./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI --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 b69b1cc5e7bc7b36d5ea64018b501429b633eb9552e27aac1ef773c6042e4013 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:22:32,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:22:32,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:22:32,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:22:32,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:22:32,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:22:32,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:22:32,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:22:32,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:22:32,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:22:32,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:22:32,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:22:32,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:22:32,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:22:32,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:22:32,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:22:32,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:22:32,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:22:32,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:22:32,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:22:32,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:22:32,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:22:32,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:22:32,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:22:32,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:22:32,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:22:32,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:22:32,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:22:32,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:22:32,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:22:32,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:22:32,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:22:32,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:22:32,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:22:32,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:22:32,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:22:32,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:22:32,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:22:32,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:22:32,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:22:32,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:22:32,709 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-03 02:22:32,731 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:22:32,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:22:32,732 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:22:32,733 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:22:32,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:22:32,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:22:32,734 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:22:32,734 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:22:32,735 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:22:32,735 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:22:32,735 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:22:32,736 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:22:32,736 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:22:32,736 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:22:32,736 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:22:32,737 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:22:32,737 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:22:32,737 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:22:32,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-03 02:22:32,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-03 02:22:32,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:22:32,739 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:22:32,739 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:22:32,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:22:32,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:22:32,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:22:32,740 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-03 02:22:32,740 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-03 02:22:32,741 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-03 02:22:32,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:22:32,741 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 02:22:32,742 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:22:32,742 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:22:32,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:22:32,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:22:32,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:22:32,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:22:32,743 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:22:32,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:22:32,744 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:22:32,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:22:32,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:22:32,745 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b69b1cc5e7bc7b36d5ea64018b501429b633eb9552e27aac1ef773c6042e4013 [2022-11-03 02:22:33,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:22:33,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:22:33,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:22:33,061 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:22:33,062 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:22:33,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2022-11-03 02:22:33,140 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/data/bb04317b4/0bb5b1ec95eb4292ae071e420b873a38/FLAG4c95df4de [2022-11-03 02:22:33,690 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:22:33,691 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2022-11-03 02:22:33,703 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/data/bb04317b4/0bb5b1ec95eb4292ae071e420b873a38/FLAG4c95df4de [2022-11-03 02:22:33,972 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/data/bb04317b4/0bb5b1ec95eb4292ae071e420b873a38 [2022-11-03 02:22:33,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:22:33,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:22:33,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:22:33,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:22:33,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:22:33,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:22:33" (1/1) ... [2022-11-03 02:22:33,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@665d8ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:33, skipping insertion in model container [2022-11-03 02:22:33,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:22:33" (1/1) ... [2022-11-03 02:22:33,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:22:34,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:22:34,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:22:34,598 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-03 02:22:34,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@601093c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:34, skipping insertion in model container [2022-11-03 02:22:34,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:22:34,600 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-03 02:22:34,603 INFO L158 Benchmark]: Toolchain (without parser) took 623.22ms. Allocated memory is still 100.7MB. Free memory was 58.2MB in the beginning and 72.8MB in the end (delta: -14.6MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-11-03 02:22:34,604 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:22:34,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.66ms. Allocated memory is still 100.7MB. Free memory was 58.0MB in the beginning and 72.8MB in the end (delta: -14.8MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-11-03 02:22:34,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.66ms. Allocated memory is still 100.7MB. Free memory was 58.0MB in the beginning and 72.8MB in the end (delta: -14.8MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI --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 b69b1cc5e7bc7b36d5ea64018b501429b633eb9552e27aac1ef773c6042e4013 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:22:37,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:22:37,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:22:37,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:22:37,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:22:37,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:22:37,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:22:37,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:22:37,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:22:37,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:22:37,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:22:37,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:22:37,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:22:37,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:22:37,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:22:37,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:22:37,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:22:37,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:22:37,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:22:37,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:22:37,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:22:37,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:22:37,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:22:37,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:22:37,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:22:37,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:22:37,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:22:37,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:22:37,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:22:37,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:22:37,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:22:37,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:22:37,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:22:37,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:22:37,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:22:37,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:22:37,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:22:37,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:22:37,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:22:37,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:22:37,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:22:37,350 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-03 02:22:37,402 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:22:37,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:22:37,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:22:37,404 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:22:37,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:22:37,405 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:22:37,406 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:22:37,406 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:22:37,406 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:22:37,407 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:22:37,408 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:22:37,408 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:22:37,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-03 02:22:37,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-03 02:22:37,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:22:37,411 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:22:37,411 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:22:37,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:22:37,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:22:37,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:22:37,412 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-03 02:22:37,412 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-03 02:22:37,413 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-03 02:22:37,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:22:37,413 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 02:22:37,413 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 02:22:37,414 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 02:22:37,414 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:22:37,414 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:22:37,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:22:37,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 02:22:37,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:22:37,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:22:37,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:22:37,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:22:37,417 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 02:22:37,417 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 02:22:37,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:22:37,418 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 02:22:37,418 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_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b69b1cc5e7bc7b36d5ea64018b501429b633eb9552e27aac1ef773c6042e4013 [2022-11-03 02:22:37,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:22:37,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:22:37,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:22:37,840 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:22:37,841 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:22:37,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2022-11-03 02:22:37,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/data/60dee5f5c/e9b2edfeb6aa49e4a857b8d687aec739/FLAG38564a3f2 [2022-11-03 02:22:38,464 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:22:38,465 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2022-11-03 02:22:38,482 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/data/60dee5f5c/e9b2edfeb6aa49e4a857b8d687aec739/FLAG38564a3f2 [2022-11-03 02:22:38,759 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/data/60dee5f5c/e9b2edfeb6aa49e4a857b8d687aec739 [2022-11-03 02:22:38,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:22:38,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:22:38,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:22:38,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:22:38,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:22:38,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:38,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c53c547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:38, skipping insertion in model container [2022-11-03 02:22:38,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:22:38" (1/1) ... [2022-11-03 02:22:38,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:22:38,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:22:39,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:22:39,307 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-03 02:22:39,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:22:39,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:22:39,382 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:22:39,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:22:39,480 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:22:39,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:39 WrapperNode [2022-11-03 02:22:39,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:22:39,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:22:39,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:22:39,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:22:39,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:39" (1/1) ... [2022-11-03 02:22:39,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:39" (1/1) ... [2022-11-03 02:22:39,539 INFO L138 Inliner]: procedures = 165, calls = 70, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 22 [2022-11-03 02:22:39,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:22:39,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:22:39,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:22:39,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:22:39,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:39" (1/1) ... [2022-11-03 02:22:39,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:39" (1/1) ... [2022-11-03 02:22:39,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:39" (1/1) ... [2022-11-03 02:22:39,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:39" (1/1) ... [2022-11-03 02:22:39,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:39" (1/1) ... [2022-11-03 02:22:39,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:39" (1/1) ... [2022-11-03 02:22:39,563 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:39" (1/1) ... [2022-11-03 02:22:39,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:39" (1/1) ... [2022-11-03 02:22:39,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:22:39,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:22:39,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:22:39,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:22:39,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:39" (1/1) ... [2022-11-03 02:22:39,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:22:39,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:39,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:22:39,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:22:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:22:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:22:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:22:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:22:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:22:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:22:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:22:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:22:39,836 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:22:39,839 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:22:40,056 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:22:40,063 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:22:40,063 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:22:40,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:22:40 BoogieIcfgContainer [2022-11-03 02:22:40,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:22:40,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:22:40,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:22:40,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:22:40,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:22:38" (1/3) ... [2022-11-03 02:22:40,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cf0b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:22:40, skipping insertion in model container [2022-11-03 02:22:40,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:39" (2/3) ... [2022-11-03 02:22:40,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cf0b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:22:40, skipping insertion in model container [2022-11-03 02:22:40,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:22:40" (3/3) ... [2022-11-03 02:22:40,075 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test1-2.i [2022-11-03 02:22:40,097 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:22:40,097 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-03 02:22:40,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:22:40,156 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6b76979b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:22:40,156 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-03 02:22:40,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 22 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:22:40,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:22:40,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:40,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:40,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2022-11-03 02:22:40,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:40,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1422973257, now seen corresponding path program 1 times [2022-11-03 02:22:40,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:40,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270006974] [2022-11-03 02:22:40,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:40,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:40,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:40,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:40,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 02:22:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:40,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:22:40,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:40,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:40,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:40,389 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:40,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270006974] [2022-11-03 02:22:40,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270006974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:40,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:40,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:22:40,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941627083] [2022-11-03 02:22:40,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:40,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:22:40,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:40,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:22:40,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:40,441 INFO L87 Difference]: Start difference. First operand has 25 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 22 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:22:40,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:40,477 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2022-11-03 02:22:40,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:22:40,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-11-03 02:22:40,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:40,487 INFO L225 Difference]: With dead ends: 23 [2022-11-03 02:22:40,487 INFO L226 Difference]: Without dead ends: 21 [2022-11-03 02:22:40,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:40,492 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:40,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 61 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:22:40,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-03 02:22:40,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-03 02:22:40,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 18 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:22:40,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-11-03 02:22:40,528 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 9 [2022-11-03 02:22:40,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:40,529 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-11-03 02:22:40,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:22:40,529 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-11-03 02:22:40,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:22:40,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:40,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:40,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-03 02:22:40,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:40,735 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2022-11-03 02:22:40,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:40,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1162497963, now seen corresponding path program 1 times [2022-11-03 02:22:40,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:40,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523105518] [2022-11-03 02:22:40,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:40,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:40,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:40,739 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:40,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 02:22:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:40,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:22:40,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:40,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:40,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:40,970 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:40,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523105518] [2022-11-03 02:22:40,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523105518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:40,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:40,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:22:40,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103542696] [2022-11-03 02:22:40,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:40,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:40,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:40,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:40,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:40,975 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:22:41,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:41,077 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2022-11-03 02:22:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:22:41,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-03 02:22:41,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:41,080 INFO L225 Difference]: With dead ends: 35 [2022-11-03 02:22:41,080 INFO L226 Difference]: Without dead ends: 35 [2022-11-03 02:22:41,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:41,082 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 28 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:41,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 32 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:22:41,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-03 02:22:41,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2022-11-03 02:22:41,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 25 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:22:41,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-11-03 02:22:41,089 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 10 [2022-11-03 02:22:41,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:41,089 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-11-03 02:22:41,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:22:41,090 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-11-03 02:22:41,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:22:41,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:41,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:41,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:41,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:41,303 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2022-11-03 02:22:41,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:41,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1133868812, now seen corresponding path program 1 times [2022-11-03 02:22:41,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:41,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166235693] [2022-11-03 02:22:41,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:41,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:41,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:41,308 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:41,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 02:22:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:41,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 02:22:41,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:41,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:41,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:41,461 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:41,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166235693] [2022-11-03 02:22:41,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166235693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:41,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:41,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:22:41,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577715797] [2022-11-03 02:22:41,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:41,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:22:41,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:41,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:22:41,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:41,464 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:22:41,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:41,565 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2022-11-03 02:22:41,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:22:41,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-03 02:22:41,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:41,567 INFO L225 Difference]: With dead ends: 31 [2022-11-03 02:22:41,572 INFO L226 Difference]: Without dead ends: 31 [2022-11-03 02:22:41,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:41,573 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 22 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:41,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 62 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:22:41,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-03 02:22:41,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2022-11-03 02:22:41,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 24 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:22:41,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2022-11-03 02:22:41,589 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 10 [2022-11-03 02:22:41,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:41,590 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2022-11-03 02:22:41,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:22:41,592 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2022-11-03 02:22:41,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:22:41,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:41,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:41,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:41,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:41,805 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2022-11-03 02:22:41,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:41,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1677698439, now seen corresponding path program 1 times [2022-11-03 02:22:41,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:41,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036879739] [2022-11-03 02:22:41,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:41,812 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:41,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:41,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:41,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 02:22:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:41,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 02:22:41,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:41,907 INFO L390 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 7 [2022-11-03 02:22:41,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:41,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:41,948 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:22:41,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036879739] [2022-11-03 02:22:41,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036879739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:41,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:41,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:22:41,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915891123] [2022-11-03 02:22:41,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:41,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:22:41,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:22:41,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:22:41,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:41,951 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:22:41,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:41,991 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2022-11-03 02:22:41,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:22:41,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-03 02:22:41,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:41,993 INFO L225 Difference]: With dead ends: 27 [2022-11-03 02:22:41,993 INFO L226 Difference]: Without dead ends: 27 [2022-11-03 02:22:41,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:41,994 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:41,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:22:41,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-03 02:22:41,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-03 02:22:41,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 23 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:22:41,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-11-03 02:22:41,999 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 11 [2022-11-03 02:22:42,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:42,000 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-11-03 02:22:42,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:22:42,001 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-11-03 02:22:42,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:22:42,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:42,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:42,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:42,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:42,213 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 4 more)] === [2022-11-03 02:22:42,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:42,214 INFO L85 PathProgramCache]: Analyzing trace with hash 220275033, now seen corresponding path program 1 times [2022-11-03 02:22:42,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:22:42,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785409787] [2022-11-03 02:22:42,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:42,215 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:22:42,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:22:42,216 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:22:42,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 02:22:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:22:42,268 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:22:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:22:42,311 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-03 02:22:42,311 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:22:42,313 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (6 of 7 remaining) [2022-11-03 02:22:42,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (5 of 7 remaining) [2022-11-03 02:22:42,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (4 of 7 remaining) [2022-11-03 02:22:42,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (3 of 7 remaining) [2022-11-03 02:22:42,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (2 of 7 remaining) [2022-11-03 02:22:42,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (1 of 7 remaining) [2022-11-03 02:22:42,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-03 02:22:42,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:42,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:22:42,528 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-03 02:22:42,533 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:22:42,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:22:42 BoogieIcfgContainer [2022-11-03 02:22:42,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:22:42,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:22:42,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:22:42,558 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:22:42,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:22:40" (3/4) ... [2022-11-03 02:22:42,561 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-03 02:22:42,610 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:22:42,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:22:42,612 INFO L158 Benchmark]: Toolchain (without parser) took 3848.26ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 49.3MB in the beginning and 44.3MB in the end (delta: 5.0MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2022-11-03 02:22:42,612 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 69.2MB. Free memory was 50.5MB in the beginning and 50.5MB in the end (delta: 49.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:22:42,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 716.74ms. Allocated memory is still 69.2MB. Free memory was 49.1MB in the beginning and 36.1MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 02:22:42,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.25ms. Allocated memory is still 69.2MB. Free memory was 36.1MB in the beginning and 34.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:22:42,614 INFO L158 Benchmark]: Boogie Preprocessor took 26.63ms. Allocated memory is still 69.2MB. Free memory was 34.0MB in the beginning and 32.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:22:42,617 INFO L158 Benchmark]: RCFGBuilder took 498.00ms. Allocated memory is still 69.2MB. Free memory was 32.4MB in the beginning and 45.2MB in the end (delta: -12.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-11-03 02:22:42,618 INFO L158 Benchmark]: TraceAbstraction took 2489.12ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 44.6MB in the beginning and 45.8MB in the end (delta: -1.2MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-11-03 02:22:42,618 INFO L158 Benchmark]: Witness Printer took 53.09ms. Allocated memory is still 86.0MB. Free memory was 45.8MB in the beginning and 44.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:22:42,622 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 69.2MB. Free memory was 50.5MB in the beginning and 50.5MB in the end (delta: 49.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 716.74ms. Allocated memory is still 69.2MB. Free memory was 49.1MB in the beginning and 36.1MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.25ms. Allocated memory is still 69.2MB. Free memory was 36.1MB in the beginning and 34.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.63ms. Allocated memory is still 69.2MB. Free memory was 34.0MB in the beginning and 32.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 498.00ms. Allocated memory is still 69.2MB. Free memory was 32.4MB in the beginning and 45.2MB in the end (delta: -12.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2489.12ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 44.6MB in the beginning and 45.8MB in the end (delta: -1.2MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 53.09ms. Allocated memory is still 86.0MB. Free memory was 45.8MB in the beginning and 44.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 760]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [ldv_global_msg_list={1:0}] [L763] CALL entry_point() [L758] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={1:0}, ldv_malloc(sizeof(int))={2:0}] [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] free(p) VAL [ldv_global_msg_list={1:0}, p={2:0}] [L759] free(p) VAL [ldv_global_msg_list={1:0}, p={2:0}] [L759] free(p) [L760] free(p) VAL [ldv_global_msg_list={1:0}, p={2:0}] [L760] free(p) VAL [ldv_global_msg_list={1:0}, p={2:0}] [L760] free(p) VAL [ldv_global_msg_list={1:0}, p={2:0}] - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 193 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 125 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 142 IncrementalHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 68 mSDtfsCounter, 142 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 161 SizeOfPredicates, 0 NumberOfNonLiveVariables, 147 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-03 02:22:42,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_663a46ce-be3f-47f3-84c7-74a5ff206604/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free)