./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 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs --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 317acdded5b2f05710e753bf8fd3c2308f1aec62 ............................................................................................................................................. 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_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs --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 317acdded5b2f05710e753bf8fd3c2308f1aec62 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-5709675 [2021-10-16 03:03:10,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:03:10,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:03:10,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:03:10,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:03:10,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:03:10,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:03:10,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:03:10,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:03:10,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:03:10,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:03:10,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:03:10,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:03:10,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:03:10,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:03:10,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:03:10,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:03:10,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:03:10,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:03:10,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:03:10,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:03:10,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:03:10,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:03:10,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:03:10,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:03:10,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:03:10,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:03:10,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:03:10,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:03:10,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:03:10,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:03:10,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:03:10,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:03:10,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:03:10,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:03:10,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:03:10,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:03:10,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:03:10,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:03:10,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:03:10,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:03:10,597 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-16 03:03:10,643 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:03:10,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:03:10,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:03:10,654 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:03:10,654 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:03:10,654 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:03:10,654 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:03:10,655 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:03:10,655 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:03:10,655 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:03:10,656 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:03:10,656 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:03:10,657 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:03:10,657 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:03:10,657 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:03:10,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 03:03:10,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 03:03:10,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:03:10,659 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:03:10,659 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 03:03:10,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:03:10,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:03:10,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:03:10,660 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-16 03:03:10,660 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-16 03:03:10,660 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-16 03:03:10,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:03:10,661 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:03:10,661 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:03:10,661 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:03:10,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:03:10,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:03:10,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:03:10,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:03:10,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:03:10,663 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:03:10,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:03:10,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:03:10,663 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:03:10,664 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_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 317acdded5b2f05710e753bf8fd3c2308f1aec62 [2021-10-16 03:03:10,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:03:10,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:03:11,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:03:11,004 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:03:11,005 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:03:11,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-10-16 03:03:11,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/data/19d540ba1/8112221072594f97bc01a9bb4984280e/FLAG35e3968ee [2021-10-16 03:03:11,722 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:03:11,723 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-10-16 03:03:11,757 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/data/19d540ba1/8112221072594f97bc01a9bb4984280e/FLAG35e3968ee [2021-10-16 03:03:11,944 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/data/19d540ba1/8112221072594f97bc01a9bb4984280e [2021-10-16 03:03:11,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:03:11,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:03:11,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:03:11,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:03:11,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:03:11,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:03:11" (1/1) ... [2021-10-16 03:03:11,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a77dca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:11, skipping insertion in model container [2021-10-16 03:03:11,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:03:11" (1/1) ... [2021-10-16 03:03:11,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:03:12,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:03:12,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:03:12,472 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) [2021-10-16 03:03:12,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@44250696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:12, skipping insertion in model container [2021-10-16 03:03:12,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:03:12,474 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-16 03:03:12,476 INFO L168 Benchmark]: Toolchain (without parser) took 526.88 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 55.8 MB in the beginning and 91.3 MB in the end (delta: -35.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2021-10-16 03:03:12,477 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory is still 74.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:03:12,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 524.28 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 55.6 MB in the beginning and 91.3 MB in the end (delta: -35.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2021-10-16 03:03:12,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory is still 74.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 524.28 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 55.6 MB in the beginning and 91.3 MB in the end (delta: -35.6 MB). Peak memory consumption was 9.7 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-5709675 [2021-10-16 03:03:14,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:03:14,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:03:14,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:03:14,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:03:14,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:03:14,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:03:14,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:03:14,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:03:14,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:03:14,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:03:14,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:03:14,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:03:14,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:03:14,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:03:14,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:03:14,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:03:14,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:03:14,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:03:14,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:03:14,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:03:14,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:03:14,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:03:14,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:03:14,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:03:14,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:03:14,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:03:14,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:03:14,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:03:14,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:03:14,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:03:14,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:03:14,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:03:14,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:03:14,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:03:14,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:03:14,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:03:14,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:03:14,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:03:14,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:03:14,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:03:14,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-16 03:03:14,772 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:03:14,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:03:14,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:03:14,774 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:03:14,774 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:03:14,774 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:03:14,774 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:03:14,775 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:03:14,775 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:03:14,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 03:03:14,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 03:03:14,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:03:14,778 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:03:14,778 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 03:03:14,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:03:14,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:03:14,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:03:14,779 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-16 03:03:14,779 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-16 03:03:14,779 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-16 03:03:14,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:03:14,780 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:03:14,780 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 03:03:14,780 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 03:03:14,780 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:03:14,781 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:03:14,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:03:14,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 03:03:14,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:03:14,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:03:14,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:03:14,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:03:14,783 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 03:03:14,783 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 03:03:14,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:03:14,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:03:14,799 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_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 317acdded5b2f05710e753bf8fd3c2308f1aec62 [2021-10-16 03:03:15,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:03:15,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:03:15,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:03:15,206 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:03:15,207 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:03:15,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-10-16 03:03:15,274 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/data/c4da3bbcd/9f1b12cca8c04aa183e4e848c8b288e1/FLAGa8c65e5d7 [2021-10-16 03:03:15,863 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:03:15,863 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-10-16 03:03:15,882 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/data/c4da3bbcd/9f1b12cca8c04aa183e4e848c8b288e1/FLAGa8c65e5d7 [2021-10-16 03:03:16,154 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/data/c4da3bbcd/9f1b12cca8c04aa183e4e848c8b288e1 [2021-10-16 03:03:16,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:03:16,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:03:16,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:03:16,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:03:16,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:03:16,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:03:16" (1/1) ... [2021-10-16 03:03:16,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b85b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:16, skipping insertion in model container [2021-10-16 03:03:16,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:03:16" (1/1) ... [2021-10-16 03:03:16,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:03:16,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:03:16,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:03:16,760 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-16 03:03:16,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:03:16,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:03:16,829 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:03:16,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:03:16,939 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:03:16,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:16 WrapperNode [2021-10-16 03:03:16,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:03:16,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:03:16,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:03:16,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:03:16,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:16" (1/1) ... [2021-10-16 03:03:16,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:16" (1/1) ... [2021-10-16 03:03:16,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:03:16,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:03:16,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:03:16,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:03:17,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:16" (1/1) ... [2021-10-16 03:03:17,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:16" (1/1) ... [2021-10-16 03:03:17,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:16" (1/1) ... [2021-10-16 03:03:17,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:16" (1/1) ... [2021-10-16 03:03:17,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:16" (1/1) ... [2021-10-16 03:03:17,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:16" (1/1) ... [2021-10-16 03:03:17,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:16" (1/1) ... [2021-10-16 03:03:17,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:03:17,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:03:17,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:03:17,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:03:17,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:16" (1/1) ... [2021-10-16 03:03:17,074 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:03:17,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:03:17,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:03:17,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:03:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-10-16 03:03:17,152 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-10-16 03:03:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-10-16 03:03:17,153 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-10-16 03:03:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:03:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 03:03:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 03:03:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 03:03:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:03:17,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:03:17,155 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 03:03:17,620 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:03:17,621 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-16 03:03:17,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:03:17 BoogieIcfgContainer [2021-10-16 03:03:17,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:03:17,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:03:17,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:03:17,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:03:17,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:03:16" (1/3) ... [2021-10-16 03:03:17,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150e5df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:03:17, skipping insertion in model container [2021-10-16 03:03:17,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:03:16" (2/3) ... [2021-10-16 03:03:17,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150e5df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:03:17, skipping insertion in model container [2021-10-16 03:03:17,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:03:17" (3/3) ... [2021-10-16 03:03:17,630 INFO L111 eAbstractionObserver]: Analyzing ICFG fillarray.i [2021-10-16 03:03:17,635 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:03:17,635 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-10-16 03:03:17,635 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 03:03:17,664 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,665 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,665 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,665 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,666 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,666 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,666 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,666 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,667 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,667 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,667 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,667 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,667 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,668 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,668 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,668 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,668 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,669 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,669 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,669 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,669 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,670 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,670 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,670 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,670 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,671 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,671 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,671 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,672 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,672 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,672 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,672 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,673 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,673 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,674 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,674 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,674 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,674 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,675 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,675 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,675 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,675 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,675 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,676 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,676 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,676 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,676 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,676 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,677 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,677 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,677 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,677 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,678 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,679 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,679 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,679 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,679 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,680 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,680 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,680 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,681 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,681 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,681 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,681 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,682 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,685 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,685 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,685 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,685 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,685 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,686 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,686 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,691 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,691 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,691 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,691 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,692 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,692 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,692 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 03:03:17,695 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 03:03:17,739 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:03:17,748 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, mConcurrency=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 [2021-10-16 03:03:17,749 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-10-16 03:03:17,765 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-16 03:03:17,776 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 86 transitions, 182 flow [2021-10-16 03:03:17,779 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 86 transitions, 182 flow [2021-10-16 03:03:17,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 86 transitions, 182 flow [2021-10-16 03:03:17,825 INFO L129 PetriNetUnfolder]: 4/89 cut-off events. [2021-10-16 03:03:17,825 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 03:03:17,843 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. [2021-10-16 03:03:17,846 INFO L116 LiptonReduction]: Number of co-enabled transitions 1534 [2021-10-16 03:03:27,542 INFO L131 LiptonReduction]: Checked pairs total: 4096 [2021-10-16 03:03:27,542 INFO L133 LiptonReduction]: Total number of compositions: 80 [2021-10-16 03:03:27,564 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 35 transitions, 80 flow [2021-10-16 03:03:27,615 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) [2021-10-16 03:03:27,621 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) [2021-10-16 03:03:27,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-16 03:03:27,626 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:03:27,626 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-16 03:03:27,627 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-16 03:03:27,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:03:27,632 INFO L82 PathProgramCache]: Analyzing trace with hash 329, now seen corresponding path program 1 times [2021-10-16 03:03:27,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:03:27,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [834625086] [2021-10-16 03:03:27,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:03:27,646 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:03:27,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:03:27,661 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:03:27,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 03:03:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:03:27,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 03:03:27,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:03:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:03:27,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:03:27,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:03:27,749 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:03:27,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [834625086] [2021-10-16 03:03:27,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [834625086] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:03:27,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:03:27,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-16 03:03:27,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376893744] [2021-10-16 03:03:27,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 03:03:27,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:03:27,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 03:03:27,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:03:27,779 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) [2021-10-16 03:03:27,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:03:27,836 INFO L93 Difference]: Finished difference Result 611 states and 1729 transitions. [2021-10-16 03:03:27,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 03:03:27,838 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 [2021-10-16 03:03:27,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:03:27,861 INFO L225 Difference]: With dead ends: 611 [2021-10-16 03:03:27,861 INFO L226 Difference]: Without dead ends: 611 [2021-10-16 03:03:27,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:03:27,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2021-10-16 03:03:27,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 611. [2021-10-16 03:03:27,952 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) [2021-10-16 03:03:27,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1729 transitions. [2021-10-16 03:03:27,960 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1729 transitions. Word has length 1 [2021-10-16 03:03:27,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:03:27,961 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 1729 transitions. [2021-10-16 03:03:27,961 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) [2021-10-16 03:03:27,962 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1729 transitions. [2021-10-16 03:03:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-16 03:03:27,962 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:03:27,962 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-16 03:03:27,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:03:28,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:03:28,173 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-16 03:03:28,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:03:28,174 INFO L82 PathProgramCache]: Analyzing trace with hash 10340, now seen corresponding path program 1 times [2021-10-16 03:03:28,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:03:28,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382269273] [2021-10-16 03:03:28,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:03:28,175 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:03:28,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:03:28,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:03:28,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 03:03:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:03:28,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:03:28,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:03:28,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:03:28,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:03:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:03:28,276 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:03:28,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382269273] [2021-10-16 03:03:28,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382269273] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:03:28,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:03:28,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-16 03:03:28,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029191427] [2021-10-16 03:03:28,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:03:28,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:03:28,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:03:28,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:03:28,295 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) [2021-10-16 03:03:28,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:03:28,432 INFO L93 Difference]: Finished difference Result 610 states and 1728 transitions. [2021-10-16 03:03:28,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:03:28,433 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 [2021-10-16 03:03:28,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:03:28,441 INFO L225 Difference]: With dead ends: 610 [2021-10-16 03:03:28,441 INFO L226 Difference]: Without dead ends: 609 [2021-10-16 03:03:28,442 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:03:28,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2021-10-16 03:03:28,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2021-10-16 03:03:28,481 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) [2021-10-16 03:03:28,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 1727 transitions. [2021-10-16 03:03:28,487 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 1727 transitions. Word has length 2 [2021-10-16 03:03:28,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:03:28,487 INFO L470 AbstractCegarLoop]: Abstraction has 609 states and 1727 transitions. [2021-10-16 03:03:28,487 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) [2021-10-16 03:03:28,487 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 1727 transitions. [2021-10-16 03:03:28,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 03:03:28,488 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:03:28,488 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 03:03:28,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 03:03:28,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:03:28,711 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-16 03:03:28,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:03:28,712 INFO L82 PathProgramCache]: Analyzing trace with hash 325131, now seen corresponding path program 1 times [2021-10-16 03:03:28,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:03:28,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705992604] [2021-10-16 03:03:28,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:03:28,713 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:03:28,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:03:28,716 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:03:28,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 03:03:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:03:28,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 03:03:28,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:03:28,886 INFO L354 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2021-10-16 03:03:28,887 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 [2021-10-16 03:03:28,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:03:28,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:03:29,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:03:29,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:03:29,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705992604] [2021-10-16 03:03:29,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705992604] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:03:29,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:03:29,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-16 03:03:29,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921922771] [2021-10-16 03:03:29,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:03:29,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:03:29,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:03:29,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:03:29,060 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) [2021-10-16 03:03:29,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:03:29,200 INFO L93 Difference]: Finished difference Result 601 states and 1711 transitions. [2021-10-16 03:03:29,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:03:29,202 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 [2021-10-16 03:03:29,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:03:29,212 INFO L225 Difference]: With dead ends: 601 [2021-10-16 03:03:29,212 INFO L226 Difference]: Without dead ends: 601 [2021-10-16 03:03:29,213 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:03:29,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2021-10-16 03:03:29,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2021-10-16 03:03:29,250 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) [2021-10-16 03:03:29,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1711 transitions. [2021-10-16 03:03:29,257 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1711 transitions. Word has length 3 [2021-10-16 03:03:29,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:03:29,257 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 1711 transitions. [2021-10-16 03:03:29,257 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) [2021-10-16 03:03:29,258 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1711 transitions. [2021-10-16 03:03:29,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 03:03:29,258 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:03:29,258 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 03:03:29,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 03:03:29,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:03:29,476 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-16 03:03:29,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:03:29,476 INFO L82 PathProgramCache]: Analyzing trace with hash 325132, now seen corresponding path program 1 times [2021-10-16 03:03:29,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:03:29,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238429439] [2021-10-16 03:03:29,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:03:29,477 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:03:29,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:03:29,481 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:03:29,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 03:03:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:03:29,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:03:29,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:03:29,608 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-16 03:03:29,608 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 [2021-10-16 03:03:29,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:03:29,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:03:29,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:03:29,831 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:03:29,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238429439] [2021-10-16 03:03:29,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238429439] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:03:29,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:03:29,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-16 03:03:29,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942451586] [2021-10-16 03:03:29,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:03:29,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:03:29,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:03:29,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:03:29,833 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) [2021-10-16 03:03:29,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:03:29,913 INFO L93 Difference]: Finished difference Result 593 states and 1695 transitions. [2021-10-16 03:03:29,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:03:29,914 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 [2021-10-16 03:03:29,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:03:29,920 INFO L225 Difference]: With dead ends: 593 [2021-10-16 03:03:29,920 INFO L226 Difference]: Without dead ends: 593 [2021-10-16 03:03:29,921 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:03:29,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-10-16 03:03:29,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2021-10-16 03:03:29,941 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) [2021-10-16 03:03:29,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1695 transitions. [2021-10-16 03:03:29,945 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1695 transitions. Word has length 3 [2021-10-16 03:03:29,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:03:29,945 INFO L470 AbstractCegarLoop]: Abstraction has 593 states and 1695 transitions. [2021-10-16 03:03:29,946 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) [2021-10-16 03:03:29,946 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1695 transitions. [2021-10-16 03:03:29,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 03:03:29,946 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:03:29,946 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 03:03:29,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 03:03:30,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:03:30,158 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-16 03:03:30,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:03:30,158 INFO L82 PathProgramCache]: Analyzing trace with hash 312459906, now seen corresponding path program 1 times [2021-10-16 03:03:30,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:03:30,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500604467] [2021-10-16 03:03:30,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:03:30,159 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:03:30,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:03:30,160 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:03:30,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 03:03:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:03:30,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:03:30,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:03:30,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:03:30,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:03:30,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:03:30,261 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:03:30,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500604467] [2021-10-16 03:03:30,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500604467] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:03:30,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:03:30,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-16 03:03:30,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799850876] [2021-10-16 03:03:30,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:03:30,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:03:30,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:03:30,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:03:30,270 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) [2021-10-16 03:03:30,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:03:30,289 INFO L93 Difference]: Finished difference Result 529 states and 1503 transitions. [2021-10-16 03:03:30,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:03:30,290 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 [2021-10-16 03:03:30,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:03:30,295 INFO L225 Difference]: With dead ends: 529 [2021-10-16 03:03:30,295 INFO L226 Difference]: Without dead ends: 529 [2021-10-16 03:03:30,295 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:03:30,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2021-10-16 03:03:30,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2021-10-16 03:03:30,324 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) [2021-10-16 03:03:30,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 1503 transitions. [2021-10-16 03:03:30,328 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 1503 transitions. Word has length 5 [2021-10-16 03:03:30,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:03:30,330 INFO L470 AbstractCegarLoop]: Abstraction has 529 states and 1503 transitions. [2021-10-16 03:03:30,331 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) [2021-10-16 03:03:30,331 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 1503 transitions. [2021-10-16 03:03:30,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 03:03:30,331 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:03:30,332 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 03:03:30,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 03:03:30,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:03:30,547 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-16 03:03:30,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:03:30,549 INFO L82 PathProgramCache]: Analyzing trace with hash 312459907, now seen corresponding path program 1 times [2021-10-16 03:03:30,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:03:30,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134451017] [2021-10-16 03:03:30,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:03:30,551 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:03:30,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:03:30,552 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:03:30,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-16 03:03:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:03:30,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:03:30,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:03:30,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:03:30,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:03:30,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:03:30,670 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:03:30,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134451017] [2021-10-16 03:03:30,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134451017] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:03:30,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:03:30,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-16 03:03:30,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425942978] [2021-10-16 03:03:30,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:03:30,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:03:30,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:03:30,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:03:30,672 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) [2021-10-16 03:03:30,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:03:30,689 INFO L93 Difference]: Finished difference Result 465 states and 1311 transitions. [2021-10-16 03:03:30,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:03:30,690 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 [2021-10-16 03:03:30,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:03:30,694 INFO L225 Difference]: With dead ends: 465 [2021-10-16 03:03:30,694 INFO L226 Difference]: Without dead ends: 465 [2021-10-16 03:03:30,694 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:03:30,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2021-10-16 03:03:30,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2021-10-16 03:03:30,710 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) [2021-10-16 03:03:30,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 1311 transitions. [2021-10-16 03:03:30,713 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 1311 transitions. Word has length 5 [2021-10-16 03:03:30,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:03:30,713 INFO L470 AbstractCegarLoop]: Abstraction has 465 states and 1311 transitions. [2021-10-16 03:03:30,713 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) [2021-10-16 03:03:30,714 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 1311 transitions. [2021-10-16 03:03:30,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 03:03:30,714 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:03:30,714 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 03:03:30,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-16 03:03:30,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:03:30,926 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-16 03:03:30,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:03:30,926 INFO L82 PathProgramCache]: Analyzing trace with hash 312459920, now seen corresponding path program 1 times [2021-10-16 03:03:30,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:03:30,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033420416] [2021-10-16 03:03:30,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:03:30,927 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:03:30,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:03:30,928 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:03:30,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 03:03:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:03:31,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 03:03:31,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:03:31,085 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-16 03:03:31,085 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 [2021-10-16 03:03:31,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:03:31,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:03:31,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:03:31,984 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:03:31,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033420416] [2021-10-16 03:03:31,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033420416] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:03:31,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:03:31,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-16 03:03:31,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414831347] [2021-10-16 03:03:31,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:03:31,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:03:31,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:03:31,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:03:31,987 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) [2021-10-16 03:03:32,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:03:32,066 INFO L93 Difference]: Finished difference Result 401 states and 1119 transitions. [2021-10-16 03:03:32,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:03:32,067 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 [2021-10-16 03:03:32,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:03:32,071 INFO L225 Difference]: With dead ends: 401 [2021-10-16 03:03:32,071 INFO L226 Difference]: Without dead ends: 401 [2021-10-16 03:03:32,071 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:03:32,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-10-16 03:03:32,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2021-10-16 03:03:32,084 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) [2021-10-16 03:03:32,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 1119 transitions. [2021-10-16 03:03:32,087 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 1119 transitions. Word has length 5 [2021-10-16 03:03:32,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:03:32,087 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 1119 transitions. [2021-10-16 03:03:32,087 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) [2021-10-16 03:03:32,088 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 1119 transitions. [2021-10-16 03:03:32,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 03:03:32,088 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:03:32,089 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:03:32,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-16 03:03:32,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:03:32,300 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err1REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-10-16 03:03:32,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:03:32,301 INFO L82 PathProgramCache]: Analyzing trace with hash -403181622, now seen corresponding path program 1 times [2021-10-16 03:03:32,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:03:32,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207793922] [2021-10-16 03:03:32,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:03:32,301 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:03:32,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:03:32,302 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:03:32,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-16 03:03:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:03:32,397 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 03:03:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:03:32,477 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-16 03:03:32,478 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 03:03:32,479 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t1Err1REQUIRES_VIOLATION [2021-10-16 03:03:32,480 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 03:03:32,481 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-16 03:03:32,481 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-16 03:03:32,481 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-16 03:03:32,481 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-16 03:03:32,481 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 03:03:32,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 03:03:32,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 03:03:32,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 03:03:32,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-16 03:03:32,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATION [2021-10-16 03:03:32,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1REQUIRES_VIOLATION [2021-10-16 03:03:32,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATION [2021-10-16 03:03:32,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATION [2021-10-16 03:03:32,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATION [2021-10-16 03:03:32,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATION [2021-10-16 03:03:32,484 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATION [2021-10-16 03:03:32,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-16 03:03:32,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:03:32,690 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 03:03:32,690 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:03:32,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:03:32 BasicIcfg [2021-10-16 03:03:32,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:03:32,711 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:03:32,711 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:03:32,712 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:03:32,712 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:03:17" (3/4) ... [2021-10-16 03:03:32,714 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 03:03:32,761 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 03:03:32,761 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:03:32,764 INFO L168 Benchmark]: Toolchain (without parser) took 16604.34 ms. Allocated memory was 77.6 MB in the beginning and 117.4 MB in the end (delta: 39.8 MB). Free memory was 41.4 MB in the beginning and 73.8 MB in the end (delta: -32.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:03:32,765 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 77.6 MB. Free memory was 59.9 MB in the beginning and 59.8 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:03:32,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.74 ms. Allocated memory is still 77.6 MB. Free memory was 41.2 MB in the beginning and 38.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:03:32,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.79 ms. Allocated memory is still 77.6 MB. Free memory was 38.9 MB in the beginning and 36.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:03:32,766 INFO L168 Benchmark]: Boogie Preprocessor took 58.05 ms. Allocated memory is still 77.6 MB. Free memory was 36.5 MB in the beginning and 35.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:03:32,766 INFO L168 Benchmark]: RCFGBuilder took 572.54 ms. Allocated memory is still 77.6 MB. Free memory was 35.0 MB in the beginning and 47.7 MB in the end (delta: -12.8 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2021-10-16 03:03:32,767 INFO L168 Benchmark]: TraceAbstraction took 15086.87 ms. Allocated memory was 77.6 MB in the beginning and 117.4 MB in the end (delta: 39.8 MB). Free memory was 47.3 MB in the beginning and 77.0 MB in the end (delta: -29.6 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2021-10-16 03:03:32,767 INFO L168 Benchmark]: Witness Printer took 49.99 ms. Allocated memory is still 117.4 MB. Free memory was 77.0 MB in the beginning and 73.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:03:32,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 77.6 MB. Free memory was 59.9 MB in the beginning and 59.8 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 777.74 ms. Allocated memory is still 77.6 MB. Free memory was 41.2 MB in the beginning and 38.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.79 ms. Allocated memory is still 77.6 MB. Free memory was 38.9 MB in the beginning and 36.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.05 ms. Allocated memory is still 77.6 MB. Free memory was 36.5 MB in the beginning and 35.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 572.54 ms. Allocated memory is still 77.6 MB. Free memory was 35.0 MB in the beginning and 47.7 MB in the end (delta: -12.8 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15086.87 ms. Allocated memory was 77.6 MB in the beginning and 117.4 MB in the end (delta: 39.8 MB). Free memory was 47.3 MB in the beginning and 77.0 MB in the end (delta: -29.6 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * Witness Printer took 49.99 ms. Allocated memory is still 117.4 MB. Free memory was 77.0 MB in the beginning and 73.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9763.4ms, 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: 657, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 630, negative conditional: 0, negative unconditional: 630, 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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: 14950.0ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 14.6ms, AutomataDifference: 645.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9865.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 178 SDtfs, 162 SDslu, 55 SDs, 0 SdLazy, 70 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 326.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 93.5ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 261.8ms AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 72.9ms SsaConstructionTime, 179.5ms SatisfiabilityAnalysisTime, 1671.4ms 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! [2021-10-16 03:03:32,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d50bb7c-fe6e-417c-97a7-9bb9a28b1e09/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...