./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8 --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 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 ............................................................................................................................................. 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_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8 --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 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:13:01,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:13:01,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:13:01,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:13:01,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:13:01,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:13:01,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:13:01,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:13:01,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:13:01,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:13:01,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:13:01,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:13:01,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:13:01,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:13:01,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:13:01,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:13:01,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:13:01,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:13:01,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:13:01,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:13:01,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:13:01,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:13:01,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:13:01,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:13:01,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:13:01,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:13:01,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:13:01,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:13:01,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:13:01,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:13:01,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:13:01,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:13:01,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:13:01,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:13:01,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:13:01,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:13:01,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:13:01,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:13:01,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:13:01,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:13:01,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:13:01,756 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-13 08:13:01,815 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:13:01,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:13:01,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:13:01,818 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:13:01,818 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:13:01,829 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:13:01,830 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 08:13:01,830 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:13:01,830 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:13:01,831 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 08:13:01,832 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 08:13:01,832 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:13:01,833 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 08:13:01,833 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 08:13:01,833 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 08:13:01,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 08:13:01,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 08:13:01,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:13:01,835 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:13:01,835 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 08:13:01,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 08:13:01,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:13:01,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:13:01,837 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 08:13:01,837 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 08:13:01,837 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 08:13:01,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:13:01,838 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:13:01,838 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:13:01,838 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:13:01,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:13:01,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:13:01,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:13:01,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:13:01,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:13:01,840 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 08:13:01,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 08:13:01,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:13:01,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:13:01,842 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_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 [2021-10-13 08:13:02,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:13:02,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:13:02,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:13:02,187 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:13:02,187 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:13:02,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-13 08:13:02,275 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/data/80ebaddc0/6de8ad53d4b24952976dbdcd2a05b48b/FLAG741409213 [2021-10-13 08:13:02,919 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:13:02,920 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-13 08:13:02,943 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/data/80ebaddc0/6de8ad53d4b24952976dbdcd2a05b48b/FLAG741409213 [2021-10-13 08:13:03,170 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/data/80ebaddc0/6de8ad53d4b24952976dbdcd2a05b48b [2021-10-13 08:13:03,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:13:03,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:13:03,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:13:03,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:13:03,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:13:03,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:13:03" (1/1) ... [2021-10-13 08:13:03,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10414518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:03, skipping insertion in model container [2021-10-13 08:13:03,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:13:03" (1/1) ... [2021-10-13 08:13:03,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:13:03,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:13:03,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:13:03,815 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) [2021-10-13 08:13:03,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1048e24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:03, skipping insertion in model container [2021-10-13 08:13:03,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:13:03,817 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 08:13:03,820 INFO L168 Benchmark]: Toolchain (without parser) took 639.94 ms. Allocated memory is still 102.8 MB. Free memory was 68.6 MB in the beginning and 76.2 MB in the end (delta: -7.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:03,820 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 102.8 MB. Free memory is still 58.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:13:03,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.39 ms. Allocated memory is still 102.8 MB. Free memory was 68.4 MB in the beginning and 76.2 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:03,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 102.8 MB. Free memory is still 58.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 633.39 ms. Allocated memory is still 102.8 MB. Free memory was 68.4 MB in the beginning and 76.2 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.5 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-4e77c04 [2021-10-13 08:13:06,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:13:06,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:13:06,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:13:06,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:13:06,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:13:06,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:13:06,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:13:06,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:13:06,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:13:06,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:13:06,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:13:06,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:13:06,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:13:06,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:13:06,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:13:06,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:13:06,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:13:06,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:13:06,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:13:06,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:13:06,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:13:06,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:13:06,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:13:06,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:13:06,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:13:06,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:13:06,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:13:06,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:13:06,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:13:06,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:13:06,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:13:06,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:13:06,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:13:06,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:13:06,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:13:06,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:13:06,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:13:06,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:13:06,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:13:06,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:13:06,558 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-13 08:13:06,610 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:13:06,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:13:06,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:13:06,613 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:13:06,613 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:13:06,613 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:13:06,614 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:13:06,614 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:13:06,614 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:13:06,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 08:13:06,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 08:13:06,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:13:06,618 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:13:06,618 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 08:13:06,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 08:13:06,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:13:06,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:13:06,619 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 08:13:06,619 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 08:13:06,620 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 08:13:06,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:13:06,620 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:13:06,621 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 08:13:06,621 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 08:13:06,621 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:13:06,621 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:13:06,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:13:06,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 08:13:06,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:13:06,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:13:06,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:13:06,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:13:06,624 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 08:13:06,624 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 08:13:06,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:13:06,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:13:06,625 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_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e0e1098f21fb27be4a1372259b2e0fa3db81f74 [2021-10-13 08:13:07,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:13:07,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:13:07,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:13:07,043 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:13:07,044 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:13:07,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-13 08:13:07,130 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/data/bb0b1708b/94466fb816eb4e08b27f46fc9379928e/FLAG905ceb81b [2021-10-13 08:13:07,819 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:13:07,821 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-13 08:13:07,840 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/data/bb0b1708b/94466fb816eb4e08b27f46fc9379928e/FLAG905ceb81b [2021-10-13 08:13:08,015 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/data/bb0b1708b/94466fb816eb4e08b27f46fc9379928e [2021-10-13 08:13:08,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:13:08,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:13:08,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:13:08,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:13:08,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:13:08,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:13:08" (1/1) ... [2021-10-13 08:13:08,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c2b88f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:08, skipping insertion in model container [2021-10-13 08:13:08,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:13:08" (1/1) ... [2021-10-13 08:13:08,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:13:08,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:13:08,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:13:08,613 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 08:13:08,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:13:08,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:13:08,740 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:13:08,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:13:08,857 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:13:08,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:08 WrapperNode [2021-10-13 08:13:08,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:13:08,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:13:08,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:13:08,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:13:08,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:08" (1/1) ... [2021-10-13 08:13:08,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:08" (1/1) ... [2021-10-13 08:13:08,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:13:08,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:13:08,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:13:08,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:13:08,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:08" (1/1) ... [2021-10-13 08:13:08,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:08" (1/1) ... [2021-10-13 08:13:08,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:08" (1/1) ... [2021-10-13 08:13:08,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:08" (1/1) ... [2021-10-13 08:13:08,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:08" (1/1) ... [2021-10-13 08:13:08,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:08" (1/1) ... [2021-10-13 08:13:08,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:08" (1/1) ... [2021-10-13 08:13:08,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:13:08,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:13:08,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:13:08,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:13:08,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:08" (1/1) ... [2021-10-13 08:13:08,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:13:09,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:13:09,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:13:09,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:13:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 08:13:09,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:13:09,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 08:13:09,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-13 08:13:09,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:13:09,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:13:09,405 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:13:09,405 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-13 08:13:09,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:13:09 BoogieIcfgContainer [2021-10-13 08:13:09,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:13:09,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:13:09,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:13:09,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:13:09,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:13:08" (1/3) ... [2021-10-13 08:13:09,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407b32af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:13:09, skipping insertion in model container [2021-10-13 08:13:09,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:13:08" (2/3) ... [2021-10-13 08:13:09,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407b32af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:13:09, skipping insertion in model container [2021-10-13 08:13:09,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:13:09" (3/3) ... [2021-10-13 08:13:09,418 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test9.i [2021-10-13 08:13:09,427 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:13:09,427 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-13 08:13:09,496 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:13:09,507 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 08:13:09,507 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-13 08:13:09,534 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 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) [2021-10-13 08:13:09,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 08:13:09,559 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:09,560 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:09,561 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)] === [2021-10-13 08:13:09,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:09,579 INFO L82 PathProgramCache]: Analyzing trace with hash 119383820, now seen corresponding path program 1 times [2021-10-13 08:13:09,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:09,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208768420] [2021-10-13 08:13:09,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:09,600 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:09,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:09,605 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:09,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 08:13:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:09,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:13:09,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:09,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:09,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:09,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:09,947 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:09,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208768420] [2021-10-13 08:13:09,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208768420] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:09,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:09,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:13:09,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157560105] [2021-10-13 08:13:09,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:13:09,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:09,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:13:09,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:13:09,979 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 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 2.6666666666666665) 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) [2021-10-13 08:13:10,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:10,033 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2021-10-13 08:13:10,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:13:10,035 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 [2021-10-13 08:13:10,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:10,044 INFO L225 Difference]: With dead ends: 17 [2021-10-13 08:13:10,044 INFO L226 Difference]: Without dead ends: 15 [2021-10-13 08:13:10,046 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:13:10,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-13 08:13:10,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-13 08:13:10,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 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) [2021-10-13 08:13:10,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-13 08:13:10,079 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 8 [2021-10-13 08:13:10,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:10,080 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-13 08:13:10,080 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) [2021-10-13 08:13:10,081 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-10-13 08:13:10,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 08:13:10,082 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:10,082 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:10,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-13 08:13:10,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:10,306 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-13 08:13:10,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:10,307 INFO L82 PathProgramCache]: Analyzing trace with hash -594068823, now seen corresponding path program 1 times [2021-10-13 08:13:10,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:10,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984909662] [2021-10-13 08:13:10,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:10,309 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:10,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:10,311 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:10,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 08:13:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:10,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 08:13:10,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:10,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:10,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:10,711 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:10,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984909662] [2021-10-13 08:13:10,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984909662] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:10,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:10,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-13 08:13:10,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770716421] [2021-10-13 08:13:10,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 08:13:10,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:10,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 08:13:10,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 08:13:10,717 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-10-13 08:13:10,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:10,847 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2021-10-13 08:13:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 08:13:10,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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 9 [2021-10-13 08:13:10,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:10,849 INFO L225 Difference]: With dead ends: 25 [2021-10-13 08:13:10,849 INFO L226 Difference]: Without dead ends: 25 [2021-10-13 08:13:10,850 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.7ms TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2021-10-13 08:13:10,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-13 08:13:10,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 16. [2021-10-13 08:13:10,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 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) [2021-10-13 08:13:10,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-10-13 08:13:10,854 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 9 [2021-10-13 08:13:10,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:10,854 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-10-13 08:13:10,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-10-13 08:13:10,854 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-10-13 08:13:10,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 08:13:10,855 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:10,855 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:10,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:11,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:11,056 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-13 08:13:11,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:11,057 INFO L82 PathProgramCache]: Analyzing trace with hash -594059884, now seen corresponding path program 1 times [2021-10-13 08:13:11,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:11,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222897711] [2021-10-13 08:13:11,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:11,058 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:11,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:11,060 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:11,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 08:13:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:11,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:13:11,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:11,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:11,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:11,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:11,226 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:11,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222897711] [2021-10-13 08:13:11,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222897711] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:11,227 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:11,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 08:13:11,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484515251] [2021-10-13 08:13:11,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:13:11,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:11,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:13:11,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:13:11,239 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-13 08:13:11,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:11,271 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-10-13 08:13:11,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 08:13:11,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-10-13 08:13:11,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:11,274 INFO L225 Difference]: With dead ends: 28 [2021-10-13 08:13:11,274 INFO L226 Difference]: Without dead ends: 28 [2021-10-13 08:13:11,275 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:13:11,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-13 08:13:11,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2021-10-13 08:13:11,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 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) [2021-10-13 08:13:11,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-10-13 08:13:11,283 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2021-10-13 08:13:11,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:11,284 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-10-13 08:13:11,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-13 08:13:11,284 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-10-13 08:13:11,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 08:13:11,285 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:11,286 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:11,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:11,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:11,509 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)] === [2021-10-13 08:13:11,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:11,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1182794520, now seen corresponding path program 1 times [2021-10-13 08:13:11,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:11,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575402546] [2021-10-13 08:13:11,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:11,511 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:11,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:11,512 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:11,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 08:13:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:11,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:13:11,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:11,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:11,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:11,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:11,691 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:11,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575402546] [2021-10-13 08:13:11,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575402546] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:11,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:11,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 08:13:11,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856848466] [2021-10-13 08:13:11,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:13:11,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:11,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:13:11,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:11,697 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-10-13 08:13:11,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:11,719 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2021-10-13 08:13:11,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:13:11,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-10-13 08:13:11,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:11,723 INFO L225 Difference]: With dead ends: 26 [2021-10-13 08:13:11,723 INFO L226 Difference]: Without dead ends: 24 [2021-10-13 08:13:11,724 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:13:11,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-13 08:13:11,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 16. [2021-10-13 08:13:11,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2142857142857142) 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) [2021-10-13 08:13:11,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-10-13 08:13:11,730 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 9 [2021-10-13 08:13:11,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:11,730 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-13 08:13:11,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-10-13 08:13:11,733 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-13 08:13:11,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 08:13:11,734 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:11,735 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:11,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:11,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:11,949 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)] === [2021-10-13 08:13:11,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:11,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1236264274, now seen corresponding path program 1 times [2021-10-13 08:13:11,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:11,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852857383] [2021-10-13 08:13:11,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:11,953 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:11,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:11,955 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:11,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 08:13:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:12,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:13:12,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:12,076 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 [2021-10-13 08:13:12,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:12,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:12,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:12,241 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:12,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852857383] [2021-10-13 08:13:12,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852857383] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:12,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:12,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:13:12,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186535889] [2021-10-13 08:13:12,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:13:12,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:12,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:13:12,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:13:12,244 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2021-10-13 08:13:12,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:12,311 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-13 08:13:12,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:13:12,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 08:13:12,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:12,313 INFO L225 Difference]: With dead ends: 21 [2021-10-13 08:13:12,313 INFO L226 Difference]: Without dead ends: 21 [2021-10-13 08:13:12,315 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:13:12,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-13 08:13:12,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-13 08:13:12,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 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) [2021-10-13 08:13:12,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-10-13 08:13:12,321 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 10 [2021-10-13 08:13:12,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:12,321 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-13 08:13:12,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2021-10-13 08:13:12,322 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-10-13 08:13:12,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 08:13:12,323 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:12,323 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:12,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-13 08:13:12,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:12,536 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)] === [2021-10-13 08:13:12,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:12,537 INFO L82 PathProgramCache]: Analyzing trace with hash -2045610900, now seen corresponding path program 1 times [2021-10-13 08:13:12,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:12,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743260936] [2021-10-13 08:13:12,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:12,538 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:12,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:12,543 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:12,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 08:13:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:12,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 08:13:12,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:12,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:12,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:12,756 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:12,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743260936] [2021-10-13 08:13:12,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743260936] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:12,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:12,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 08:13:12,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741567623] [2021-10-13 08:13:12,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:13:12,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:12,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:13:12,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:13:12,758 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2021-10-13 08:13:12,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:12,804 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-10-13 08:13:12,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:13:12,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 08:13:12,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:12,807 INFO L225 Difference]: With dead ends: 23 [2021-10-13 08:13:12,808 INFO L226 Difference]: Without dead ends: 23 [2021-10-13 08:13:12,808 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:13:12,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-13 08:13:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 15. [2021-10-13 08:13:12,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 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) [2021-10-13 08:13:12,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-10-13 08:13:12,814 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2021-10-13 08:13:12,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:12,815 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-10-13 08:13:12,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2021-10-13 08:13:12,815 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-10-13 08:13:12,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 08:13:12,816 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:12,816 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:12,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:13,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:13,033 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)] === [2021-10-13 08:13:13,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:13,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1655975602, now seen corresponding path program 1 times [2021-10-13 08:13:13,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:13,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482062854] [2021-10-13 08:13:13,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:13,035 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:13,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:13,039 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:13,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 08:13:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:13,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 08:13:13,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:13,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:13,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:19,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:19,549 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:19,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482062854] [2021-10-13 08:13:19,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482062854] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:19,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:19,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-13 08:13:19,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259284398] [2021-10-13 08:13:19,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 08:13:19,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:19,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 08:13:19,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=49, Unknown=3, NotChecked=0, Total=72 [2021-10-13 08:13:19,552 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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) [2021-10-13 08:13:19,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:19,763 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-10-13 08:13:19,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 08:13:19,764 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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 12 [2021-10-13 08:13:19,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:19,765 INFO L225 Difference]: With dead ends: 22 [2021-10-13 08:13:19,765 INFO L226 Difference]: Without dead ends: 13 [2021-10-13 08:13:19,765 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 6281.5ms TimeCoverageRelationStatistics Valid=40, Invalid=89, Unknown=3, NotChecked=0, Total=132 [2021-10-13 08:13:19,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-13 08:13:19,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-13 08:13:19,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0) internal successors, (12), 12 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) [2021-10-13 08:13:19,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-10-13 08:13:19,768 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 12 [2021-10-13 08:13:19,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:19,768 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-10-13 08:13:19,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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) [2021-10-13 08:13:19,768 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-10-13 08:13:19,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 08:13:19,769 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:13:19,769 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:13:19,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:19,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:19,970 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-13 08:13:19,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:13:19,971 INFO L82 PathProgramCache]: Analyzing trace with hash 453601966, now seen corresponding path program 1 times [2021-10-13 08:13:19,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:13:19,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971708606] [2021-10-13 08:13:19,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:13:19,972 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:13:19,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:13:19,980 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:13:20,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 08:13:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:13:20,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:13:20,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:20,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:20,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:20,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:13:20,218 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:20,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971708606] [2021-10-13 08:13:20,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971708606] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:13:20,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:13:20,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 08:13:20,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76694308] [2021-10-13 08:13:20,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 08:13:20,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:20,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 08:13:20,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 08:13:20,221 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2021-10-13 08:13:20,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:20,238 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2021-10-13 08:13:20,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:13:20,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) Word has length 12 [2021-10-13 08:13:20,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:20,239 INFO L225 Difference]: With dead ends: 7 [2021-10-13 08:13:20,239 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 08:13:20,239 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 43.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 08:13:20,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 08:13:20,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 08:13:20,240 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) [2021-10-13 08:13:20,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 08:13:20,240 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-13 08:13:20,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:20,240 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 08:13:20,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2021-10-13 08:13:20,241 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 08:13:20,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 08:13:20,244 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 08:13:20,245 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 08:13:20,245 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 08:13:20,245 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 08:13:20,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:20,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:13:20,464 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:13:20,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:13:20 BoogieIcfgContainer [2021-10-13 08:13:20,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:13:20,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:13:20,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:13:20,467 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:13:20,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:13:09" (3/4) ... [2021-10-13 08:13:20,471 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 08:13:20,484 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 08:13:20,484 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 08:13:20,484 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:13:20,521 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 08:13:20,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:13:20,523 INFO L168 Benchmark]: Toolchain (without parser) took 12501.62 ms. Allocated memory was 71.3 MB in the beginning and 98.6 MB in the end (delta: 27.3 MB). Free memory was 51.5 MB in the beginning and 65.0 MB in the end (delta: -13.5 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:20,524 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 71.3 MB. Free memory was 52.6 MB in the beginning and 52.5 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:13:20,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 836.70 ms. Allocated memory is still 71.3 MB. Free memory was 51.4 MB in the beginning and 36.4 MB in the end (delta: 15.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:20,525 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.19 ms. Allocated memory is still 71.3 MB. Free memory was 36.4 MB in the beginning and 34.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:20,525 INFO L168 Benchmark]: Boogie Preprocessor took 55.86 ms. Allocated memory is still 71.3 MB. Free memory was 34.1 MB in the beginning and 32.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:20,526 INFO L168 Benchmark]: RCFGBuilder took 426.24 ms. Allocated memory was 71.3 MB in the beginning and 98.6 MB in the end (delta: 27.3 MB). Free memory was 32.8 MB in the beginning and 72.0 MB in the end (delta: -39.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:20,527 INFO L168 Benchmark]: TraceAbstraction took 11056.42 ms. Allocated memory is still 98.6 MB. Free memory was 71.1 MB in the beginning and 67.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:20,527 INFO L168 Benchmark]: Witness Printer took 54.02 ms. Allocated memory is still 98.6 MB. Free memory was 67.9 MB in the beginning and 65.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:20,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 71.3 MB. Free memory was 52.6 MB in the beginning and 52.5 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 836.70 ms. Allocated memory is still 71.3 MB. Free memory was 51.4 MB in the beginning and 36.4 MB in the end (delta: 15.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.19 ms. Allocated memory is still 71.3 MB. Free memory was 36.4 MB in the beginning and 34.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.86 ms. Allocated memory is still 71.3 MB. Free memory was 34.1 MB in the beginning and 32.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 426.24 ms. Allocated memory was 71.3 MB in the beginning and 98.6 MB in the end (delta: 27.3 MB). Free memory was 32.8 MB in the beginning and 72.0 MB in the end (delta: -39.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11056.42 ms. Allocated memory is still 98.6 MB. Free memory was 71.1 MB in the beginning and 67.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Witness Printer took 54.02 ms. Allocated memory is still 98.6 MB. Free memory was 67.9 MB in the beginning and 65.0 MB in the end (delta: 2.9 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: 766]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 766]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 766]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 775]: 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, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 10974.7ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 36.9ms, AutomataDifference: 652.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 108 SDtfs, 146 SDslu, 115 SDs, 0 SdLazy, 147 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 255.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 6554.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=5, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 51.1ms AutomataMinimizationTime, 8 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 107.0ms SsaConstructionTime, 158.8ms SatisfiabilityAnalysisTime, 7531.9ms InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 142 ConstructedInterpolants, 3 QuantifiedInterpolants, 574 SizeOfPredicates, 10 NumberOfNonLiveVariables, 293 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 08:13:20,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a38837-938a-4ada-9be7-4121976640a0/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...