./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE --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 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf ............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE --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 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:44:54,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:44:54,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:44:54,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:44:54,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:44:54,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:44:54,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:44:54,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:44:54,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:44:54,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:44:54,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:44:54,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:44:54,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:44:54,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:44:54,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:44:54,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:44:54,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:44:54,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:44:54,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:44:54,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:44:54,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:44:54,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:44:54,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:44:54,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:44:54,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:44:54,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:44:54,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:44:54,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:44:54,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:44:54,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:44:54,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:44:54,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:44:54,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:44:54,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:44:54,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:44:54,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:44:54,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:44:54,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:44:54,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:44:54,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:44:54,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:44:54,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-24 10:44:54,726 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:44:54,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:44:54,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:44:54,727 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:44:54,728 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:44:54,728 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:44:54,728 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:44:54,728 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:44:54,728 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:44:54,729 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:44:54,729 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:44:54,729 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:44:54,729 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:44:54,729 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:44:54,729 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:44:54,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 10:44:54,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 10:44:54,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:44:54,731 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:44:54,731 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 10:44:54,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:44:54,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:44:54,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:44:54,732 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-24 10:44:54,732 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-24 10:44:54,732 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-24 10:44:54,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:44:54,732 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:44:54,733 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:44:54,733 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:44:54,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:44:54,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:44:54,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:44:54,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:44:54,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:44:54,734 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:44:54,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:44:54,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:44:54,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:44:54,735 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_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf [2021-10-24 10:44:54,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:44:54,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:44:54,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:44:54,999 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:44:55,000 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:44:55,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-24 10:44:55,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/data/4043cd037/4ff00673eb3b4e18a2a765e46fa2838a/FLAGc101907f0 [2021-10-24 10:44:55,605 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:44:55,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-24 10:44:55,631 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/data/4043cd037/4ff00673eb3b4e18a2a765e46fa2838a/FLAGc101907f0 [2021-10-24 10:44:55,908 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/data/4043cd037/4ff00673eb3b4e18a2a765e46fa2838a [2021-10-24 10:44:55,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:44:55,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:44:55,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:44:55,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:44:55,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:44:55,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:44:55" (1/1) ... [2021-10-24 10:44:55,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3296ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:55, skipping insertion in model container [2021-10-24 10:44:55,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:44:55" (1/1) ... [2021-10-24 10:44:55,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:44:55,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:44:56,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:44:56,495 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-24 10:44:56,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@37dbd74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:44:56, skipping insertion in model container [2021-10-24 10:44:56,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:44:56,496 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:44:56,499 INFO L168 Benchmark]: Toolchain (without parser) took 583.61 ms. Allocated memory is still 102.8 MB. Free memory was 58.6 MB in the beginning and 75.4 MB in the end (delta: -16.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2021-10-24 10:44:56,500 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 102.8 MB. Free memory is still 77.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:44:56,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 573.76 ms. Allocated memory is still 102.8 MB. Free memory was 58.5 MB in the beginning and 75.4 MB in the end (delta: -16.9 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2021-10-24 10:44:56,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 102.8 MB. Free memory is still 77.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 573.76 ms. Allocated memory is still 102.8 MB. Free memory was 58.5 MB in the beginning and 75.4 MB in the end (delta: -16.9 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:44:58,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:44:58,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:44:58,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:44:58,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:44:58,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:44:58,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:44:58,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:44:58,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:44:58,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:44:58,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:44:58,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:44:58,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:44:58,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:44:58,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:44:58,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:44:58,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:44:58,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:44:58,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:44:58,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:44:58,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:44:58,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:44:58,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:44:58,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:44:58,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:44:58,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:44:58,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:44:58,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:44:58,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:44:58,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:44:58,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:44:58,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:44:58,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:44:58,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:44:58,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:44:58,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:44:58,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:44:58,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:44:58,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:44:58,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:44:58,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:44:58,838 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-24 10:44:58,888 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:44:58,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:44:58,890 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:44:58,890 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:44:58,890 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:44:58,890 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:44:58,891 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:44:58,891 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:44:58,891 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:44:58,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 10:44:58,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 10:44:58,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:44:58,897 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:44:58,897 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 10:44:58,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:44:58,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:44:58,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:44:58,898 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-24 10:44:58,899 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-24 10:44:58,899 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-24 10:44:58,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:44:58,899 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:44:58,899 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:44:58,900 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:44:58,900 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:44:58,900 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:44:58,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:44:58,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:44:58,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:44:58,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:44:58,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:44:58,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:44:58,902 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:44:58,902 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:44:58,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:44:58,903 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:44:58,903 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_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e73bee1ff131a549474bab511d8101c0585ce83d137ab03c9c7f9d80a198cf [2021-10-24 10:44:59,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:44:59,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:44:59,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:44:59,303 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:44:59,303 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:44:59,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-24 10:44:59,372 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/data/433712bb2/25654e2b9523402c9c89b5002b7c637a/FLAG0ee917a9d [2021-10-24 10:45:00,027 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:45:00,031 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2021-10-24 10:45:00,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/data/433712bb2/25654e2b9523402c9c89b5002b7c637a/FLAG0ee917a9d [2021-10-24 10:45:00,275 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/data/433712bb2/25654e2b9523402c9c89b5002b7c637a [2021-10-24 10:45:00,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:45:00,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:45:00,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:45:00,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:45:00,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:45:00,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:45:00" (1/1) ... [2021-10-24 10:45:00,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14022163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:00, skipping insertion in model container [2021-10-24 10:45:00,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:45:00" (1/1) ... [2021-10-24 10:45:00,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:45:00,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:45:00,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:45:00,882 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:45:00,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:45:00,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:45:00,994 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:45:01,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:45:01,143 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:45:01,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:01 WrapperNode [2021-10-24 10:45:01,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:45:01,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:45:01,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:45:01,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:45:01,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:01" (1/1) ... [2021-10-24 10:45:01,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:01" (1/1) ... [2021-10-24 10:45:01,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:45:01,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:45:01,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:45:01,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:45:01,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:01" (1/1) ... [2021-10-24 10:45:01,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:01" (1/1) ... [2021-10-24 10:45:01,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:01" (1/1) ... [2021-10-24 10:45:01,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:01" (1/1) ... [2021-10-24 10:45:01,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:01" (1/1) ... [2021-10-24 10:45:01,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:01" (1/1) ... [2021-10-24 10:45:01,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:01" (1/1) ... [2021-10-24 10:45:01,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:45:01,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:45:01,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:45:01,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:45:01,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:01" (1/1) ... [2021-10-24 10:45:01,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:45:01,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:45:01,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:45:01,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:45:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-24 10:45:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:45:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 10:45:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-24 10:45:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:45:01,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:45:01,563 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:45:01,564 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-24 10:45:01,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:45:01 BoogieIcfgContainer [2021-10-24 10:45:01,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:45:01,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:45:01,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:45:01,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:45:01,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:45:00" (1/3) ... [2021-10-24 10:45:01,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12db6437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:45:01, skipping insertion in model container [2021-10-24 10:45:01,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:01" (2/3) ... [2021-10-24 10:45:01,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12db6437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:45:01, skipping insertion in model container [2021-10-24 10:45:01,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:45:01" (3/3) ... [2021-10-24 10:45:01,573 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test8.i [2021-10-24 10:45:01,579 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:45:01,579 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-24 10:45:01,621 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:45:01,627 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:45:01,628 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-24 10:45:01,640 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:01,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 10:45:01,646 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:01,646 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 10:45:01,647 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-24 10:45:01,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:01,652 INFO L82 PathProgramCache]: Analyzing trace with hash 889508744, now seen corresponding path program 1 times [2021-10-24 10:45:01,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:01,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053402151] [2021-10-24 10:45:01,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:01,665 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:01,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:01,669 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:01,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:45:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:01,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:45:01,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:01,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:01,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:01,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:01,924 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:01,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053402151] [2021-10-24 10:45:01,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2053402151] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:01,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:01,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:45:01,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864202562] [2021-10-24 10:45:01,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:45:01,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:01,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:45:01,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:45:01,960 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 15 states have internal predecessors, (17), 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 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:02,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:02,011 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-24 10:45:02,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:45:02,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 6 [2021-10-24 10:45:02,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:02,020 INFO L225 Difference]: With dead ends: 15 [2021-10-24 10:45:02,021 INFO L226 Difference]: Without dead ends: 13 [2021-10-24 10:45:02,023 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:45:02,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-24 10:45:02,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-24 10:45:02,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:02,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-10-24 10:45:02,070 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 6 [2021-10-24 10:45:02,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:02,071 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-24 10:45:02,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:02,071 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-10-24 10:45:02,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-24 10:45:02,072 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:02,072 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:45:02,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:02,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:02,283 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-24 10:45:02,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:02,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1804975281, now seen corresponding path program 1 times [2021-10-24 10:45:02,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:02,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929406309] [2021-10-24 10:45:02,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:02,286 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:02,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:02,287 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:02,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:45:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:02,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:45:02,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:02,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:02,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:02,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:02,433 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:02,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929406309] [2021-10-24 10:45:02,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929406309] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:02,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:02,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-24 10:45:02,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277840178] [2021-10-24 10:45:02,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:45:02,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:02,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:45:02,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:45:02,442 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:02,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:02,510 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-10-24 10:45:02,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:45:02,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-24 10:45:02,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:02,511 INFO L225 Difference]: With dead ends: 23 [2021-10-24 10:45:02,511 INFO L226 Difference]: Without dead ends: 23 [2021-10-24 10:45:02,512 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:45:02,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-24 10:45:02,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 15. [2021-10-24 10:45:02,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 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) [2021-10-24 10:45:02,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-24 10:45:02,515 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2021-10-24 10:45:02,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:02,515 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-24 10:45:02,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:02,516 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-10-24 10:45:02,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-24 10:45:02,516 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:02,517 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:45:02,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:02,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:02,727 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-24 10:45:02,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:02,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1804967335, now seen corresponding path program 1 times [2021-10-24 10:45:02,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:02,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876322193] [2021-10-24 10:45:02,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:02,729 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:02,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:02,745 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:02,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:45:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:02,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:45:02,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:02,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:02,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:02,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:02,995 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:02,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876322193] [2021-10-24 10:45:02,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876322193] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:02,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:02,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-24 10:45:02,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179049884] [2021-10-24 10:45:02,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-24 10:45:02,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:03,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-24 10:45:03,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:45:03,008 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:03,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:03,149 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-10-24 10:45:03,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 10:45:03,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-24 10:45:03,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:03,150 INFO L225 Difference]: With dead ends: 21 [2021-10-24 10:45:03,150 INFO L226 Difference]: Without dead ends: 21 [2021-10-24 10:45:03,150 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 117.6ms TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2021-10-24 10:45:03,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-24 10:45:03,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 14. [2021-10-24 10:45:03,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:03,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-10-24 10:45:03,152 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 7 [2021-10-24 10:45:03,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:03,153 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-10-24 10:45:03,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:03,153 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-10-24 10:45:03,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-24 10:45:03,154 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:03,154 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:45:03,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:03,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:03,363 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-24 10:45:03,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:03,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1806822323, now seen corresponding path program 1 times [2021-10-24 10:45:03,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:03,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447961615] [2021-10-24 10:45:03,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:03,364 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:03,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:03,365 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:03,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:45:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:03,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:45:03,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:03,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:03,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:03,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:03,481 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:03,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447961615] [2021-10-24 10:45:03,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447961615] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:03,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:03,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:45:03,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447719389] [2021-10-24 10:45:03,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:45:03,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:03,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:45:03,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:45:03,489 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:03,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:03,506 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-10-24 10:45:03,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:45:03,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-24 10:45:03,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:03,507 INFO L225 Difference]: With dead ends: 20 [2021-10-24 10:45:03,507 INFO L226 Difference]: Without dead ends: 18 [2021-10-24 10:45:03,508 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:45:03,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-24 10:45:03,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 12. [2021-10-24 10:45:03,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:03,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-10-24 10:45:03,510 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2021-10-24 10:45:03,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:03,511 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-10-24 10:45:03,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:03,511 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-10-24 10:45:03,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-24 10:45:03,511 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:03,512 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:45:03,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:03,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:03,721 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-24 10:45:03,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:03,721 INFO L82 PathProgramCache]: Analyzing trace with hash 119412586, now seen corresponding path program 1 times [2021-10-24 10:45:03,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:03,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765752805] [2021-10-24 10:45:03,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:03,722 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:03,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:03,723 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:03,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:45:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:03,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:45:03,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:03,816 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-24 10:45:03,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:03,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:03,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:03,869 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:03,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765752805] [2021-10-24 10:45:03,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765752805] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:03,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:03,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:45:03,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124709998] [2021-10-24 10:45:03,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:45:03,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:03,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:45:03,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:45:03,871 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:03,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:03,906 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-10-24 10:45:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:45:03,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 [2021-10-24 10:45:03,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:03,907 INFO L225 Difference]: With dead ends: 17 [2021-10-24 10:45:03,907 INFO L226 Difference]: Without dead ends: 17 [2021-10-24 10:45:03,908 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:45:03,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-24 10:45:03,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-24 10:45:03,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:03,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-10-24 10:45:03,910 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2021-10-24 10:45:03,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:03,911 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-10-24 10:45:03,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:03,911 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-10-24 10:45:03,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-24 10:45:03,911 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:03,912 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:45:03,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:04,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:04,122 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-24 10:45:04,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:04,123 INFO L82 PathProgramCache]: Analyzing trace with hash 176670888, now seen corresponding path program 1 times [2021-10-24 10:45:04,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:04,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383884450] [2021-10-24 10:45:04,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:04,124 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:04,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:04,124 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:04,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:45:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:04,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:45:04,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:04,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:04,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:04,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:04,305 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:04,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383884450] [2021-10-24 10:45:04,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383884450] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:04,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:04,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-24 10:45:04,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110873871] [2021-10-24 10:45:04,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:45:04,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:04,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:45:04,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:45:04,307 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:04,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:04,332 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-24 10:45:04,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:45:04,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 [2021-10-24 10:45:04,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:04,333 INFO L225 Difference]: With dead ends: 13 [2021-10-24 10:45:04,333 INFO L226 Difference]: Without dead ends: 11 [2021-10-24 10:45:04,333 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:45:04,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-24 10:45:04,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-24 10:45:04,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:04,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2021-10-24 10:45:04,335 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 8 [2021-10-24 10:45:04,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:04,335 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2021-10-24 10:45:04,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:04,336 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2021-10-24 10:45:04,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:45:04,336 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:04,336 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:45:04,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:04,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:04,543 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-24 10:45:04,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:04,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1208620146, now seen corresponding path program 1 times [2021-10-24 10:45:04,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:04,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915632753] [2021-10-24 10:45:04,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:04,546 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:04,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:04,547 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:04,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-24 10:45:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:04,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-24 10:45:04,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:04,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:04,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:09,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:09,332 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:09,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915632753] [2021-10-24 10:45:09,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915632753] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:09,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:09,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 10:45:09,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527623562] [2021-10-24 10:45:09,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 10:45:09,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:09,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 10:45:09,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2021-10-24 10:45:09,334 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:09,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:09,453 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2021-10-24 10:45:09,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 10:45:09,453 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 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 10 [2021-10-24 10:45:09,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:09,454 INFO L225 Difference]: With dead ends: 10 [2021-10-24 10:45:09,454 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 10:45:09,454 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 4575.5ms TimeCoverageRelationStatistics Valid=40, Invalid=90, Unknown=2, NotChecked=0, Total=132 [2021-10-24 10:45:09,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 10:45:09,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 10:45:09,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:09,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 10:45:09,455 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-24 10:45:09,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:09,455 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 10:45:09,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:09,455 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 10:45:09,455 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 10:45:09,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:45:09,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:45:09,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-24 10:45:09,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:45:09,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:09,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:09,662 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:45:09,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:45:09 BoogieIcfgContainer [2021-10-24 10:45:09,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:45:09,670 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:45:09,670 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:45:09,670 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:45:09,671 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:45:01" (3/4) ... [2021-10-24 10:45:09,674 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 10:45:09,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-24 10:45:09,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-24 10:45:09,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 10:45:09,712 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:45:09,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:45:09,713 INFO L168 Benchmark]: Toolchain (without parser) took 9433.26 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 30.2 MB in the beginning and 31.7 MB in the end (delta: -1.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:45:09,714 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 35.4 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:45:09,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 862.89 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 29.9 MB in the beginning and 45.3 MB in the end (delta: -15.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:45:09,715 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.64 ms. Allocated memory is still 71.3 MB. Free memory was 45.3 MB in the beginning and 43.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:45:09,715 INFO L168 Benchmark]: Boogie Preprocessor took 25.67 ms. Allocated memory is still 71.3 MB. Free memory was 43.0 MB in the beginning and 41.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:45:09,716 INFO L168 Benchmark]: RCFGBuilder took 325.20 ms. Allocated memory is still 71.3 MB. Free memory was 41.7 MB in the beginning and 49.9 MB in the end (delta: -8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:45:09,716 INFO L168 Benchmark]: TraceAbstraction took 8102.40 ms. Allocated memory is still 71.3 MB. Free memory was 49.3 MB in the beginning and 34.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-10-24 10:45:09,716 INFO L168 Benchmark]: Witness Printer took 41.96 ms. Allocated memory is still 71.3 MB. Free memory was 34.2 MB in the beginning and 31.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:45:09,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 35.4 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 862.89 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 29.9 MB in the beginning and 45.3 MB in the end (delta: -15.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.64 ms. Allocated memory is still 71.3 MB. Free memory was 45.3 MB in the beginning and 43.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.67 ms. Allocated memory is still 71.3 MB. Free memory was 43.0 MB in the beginning and 41.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 325.20 ms. Allocated memory is still 71.3 MB. Free memory was 41.7 MB in the beginning and 49.9 MB in the end (delta: -8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8102.40 ms. Allocated memory is still 71.3 MB. Free memory was 49.3 MB in the beginning and 34.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Witness Printer took 41.96 ms. Allocated memory is still 71.3 MB. Free memory was 34.2 MB in the beginning and 31.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 769]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 8042.7ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 12.2ms, AutomataDifference: 519.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 69 SDtfs, 90 SDslu, 46 SDs, 0 SdLazy, 113 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 199.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4763.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=5, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 44.5ms AutomataMinimizationTime, 7 MinimizatonAttempts, 21 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 61.1ms SsaConstructionTime, 98.1ms SatisfiabilityAnalysisTime, 5349.1ms InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 92 ConstructedInterpolants, 3 QuantifiedInterpolants, 413 SizeOfPredicates, 9 NumberOfNonLiveVariables, 235 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-24 10:45:09,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aebe5a4c-de64-457c-bc6d-47378995ce0d/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...