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:06,579 INFO L93 Difference]: Finished difference Result 1138 states and 3441 transitions. [2021-10-11 02:32:06,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:32:06,581 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2021-10-11 02:32:06,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:06,611 INFO L225 Difference]: With dead ends: 1138 [2021-10-11 02:32:06,612 INFO L226 Difference]: Without dead ends: 1133 [2021-10-11 02:32:06,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:06,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2021-10-11 02:32:06,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1133. [2021-10-11 02:32:06,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1133 states. [2021-10-11 02:32:06,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 3428 transitions. [2021-10-11 02:32:06,764 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 3428 transitions. Word has length 1 [2021-10-11 02:32:06,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:06,764 INFO L481 AbstractCegarLoop]: Abstraction has 1133 states and 3428 transitions. [2021-10-11 02:32:06,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:32:06,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 3428 transitions. [2021-10-11 02:32:06,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:32:06,765 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:06,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:32:06,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:32:06,981 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION]=== [2021-10-11 02:32:06,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:06,984 INFO L82 PathProgramCache]: Analyzing trace with hash 11513, now seen corresponding path program 1 times [2021-10-11 02:32:06,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:06,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1057261344] [2021-10-11 02:32:06,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:07,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:07,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:07,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:07,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:07,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1057261344] [2021-10-11 02:32:07,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:07,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:32:07,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531773961] [2021-10-11 02:32:07,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:07,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:07,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:07,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:07,129 INFO L87 Difference]: Start difference. First operand 1133 states and 3428 transitions. Second operand 3 states. [2021-10-11 02:32:07,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:07,267 INFO L93 Difference]: Finished difference Result 1132 states and 3427 transitions. [2021-10-11 02:32:07,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:07,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2021-10-11 02:32:07,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:07,293 INFO L225 Difference]: With dead ends: 1132 [2021-10-11 02:32:07,293 INFO L226 Difference]: Without dead ends: 1131 [2021-10-11 02:32:07,294 INFO L677 BasicCegarLoop]: 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 [2021-10-11 02:32:07,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2021-10-11 02:32:07,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1131. [2021-10-11 02:32:07,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1131 states. [2021-10-11 02:32:07,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 3426 transitions. [2021-10-11 02:32:07,388 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 3426 transitions. Word has length 2 [2021-10-11 02:32:07,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:07,388 INFO L481 AbstractCegarLoop]: Abstraction has 1131 states and 3426 transitions. [2021-10-11 02:32:07,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:07,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 3426 transitions. [2021-10-11 02:32:07,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:32:07,389 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:07,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:32:07,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:32:07,607 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION]=== [2021-10-11 02:32:07,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:07,607 INFO L82 PathProgramCache]: Analyzing trace with hash 363970, now seen corresponding path program 1 times [2021-10-11 02:32:07,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:07,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451620281] [2021-10-11 02:32:07,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:07,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:32:07,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:07,808 INFO L348 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2021-10-11 02:32:07,810 INFO L382 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 12 treesize of output 33 [2021-10-11 02:32:07,814 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:32:07,869 INFO L625 ElimStorePlain]: treesize reduction 10, result has 73.7 percent of original size [2021-10-11 02:32:07,885 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 02:32:07,885 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:16, output treesize:16 [2021-10-11 02:32:07,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:07,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:07,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451620281] [2021-10-11 02:32:07,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:07,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:32:07,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069618240] [2021-10-11 02:32:07,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:07,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:07,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:07,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:07,923 INFO L87 Difference]: Start difference. First operand 1131 states and 3426 transitions. Second operand 3 states. [2021-10-11 02:32:08,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:08,031 INFO L93 Difference]: Finished difference Result 1120 states and 3403 transitions. [2021-10-11 02:32:08,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:08,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 02:32:08,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:08,044 INFO L225 Difference]: With dead ends: 1120 [2021-10-11 02:32:08,044 INFO L226 Difference]: Without dead ends: 1120 [2021-10-11 02:32:08,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:08,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2021-10-11 02:32:08,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1120. [2021-10-11 02:32:08,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1120 states. [2021-10-11 02:32:08,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 3403 transitions. [2021-10-11 02:32:08,104 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 3403 transitions. Word has length 3 [2021-10-11 02:32:08,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:08,104 INFO L481 AbstractCegarLoop]: Abstraction has 1120 states and 3403 transitions. [2021-10-11 02:32:08,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:08,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 3403 transitions. [2021-10-11 02:32:08,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:32:08,105 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:08,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:32:08,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:32:08,323 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION]=== [2021-10-11 02:32:08,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:08,323 INFO L82 PathProgramCache]: Analyzing trace with hash 363972, now seen corresponding path program 1 times [2021-10-11 02:32:08,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:08,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774709556] [2021-10-11 02:32:08,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:08,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:08,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:08,503 INFO L348 Elim1Store]: treesize reduction 73, result has 33.0 percent of original size [2021-10-11 02:32:08,503 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 41 [2021-10-11 02:32:08,506 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:32:08,550 INFO L625 ElimStorePlain]: treesize reduction 12, result has 73.3 percent of original size [2021-10-11 02:32:08,553 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-10-11 02:32:08,557 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-10-11 02:32:08,559 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2021-10-11 02:32:08,562 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-10-11 02:32:08,562 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:35 [2021-10-11 02:32:08,565 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-10-11 02:32:08,567 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-10-11 02:32:08,569 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2021-10-11 02:32:08,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:08,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:08,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774709556] [2021-10-11 02:32:08,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:08,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:32:08,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285012557] [2021-10-11 02:32:08,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:08,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:08,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:08,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:08,590 INFO L87 Difference]: Start difference. First operand 1120 states and 3403 transitions. Second operand 3 states. [2021-10-11 02:32:08,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:08,667 INFO L93 Difference]: Finished difference Result 1109 states and 3380 transitions. [2021-10-11 02:32:08,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:08,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 02:32:08,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:08,679 INFO L225 Difference]: With dead ends: 1109 [2021-10-11 02:32:08,679 INFO L226 Difference]: Without dead ends: 1109 [2021-10-11 02:32:08,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:08,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-10-11 02:32:08,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1109. [2021-10-11 02:32:08,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2021-10-11 02:32:08,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 3380 transitions. [2021-10-11 02:32:08,768 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 3380 transitions. Word has length 3 [2021-10-11 02:32:08,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:08,768 INFO L481 AbstractCegarLoop]: Abstraction has 1109 states and 3380 transitions. [2021-10-11 02:32:08,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:08,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 3380 transitions. [2021-10-11 02:32:08,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:32:08,770 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:08,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:32:08,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:32:08,981 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION]=== [2021-10-11 02:32:08,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:08,982 INFO L82 PathProgramCache]: Analyzing trace with hash 349784619, now seen corresponding path program 1 times [2021-10-11 02:32:08,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:08,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597006597] [2021-10-11 02:32:08,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:09,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:32:09,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:09,217 INFO L348 Elim1Store]: treesize reduction 73, result has 33.0 percent of original size [2021-10-11 02:32:09,221 INFO L382 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 53 treesize of output 74 [2021-10-11 02:32:09,231 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:32:09,289 INFO L625 ElimStorePlain]: treesize reduction 12, result has 74.5 percent of original size [2021-10-11 02:32:09,303 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-10-11 02:32:09,312 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2021-10-11 02:32:09,318 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2021-10-11 02:32:09,327 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-10-11 02:32:09,331 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:27, output treesize:37 [2021-10-11 02:32:09,335 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-10-11 02:32:09,340 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2021-10-11 02:32:09,344 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2021-10-11 02:32:09,392 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-10-11 02:32:09,395 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2021-10-11 02:32:09,399 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2021-10-11 02:32:09,446 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-10-11 02:32:09,452 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2021-10-11 02:32:09,458 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2021-10-11 02:32:09,488 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-10-11 02:32:09,490 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2021-10-11 02:32:09,493 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2021-10-11 02:32:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:09,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:09,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597006597] [2021-10-11 02:32:09,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:09,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:32:09,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010772489] [2021-10-11 02:32:09,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:09,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:09,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:09,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:09,526 INFO L87 Difference]: Start difference. First operand 1109 states and 3380 transitions. Second operand 3 states. [2021-10-11 02:32:09,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:09,663 INFO L93 Difference]: Finished difference Result 988 states and 2995 transitions. [2021-10-11 02:32:09,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:09,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:32:09,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:09,674 INFO L225 Difference]: With dead ends: 988 [2021-10-11 02:32:09,675 INFO L226 Difference]: Without dead ends: 988 [2021-10-11 02:32:09,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:09,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2021-10-11 02:32:09,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 988. [2021-10-11 02:32:09,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2021-10-11 02:32:09,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 2995 transitions. [2021-10-11 02:32:09,717 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 2995 transitions. Word has length 5 [2021-10-11 02:32:09,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:09,718 INFO L481 AbstractCegarLoop]: Abstraction has 988 states and 2995 transitions. [2021-10-11 02:32:09,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:09,719 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 2995 transitions. [2021-10-11 02:32:09,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:32:09,719 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:09,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:32:09,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:32:09,941 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION]=== [2021-10-11 02:32:09,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:09,942 INFO L82 PathProgramCache]: Analyzing trace with hash 349784603, now seen corresponding path program 1 times [2021-10-11 02:32:09,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:09,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407223288] [2021-10-11 02:32:09,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:10,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:32:10,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:10,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:10,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:10,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407223288] [2021-10-11 02:32:10,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:10,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:32:10,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709313941] [2021-10-11 02:32:10,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:10,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:10,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:10,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:10,025 INFO L87 Difference]: Start difference. First operand 988 states and 2995 transitions. Second operand 3 states. [2021-10-11 02:32:10,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:10,042 INFO L93 Difference]: Finished difference Result 867 states and 2610 transitions. [2021-10-11 02:32:10,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:10,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:32:10,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:10,051 INFO L225 Difference]: With dead ends: 867 [2021-10-11 02:32:10,051 INFO L226 Difference]: Without dead ends: 867 [2021-10-11 02:32:10,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:10,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2021-10-11 02:32:10,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 867. [2021-10-11 02:32:10,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2021-10-11 02:32:10,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 2610 transitions. [2021-10-11 02:32:10,096 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 2610 transitions. Word has length 5 [2021-10-11 02:32:10,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:10,097 INFO L481 AbstractCegarLoop]: Abstraction has 867 states and 2610 transitions. [2021-10-11 02:32:10,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:10,097 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 2610 transitions. [2021-10-11 02:32:10,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:32:10,098 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:10,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:32:10,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:32:10,315 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION]=== [2021-10-11 02:32:10,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:10,316 INFO L82 PathProgramCache]: Analyzing trace with hash 349784621, now seen corresponding path program 1 times [2021-10-11 02:32:10,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:10,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178285860] [2021-10-11 02:32:10,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:10,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:32:10,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:10,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:10,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178285860] [2021-10-11 02:32:10,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:10,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:32:10,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818147079] [2021-10-11 02:32:10,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:10,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:10,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:10,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:10,428 INFO L87 Difference]: Start difference. First operand 867 states and 2610 transitions. Second operand 3 states. [2021-10-11 02:32:10,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:10,450 INFO L93 Difference]: Finished difference Result 746 states and 2225 transitions. [2021-10-11 02:32:10,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:10,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:32:10,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:10,457 INFO L225 Difference]: With dead ends: 746 [2021-10-11 02:32:10,457 INFO L226 Difference]: Without dead ends: 746 [2021-10-11 02:32:10,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:10,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-10-11 02:32:10,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2021-10-11 02:32:10,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2021-10-11 02:32:10,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 2225 transitions. [2021-10-11 02:32:10,488 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 2225 transitions. Word has length 5 [2021-10-11 02:32:10,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:10,488 INFO L481 AbstractCegarLoop]: Abstraction has 746 states and 2225 transitions. [2021-10-11 02:32:10,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:10,488 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 2225 transitions. [2021-10-11 02:32:10,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:32:10,490 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:10,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:10,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:32:10,705 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION]=== [2021-10-11 02:32:10,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:10,706 INFO L82 PathProgramCache]: Analyzing trace with hash 843852313, now seen corresponding path program 1 times [2021-10-11 02:32:10,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:10,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266036955] [2021-10-11 02:32:10,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:10,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-11 02:32:10,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:10,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 02:32:11,040 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-10-11 02:32:11,041 INFO L348 Elim1Store]: treesize reduction 57, result has 62.5 percent of original size [2021-10-11 02:32:11,042 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 81 treesize of output 163 [2021-10-11 02:32:11,049 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 1] term [2021-10-11 02:32:11,050 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 02:32:11,051 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 1] term [2021-10-11 02:32:11,051 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 02:32:11,052 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-10-11 02:32:11,053 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:32:11,055 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 4, 2, 3, 2, 3, 2, 1] term [2021-10-11 02:32:11,056 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 02:32:11,057 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 3, 2, 3, 2, 1] term [2021-10-11 02:32:11,058 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 02:32:11,078 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 3, 2, 1] term [2021-10-11 02:32:11,078 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:32:11,100 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:32:11,421 WARN L197 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2021-10-11 02:32:11,422 INFO L625 ElimStorePlain]: treesize reduction 151, result has 28.4 percent of original size [2021-10-11 02:32:11,424 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 02:32:11,424 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:62 [2021-10-11 02:32:11,495 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2021-10-11 02:32:11,497 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2021-10-11 02:32:11,598 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:32:11,598 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 31 treesize of output 75 [2021-10-11 02:32:11,603 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:32:11,629 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2021-10-11 02:32:11,632 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 02:32:11,651 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2021-10-11 02:32:11,654 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-11 02:32:11,907 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2021-10-11 02:32:11,907 INFO L625 ElimStorePlain]: treesize reduction 42, result has 75.9 percent of original size [2021-10-11 02:32:11,911 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2021-10-11 02:32:11,911 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:186, output treesize:130 [2021-10-11 02:32:12,087 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-10-11 02:32:12,099 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-10-11 02:32:12,174 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:32:12,175 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 57 [2021-10-11 02:32:12,178 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:32:12,236 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:32:12,237 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 55 [2021-10-11 02:32:12,240 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 02:32:12,335 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:32:12,336 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 97 [2021-10-11 02:32:12,342 INFO L547 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-11 02:32:12,566 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2021-10-11 02:32:12,567 INFO L625 ElimStorePlain]: treesize reduction 28, result has 82.2 percent of original size [2021-10-11 02:32:12,575 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2021-10-11 02:32:12,575 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:147, output treesize:131 [2021-10-11 02:32:12,756 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 43 [2021-10-11 02:32:12,766 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:32:12,845 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:32:12,846 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 69 [2021-10-11 02:32:12,849 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:32:12,911 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:32:12,912 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 69 [2021-10-11 02:32:12,918 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 02:32:12,979 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:32:12,987 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2021-10-11 02:32:12,988 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:83, output treesize:87 [2021-10-11 02:32:13,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:13,073 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:13,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266036955] [2021-10-11 02:32:13,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:13,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:13,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466660929] [2021-10-11 02:32:13,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:32:13,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:13,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:32:13,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:13,075 INFO L87 Difference]: Start difference. First operand 746 states and 2225 transitions. Second operand 6 states. [2021-10-11 02:32:36,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:36,554 INFO L93 Difference]: Finished difference Result 625 states and 1840 transitions. [2021-10-11 02:32:36,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:32:36,555 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2021-10-11 02:32:36,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:36,560 INFO L225 Difference]: With dead ends: 625 [2021-10-11 02:32:36,561 INFO L226 Difference]: Without dead ends: 609 [2021-10-11 02:32:36,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:36,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2021-10-11 02:32:36,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2021-10-11 02:32:36,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2021-10-11 02:32:36,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 1796 transitions. [2021-10-11 02:32:36,583 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 1796 transitions. Word has length 8 [2021-10-11 02:32:36,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:36,583 INFO L481 AbstractCegarLoop]: Abstraction has 609 states and 1796 transitions. [2021-10-11 02:32:36,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:32:36,583 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 1796 transitions. [2021-10-11 02:32:36,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:32:36,585 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:36,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:36,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:32:36,796 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION]=== [2021-10-11 02:32:36,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:36,796 INFO L82 PathProgramCache]: Analyzing trace with hash -123842475, now seen corresponding path program 1 times [2021-10-11 02:32:36,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:36,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802214914] [2021-10-11 02:32:36,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:36,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:32:36,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:36,987 INFO L348 Elim1Store]: treesize reduction 73, result has 33.0 percent of original size [2021-10-11 02:32:36,987 INFO L382 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 39 treesize of output 62 [2021-10-11 02:32:36,991 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:32:37,054 INFO L625 ElimStorePlain]: treesize reduction 26, result has 57.4 percent of original size [2021-10-11 02:32:37,058 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-10-11 02:32:37,059 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2021-10-11 02:32:37,060 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2021-10-11 02:32:37,062 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-10-11 02:32:37,062 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:27, output treesize:37 [2021-10-11 02:32:37,069 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-10-11 02:32:37,070 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2021-10-11 02:32:37,071 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2021-10-11 02:32:37,099 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2021-10-11 02:32:37,100 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2021-10-11 02:32:37,101 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2021-10-11 02:32:37,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:37,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:37,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802214914] [2021-10-11 02:32:37,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:37,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:37,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842453960] [2021-10-11 02:32:37,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:32:37,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:37,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:32:37,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:37,274 INFO L87 Difference]: Start difference. First operand 609 states and 1796 transitions. Second operand 6 states. [2021-10-11 02:32:37,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:37,670 INFO L93 Difference]: Finished difference Result 596 states and 1758 transitions. [2021-10-11 02:32:37,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:32:37,671 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2021-10-11 02:32:37,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:37,677 INFO L225 Difference]: With dead ends: 596 [2021-10-11 02:32:37,677 INFO L226 Difference]: Without dead ends: 596 [2021-10-11 02:32:37,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:32:37,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-10-11 02:32:37,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2021-10-11 02:32:37,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2021-10-11 02:32:37,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 1758 transitions. [2021-10-11 02:32:37,699 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 1758 transitions. Word has length 9 [2021-10-11 02:32:37,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:37,699 INFO L481 AbstractCegarLoop]: Abstraction has 596 states and 1758 transitions. [2021-10-11 02:32:37,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:32:37,700 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 1758 transitions. [2021-10-11 02:32:37,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:32:37,701 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:37,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:37,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:32:37,912 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err1REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION]=== [2021-10-11 02:32:37,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:37,913 INFO L82 PathProgramCache]: Analyzing trace with hash -123842474, now seen corresponding path program 1 times [2021-10-11 02:32:37,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:37,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918311296] [2021-10-11 02:32:37,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:38,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:38,035 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:38,095 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:32:38,095 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:32:38,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:32:38,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:38 BasicIcfg [2021-10-11 02:32:38,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:38,339 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:38,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:38,339 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:38,340 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:55" (3/4) ... [2021-10-11 02:32:38,342 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:32:38,409 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eef792d7-4e46-46c9-a6d4-fdc8d2aab30d/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:32:38,409 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:38,410 INFO L168 Benchmark]: Toolchain (without parser) took 44857.28 ms. Allocated memory was 54.5 MB in the beginning and 151.0 MB in the end (delta: 96.5 MB). Free memory was 31.2 MB in the beginning and 65.1 MB in the end (delta: -34.0 MB). Peak memory consumption was 60.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:38,411 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.2 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:38,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 879.33 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 30.9 MB in the beginning and 39.5 MB in the end (delta: -8.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:38,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.78 ms. Allocated memory is still 71.3 MB. Free memory was 39.5 MB in the beginning and 37.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:38,412 INFO L168 Benchmark]: Boogie Preprocessor took 51.97 ms. Allocated memory is still 71.3 MB. Free memory was 37.1 MB in the beginning and 35.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:38,412 INFO L168 Benchmark]: RCFGBuilder took 770.99 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 35.6 MB in the beginning and 61.8 MB in the end (delta: -26.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:38,413 INFO L168 Benchmark]: TraceAbstraction took 42972.89 ms. Allocated memory was 86.0 MB in the beginning and 151.0 MB in the end (delta: 65.0 MB). Free memory was 61.2 MB in the beginning and 68.3 MB in the end (delta: -7.1 MB). Peak memory consumption was 57.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:38,415 INFO L168 Benchmark]: Witness Printer took 70.39 ms. Allocated memory is still 151.0 MB. Free memory was 68.3 MB in the beginning and 65.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:38,420 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.2 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 879.33 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 30.9 MB in the beginning and 39.5 MB in the end (delta: -8.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.78 ms. Allocated memory is still 71.3 MB. Free memory was 39.5 MB in the beginning and 37.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.97 ms. Allocated memory is still 71.3 MB. Free memory was 37.1 MB in the beginning and 35.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 770.99 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 35.6 MB in the beginning and 61.8 MB in the end (delta: -26.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 42972.89 ms. Allocated memory was 86.0 MB in the beginning and 151.0 MB in the end (delta: 65.0 MB). Free memory was 61.2 MB in the beginning and 68.3 MB in the end (delta: -7.1 MB). Peak memory consumption was 57.3 MB. Max. memory is 16.1 GB. * Witness Printer took 70.39 ms. Allocated memory is still 151.0 MB. Free memory was 68.3 MB in the beginning and 65.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1289 VarBasedMoverChecksPositive, 59 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 46 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.8s, 328 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 10.7s, 92 PlacesBefore, 45 PlacesAfterwards, 94 TransitionsBefore, 45 TransitionsAfterwards, 2280 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 6701 MoverChecksTotal - CounterExampleResult [Line: 1049]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1037] 0 int size; [L1038] 0 int ind; [L1039] 0 int j = 2, i = 1; [L1040] 0 int x, y, z; [L1068] 0 size = __VERIFIER_nondet_int() [L1069] COND FALSE 0 !(size < 1 || size > 20) [L1072] 0 int *a = (int *)malloc(size); [L1073] 0 pthread_t id1, id2; [L1074] 0 ind = 0 [L1075] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, a) VAL [arg={-2147483648:0}, i=1, ind=0, j=2, size=2, x=0, y=0, z=0] [L1042] 1 x = 1 VAL [arg={-2147483648:0}, arg={-2147483648:0}, i=1, ind=0, j=2, size=2, x=1, y=0, z=0] [L1043] 1 y = 1 [L1044] 1 int *a = (int *)arg; VAL [a={-2147483648:0}, arg={-2147483648:0}, arg={-2147483648:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1045] COND FALSE 1 !(y == 1 && z) VAL [a={-2147483648:0}, arg={-2147483648:0}, arg={-2147483648:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1047] COND TRUE 1 ind < size - 1 VAL [a={-2147483648:0}, arg={-2147483648:0}, arg={-2147483648:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1048] 1 ++ind VAL [a={-2147483648:0}, arg={-2147483648:0}, arg={-2147483648:0}, i=1, ind=1, j=2, size=2, x=1, y=1, z=0] [L1049] 1 a[ind] = i - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 86 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 42.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 24.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.8s, HoareTripleCheckerStatistics: 366 SDtfs, 361 SDslu, 411 SDs, 0 SdLazy, 233 SolverSat, 1 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 23.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1140occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 32 ConstructedInterpolants, 15 QuantifiedInterpolants, 5556 SizeOfPredicates, 19 NumberOfNonLiveVariables, 355 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 proved your program to be incorrect! Received shutdown request...