./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH --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 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:15:37,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:15:37,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:15:37,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:15:37,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:15:37,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:15:37,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:15:37,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:15:37,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:15:37,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:15:37,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:15:37,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:15:37,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:15:37,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:15:37,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:15:37,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:15:37,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:15:37,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:15:37,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:15:37,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:15:37,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:15:37,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:15:37,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:15:37,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:15:37,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:15:37,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:15:37,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:15:37,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:15:37,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:15:37,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:15:37,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:15:37,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:15:37,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:15:37,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:15:37,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:15:37,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:15:37,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:15:37,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:15:37,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:15:37,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:15:37,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:15:37,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-03 04:15:37,455 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:15:37,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:15:37,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:15:37,456 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:15:37,456 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:15:37,457 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:15:37,457 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:15:37,457 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:15:37,457 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:15:37,458 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:15:37,458 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:15:37,458 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:15:37,458 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:15:37,459 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:15:37,459 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:15:37,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 04:15:37,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 04:15:37,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:15:37,460 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:15:37,461 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 04:15:37,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:15:37,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:15:37,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:15:37,462 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-03 04:15:37,462 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-03 04:15:37,462 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-03 04:15:37,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:15:37,462 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:15:37,463 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:15:37,463 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:15:37,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:15:37,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:15:37,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:15:37,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:15:37,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:15:37,464 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:15:37,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:15:37,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:15:37,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:15:37,465 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_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 [2021-11-03 04:15:37,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:15:37,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:15:37,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:15:37,842 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:15:37,843 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:15:37,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2021-11-03 04:15:37,918 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/data/a6de28f05/1bd3393c780d442895e0c7602a3b6092/FLAG1c4b6df0a [2021-11-03 04:15:38,491 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:15:38,491 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2021-11-03 04:15:38,515 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/data/a6de28f05/1bd3393c780d442895e0c7602a3b6092/FLAG1c4b6df0a [2021-11-03 04:15:38,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/data/a6de28f05/1bd3393c780d442895e0c7602a3b6092 [2021-11-03 04:15:38,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:15:38,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:15:38,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:15:38,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:15:38,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:15:38,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:15:38" (1/1) ... [2021-11-03 04:15:38,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5660a46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:38, skipping insertion in model container [2021-11-03 04:15:38,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:15:38" (1/1) ... [2021-11-03 04:15:38,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:15:38,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:15:39,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:15:39,371 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 04:15:39,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@50ca6703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:39, skipping insertion in model container [2021-11-03 04:15:39,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:15:39,372 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:15:39,374 INFO L168 Benchmark]: Toolchain (without parser) took 608.32 ms. Allocated memory is still 119.5 MB. Free memory was 78.1 MB in the beginning and 90.9 MB in the end (delta: -12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 04:15:39,374 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 119.5 MB. Free memory is still 96.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:15:39,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.97 ms. Allocated memory is still 119.5 MB. Free memory was 77.9 MB in the beginning and 90.9 MB in the end (delta: -13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 04:15:39,377 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 119.5 MB. Free memory is still 96.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 605.97 ms. Allocated memory is still 119.5 MB. Free memory was 77.9 MB in the beginning and 90.9 MB in the end (delta: -13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1044]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH --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 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:15:41,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:15:41,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:15:41,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:15:41,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:15:41,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:15:41,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:15:41,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:15:41,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:15:41,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:15:41,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:15:41,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:15:41,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:15:41,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:15:41,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:15:41,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:15:41,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:15:41,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:15:41,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:15:41,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:15:41,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:15:41,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:15:41,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:15:41,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:15:41,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:15:41,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:15:41,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:15:41,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:15:41,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:15:41,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:15:41,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:15:41,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:15:41,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:15:41,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:15:41,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:15:41,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:15:41,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:15:41,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:15:41,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:15:41,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:15:41,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:15:41,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-03 04:15:41,872 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:15:41,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:15:41,874 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:15:41,874 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:15:41,874 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:15:41,874 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:15:41,875 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:15:41,875 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:15:41,875 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:15:41,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 04:15:41,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 04:15:41,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:15:41,878 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:15:41,879 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 04:15:41,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:15:41,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:15:41,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:15:41,879 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-03 04:15:41,880 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-03 04:15:41,880 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-03 04:15:41,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:15:41,880 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:15:41,881 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:15:41,881 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:15:41,881 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:15:41,881 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:15:41,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:15:41,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:15:41,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:15:41,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:15:41,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:15:41,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:15:41,883 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:15:41,883 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:15:41,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:15:41,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:15:41,884 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_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 [2021-11-03 04:15:42,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:15:42,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:15:42,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:15:42,318 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:15:42,319 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:15:42,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2021-11-03 04:15:42,397 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/data/037878a8a/26c445df8ee5400b859204d96792bc0a/FLAG22cf17297 [2021-11-03 04:15:43,106 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:15:43,108 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2021-11-03 04:15:43,129 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/data/037878a8a/26c445df8ee5400b859204d96792bc0a/FLAG22cf17297 [2021-11-03 04:15:43,299 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/data/037878a8a/26c445df8ee5400b859204d96792bc0a [2021-11-03 04:15:43,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:15:43,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:15:43,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:15:43,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:15:43,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:15:43,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:15:43" (1/1) ... [2021-11-03 04:15:43,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7121c046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:43, skipping insertion in model container [2021-11-03 04:15:43,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:15:43" (1/1) ... [2021-11-03 04:15:43,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:15:43,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:15:44,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:15:44,082 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:15:44,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:15:44,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:15:44,173 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:15:44,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:15:44,333 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:15:44,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:44 WrapperNode [2021-11-03 04:15:44,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:15:44,334 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:15:44,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:15:44,335 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:15:44,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:44" (1/1) ... [2021-11-03 04:15:44,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:44" (1/1) ... [2021-11-03 04:15:44,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:15:44,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:15:44,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:15:44,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:15:44,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:44" (1/1) ... [2021-11-03 04:15:44,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:44" (1/1) ... [2021-11-03 04:15:44,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:44" (1/1) ... [2021-11-03 04:15:44,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:44" (1/1) ... [2021-11-03 04:15:44,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:44" (1/1) ... [2021-11-03 04:15:44,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:44" (1/1) ... [2021-11-03 04:15:44,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:44" (1/1) ... [2021-11-03 04:15:44,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:15:44,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:15:44,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:15:44,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:15:44,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:44" (1/1) ... [2021-11-03 04:15:44,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:15:44,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:15:44,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:15:44,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:15:44,596 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-11-03 04:15:44,597 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-11-03 04:15:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-11-03 04:15:44,597 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-11-03 04:15:44,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:15:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:15:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:15:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:15:44,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:15:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:15:44,600 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-03 04:15:45,148 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:15:45,149 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-03 04:15:45,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:15:45 BoogieIcfgContainer [2021-11-03 04:15:45,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:15:45,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:15:45,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:15:45,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:15:45,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:15:43" (1/3) ... [2021-11-03 04:15:45,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad15c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:15:45, skipping insertion in model container [2021-11-03 04:15:45,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:15:44" (2/3) ... [2021-11-03 04:15:45,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad15c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:15:45, skipping insertion in model container [2021-11-03 04:15:45,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:15:45" (3/3) ... [2021-11-03 04:15:45,164 INFO L111 eAbstractionObserver]: Analyzing ICFG fillarray1.i [2021-11-03 04:15:45,170 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:15:45,171 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-11-03 04:15:45,171 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-03 04:15:45,228 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,228 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,229 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,229 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,229 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,229 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,229 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,230 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,230 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,230 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,231 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,232 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,232 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,232 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,233 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,233 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,234 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,234 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,234 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,234 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,234 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,235 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,235 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,235 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,235 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,236 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,238 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,238 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,240 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,240 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,240 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,240 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,241 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,241 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,243 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,243 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,243 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,243 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,245 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,245 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,245 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,246 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,246 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,246 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,246 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,247 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,247 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,247 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,247 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,247 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,248 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,250 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,251 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,251 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,251 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,252 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,252 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,252 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,252 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,252 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,253 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,253 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,254 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,255 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,255 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,255 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,256 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,256 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,260 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,260 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,260 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,260 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,261 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,261 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,261 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,268 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,268 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,268 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,268 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,268 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,269 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,269 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:15:45,272 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-03 04:15:45,344 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:15:45,353 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:15:45,353 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-11-03 04:15:45,376 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 04:15:45,390 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 101 transitions, 212 flow [2021-11-03 04:15:45,394 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 101 transitions, 212 flow [2021-11-03 04:15:45,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 101 transitions, 212 flow [2021-11-03 04:15:45,439 INFO L129 PetriNetUnfolder]: 8/104 cut-off events. [2021-11-03 04:15:45,439 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-03 04:15:45,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 104 events. 8/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 145 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 67. Up to 3 conditions per place. [2021-11-03 04:15:45,447 INFO L116 LiptonReduction]: Number of co-enabled transitions 2470 [2021-11-03 04:15:56,153 INFO L131 LiptonReduction]: Checked pairs total: 6888 [2021-11-03 04:15:56,153 INFO L133 LiptonReduction]: Total number of compositions: 85 [2021-11-03 04:15:56,171 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 45 transitions, 100 flow [2021-11-03 04:15:56,244 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1135 states, 1082 states have (on average 3.353049907578558) internal successors, (3628), 1134 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:56,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 1135 states, 1082 states have (on average 3.353049907578558) internal successors, (3628), 1134 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:56,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-11-03 04:15:56,255 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:56,256 INFO L513 BasicCegarLoop]: trace histogram [1] [2021-11-03 04:15:56,256 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-03 04:15:56,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:56,262 INFO L85 PathProgramCache]: Analyzing trace with hash 391, now seen corresponding path program 1 times [2021-11-03 04:15:56,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:56,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337424259] [2021-11-03 04:15:56,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:56,276 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:56,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:56,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:56,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:15:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:56,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:15:56,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:56,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:56,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:56,361 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:56,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337424259] [2021-11-03 04:15:56,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337424259] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:56,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:56,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-11-03 04:15:56,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152473135] [2021-11-03 04:15:56,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:15:56,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:56,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:15:56,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:15:56,390 INFO L87 Difference]: Start difference. First operand has 1135 states, 1082 states have (on average 3.353049907578558) internal successors, (3628), 1134 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:56,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:56,468 INFO L93 Difference]: Finished difference Result 1133 states and 3428 transitions. [2021-11-03 04:15:56,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:15:56,473 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2021-11-03 04:15:56,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:56,515 INFO L225 Difference]: With dead ends: 1133 [2021-11-03 04:15:56,515 INFO L226 Difference]: Without dead ends: 1133 [2021-11-03 04:15:56,516 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:15:56,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2021-11-03 04:15:56,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1133. [2021-11-03 04:15:56,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 1082 states have (on average 3.168207024029575) internal successors, (3428), 1132 states have internal predecessors, (3428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:56,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 3428 transitions. [2021-11-03 04:15:56,655 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 3428 transitions. Word has length 1 [2021-11-03 04:15:56,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:56,656 INFO L470 AbstractCegarLoop]: Abstraction has 1133 states and 3428 transitions. [2021-11-03 04:15:56,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:56,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 3428 transitions. [2021-11-03 04:15:56,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-03 04:15:56,657 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:56,657 INFO L513 BasicCegarLoop]: trace histogram [1, 1] [2021-11-03 04:15:56,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:56,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:56,868 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-03 04:15:56,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:56,869 INFO L85 PathProgramCache]: Analyzing trace with hash 12428, now seen corresponding path program 1 times [2021-11-03 04:15:56,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:56,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998423406] [2021-11-03 04:15:56,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:56,871 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:56,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:56,873 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:56,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:15:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:56,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:15:56,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:57,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:57,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:57,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:57,008 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:57,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998423406] [2021-11-03 04:15:57,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998423406] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:57,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:57,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-11-03 04:15:57,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477204411] [2021-11-03 04:15:57,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:15:57,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:57,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:15:57,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:15:57,011 INFO L87 Difference]: Start difference. First operand 1133 states and 3428 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:57,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:57,173 INFO L93 Difference]: Finished difference Result 1132 states and 3427 transitions. [2021-11-03 04:15:57,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:15:57,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-03 04:15:57,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:57,184 INFO L225 Difference]: With dead ends: 1132 [2021-11-03 04:15:57,184 INFO L226 Difference]: Without dead ends: 1131 [2021-11-03 04:15:57,185 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:15:57,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2021-11-03 04:15:57,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1131. [2021-11-03 04:15:57,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 1081 states have (on average 3.169287696577243) internal successors, (3426), 1130 states have internal predecessors, (3426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:57,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 3426 transitions. [2021-11-03 04:15:57,238 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 3426 transitions. Word has length 2 [2021-11-03 04:15:57,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:57,238 INFO L470 AbstractCegarLoop]: Abstraction has 1131 states and 3426 transitions. [2021-11-03 04:15:57,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:57,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 3426 transitions. [2021-11-03 04:15:57,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-03 04:15:57,239 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:57,239 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-03 04:15:57,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:57,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:57,451 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-03 04:15:57,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:57,452 INFO L85 PathProgramCache]: Analyzing trace with hash 385616, now seen corresponding path program 1 times [2021-11-03 04:15:57,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:57,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000893597] [2021-11-03 04:15:57,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:57,453 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:57,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:57,457 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:57,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:15:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:57,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:15:57,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:57,632 INFO L354 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2021-11-03 04:15:57,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 23 [2021-11-03 04:15:57,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:57,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:57,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:57,795 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:57,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000893597] [2021-11-03 04:15:57,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000893597] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:57,795 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:57,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-03 04:15:57,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408514129] [2021-11-03 04:15:57,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:15:57,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:57,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:15:57,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:15:57,798 INFO L87 Difference]: Start difference. First operand 1131 states and 3426 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:57,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:57,950 INFO L93 Difference]: Finished difference Result 1120 states and 3403 transitions. [2021-11-03 04:15:57,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:15:57,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-03 04:15:57,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:57,963 INFO L225 Difference]: With dead ends: 1120 [2021-11-03 04:15:57,963 INFO L226 Difference]: Without dead ends: 1120 [2021-11-03 04:15:57,963 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:15:57,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2021-11-03 04:15:58,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1120. [2021-11-03 04:15:58,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1073 states have (on average 3.1714818266542406) internal successors, (3403), 1119 states have internal predecessors, (3403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:58,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 3403 transitions. [2021-11-03 04:15:58,043 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 3403 transitions. Word has length 3 [2021-11-03 04:15:58,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:58,043 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 3403 transitions. [2021-11-03 04:15:58,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:58,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 3403 transitions. [2021-11-03 04:15:58,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-03 04:15:58,044 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:58,044 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-03 04:15:58,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 04:15:58,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:58,255 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-03 04:15:58,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:58,258 INFO L85 PathProgramCache]: Analyzing trace with hash 385618, now seen corresponding path program 1 times [2021-11-03 04:15:58,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:58,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569017011] [2021-11-03 04:15:58,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:58,259 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:58,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:58,260 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:58,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:15:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:58,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:15:58,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:58,384 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-11-03 04:15:58,384 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 22 [2021-11-03 04:15:58,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:58,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:58,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:58,434 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:58,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569017011] [2021-11-03 04:15:58,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569017011] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:58,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:58,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-11-03 04:15:58,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904487786] [2021-11-03 04:15:58,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:15:58,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:58,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:15:58,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:15:58,437 INFO L87 Difference]: Start difference. First operand 1120 states and 3403 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:58,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:58,523 INFO L93 Difference]: Finished difference Result 1109 states and 3380 transitions. [2021-11-03 04:15:58,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:15:58,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-03 04:15:58,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:58,534 INFO L225 Difference]: With dead ends: 1109 [2021-11-03 04:15:58,535 INFO L226 Difference]: Without dead ends: 1109 [2021-11-03 04:15:58,535 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:15:58,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-11-03 04:15:58,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1109. [2021-11-03 04:15:58,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 1065 states have (on average 3.1737089201877935) internal successors, (3380), 1108 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:58,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 3380 transitions. [2021-11-03 04:15:58,608 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 3380 transitions. Word has length 3 [2021-11-03 04:15:58,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:58,609 INFO L470 AbstractCegarLoop]: Abstraction has 1109 states and 3380 transitions. [2021-11-03 04:15:58,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:58,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 3380 transitions. [2021-11-03 04:15:58,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 04:15:58,610 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:58,610 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 04:15:58,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:58,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:58,821 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-03 04:15:58,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:58,822 INFO L85 PathProgramCache]: Analyzing trace with hash 370586894, now seen corresponding path program 1 times [2021-11-03 04:15:58,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:58,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295962374] [2021-11-03 04:15:58,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:58,823 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:58,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:58,824 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:58,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:15:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:58,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:15:58,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:58,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:58,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:58,958 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:58,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295962374] [2021-11-03 04:15:58,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295962374] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:58,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:58,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-11-03 04:15:58,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498242864] [2021-11-03 04:15:58,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:15:58,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:58,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:15:58,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:15:58,965 INFO L87 Difference]: Start difference. First operand 1109 states and 3380 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:58,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:58,992 INFO L93 Difference]: Finished difference Result 988 states and 2995 transitions. [2021-11-03 04:15:58,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:15:58,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-03 04:15:58,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:59,002 INFO L225 Difference]: With dead ends: 988 [2021-11-03 04:15:59,003 INFO L226 Difference]: Without dead ends: 988 [2021-11-03 04:15:59,004 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:15:59,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2021-11-03 04:15:59,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 988. [2021-11-03 04:15:59,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 953 states have (on average 3.142707240293809) internal successors, (2995), 987 states have internal predecessors, (2995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:59,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 2995 transitions. [2021-11-03 04:15:59,045 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 2995 transitions. Word has length 5 [2021-11-03 04:15:59,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:59,047 INFO L470 AbstractCegarLoop]: Abstraction has 988 states and 2995 transitions. [2021-11-03 04:15:59,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:59,048 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 2995 transitions. [2021-11-03 04:15:59,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 04:15:59,048 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:59,048 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 04:15:59,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:59,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:59,260 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-03 04:15:59,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:59,260 INFO L85 PathProgramCache]: Analyzing trace with hash 370586895, now seen corresponding path program 1 times [2021-11-03 04:15:59,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:59,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142060516] [2021-11-03 04:15:59,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:59,261 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:59,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:59,266 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:59,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:15:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:59,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:15:59,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:59,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:59,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:15:59,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:59,395 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:15:59,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142060516] [2021-11-03 04:15:59,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142060516] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:15:59,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:15:59,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-11-03 04:15:59,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928172702] [2021-11-03 04:15:59,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:15:59,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:15:59,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:15:59,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:15:59,398 INFO L87 Difference]: Start difference. First operand 988 states and 2995 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:59,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:15:59,419 INFO L93 Difference]: Finished difference Result 867 states and 2610 transitions. [2021-11-03 04:15:59,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:15:59,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-03 04:15:59,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:15:59,429 INFO L225 Difference]: With dead ends: 867 [2021-11-03 04:15:59,429 INFO L226 Difference]: Without dead ends: 867 [2021-11-03 04:15:59,430 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:15:59,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2021-11-03 04:15:59,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 867. [2021-11-03 04:15:59,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 841 states have (on average 3.103448275862069) internal successors, (2610), 866 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:59,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 2610 transitions. [2021-11-03 04:15:59,474 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 2610 transitions. Word has length 5 [2021-11-03 04:15:59,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:15:59,474 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 2610 transitions. [2021-11-03 04:15:59,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:15:59,475 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 2610 transitions. [2021-11-03 04:15:59,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 04:15:59,475 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:15:59,476 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 04:15:59,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:15:59,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:15:59,688 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-03 04:15:59,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:15:59,688 INFO L85 PathProgramCache]: Analyzing trace with hash 370586906, now seen corresponding path program 1 times [2021-11-03 04:15:59,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:15:59,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476480084] [2021-11-03 04:15:59,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:15:59,689 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:15:59,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:15:59,690 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:15:59,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:15:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:15:59,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:15:59,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:15:59,825 INFO L354 Elim1Store]: treesize reduction 38, result has 30.9 percent of original size [2021-11-03 04:15:59,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 31 [2021-11-03 04:15:59,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:15:59,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:16:00,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:16:00,010 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:16:00,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476480084] [2021-11-03 04:16:00,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476480084] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:16:00,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:16:00,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-03 04:16:00,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296192224] [2021-11-03 04:16:00,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:16:00,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:16:00,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:16:00,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:16:00,017 INFO L87 Difference]: Start difference. First operand 867 states and 2610 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:00,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:16:00,122 INFO L93 Difference]: Finished difference Result 746 states and 2225 transitions. [2021-11-03 04:16:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:16:00,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-03 04:16:00,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:16:00,130 INFO L225 Difference]: With dead ends: 746 [2021-11-03 04:16:00,130 INFO L226 Difference]: Without dead ends: 746 [2021-11-03 04:16:00,130 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:16:00,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-11-03 04:16:00,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2021-11-03 04:16:00,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 729 states have (on average 3.0521262002743486) internal successors, (2225), 745 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:00,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 2225 transitions. [2021-11-03 04:16:00,162 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 2225 transitions. Word has length 5 [2021-11-03 04:16:00,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:16:00,163 INFO L470 AbstractCegarLoop]: Abstraction has 746 states and 2225 transitions. [2021-11-03 04:16:00,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:00,163 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 2225 transitions. [2021-11-03 04:16:00,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 04:16:00,164 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:16:00,165 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:16:00,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:16:00,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:16:00,376 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-03 04:16:00,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:16:00,377 INFO L85 PathProgramCache]: Analyzing trace with hash 2088902924, now seen corresponding path program 1 times [2021-11-03 04:16:00,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:16:00,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198263354] [2021-11-03 04:16:00,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:16:00,378 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:16:00,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:16:00,379 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:16:00,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:16:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:16:00,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:16:00,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:16:00,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:16:00,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:16:03,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:16:03,012 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:16:03,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198263354] [2021-11-03 04:16:03,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198263354] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:16:03,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:16:03,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-11-03 04:16:03,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867392546] [2021-11-03 04:16:03,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 04:16:03,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:16:03,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 04:16:03,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=68, Unknown=1, NotChecked=0, Total=90 [2021-11-03 04:16:03,014 INFO L87 Difference]: Start difference. First operand 746 states and 2225 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:03,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:16:03,842 INFO L93 Difference]: Finished difference Result 625 states and 1840 transitions. [2021-11-03 04:16:03,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:16:03,843 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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 8 [2021-11-03 04:16:03,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:16:03,849 INFO L225 Difference]: With dead ends: 625 [2021-11-03 04:16:03,849 INFO L226 Difference]: Without dead ends: 609 [2021-11-03 04:16:03,850 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=32, Invalid=99, Unknown=1, NotChecked=0, Total=132 [2021-11-03 04:16:03,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2021-11-03 04:16:03,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2021-11-03 04:16:03,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 601 states have (on average 2.988352745424293) internal successors, (1796), 608 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:03,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 1796 transitions. [2021-11-03 04:16:03,876 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 1796 transitions. Word has length 8 [2021-11-03 04:16:03,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:16:03,877 INFO L470 AbstractCegarLoop]: Abstraction has 609 states and 1796 transitions. [2021-11-03 04:16:03,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:16:03,877 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 1796 transitions. [2021-11-03 04:16:03,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-03 04:16:03,879 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:16:03,879 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:16:03,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-03 04:16:04,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:16:04,091 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err1REQUIRES_VIOLATION === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION (and 15 more)] === [2021-11-03 04:16:04,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:16:04,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1134982616, now seen corresponding path program 1 times [2021-11-03 04:16:04,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:16:04,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381198601] [2021-11-03 04:16:04,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:16:04,092 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:16:04,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:16:04,093 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:16:04,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:16:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:16:04,185 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 04:16:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:16:04,256 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-03 04:16:04,256 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 04:16:04,257 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t1Err1REQUIRES_VIOLATION [2021-11-03 04:16:04,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:16:04,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-11-03 04:16:04,259 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-11-03 04:16:04,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-11-03 04:16:04,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-11-03 04:16:04,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-03 04:16:04,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-03 04:16:04,260 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-03 04:16:04,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-03 04:16:04,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-03 04:16:04,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATION [2021-11-03 04:16:04,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1REQUIRES_VIOLATION [2021-11-03 04:16:04,261 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATION [2021-11-03 04:16:04,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATION [2021-11-03 04:16:04,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATION [2021-11-03 04:16:04,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATION [2021-11-03 04:16:04,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATION [2021-11-03 04:16:04,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:16:04,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:16:04,465 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:16:04,470 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-03 04:16:04,470 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:16:04,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:16:04 BasicIcfg [2021-11-03 04:16:04,520 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:16:04,521 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:16:04,521 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:16:04,522 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:16:04,522 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:15:45" (3/4) ... [2021-11-03 04:16:04,526 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-03 04:16:04,600 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 04:16:04,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:16:04,602 INFO L168 Benchmark]: Toolchain (without parser) took 21295.10 ms. Allocated memory was 60.8 MB in the beginning and 119.5 MB in the end (delta: 58.7 MB). Free memory was 38.6 MB in the beginning and 39.1 MB in the end (delta: -478.6 kB). Peak memory consumption was 57.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:16:04,602 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 60.8 MB. Free memory is still 42.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:16:04,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1026.11 ms. Allocated memory is still 60.8 MB. Free memory was 38.4 MB in the beginning and 21.7 MB in the end (delta: 16.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:16:04,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.16 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 21.7 MB in the beginning and 62.4 MB in the end (delta: -40.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:16:04,603 INFO L168 Benchmark]: Boogie Preprocessor took 70.20 ms. Allocated memory is still 81.8 MB. Free memory was 62.2 MB in the beginning and 60.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:16:04,604 INFO L168 Benchmark]: RCFGBuilder took 649.71 ms. Allocated memory is still 81.8 MB. Free memory was 60.3 MB in the beginning and 46.4 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:16:04,604 INFO L168 Benchmark]: TraceAbstraction took 19364.90 ms. Allocated memory was 81.8 MB in the beginning and 119.5 MB in the end (delta: 37.7 MB). Free memory was 46.0 MB in the beginning and 42.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:16:04,605 INFO L168 Benchmark]: Witness Printer took 79.38 ms. Allocated memory is still 119.5 MB. Free memory was 42.8 MB in the beginning and 39.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:16:04,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 60.8 MB. Free memory is still 42.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1026.11 ms. Allocated memory is still 60.8 MB. Free memory was 38.4 MB in the beginning and 21.7 MB in the end (delta: 16.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.16 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 21.7 MB in the beginning and 62.4 MB in the end (delta: -40.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.20 ms. Allocated memory is still 81.8 MB. Free memory was 62.2 MB in the beginning and 60.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 649.71 ms. Allocated memory is still 81.8 MB. Free memory was 60.3 MB in the beginning and 46.4 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19364.90 ms. Allocated memory was 81.8 MB in the beginning and 119.5 MB in the end (delta: 37.7 MB). Free memory was 46.0 MB in the beginning and 42.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. * Witness Printer took 79.38 ms. Allocated memory is still 119.5 MB. Free memory was 42.8 MB in the beginning and 39.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.7s, 99 PlacesBefore, 45 PlacesAfterwards, 101 TransitionsBefore, 45 TransitionsAfterwards, 2470 CoEnabledTransitionPairs, 6 FixpointIterations, 41 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 6888 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3576, positive: 3358, positive conditional: 0, positive unconditional: 3358, negative: 218, negative conditional: 0, negative unconditional: 218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1484, positive: 1440, positive conditional: 0, positive unconditional: 1440, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1484, positive: 1428, positive conditional: 0, positive unconditional: 1428, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 893, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 840, negative conditional: 0, negative unconditional: 840, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3576, positive: 1918, positive conditional: 0, positive unconditional: 1918, negative: 174, negative conditional: 0, negative unconditional: 174, unknown: 1484, unknown conditional: 0, unknown unconditional: 1484] , Statistics on independence cache: Total cache size (in pairs): 336, Positive cache size: 310, Positive conditional cache size: 0, Positive unconditional cache size: 310, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1049]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1037] 0 int size; [L1038] 0 int ind; [L1039] 0 int j = 2, i = 1; [L1040] 0 int x, y, z; [L1068] 0 size = __VERIFIER_nondet_int() [L1069] COND FALSE 0 !(size < 1 || size > 20) [L1072] 0 int *a = (int *)malloc(size); [L1073] 0 pthread_t id1, id2; [L1074] 0 ind = 0 [L1075] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, a) VAL [arg={1:0}, i=1, ind=0, j=2, size=2, x=0, y=0, z=0] [L1042] 1 x = 1 VAL [arg={1:0}, arg={1:0}, i=1, ind=0, j=2, size=2, x=1, y=0, z=0] [L1043] 1 y = 1 [L1044] 1 int *a = (int *)arg; VAL [a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1045] COND FALSE 1 !(y == 1 && z) VAL [a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1047] COND TRUE 1 ind < size - 1 VAL [a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1048] 1 ++ind [L1049] 1 a[ind] = i - UnprovableResult [Line: 1067]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1075]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1075]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1076]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1076]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1076]: 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: 1075]: 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: 1049]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1062]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1062]: 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, 127 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 19.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 323 SDtfs, 411 SDslu, 429 SDs, 0 SdLazy, 197 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1135occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 48 ConstructedInterpolants, 7 QuantifiedInterpolants, 632 SizeOfPredicates, 11 NumberOfNonLiveVariables, 325 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-03 04:16:04,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4bbbe9-5331-46f7-aed5-a80d2566758b/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)