./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-memsafety/fillarray.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs --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 042c5199cb977bee0e9fb33f98d35f27e793036e412b430f7152f110aa730c52 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:33:16,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:33:16,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:33:16,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:33:16,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:33:16,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:33:16,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:33:16,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:33:16,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:33:16,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:33:16,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:33:16,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:33:16,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:33:16,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:33:16,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:33:16,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:33:16,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:33:16,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:33:16,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:33:16,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:33:16,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:33:16,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:33:16,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:33:16,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:33:16,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:33:16,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:33:16,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:33:16,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:33:16,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:33:16,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:33:16,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:33:16,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:33:16,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:33:16,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:33:16,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:33:16,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:33:16,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:33:16,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:33:16,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:33:16,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:33:16,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:33:16,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-19 13:33:16,756 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:33:16,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:33:16,757 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:33:16,757 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:33:16,758 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:33:16,758 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:33:16,758 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:33:16,758 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:33:16,759 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:33:16,759 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:33:16,759 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:33:16,759 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:33:16,760 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:33:16,760 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:33:16,760 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:33:16,761 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:33:16,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 13:33:16,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 13:33:16,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:33:16,762 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:33:16,762 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 13:33:16,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:33:16,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:33:16,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:33:16,763 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 13:33:16,764 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 13:33:16,764 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 13:33:16,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:33:16,764 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:33:16,765 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:33:16,765 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:33:16,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:33:16,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:33:16,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:33:16,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:33:16,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:33:16,767 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:33:16,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:33:16,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:33:16,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:33:16,768 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_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 042c5199cb977bee0e9fb33f98d35f27e793036e412b430f7152f110aa730c52 [2021-11-19 13:33:17,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:33:17,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:33:17,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:33:17,095 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:33:17,096 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:33:17,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-11-19 13:33:17,192 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/data/4d02f07b2/05ffe6129bde44d1897485181cb78f68/FLAG7b1f0430c [2021-11-19 13:33:17,816 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:33:17,817 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-11-19 13:33:17,840 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/data/4d02f07b2/05ffe6129bde44d1897485181cb78f68/FLAG7b1f0430c [2021-11-19 13:33:18,064 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/data/4d02f07b2/05ffe6129bde44d1897485181cb78f68 [2021-11-19 13:33:18,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:33:18,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:33:18,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:33:18,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:33:18,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:33:18,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:33:18" (1/1) ... [2021-11-19 13:33:18,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7764d84c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:18, skipping insertion in model container [2021-11-19 13:33:18,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:33:18" (1/1) ... [2021-11-19 13:33:18,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:33:18,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:33:18,852 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:33:18,864 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) [2021-11-19 13:33:18,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2b0cff97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:18, skipping insertion in model container [2021-11-19 13:33:18,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:33:18,867 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:33:18,870 INFO L158 Benchmark]: Toolchain (without parser) took 798.04ms. Allocated memory is still 96.5MB. Free memory was 61.0MB in the beginning and 67.9MB in the end (delta: -6.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 13:33:18,871 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory was 51.4MB in the beginning and 51.3MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:33:18,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 790.02ms. Allocated memory is still 96.5MB. Free memory was 60.8MB in the beginning and 67.9MB in the end (delta: -7.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 13:33:18,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory was 51.4MB in the beginning and 51.3MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 790.02ms. Allocated memory is still 96.5MB. Free memory was 60.8MB in the beginning and 67.9MB in the end (delta: -7.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1041]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs --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 042c5199cb977bee0e9fb33f98d35f27e793036e412b430f7152f110aa730c52 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:33:21,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:33:21,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:33:21,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:33:21,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:33:21,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:33:21,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:33:21,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:33:21,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:33:21,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:33:21,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:33:21,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:33:21,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:33:21,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:33:21,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:33:21,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:33:21,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:33:21,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:33:21,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:33:21,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:33:21,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:33:21,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:33:21,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:33:21,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:33:21,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:33:21,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:33:21,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:33:21,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:33:21,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:33:21,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:33:21,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:33:21,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:33:21,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:33:21,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:33:21,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:33:21,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:33:21,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:33:21,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:33:21,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:33:21,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:33:21,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:33:21,478 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-19 13:33:21,527 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:33:21,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:33:21,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:33:21,529 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:33:21,529 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:33:21,530 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:33:21,530 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:33:21,530 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:33:21,530 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:33:21,531 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:33:21,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 13:33:21,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 13:33:21,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:33:21,534 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:33:21,535 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 13:33:21,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:33:21,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:33:21,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:33:21,535 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 13:33:21,536 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 13:33:21,536 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 13:33:21,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:33:21,536 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:33:21,537 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:33:21,537 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:33:21,537 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:33:21,537 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:33:21,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:33:21,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:33:21,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:33:21,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:33:21,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:33:21,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:33:21,539 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:33:21,539 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:33:21,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:33:21,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:33:21,540 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_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 042c5199cb977bee0e9fb33f98d35f27e793036e412b430f7152f110aa730c52 [2021-11-19 13:33:22,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:33:22,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:33:22,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:33:22,060 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:33:22,061 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:33:22,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-11-19 13:33:22,134 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/data/5d059e9f4/86f5c4e698ab486e882b196ee8ac0b99/FLAG020afafc0 [2021-11-19 13:33:22,858 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:33:22,858 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-11-19 13:33:22,879 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/data/5d059e9f4/86f5c4e698ab486e882b196ee8ac0b99/FLAG020afafc0 [2021-11-19 13:33:23,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/data/5d059e9f4/86f5c4e698ab486e882b196ee8ac0b99 [2021-11-19 13:33:23,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:33:23,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:33:23,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:33:23,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:33:23,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:33:23,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:33:23" (1/1) ... [2021-11-19 13:33:23,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28340a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:23, skipping insertion in model container [2021-11-19 13:33:23,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:33:23" (1/1) ... [2021-11-19 13:33:23,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:33:23,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:33:23,684 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:33:23,696 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:33:23,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:33:23,741 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:33:23,751 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:33:23,816 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:33:23,909 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:33:23,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:23 WrapperNode [2021-11-19 13:33:23,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:33:23,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:33:23,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:33:23,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:33:23,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:23" (1/1) ... [2021-11-19 13:33:23,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:23" (1/1) ... [2021-11-19 13:33:23,997 INFO L137 Inliner]: procedures = 263, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49 [2021-11-19 13:33:23,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:33:24,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:33:24,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:33:24,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:33:24,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:23" (1/1) ... [2021-11-19 13:33:24,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:23" (1/1) ... [2021-11-19 13:33:24,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:23" (1/1) ... [2021-11-19 13:33:24,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:23" (1/1) ... [2021-11-19 13:33:24,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:23" (1/1) ... [2021-11-19 13:33:24,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:23" (1/1) ... [2021-11-19 13:33:24,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:23" (1/1) ... [2021-11-19 13:33:24,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:33:24,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:33:24,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:33:24,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:33:24,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:23" (1/1) ... [2021-11-19 13:33:24,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:33:24,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:33:24,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:33:24,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:33:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-11-19 13:33:24,153 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-11-19 13:33:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-11-19 13:33:24,154 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-11-19 13:33:24,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:33:24,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:33:24,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:33:24,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:33:24,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:33:24,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:33:24,158 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 13:33:24,273 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:33:24,274 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:33:24,693 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:33:24,700 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:33:24,701 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 13:33:24,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:33:24 BoogieIcfgContainer [2021-11-19 13:33:24,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:33:24,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:33:24,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:33:24,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:33:24,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:33:23" (1/3) ... [2021-11-19 13:33:24,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecd9e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:33:24, skipping insertion in model container [2021-11-19 13:33:24,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:33:23" (2/3) ... [2021-11-19 13:33:24,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecd9e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:33:24, skipping insertion in model container [2021-11-19 13:33:24,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:33:24" (3/3) ... [2021-11-19 13:33:24,710 INFO L111 eAbstractionObserver]: Analyzing ICFG fillarray.i [2021-11-19 13:33:24,715 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:33:24,716 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-11-19 13:33:24,716 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 13:33:24,777 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,777 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,778 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,778 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,778 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,779 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,787 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,787 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,787 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,788 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,788 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,788 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,788 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,788 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,789 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,789 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,789 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,789 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,790 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,790 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,790 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,790 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,791 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,791 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,791 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,791 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,792 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,792 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,793 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,793 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,793 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,793 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,794 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,794 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,794 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,795 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,795 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,795 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,795 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,795 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,796 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,796 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,796 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,796 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,797 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,797 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,797 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,797 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,797 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,798 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,798 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,798 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,798 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,799 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,799 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,799 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,799 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,800 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,800 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,800 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,800 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,801 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,801 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,801 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,801 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,802 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,802 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,802 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,805 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,805 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,805 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,806 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,806 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,806 WARN L322 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,806 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,810 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,810 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,810 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,811 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,811 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,811 WARN L322 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,811 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:33:24,821 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-19 13:33:24,899 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:33:24,909 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:33:24,909 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-11-19 13:33:24,930 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 13:33:24,946 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 90 transitions, 190 flow [2021-11-19 13:33:24,950 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 90 transitions, 190 flow [2021-11-19 13:33:24,952 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 90 transitions, 190 flow [2021-11-19 13:33:25,015 INFO L129 PetriNetUnfolder]: 4/94 cut-off events. [2021-11-19 13:33:25,020 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 13:33:25,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 94 events. 4/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 113 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-11-19 13:33:25,030 INFO L116 LiptonReduction]: Number of co-enabled transitions 1586 [2021-11-19 13:33:32,995 INFO L131 LiptonReduction]: Checked pairs total: 4058 [2021-11-19 13:33:32,995 INFO L133 LiptonReduction]: Total number of compositions: 76 [2021-11-19 13:33:33,012 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 35 transitions, 80 flow [2021-11-19 13:33:33,065 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 613 states, 560 states have (on average 3.0910714285714285) internal successors, (1731), 612 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:33,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 613 states, 560 states have (on average 3.0910714285714285) internal successors, (1731), 612 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:33,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-11-19 13:33:33,078 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:33,079 INFO L514 BasicCegarLoop]: trace histogram [1] [2021-11-19 13:33:33,081 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-19 13:33:33,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:33,086 INFO L85 PathProgramCache]: Analyzing trace with hash 333, now seen corresponding path program 1 times [2021-11-19 13:33:33,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:33,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493331142] [2021-11-19 13:33:33,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:33,095 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:33,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:33,096 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:33,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:33:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:33,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 13:33:33,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:33,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:33,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:33,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:33,169 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:33,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493331142] [2021-11-19 13:33:33,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493331142] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:33,170 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:33,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-11-19 13:33:33,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279993802] [2021-11-19 13:33:33,172 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:33,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 13:33:33,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:33,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 13:33:33,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:33:33,203 INFO L87 Difference]: Start difference. First operand has 613 states, 560 states have (on average 3.0910714285714285) internal successors, (1731), 612 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:33,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:33,400 INFO L93 Difference]: Finished difference Result 611 states and 1729 transitions. [2021-11-19 13:33:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:33:33,417 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2021-11-19 13:33:33,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:33,441 INFO L225 Difference]: With dead ends: 611 [2021-11-19 13:33:33,444 INFO L226 Difference]: Without dead ends: 611 [2021-11-19 13:33:33,445 INFO L932 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 [2021-11-19 13:33:33,452 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:33,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:33:33,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2021-11-19 13:33:33,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 611. [2021-11-19 13:33:33,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 560 states have (on average 3.0875) internal successors, (1729), 610 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:33,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1729 transitions. [2021-11-19 13:33:33,620 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1729 transitions. Word has length 1 [2021-11-19 13:33:33,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:33,620 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 1729 transitions. [2021-11-19 13:33:33,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:33,621 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1729 transitions. [2021-11-19 13:33:33,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-19 13:33:33,621 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:33,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-19 13:33:33,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 13:33:33,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:33,833 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-19 13:33:33,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:33,834 INFO L85 PathProgramCache]: Analyzing trace with hash 10379, now seen corresponding path program 1 times [2021-11-19 13:33:33,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:33,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097485810] [2021-11-19 13:33:33,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:33,835 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:33,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:33,836 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:33,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:33:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:33,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:33:33,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:33,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:33,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:33,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:33,938 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:33,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097485810] [2021-11-19 13:33:33,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097485810] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:33,938 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:33,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-11-19 13:33:33,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239738953] [2021-11-19 13:33:33,939 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:33,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:33:33,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:33,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:33:33,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:33:33,942 INFO L87 Difference]: Start difference. First operand 611 states and 1729 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:34,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:34,109 INFO L93 Difference]: Finished difference Result 610 states and 1728 transitions. [2021-11-19 13:33:34,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:33:34,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-19 13:33:34,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:34,120 INFO L225 Difference]: With dead ends: 610 [2021-11-19 13:33:34,120 INFO L226 Difference]: Without dead ends: 609 [2021-11-19 13:33:34,120 INFO L932 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 [2021-11-19 13:33:34,122 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:34,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 23 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:33:34,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2021-11-19 13:33:34,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2021-11-19 13:33:34,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 559 states have (on average 3.0894454382826475) internal successors, (1727), 608 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:34,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 1727 transitions. [2021-11-19 13:33:34,167 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 1727 transitions. Word has length 2 [2021-11-19 13:33:34,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:34,167 INFO L470 AbstractCegarLoop]: Abstraction has 609 states and 1727 transitions. [2021-11-19 13:33:34,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:34,168 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 1727 transitions. [2021-11-19 13:33:34,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-19 13:33:34,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:34,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-19 13:33:34,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:34,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:34,379 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-19 13:33:34,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:34,380 INFO L85 PathProgramCache]: Analyzing trace with hash 329222, now seen corresponding path program 1 times [2021-11-19 13:33:34,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:34,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022914325] [2021-11-19 13:33:34,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:34,381 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:34,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:34,386 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:34,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:33:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:34,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:33:34,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:34,547 INFO L354 Elim1Store]: treesize reduction 39, result has 29.1 percent of original size [2021-11-19 13:33:34,549 INFO L388 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 21 [2021-11-19 13:33:34,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:34,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:34,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:34,619 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:34,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022914325] [2021-11-19 13:33:34,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022914325] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:34,620 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:34,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-11-19 13:33:34,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024635628] [2021-11-19 13:33:34,620 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:34,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:33:34,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:34,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:33:34,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:33:34,622 INFO L87 Difference]: Start difference. First operand 609 states and 1727 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:34,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:34,764 INFO L93 Difference]: Finished difference Result 601 states and 1711 transitions. [2021-11-19 13:33:34,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:33:34,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-19 13:33:34,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:34,772 INFO L225 Difference]: With dead ends: 601 [2021-11-19 13:33:34,773 INFO L226 Difference]: Without dead ends: 601 [2021-11-19 13:33:34,773 INFO L932 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 [2021-11-19 13:33:34,777 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 22 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:34,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 13 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:33:34,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2021-11-19 13:33:34,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2021-11-19 13:33:34,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 554 states have (on average 3.088447653429603) internal successors, (1711), 600 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:34,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1711 transitions. [2021-11-19 13:33:34,834 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1711 transitions. Word has length 3 [2021-11-19 13:33:34,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:34,835 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 1711 transitions. [2021-11-19 13:33:34,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:34,836 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1711 transitions. [2021-11-19 13:33:34,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-19 13:33:34,836 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:34,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-19 13:33:34,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:35,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:35,048 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-19 13:33:35,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:35,049 INFO L85 PathProgramCache]: Analyzing trace with hash 329224, now seen corresponding path program 1 times [2021-11-19 13:33:35,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:35,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938512542] [2021-11-19 13:33:35,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:35,050 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:35,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:35,051 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:35,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:33:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:35,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:33:35,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:35,168 INFO L354 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2021-11-19 13:33:35,169 INFO L388 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 23 [2021-11-19 13:33:35,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:35,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:35,277 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:35,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938512542] [2021-11-19 13:33:35,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938512542] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:35,277 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:35,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-19 13:33:35,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632979575] [2021-11-19 13:33:35,278 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:35,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:33:35,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:35,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:33:35,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:35,279 INFO L87 Difference]: Start difference. First operand 601 states and 1711 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:35,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:35,470 INFO L93 Difference]: Finished difference Result 593 states and 1695 transitions. [2021-11-19 13:33:35,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:33:35,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-19 13:33:35,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:35,478 INFO L225 Difference]: With dead ends: 593 [2021-11-19 13:33:35,478 INFO L226 Difference]: Without dead ends: 593 [2021-11-19 13:33:35,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:35,480 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 23 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:35,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 21 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:33:35,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-11-19 13:33:35,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2021-11-19 13:33:35,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 549 states have (on average 3.087431693989071) internal successors, (1695), 592 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:35,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1695 transitions. [2021-11-19 13:33:35,505 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1695 transitions. Word has length 3 [2021-11-19 13:33:35,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:35,505 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 1695 transitions. [2021-11-19 13:33:35,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:35,505 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1695 transitions. [2021-11-19 13:33:35,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 13:33:35,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:35,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 13:33:35,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:35,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:35,717 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-19 13:33:35,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:35,718 INFO L85 PathProgramCache]: Analyzing trace with hash 316390640, now seen corresponding path program 1 times [2021-11-19 13:33:35,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:35,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564223888] [2021-11-19 13:33:35,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:35,719 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:35,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:35,720 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:35,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:33:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:35,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:33:35,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:35,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:35,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:35,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:35,833 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:35,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564223888] [2021-11-19 13:33:35,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564223888] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:35,833 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:35,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-11-19 13:33:35,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632687304] [2021-11-19 13:33:35,834 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:35,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:33:35,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:35,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:33:35,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:33:35,835 INFO L87 Difference]: Start difference. First operand 593 states and 1695 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:35,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:35,888 INFO L93 Difference]: Finished difference Result 529 states and 1503 transitions. [2021-11-19 13:33:35,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:33:35,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-19 13:33:35,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:35,894 INFO L225 Difference]: With dead ends: 529 [2021-11-19 13:33:35,895 INFO L226 Difference]: Without dead ends: 529 [2021-11-19 13:33:35,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:33:35,896 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:35,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 11 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:33:35,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2021-11-19 13:33:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2021-11-19 13:33:35,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 494 states have (on average 3.04251012145749) internal successors, (1503), 528 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:35,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 1503 transitions. [2021-11-19 13:33:35,917 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 1503 transitions. Word has length 5 [2021-11-19 13:33:35,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:35,918 INFO L470 AbstractCegarLoop]: Abstraction has 529 states and 1503 transitions. [2021-11-19 13:33:35,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:35,918 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 1503 transitions. [2021-11-19 13:33:35,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 13:33:35,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:35,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 13:33:35,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:36,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:36,134 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-19 13:33:36,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:36,136 INFO L85 PathProgramCache]: Analyzing trace with hash 316390656, now seen corresponding path program 1 times [2021-11-19 13:33:36,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:36,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064399439] [2021-11-19 13:33:36,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:36,137 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:36,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:36,138 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:36,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:33:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:36,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:33:36,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:36,266 INFO L354 Elim1Store]: treesize reduction 39, result has 29.1 percent of original size [2021-11-19 13:33:36,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 28 [2021-11-19 13:33:36,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:36,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:36,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:36,455 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:36,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064399439] [2021-11-19 13:33:36,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064399439] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:36,456 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:36,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-19 13:33:36,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390028634] [2021-11-19 13:33:36,457 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:36,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:33:36,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:36,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:33:36,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:36,458 INFO L87 Difference]: Start difference. First operand 529 states and 1503 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:36,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:36,526 INFO L93 Difference]: Finished difference Result 528 states and 1500 transitions. [2021-11-19 13:33:36,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:33:36,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-19 13:33:36,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:36,532 INFO L225 Difference]: With dead ends: 528 [2021-11-19 13:33:36,532 INFO L226 Difference]: Without dead ends: 528 [2021-11-19 13:33:36,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:36,536 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:36,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 20 Unchecked, 0.1s Time] [2021-11-19 13:33:36,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-11-19 13:33:36,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-11-19 13:33:36,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 493 states have (on average 3.0425963488843815) internal successors, (1500), 527 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:36,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 1500 transitions. [2021-11-19 13:33:36,559 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 1500 transitions. Word has length 5 [2021-11-19 13:33:36,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:36,559 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 1500 transitions. [2021-11-19 13:33:36,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:36,560 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 1500 transitions. [2021-11-19 13:33:36,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 13:33:36,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:36,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 13:33:36,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:36,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:36,772 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-19 13:33:36,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:36,774 INFO L85 PathProgramCache]: Analyzing trace with hash 316390641, now seen corresponding path program 1 times [2021-11-19 13:33:36,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:36,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596329493] [2021-11-19 13:33:36,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:36,774 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:36,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:36,775 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:36,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:33:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:36,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:33:36,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:36,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:36,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:36,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:36,891 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:36,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596329493] [2021-11-19 13:33:36,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596329493] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:36,891 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:36,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-11-19 13:33:36,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715951605] [2021-11-19 13:33:36,892 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:36,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:33:36,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:36,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:33:36,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:33:36,894 INFO L87 Difference]: Start difference. First operand 528 states and 1500 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:36,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:36,941 INFO L93 Difference]: Finished difference Result 464 states and 1308 transitions. [2021-11-19 13:33:36,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:33:36,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-19 13:33:36,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:36,946 INFO L225 Difference]: With dead ends: 464 [2021-11-19 13:33:36,946 INFO L226 Difference]: Without dead ends: 464 [2021-11-19 13:33:36,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:33:36,948 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:36,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 11 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:33:36,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-11-19 13:33:36,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2021-11-19 13:33:36,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 438 states have (on average 2.9863013698630136) internal successors, (1308), 463 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:36,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1308 transitions. [2021-11-19 13:33:36,967 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 1308 transitions. Word has length 5 [2021-11-19 13:33:36,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:36,968 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 1308 transitions. [2021-11-19 13:33:36,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:36,969 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 1308 transitions. [2021-11-19 13:33:36,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 13:33:36,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:36,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 13:33:36,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:37,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:37,181 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-19 13:33:37,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:37,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1217272844, now seen corresponding path program 1 times [2021-11-19 13:33:37,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:37,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318446128] [2021-11-19 13:33:37,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:37,182 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:37,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:37,183 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:37,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:33:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:37,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:33:37,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:37,300 INFO L354 Elim1Store]: treesize reduction 39, result has 29.1 percent of original size [2021-11-19 13:33:37,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 28 [2021-11-19 13:33:37,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:37,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:37,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:37,460 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:37,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318446128] [2021-11-19 13:33:37,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [318446128] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:37,461 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:37,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-19 13:33:37,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226790719] [2021-11-19 13:33:37,461 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:37,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:33:37,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:37,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:33:37,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:37,463 INFO L87 Difference]: Start difference. First operand 464 states and 1308 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:37,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:37,493 INFO L93 Difference]: Finished difference Result 473 states and 1332 transitions. [2021-11-19 13:33:37,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:33:37,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-19 13:33:37,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:37,498 INFO L225 Difference]: With dead ends: 473 [2021-11-19 13:33:37,499 INFO L226 Difference]: Without dead ends: 473 [2021-11-19 13:33:37,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:37,500 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:37,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 23 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2021-11-19 13:33:37,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-11-19 13:33:37,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2021-11-19 13:33:37,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 447 states have (on average 2.9798657718120807) internal successors, (1332), 472 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:37,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 1332 transitions. [2021-11-19 13:33:37,521 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 1332 transitions. Word has length 6 [2021-11-19 13:33:37,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:37,522 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 1332 transitions. [2021-11-19 13:33:37,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:37,522 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 1332 transitions. [2021-11-19 13:33:37,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 13:33:37,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:37,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 13:33:37,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-19 13:33:37,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:37,737 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-19 13:33:37,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:37,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1218175192, now seen corresponding path program 1 times [2021-11-19 13:33:37,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:37,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508736458] [2021-11-19 13:33:37,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:37,738 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:37,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:37,739 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:37,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:33:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:37,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:33:37,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:37,853 INFO L354 Elim1Store]: treesize reduction 39, result has 29.1 percent of original size [2021-11-19 13:33:37,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 28 [2021-11-19 13:33:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:37,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:37,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:37,987 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:37,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508736458] [2021-11-19 13:33:37,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508736458] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:37,988 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:37,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-19 13:33:37,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110888317] [2021-11-19 13:33:37,988 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:37,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:33:37,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:37,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:33:37,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:37,990 INFO L87 Difference]: Start difference. First operand 473 states and 1332 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:38,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:38,046 INFO L93 Difference]: Finished difference Result 476 states and 1342 transitions. [2021-11-19 13:33:38,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:33:38,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-19 13:33:38,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:38,051 INFO L225 Difference]: With dead ends: 476 [2021-11-19 13:33:38,051 INFO L226 Difference]: Without dead ends: 476 [2021-11-19 13:33:38,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:38,053 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:38,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 17 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2021-11-19 13:33:38,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-11-19 13:33:38,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2021-11-19 13:33:38,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 450 states have (on average 2.982222222222222) internal successors, (1342), 475 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:38,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 1342 transitions. [2021-11-19 13:33:38,073 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 1342 transitions. Word has length 6 [2021-11-19 13:33:38,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:38,073 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 1342 transitions. [2021-11-19 13:33:38,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:38,074 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 1342 transitions. [2021-11-19 13:33:38,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 13:33:38,076 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:38,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:33:38,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:38,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:38,292 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-19 13:33:38,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:38,292 INFO L85 PathProgramCache]: Analyzing trace with hash -919256670, now seen corresponding path program 1 times [2021-11-19 13:33:38,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:38,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674411859] [2021-11-19 13:33:38,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:38,293 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:38,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:38,294 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:38,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 13:33:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:38,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:33:38,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:38,400 INFO L354 Elim1Store]: treesize reduction 39, result has 29.1 percent of original size [2021-11-19 13:33:38,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 29 [2021-11-19 13:33:38,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:38,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:38,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:38,556 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:38,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674411859] [2021-11-19 13:33:38,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674411859] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:38,556 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:38,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-19 13:33:38,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092825243] [2021-11-19 13:33:38,557 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:38,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:33:38,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:38,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:33:38,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:38,558 INFO L87 Difference]: Start difference. First operand 476 states and 1342 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:38,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:38,612 INFO L93 Difference]: Finished difference Result 479 states and 1346 transitions. [2021-11-19 13:33:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:33:38,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 13:33:38,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:38,617 INFO L225 Difference]: With dead ends: 479 [2021-11-19 13:33:38,618 INFO L226 Difference]: Without dead ends: 479 [2021-11-19 13:33:38,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:38,619 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:38,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 17 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2021-11-19 13:33:38,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2021-11-19 13:33:38,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2021-11-19 13:33:38,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 453 states have (on average 2.9713024282560707) internal successors, (1346), 478 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:38,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 1346 transitions. [2021-11-19 13:33:38,637 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 1346 transitions. Word has length 7 [2021-11-19 13:33:38,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:38,638 INFO L470 AbstractCegarLoop]: Abstraction has 479 states and 1346 transitions. [2021-11-19 13:33:38,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:38,638 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 1346 transitions. [2021-11-19 13:33:38,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 13:33:38,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:38,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:33:38,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:38,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:38,850 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-19 13:33:38,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:38,851 INFO L85 PathProgramCache]: Analyzing trace with hash -919248052, now seen corresponding path program 1 times [2021-11-19 13:33:38,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:38,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476407377] [2021-11-19 13:33:38,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:38,852 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:38,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:38,853 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:38,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 13:33:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:38,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:33:38,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:38,962 INFO L354 Elim1Store]: treesize reduction 39, result has 29.1 percent of original size [2021-11-19 13:33:38,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 29 [2021-11-19 13:33:39,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:39,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:39,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:39,111 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:39,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476407377] [2021-11-19 13:33:39,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476407377] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:39,111 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:39,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-19 13:33:39,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010514019] [2021-11-19 13:33:39,112 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:39,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:33:39,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:39,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:33:39,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:39,113 INFO L87 Difference]: Start difference. First operand 479 states and 1346 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:39,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:39,132 INFO L93 Difference]: Finished difference Result 488 states and 1379 transitions. [2021-11-19 13:33:39,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:33:39,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 13:33:39,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:39,137 INFO L225 Difference]: With dead ends: 488 [2021-11-19 13:33:39,137 INFO L226 Difference]: Without dead ends: 488 [2021-11-19 13:33:39,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:33:39,139 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:39,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 23 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2021-11-19 13:33:39,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-11-19 13:33:39,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2021-11-19 13:33:39,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 462 states have (on average 2.984848484848485) internal successors, (1379), 487 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:39,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 1379 transitions. [2021-11-19 13:33:39,157 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 1379 transitions. Word has length 7 [2021-11-19 13:33:39,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:39,158 INFO L470 AbstractCegarLoop]: Abstraction has 488 states and 1379 transitions. [2021-11-19 13:33:39,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:39,158 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 1379 transitions. [2021-11-19 13:33:39,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 13:33:39,159 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:39,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:33:39,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:39,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:39,371 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err0REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-19 13:33:39,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:39,371 INFO L85 PathProgramCache]: Analyzing trace with hash -921623750, now seen corresponding path program 1 times [2021-11-19 13:33:39,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:39,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745061770] [2021-11-19 13:33:39,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:39,372 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:39,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:39,373 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:39,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 13:33:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:33:39,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:33:39,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:33:39,489 INFO L354 Elim1Store]: treesize reduction 39, result has 29.1 percent of original size [2021-11-19 13:33:39,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 28 [2021-11-19 13:33:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:39,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:33:39,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:33:39,741 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:33:39,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745061770] [2021-11-19 13:33:39,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745061770] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:33:39,742 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:33:39,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-11-19 13:33:39,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478906613] [2021-11-19 13:33:39,742 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:33:39,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:33:39,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:33:39,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:33:39,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:33:39,743 INFO L87 Difference]: Start difference. First operand 488 states and 1379 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:39,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:33:39,823 INFO L93 Difference]: Finished difference Result 489 states and 1382 transitions. [2021-11-19 13:33:39,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:33:39,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 13:33:39,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:33:39,828 INFO L225 Difference]: With dead ends: 489 [2021-11-19 13:33:39,828 INFO L226 Difference]: Without dead ends: 489 [2021-11-19 13:33:39,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:33:39,829 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:33:39,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 8 Unchecked, 0.1s Time] [2021-11-19 13:33:39,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2021-11-19 13:33:39,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2021-11-19 13:33:39,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 463 states have (on average 2.9848812095032398) internal successors, (1382), 488 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:39,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 1382 transitions. [2021-11-19 13:33:39,848 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 1382 transitions. Word has length 7 [2021-11-19 13:33:39,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:33:39,849 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 1382 transitions. [2021-11-19 13:33:39,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:33:39,849 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 1382 transitions. [2021-11-19 13:33:39,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 13:33:39,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:33:39,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:33:39,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-19 13:33:40,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:40,062 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err1REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-19 13:33:40,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:33:40,062 INFO L85 PathProgramCache]: Analyzing trace with hash -921623749, now seen corresponding path program 1 times [2021-11-19 13:33:40,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:33:40,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341136145] [2021-11-19 13:33:40,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:33:40,063 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:33:40,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:33:40,064 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:33:40,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 13:33:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 13:33:40,125 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 13:33:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 13:33:40,175 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-19 13:33:40,176 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 13:33:40,176 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t1Err1REQUIRES_VIOLATION (17 of 18 remaining) [2021-11-19 13:33:40,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (16 of 18 remaining) [2021-11-19 13:33:40,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (15 of 18 remaining) [2021-11-19 13:33:40,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION (14 of 18 remaining) [2021-11-19 13:33:40,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (13 of 18 remaining) [2021-11-19 13:33:40,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (12 of 18 remaining) [2021-11-19 13:33:40,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (11 of 18 remaining) [2021-11-19 13:33:40,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (10 of 18 remaining) [2021-11-19 13:33:40,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE (9 of 18 remaining) [2021-11-19 13:33:40,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (8 of 18 remaining) [2021-11-19 13:33:40,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (7 of 18 remaining) [2021-11-19 13:33:40,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATION (6 of 18 remaining) [2021-11-19 13:33:40,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1REQUIRES_VIOLATION (5 of 18 remaining) [2021-11-19 13:33:40,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATION (4 of 18 remaining) [2021-11-19 13:33:40,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATION (3 of 18 remaining) [2021-11-19 13:33:40,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATION (2 of 18 remaining) [2021-11-19 13:33:40,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATION (1 of 18 remaining) [2021-11-19 13:33:40,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATION (0 of 18 remaining) [2021-11-19 13:33:40,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 13:33:40,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:33:40,383 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:33:40,386 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-19 13:33:40,387 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 13:33:40,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:33:40 BasicIcfg [2021-11-19 13:33:40,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 13:33:40,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 13:33:40,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 13:33:40,411 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 13:33:40,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:33:24" (3/4) ... [2021-11-19 13:33:40,413 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 13:33:40,453 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 13:33:40,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 13:33:40,453 INFO L158 Benchmark]: Toolchain (without parser) took 17398.45ms. Allocated memory was 73.4MB in the beginning and 125.8MB in the end (delta: 52.4MB). Free memory was 53.0MB in the beginning and 67.2MB in the end (delta: -14.1MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2021-11-19 13:33:40,454 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 73.4MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:33:40,454 INFO L158 Benchmark]: CACSL2BoogieTranslator took 853.59ms. Allocated memory is still 73.4MB. Free memory was 52.9MB in the beginning and 33.6MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-19 13:33:40,454 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.92ms. Allocated memory is still 73.4MB. Free memory was 33.6MB in the beginning and 55.9MB in the end (delta: -22.3MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2021-11-19 13:33:40,455 INFO L158 Benchmark]: Boogie Preprocessor took 68.88ms. Allocated memory is still 73.4MB. Free memory was 55.9MB in the beginning and 54.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:33:40,455 INFO L158 Benchmark]: RCFGBuilder took 617.73ms. Allocated memory is still 73.4MB. Free memory was 54.5MB in the beginning and 40.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-19 13:33:40,456 INFO L158 Benchmark]: TraceAbstraction took 15705.60ms. Allocated memory was 73.4MB in the beginning and 125.8MB in the end (delta: 52.4MB). Free memory was 40.2MB in the beginning and 70.3MB in the end (delta: -30.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2021-11-19 13:33:40,456 INFO L158 Benchmark]: Witness Printer took 42.26ms. Allocated memory is still 125.8MB. Free memory was 70.3MB in the beginning and 67.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 13:33:40,458 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 73.4MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 853.59ms. Allocated memory is still 73.4MB. Free memory was 52.9MB in the beginning and 33.6MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.92ms. Allocated memory is still 73.4MB. Free memory was 33.6MB in the beginning and 55.9MB in the end (delta: -22.3MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.88ms. Allocated memory is still 73.4MB. Free memory was 55.9MB in the beginning and 54.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 617.73ms. Allocated memory is still 73.4MB. Free memory was 54.5MB in the beginning and 40.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 15705.60ms. Allocated memory was 73.4MB in the beginning and 125.8MB in the end (delta: 52.4MB). Free memory was 40.2MB in the beginning and 70.3MB in the end (delta: -30.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Witness Printer took 42.26ms. Allocated memory is still 125.8MB. Free memory was 70.3MB in the beginning and 67.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.0s, 92 PlacesBefore, 39 PlacesAfterwards, 90 TransitionsBefore, 35 TransitionsAfterwards, 1586 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 76 TotalNumberOfCompositions, 4058 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1945, positive: 1782, positive conditional: 0, positive unconditional: 1782, negative: 163, negative conditional: 0, negative unconditional: 163, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 914, positive: 876, positive conditional: 0, positive unconditional: 876, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 914, positive: 871, positive conditional: 0, positive unconditional: 871, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 670, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 597, negative conditional: 0, negative unconditional: 597, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1945, positive: 906, positive conditional: 0, positive unconditional: 906, negative: 125, negative conditional: 0, negative unconditional: 125, unknown: 914, unknown conditional: 0, unknown unconditional: 914] , Statistics on independence cache: Total cache size (in pairs): 169, Positive cache size: 149, Positive conditional cache size: 0, Positive unconditional cache size: 149, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1044]: 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; [L1057] 0 size = __VERIFIER_nondet_int() [L1058] COND FALSE 0 !(size < 1 || size > 20) [L1061] 0 int *a = (int *)malloc(size); [L1062] 0 pthread_t id1, id2; [L1063] 0 ind = 0 [L1064] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, a) VAL [\old(argc)=5, a={2:0}, arg={2:0}, argc=5, argv={9:6}, argv={9:6}, i=1, id1={7:0}, id2={15:0}, ind=0, j=2, pthread_create(&id1, ((void *)0), t1, a)=0, size=2] [L1041] 1 int *a = (int *)arg; VAL [a={2:0}, arg={2:0}, arg={2:0}, i=1, ind=0, j=2, size=2] [L1042] COND TRUE 1 ind < size - 1 VAL [a={2:0}, arg={2:0}, arg={2:0}, i=1, ind=0, j=2, size=2] [L1043] 1 ++ind VAL [a={2:0}, arg={2:0}, arg={2:0}, i=1, ind=1, j=2, size=2] [L1044] 1 a[ind] = i - UnprovableResult [Line: 1056]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1064]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1064]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1065]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1065]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1066]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1066]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1066]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1065]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1064]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1052]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1052]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 112 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 15.5s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 217 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 82 IncrementalHoareTripleChecker+Unchecked, 145 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 307 IncrementalHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 128 mSDtfsCounter, 307 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=613occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 90 ConstructedInterpolants, 32 QuantifiedInterpolants, 1141 SizeOfPredicates, 20 NumberOfNonLiveVariables, 530 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 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! [2021-11-19 13:33:40,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac44e30-ff83-4267-9aa4-cfaeca821231/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)