./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG --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 ............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG --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 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:43:06,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:43:06,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:43:06,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:43:06,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:43:06,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:43:06,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:43:06,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:43:06,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:43:06,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:43:06,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:43:06,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:43:06,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:43:06,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:43:06,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:43:06,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:43:06,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:43:06,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:43:06,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:43:06,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:43:06,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:43:06,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:43:06,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:43:06,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:43:06,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:43:06,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:43:06,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:43:06,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:43:06,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:43:06,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:43:06,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:43:06,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:43:06,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:43:06,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:43:06,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:43:06,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:43:06,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:43:06,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:43:06,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:43:06,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:43:06,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:43:06,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-29 05:43:06,141 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:43:06,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:43:06,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:43:06,143 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:43:06,143 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:43:06,143 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:43:06,143 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:43:06,144 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:43:06,144 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:43:06,144 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:43:06,144 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:43:06,144 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:43:06,145 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:43:06,145 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:43:06,145 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:43:06,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 05:43:06,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 05:43:06,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:43:06,147 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:43:06,147 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 05:43:06,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:43:06,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:43:06,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:43:06,148 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 05:43:06,148 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 05:43:06,148 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 05:43:06,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:43:06,148 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:43:06,149 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:43:06,149 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:43:06,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:43:06,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:43:06,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:43:06,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:43:06,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:43:06,150 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:43:06,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:43:06,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:43:06,151 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:43:06,151 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_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 042c5199cb977bee0e9fb33f98d35f27e793036e412b430f7152f110aa730c52 [2021-10-29 05:43:06,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:43:06,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:43:06,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:43:06,477 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:43:06,478 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:43:06,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-10-29 05:43:06,552 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/data/5815fc9c0/a06af7a626b0406e8a1eebc1628d6990/FLAGf4d84e5c7 [2021-10-29 05:43:07,165 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:43:07,167 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-10-29 05:43:07,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/data/5815fc9c0/a06af7a626b0406e8a1eebc1628d6990/FLAGf4d84e5c7 [2021-10-29 05:43:07,398 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/data/5815fc9c0/a06af7a626b0406e8a1eebc1628d6990 [2021-10-29 05:43:07,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:43:07,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:43:07,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:43:07,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:43:07,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:43:07,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:43:07" (1/1) ... [2021-10-29 05:43:07,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@397dd113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:07, skipping insertion in model container [2021-10-29 05:43:07,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:43:07" (1/1) ... [2021-10-29 05:43:07,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:43:07,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:43:08,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:43:08,028 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-29 05:43:08,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3e9fe91e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:08, skipping insertion in model container [2021-10-29 05:43:08,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:43:08,030 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 05:43:08,032 INFO L168 Benchmark]: Toolchain (without parser) took 628.96 ms. Allocated memory is still 102.8 MB. Free memory was 68.4 MB in the beginning and 75.7 MB in the end (delta: -7.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:43:08,033 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 57.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:43:08,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 624.81 ms. Allocated memory is still 102.8 MB. Free memory was 68.4 MB in the beginning and 75.7 MB in the end (delta: -7.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:43:08,036 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 57.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 624.81 ms. Allocated memory is still 102.8 MB. Free memory was 68.4 MB in the beginning and 75.7 MB in the end (delta: -7.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:43:10,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:43:10,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:43:10,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:43:10,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:43:10,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:43:10,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:43:10,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:43:10,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:43:10,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:43:10,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:43:10,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:43:10,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:43:10,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:43:10,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:43:10,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:43:10,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:43:10,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:43:10,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:43:10,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:43:10,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:43:10,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:43:10,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:43:10,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:43:10,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:43:10,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:43:10,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:43:10,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:43:10,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:43:10,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:43:10,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:43:10,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:43:10,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:43:10,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:43:10,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:43:10,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:43:10,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:43:10,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:43:10,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:43:10,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:43:10,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:43:10,810 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-29 05:43:10,854 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:43:10,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:43:10,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:43:10,856 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:43:10,857 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:43:10,857 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:43:10,857 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:43:10,857 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:43:10,857 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:43:10,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 05:43:10,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 05:43:10,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:43:10,861 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:43:10,861 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 05:43:10,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:43:10,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:43:10,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:43:10,862 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 05:43:10,862 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 05:43:10,862 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 05:43:10,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:43:10,862 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:43:10,863 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:43:10,863 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:43:10,863 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:43:10,863 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:43:10,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:43:10,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:43:10,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:43:10,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:43:10,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:43:10,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:43:10,866 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:43:10,866 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:43:10,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:43:10,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:43:10,866 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_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 042c5199cb977bee0e9fb33f98d35f27e793036e412b430f7152f110aa730c52 [2021-10-29 05:43:11,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:43:11,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:43:11,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:43:11,401 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:43:11,402 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:43:11,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-10-29 05:43:11,476 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/data/33e36143e/52b9becbe5ad4b4d8bc440e2ba775ad9/FLAG6ea2351c5 [2021-10-29 05:43:12,188 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:43:12,189 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-10-29 05:43:12,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/data/33e36143e/52b9becbe5ad4b4d8bc440e2ba775ad9/FLAG6ea2351c5 [2021-10-29 05:43:12,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/data/33e36143e/52b9becbe5ad4b4d8bc440e2ba775ad9 [2021-10-29 05:43:12,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:43:12,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:43:12,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:43:12,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:43:12,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:43:12,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:43:12" (1/1) ... [2021-10-29 05:43:12,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b9fbaef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:12, skipping insertion in model container [2021-10-29 05:43:12,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:43:12" (1/1) ... [2021-10-29 05:43:12,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:43:12,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:43:13,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:43:13,091 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 05:43:13,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:43:13,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:43:13,152 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:43:13,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:43:13,311 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:43:13,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:13 WrapperNode [2021-10-29 05:43:13,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:43:13,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:43:13,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:43:13,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:43:13,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:13" (1/1) ... [2021-10-29 05:43:13,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:13" (1/1) ... [2021-10-29 05:43:13,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:43:13,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:43:13,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:43:13,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:43:13,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:13" (1/1) ... [2021-10-29 05:43:13,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:13" (1/1) ... [2021-10-29 05:43:13,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:13" (1/1) ... [2021-10-29 05:43:13,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:13" (1/1) ... [2021-10-29 05:43:13,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:13" (1/1) ... [2021-10-29 05:43:13,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:13" (1/1) ... [2021-10-29 05:43:13,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:13" (1/1) ... [2021-10-29 05:43:13,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:43:13,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:43:13,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:43:13,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:43:13,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:13" (1/1) ... [2021-10-29 05:43:13,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:43:13,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:43:13,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:43:13,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:43:13,580 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-10-29 05:43:13,580 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-10-29 05:43:13,580 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-10-29 05:43:13,581 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-10-29 05:43:13,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:43:13,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:43:13,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:43:13,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 05:43:13,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:43:13,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:43:13,583 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-29 05:43:14,084 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:43:14,085 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-29 05:43:14,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:43:14 BoogieIcfgContainer [2021-10-29 05:43:14,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:43:14,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:43:14,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:43:14,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:43:14,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:43:12" (1/3) ... [2021-10-29 05:43:14,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c28d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:43:14, skipping insertion in model container [2021-10-29 05:43:14,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:43:13" (2/3) ... [2021-10-29 05:43:14,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c28d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:43:14, skipping insertion in model container [2021-10-29 05:43:14,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:43:14" (3/3) ... [2021-10-29 05:43:14,096 INFO L111 eAbstractionObserver]: Analyzing ICFG fillarray.i [2021-10-29 05:43:14,101 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:43:14,102 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-10-29 05:43:14,102 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 05:43:14,135 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,135 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,135 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,136 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,136 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,136 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,136 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,137 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,137 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,137 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,138 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,138 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,139 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,139 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,139 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,139 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,145 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,145 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,147 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,148 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,148 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,148 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,148 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,149 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,149 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,150 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,150 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,150 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,152 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,152 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,152 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,152 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,153 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,153 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,154 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,154 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,154 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,154 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,155 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,155 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,155 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,155 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,156 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,158 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,158 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,158 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,158 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,158 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,159 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,159 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,159 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,160 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,160 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,160 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,160 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,161 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,161 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,161 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,161 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,161 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,162 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,162 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,162 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,163 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,163 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,163 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,164 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,164 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,170 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,170 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,170 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,170 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,171 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,171 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,171 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,177 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,178 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,178 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,178 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,178 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,179 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,179 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:43:14,186 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-29 05:43:14,254 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:43:14,261 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 [2021-10-29 05:43:14,261 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-10-29 05:43:14,277 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 05:43:14,291 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 86 transitions, 182 flow [2021-10-29 05:43:14,294 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 86 transitions, 182 flow [2021-10-29 05:43:14,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 86 transitions, 182 flow [2021-10-29 05:43:14,342 INFO L129 PetriNetUnfolder]: 4/89 cut-off events. [2021-10-29 05:43:14,342 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-29 05:43:14,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 89 events. 4/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 111 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2021-10-29 05:43:14,350 INFO L116 LiptonReduction]: Number of co-enabled transitions 1534 [2021-10-29 05:43:24,789 INFO L131 LiptonReduction]: Checked pairs total: 4096 [2021-10-29 05:43:24,790 INFO L133 LiptonReduction]: Total number of compositions: 80 [2021-10-29 05:43:24,809 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 35 transitions, 80 flow [2021-10-29 05:43:24,873 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) [2021-10-29 05:43:24,877 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) [2021-10-29 05:43:24,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-29 05:43:24,882 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:43:24,883 INFO L513 BasicCegarLoop]: trace histogram [1] [2021-10-29 05:43:24,883 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-29 05:43:24,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:43:24,889 INFO L85 PathProgramCache]: Analyzing trace with hash 329, now seen corresponding path program 1 times [2021-10-29 05:43:24,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:43:24,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066567958] [2021-10-29 05:43:24,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:43:24,903 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:43:24,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:43:24,906 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:43:24,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:43:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:43:24,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:43:24,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:43:24,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:24,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:43:24,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:24,988 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:43:24,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066567958] [2021-10-29 05:43:24,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066567958] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:43:24,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:43:24,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-29 05:43:24,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797435503] [2021-10-29 05:43:24,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:43:24,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:43:25,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:43:25,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:43:25,020 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) [2021-10-29 05:43:25,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:43:25,064 INFO L93 Difference]: Finished difference Result 611 states and 1729 transitions. [2021-10-29 05:43:25,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:43:25,065 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 [2021-10-29 05:43:25,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:43:25,088 INFO L225 Difference]: With dead ends: 611 [2021-10-29 05:43:25,089 INFO L226 Difference]: Without dead ends: 611 [2021-10-29 05:43:25,090 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:43:25,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2021-10-29 05:43:25,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 611. [2021-10-29 05:43:25,171 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) [2021-10-29 05:43:25,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1729 transitions. [2021-10-29 05:43:25,179 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1729 transitions. Word has length 1 [2021-10-29 05:43:25,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:43:25,179 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 1729 transitions. [2021-10-29 05:43:25,179 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) [2021-10-29 05:43:25,180 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1729 transitions. [2021-10-29 05:43:25,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-29 05:43:25,180 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:43:25,180 INFO L513 BasicCegarLoop]: trace histogram [1, 1] [2021-10-29 05:43:25,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:43:25,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:43:25,392 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-29 05:43:25,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:43:25,393 INFO L85 PathProgramCache]: Analyzing trace with hash 10340, now seen corresponding path program 1 times [2021-10-29 05:43:25,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:43:25,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911690592] [2021-10-29 05:43:25,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:43:25,398 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:43:25,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:43:25,399 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:43:25,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:43:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:43:25,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:43:25,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:43:25,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:25,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:43:25,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:25,532 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:43:25,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911690592] [2021-10-29 05:43:25,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911690592] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:43:25,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:43:25,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-29 05:43:25,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515754188] [2021-10-29 05:43:25,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:43:25,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:43:25,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:43:25,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:43:25,554 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) [2021-10-29 05:43:25,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:43:25,709 INFO L93 Difference]: Finished difference Result 610 states and 1728 transitions. [2021-10-29 05:43:25,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:43:25,713 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 [2021-10-29 05:43:25,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:43:25,722 INFO L225 Difference]: With dead ends: 610 [2021-10-29 05:43:25,722 INFO L226 Difference]: Without dead ends: 609 [2021-10-29 05:43:25,726 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:43:25,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2021-10-29 05:43:25,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2021-10-29 05:43:25,801 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) [2021-10-29 05:43:25,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 1727 transitions. [2021-10-29 05:43:25,805 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 1727 transitions. Word has length 2 [2021-10-29 05:43:25,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:43:25,805 INFO L470 AbstractCegarLoop]: Abstraction has 609 states and 1727 transitions. [2021-10-29 05:43:25,806 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) [2021-10-29 05:43:25,806 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 1727 transitions. [2021-10-29 05:43:25,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 05:43:25,806 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:43:25,806 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-29 05:43:25,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:43:26,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:43:26,007 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-29 05:43:26,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:43:26,008 INFO L85 PathProgramCache]: Analyzing trace with hash 325131, now seen corresponding path program 1 times [2021-10-29 05:43:26,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:43:26,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286374763] [2021-10-29 05:43:26,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:43:26,009 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:43:26,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:43:26,010 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:43:26,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:43:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:43:26,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 05:43:26,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:43:26,234 INFO L354 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2021-10-29 05:43:26,236 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 [2021-10-29 05:43:26,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:26,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:43:26,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:26,422 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:43:26,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286374763] [2021-10-29 05:43:26,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286374763] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:43:26,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:43:26,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-29 05:43:26,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128099675] [2021-10-29 05:43:26,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:43:26,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:43:26,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:43:26,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:43:26,425 INFO L87 Difference]: Start difference. First operand 609 states and 1727 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) [2021-10-29 05:43:26,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:43:26,548 INFO L93 Difference]: Finished difference Result 601 states and 1711 transitions. [2021-10-29 05:43:26,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:43:26,550 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 [2021-10-29 05:43:26,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:43:26,557 INFO L225 Difference]: With dead ends: 601 [2021-10-29 05:43:26,557 INFO L226 Difference]: Without dead ends: 601 [2021-10-29 05:43:26,557 INFO L786 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 [2021-10-29 05:43:26,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2021-10-29 05:43:26,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2021-10-29 05:43:26,582 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) [2021-10-29 05:43:26,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1711 transitions. [2021-10-29 05:43:26,599 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1711 transitions. Word has length 3 [2021-10-29 05:43:26,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:43:26,599 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 1711 transitions. [2021-10-29 05:43:26,600 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) [2021-10-29 05:43:26,600 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1711 transitions. [2021-10-29 05:43:26,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 05:43:26,600 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:43:26,600 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-29 05:43:26,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:43:26,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:43:26,812 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-29 05:43:26,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:43:26,813 INFO L85 PathProgramCache]: Analyzing trace with hash 325132, now seen corresponding path program 1 times [2021-10-29 05:43:26,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:43:26,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2049368560] [2021-10-29 05:43:26,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:43:26,814 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:43:26,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:43:26,815 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:43:26,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 05:43:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:43:26,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:43:26,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:43:26,977 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-29 05:43:26,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-29 05:43:27,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:27,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:43:27,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:27,226 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:43:27,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2049368560] [2021-10-29 05:43:27,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2049368560] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:43:27,227 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:43:27,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-29 05:43:27,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745831354] [2021-10-29 05:43:27,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:43:27,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:43:27,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:43:27,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:43:27,228 INFO L87 Difference]: Start difference. First operand 601 states and 1711 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) [2021-10-29 05:43:27,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:43:27,321 INFO L93 Difference]: Finished difference Result 593 states and 1695 transitions. [2021-10-29 05:43:27,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:43:27,322 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 [2021-10-29 05:43:27,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:43:27,329 INFO L225 Difference]: With dead ends: 593 [2021-10-29 05:43:27,329 INFO L226 Difference]: Without dead ends: 593 [2021-10-29 05:43:27,330 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:43:27,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-10-29 05:43:27,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2021-10-29 05:43:27,352 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) [2021-10-29 05:43:27,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1695 transitions. [2021-10-29 05:43:27,357 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1695 transitions. Word has length 3 [2021-10-29 05:43:27,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:43:27,357 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 1695 transitions. [2021-10-29 05:43:27,358 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) [2021-10-29 05:43:27,358 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1695 transitions. [2021-10-29 05:43:27,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 05:43:27,358 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:43:27,359 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 05:43:27,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:43:27,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:43:27,571 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-29 05:43:27,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:43:27,574 INFO L85 PathProgramCache]: Analyzing trace with hash 312459906, now seen corresponding path program 1 times [2021-10-29 05:43:27,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:43:27,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513796812] [2021-10-29 05:43:27,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:43:27,576 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:43:27,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:43:27,577 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:43:27,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 05:43:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:43:27,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:43:27,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:43:27,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:27,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:43:27,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:27,725 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:43:27,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513796812] [2021-10-29 05:43:27,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513796812] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:43:27,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:43:27,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-29 05:43:27,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198941479] [2021-10-29 05:43:27,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:43:27,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:43:27,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:43:27,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:43:27,733 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) [2021-10-29 05:43:27,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:43:27,756 INFO L93 Difference]: Finished difference Result 529 states and 1503 transitions. [2021-10-29 05:43:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:43:27,757 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 [2021-10-29 05:43:27,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:43:27,763 INFO L225 Difference]: With dead ends: 529 [2021-10-29 05:43:27,763 INFO L226 Difference]: Without dead ends: 529 [2021-10-29 05:43:27,763 INFO L786 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 [2021-10-29 05:43:27,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2021-10-29 05:43:27,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2021-10-29 05:43:27,782 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) [2021-10-29 05:43:27,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 1503 transitions. [2021-10-29 05:43:27,786 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 1503 transitions. Word has length 5 [2021-10-29 05:43:27,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:43:27,789 INFO L470 AbstractCegarLoop]: Abstraction has 529 states and 1503 transitions. [2021-10-29 05:43:27,789 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) [2021-10-29 05:43:27,790 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 1503 transitions. [2021-10-29 05:43:27,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 05:43:27,790 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:43:27,790 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 05:43:27,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:43:28,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:43:28,007 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-29 05:43:28,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:43:28,007 INFO L85 PathProgramCache]: Analyzing trace with hash 312459907, now seen corresponding path program 1 times [2021-10-29 05:43:28,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:43:28,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095964331] [2021-10-29 05:43:28,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:43:28,008 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:43:28,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:43:28,011 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:43:28,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 05:43:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:43:28,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:43:28,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:43:28,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:28,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:43:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:28,131 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:43:28,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095964331] [2021-10-29 05:43:28,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095964331] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:43:28,131 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:43:28,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-29 05:43:28,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782045013] [2021-10-29 05:43:28,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:43:28,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:43:28,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:43:28,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:43:28,133 INFO L87 Difference]: Start difference. First operand 529 states and 1503 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) [2021-10-29 05:43:28,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:43:28,148 INFO L93 Difference]: Finished difference Result 465 states and 1311 transitions. [2021-10-29 05:43:28,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:43:28,149 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 [2021-10-29 05:43:28,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:43:28,154 INFO L225 Difference]: With dead ends: 465 [2021-10-29 05:43:28,154 INFO L226 Difference]: Without dead ends: 465 [2021-10-29 05:43:28,154 INFO L786 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 [2021-10-29 05:43:28,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2021-10-29 05:43:28,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2021-10-29 05:43:28,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 439 states have (on average 2.9863325740318905) internal successors, (1311), 464 states have internal predecessors, (1311), 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) [2021-10-29 05:43:28,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 1311 transitions. [2021-10-29 05:43:28,173 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 1311 transitions. Word has length 5 [2021-10-29 05:43:28,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:43:28,174 INFO L470 AbstractCegarLoop]: Abstraction has 465 states and 1311 transitions. [2021-10-29 05:43:28,174 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) [2021-10-29 05:43:28,174 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 1311 transitions. [2021-10-29 05:43:28,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 05:43:28,175 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:43:28,175 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 05:43:28,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 05:43:28,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:43:28,387 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-29 05:43:28,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:43:28,387 INFO L85 PathProgramCache]: Analyzing trace with hash 312459920, now seen corresponding path program 1 times [2021-10-29 05:43:28,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:43:28,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594017506] [2021-10-29 05:43:28,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:43:28,388 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:43:28,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:43:28,389 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:43:28,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 05:43:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:43:28,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 05:43:28,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:43:28,561 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-29 05:43:28,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 60 [2021-10-29 05:43:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:29,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:43:29,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:43:29,577 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:43:29,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594017506] [2021-10-29 05:43:29,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [594017506] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:43:29,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:43:29,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-29 05:43:29,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604270116] [2021-10-29 05:43:29,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:43:29,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:43:29,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:43:29,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:43:29,580 INFO L87 Difference]: Start difference. First operand 465 states and 1311 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) [2021-10-29 05:43:29,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:43:29,682 INFO L93 Difference]: Finished difference Result 401 states and 1119 transitions. [2021-10-29 05:43:29,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:43:29,685 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 [2021-10-29 05:43:29,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:43:29,689 INFO L225 Difference]: With dead ends: 401 [2021-10-29 05:43:29,689 INFO L226 Difference]: Without dead ends: 401 [2021-10-29 05:43:29,690 INFO L786 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 [2021-10-29 05:43:29,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-10-29 05:43:29,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2021-10-29 05:43:29,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 384 states have (on average 2.9140625) internal successors, (1119), 400 states have internal predecessors, (1119), 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) [2021-10-29 05:43:29,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 1119 transitions. [2021-10-29 05:43:29,707 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 1119 transitions. Word has length 5 [2021-10-29 05:43:29,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:43:29,707 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 1119 transitions. [2021-10-29 05:43:29,709 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) [2021-10-29 05:43:29,709 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 1119 transitions. [2021-10-29 05:43:29,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 05:43:29,711 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:43:29,711 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:43:29,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 05:43:29,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:43:29,929 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err1REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-29 05:43:29,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:43:29,929 INFO L85 PathProgramCache]: Analyzing trace with hash -403181622, now seen corresponding path program 1 times [2021-10-29 05:43:29,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:43:29,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435660865] [2021-10-29 05:43:29,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:43:29,930 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:43:29,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:43:29,932 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:43:29,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 05:43:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:43:30,021 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:43:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:43:30,089 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 05:43:30,089 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:43:30,090 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t1Err1REQUIRES_VIOLATION [2021-10-29 05:43:30,092 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:43:30,093 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-29 05:43:30,093 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-29 05:43:30,093 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-29 05:43:30,093 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-29 05:43:30,093 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 05:43:30,094 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 05:43:30,094 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 05:43:30,094 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 05:43:30,094 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-29 05:43:30,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATION [2021-10-29 05:43:30,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1REQUIRES_VIOLATION [2021-10-29 05:43:30,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATION [2021-10-29 05:43:30,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATION [2021-10-29 05:43:30,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATION [2021-10-29 05:43:30,096 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATION [2021-10-29 05:43:30,096 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATION [2021-10-29 05:43:30,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 05:43:30,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:43:30,299 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:43:30,302 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 05:43:30,303 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:43:30,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:43:30 BasicIcfg [2021-10-29 05:43:30,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:43:30,329 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:43:30,329 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:43:30,329 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:43:30,330 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:43:14" (3/4) ... [2021-10-29 05:43:30,332 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 05:43:30,386 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:43:30,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:43:30,388 INFO L168 Benchmark]: Toolchain (without parser) took 17927.48 ms. Allocated memory was 52.4 MB in the beginning and 100.7 MB in the end (delta: 48.2 MB). Free memory was 26.7 MB in the beginning and 54.2 MB in the end (delta: -27.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:43:30,388 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 52.4 MB. Free memory was 32.1 MB in the beginning and 32.0 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:43:30,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 846.16 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 26.5 MB in the beginning and 35.7 MB in the end (delta: -9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:43:30,389 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.02 ms. Allocated memory is still 65.0 MB. Free memory was 35.7 MB in the beginning and 33.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:43:30,390 INFO L168 Benchmark]: Boogie Preprocessor took 76.22 ms. Allocated memory is still 65.0 MB. Free memory was 33.5 MB in the beginning and 31.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:43:30,390 INFO L168 Benchmark]: RCFGBuilder took 601.46 ms. Allocated memory is still 65.0 MB. Free memory was 31.8 MB in the beginning and 35.5 MB in the end (delta: -3.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:43:30,391 INFO L168 Benchmark]: TraceAbstraction took 16239.38 ms. Allocated memory was 65.0 MB in the beginning and 100.7 MB in the end (delta: 35.7 MB). Free memory was 35.0 MB in the beginning and 57.5 MB in the end (delta: -22.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:43:30,391 INFO L168 Benchmark]: Witness Printer took 57.82 ms. Allocated memory is still 100.7 MB. Free memory was 57.5 MB in the beginning and 54.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:43:30,394 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 52.4 MB. Free memory was 32.1 MB in the beginning and 32.0 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 846.16 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 26.5 MB in the beginning and 35.7 MB in the end (delta: -9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.02 ms. Allocated memory is still 65.0 MB. Free memory was 35.7 MB in the beginning and 33.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.22 ms. Allocated memory is still 65.0 MB. Free memory was 33.5 MB in the beginning and 31.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 601.46 ms. Allocated memory is still 65.0 MB. Free memory was 31.8 MB in the beginning and 35.5 MB in the end (delta: -3.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16239.38 ms. Allocated memory was 65.0 MB in the beginning and 100.7 MB in the end (delta: 35.7 MB). Free memory was 35.0 MB in the beginning and 57.5 MB in the end (delta: -22.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * Witness Printer took 57.82 ms. Allocated memory is still 100.7 MB. Free memory was 57.5 MB in the beginning and 54.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.4s, 88 PlacesBefore, 39 PlacesAfterwards, 86 TransitionsBefore, 35 TransitionsAfterwards, 1534 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 4096 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1854, positive: 1691, positive conditional: 0, positive unconditional: 1691, 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: 855, positive: 822, positive conditional: 0, positive unconditional: 822, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 855, positive: 817, positive conditional: 0, positive unconditional: 817, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 616, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 586, negative conditional: 0, negative unconditional: 586, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1854, positive: 869, positive conditional: 0, positive unconditional: 869, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 855, unknown conditional: 0, unknown unconditional: 855] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - 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 [arg={1:0}, i=1, ind=0, j=2, size=2] [L1041] 1 int *a = (int *)arg; VAL [a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, j=2, size=2] [L1042] COND TRUE 1 ind < size - 1 VAL [a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, j=2, size=2] [L1043] 1 ++ind [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: 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: 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: 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, 108 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 16.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.6s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 178 SDtfs, 162 SDslu, 55 SDs, 0 SdLazy, 70 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=613occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 34 ConstructedInterpolants, 4 QuantifiedInterpolants, 354 SizeOfPredicates, 7 NumberOfNonLiveVariables, 254 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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! [2021-10-29 05:43:30,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62bc6928-93fd-4d8f-8076-d9ad26404521/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...